Generally, under section 4943, the combined holdings of a private foundation and all disqualified persons (as defined in section 4946(a)) in any corporation conducting a business which is not substantially related (aside from the need of the foundation for income or funds or the use it makes of the profits derived) to the exempt purposes of the foundation are limited to 20 percent of the voting stock in such corporation. In addition, the combined holdings of a private foundation and all disqualified persons in any unincorporated business (other than a sole proprietorship) which is not substantially related (aside from the need of the foundation for income or funds or the use it makes of the profits derived) to the exempt purposes of such foundation are limited to 20 percent of the beneficial or profits interest in such business. In the case of a sole proprietorship which is not substantially related (within the meaning of the preceding sentence), section 4943 provides that a private foundation shall have no permitted holdings. These general provisions are subject to a number of exceptions and special provisions which will be described in following sections.

(a) Imposition of initial tax—(1) In general—(i) Initial tax. Section 4943(a)(1) imposes an initial excise tax (the “initial tax”) on the excess business holdings of a private foundation for each taxable year of the foundation which ends during the taxable period defined in section 4943(d)(2). The amount of such tax is equal to 5 percent of the total value of all the private foundation's excess business holdings in each of its business enterprises. In determining the value of the excess business holdings of the foundation subject to tax under section 4943, the rules set forth in §§ 20.2031-1 through 20.2031-3 of this chapter (Estate Tax Regulations) shall apply.

(ii) Disposition of certain excess business holdings within ninety days. In any case in which a private foundation acquires excess business holdings, other than as a result of a purchase by the foundation, the foundation shall not be subject to the taxes imposed by section 4943, but only if it disposes of an amount of its holdings so that it no longer has such excess business holdings within 90 days from the date on which it knows, or has reason to know, of the event which caused it to have such excess business holdings. Similarly, a private foundation shall not be subject to the taxes imposed by section 4943 because of its purchase of holdings where it did not know, or have reason to know of prior acquisitions by disqualified persons, but only if the foundation disposes of its excess holdings within the 90-day period described previously, and its purchase would not have created excess business holding but for such prior acquisitions by disqualified persons. In determining whether for purposes of this (ii) the foundation has disposed of such excess business holdings during such 90-day period, any disposition of holdings, by a disqualified person during such period shall be disregarded.

(iii) Extension of ninety day period. The period described in paragraph (a)(1)(ii) of this section, during which no tax shall be imposed under section 4943, shall be extended to include the period during which a foundation is prevented by federal or state securities laws from disposing of such excess business holdings.

(iv) Effect of disposition subject to material restrictions. If a private foundation disposes of an interest in a business enterprise but imposes any material restrictions or conditions that prevent the transferee from freely and effectively using or disposing of the transferred interest, then the transferor foundation will be treated as owning such interest until all such restrictions or conditions are eliminated (regardless of whether the transferee is treated for other purposes of the Code as owning such interest from the date of the transfer). However, a restriction or condition imposed in compliance with federal or state securities laws, or in accordance with the terms or conditions of the gift or bequest through which such interest was acquired by the foundation, shall not be considered a material restriction or condition imposed by a private foundation.

(v) Foundation knowledge of acquisitions made by disqualified persons. (A) For purposes of paragraph (a)(1)(ii) of this section, whether a private foundation will be treated as knowing, or having reason to know, of the acquisition of holdings by a disqualified person will depend on the facts and circumstances of each case. Factors which will be considered relevant to a determination that a private foundation did not know or had no reason to know of an acquisition are: the fact that it did not discover acquisitions made by disqualified persons through the use of procedures reasonably calculated to discover such holdings; the diversity of foundation holdings; and the existence of large numbers of disqualified persons who have little or no contact with the foundation or its managers.

(B) The provisions of paragraph (a)(1)(v)(A) of this section may be illustrated by the following example:

(vi) Holdings acquired other than by purchases. See section 4943(c)(6) and § 53.4943-6 for rules relating to the acquisition of certain holdings other than by purchase by the foundation or a disqualified person.

(2) Special rules. In applying subparagraph (1) of this paragraph, the tax imposed by section 4943(a)(1):

(i) Shall be imposed on the last day of the private foundation's taxable year, but

(ii) The amount of such tax and the value of the excess business holdings subject to such tax shall be determined with respect to the foundation's holdings (based upon voting power, profits or beneficial interest, or value, whichever is applicable) in any business enterprise as of that day during the foundation's taxable year when the foundation's excess holdings in such enterprise were the greatest.

(3) Examples. The provisions of this paragraph may be illustrated by the following examples:

(b) Additional tax. In any case in which the initial tax is imposed under section 4943(a) with respect to the holdings of a private foundation in any business enterprise, if, at the close of the taxable period (as defined in section 4943(d)(2) and § 53.4943-9) with respect to such holdings the foundation still has excess business holdings in such enterprise, there is imposed a tax under section 4943(b) equal to 200 percent of the value of such excess holdings as of the last day of the taxable period.

(a) Excess business holdings—(1) In general. For purposes of section 4943, the term “excess business holdings” means, with respect to the holdings of any private foundation in any business enterprise (as described in section 4943(d)(4)), the amount of stock or other interest in the enterprise which, except as provided in § 53.4943-2(a)(1), the foundation, or a disqualified person, would have to dispose of, or cause the disposition of, to a person other than a disqualified person (as defined in section 4946(a)) in order for the remaining holdings of the foundation in such enterprise to be permitted holdings (as defined in paragraphs (b) and (c) of this section). If a private foundation is required by section 4943 and the regulations thereunder to dispose of certain shares of a class of stock in a particular period of time and other shares of the same class of stock in a shorter period of time, any stock disposed of shall be charged first against those dispositions which must be made in such shorter period.

(2) Example. The provisions of this paragraph may be illustrated by the following example:

(b) Permitted holdings in an incorporated business enterprise—(1) In general—(i) Permitted holdings defined. Except as otherwise provided in section 4943(c) (2) and (4), the permitted holdings of any private foundation in an incorporated business enterprise (including a real estate investment trust, as defined in section 856) are:

(A) 20 percent of the voting stock in such enterprise reduced (but not below zero) by

(B) The percentage of voting stock in such enterprise actually or constructively owned by all disqualified persons.

(ii) Voting stock. For purposes of this section, the percentage of voting stock held by any person in a corporation is normally determined by reference to the power of stock to vote for the election of directors, with treasury stock and stock which is authorized but unissued being disregarded. Thus, for example, if a private foundation holds 20 percent of the shares of one class of stock in a corporation, which class is entitled to elect three directors, and such foundation holds no stock in the other class of stock, which is entitled to elect five directors, such foundation shall be treated as holding 7.5 percent of the voting stock because the class of stock it holds has 37.5 percent of such voting power, by reason of being able to elect three of the eight directors, and the foundation holds one-fifth of the shares of such class (20 percent of 37.5 percent is 7.5 percent). The fact that extraordinary corporate action (e.g., charter or by-law amendments) by a corporation may require the favorable vote of more than a majority of the directors, or of the outstanding voting stock, of such corporation shall not alter the determination of voting power of stock in such corporation in accordance with the two preceding sentences.

(2) Nonvoting stock as permitted holdings—(i) In general. In addition to those holdings permitted by paragraph (b)(1) of this section, the permitted holdings of a private foundation in an incorporated business enterprise shall include any share of nonvoting stock in such enterprise held by the foundation in any case in which all disqualified persons hold, actually or constructively, no more than 20 percent (35 percent where third persons have effective control as defined in paragraph (b)(3)(ii) of this section) of the voting stock in such enterprise. All equity interests which do not have voting power attributable to them shall, for purposes of section 4943, the classified as nonvoting stock. For this purpose, evidences of indebtedness (including convertible indebtedness), and warrants and other options or rights to acquire stock shall not be considered equity interests.

(ii) Stock with contingent voting rights and convertible nonvoting stock. Stock carrying voting rights which will vest only when conditions, the occurrence of which are indeterminate, have been met, such as preferred stock which gains such voting rights only if no dividends are paid thereon, will be treated as nonvoting stock until the conditions have occurred which cause the voting rights to vest. When such rights vest, the stock will be treated as voting stock that was acquired other than by purchase, but only if the private foundation or disqualified persons had no control over whether the conditions would occur. Similarly, nonvoting stock which may be converted into voting stock will not be treated as voting stock until such conversion occurs. For special rules where stock is acquired other than by purchase, see section 4943(c)(6) and the regulations thereunder.

(iii) Example. The provisions of this paragraph (2) may be illustrated by the following example:

(3) Thirty-five-percent rule where third person has effective control of enterprise—(i) In general. Except as provided in section 4943(c)(4), paragraph (b)(1) of this section shall be applied by substituting 35 percent for 20 percent if:

(A) The private foundation and all disqualified persons together do not hold, actually or constructively, more than 35 percent of the voting stock in the business enterprise, and

(B) The foundation establishes to the satisfaction of the Commissioner that effective control (as defined in paragraph (b)(3)(ii) of this section) of the business enterprise is in one or more persons (other than the foundation itself) who are not disqualified persons.

(ii) “Effective control” defined. For purposes of this subparagraph, the term “effective control” means the possession, directly or indirectly, of the power to direct or cause the direction of the management and policies of a business enterprise, whether through the ownership of voting stock, the use of voting trusts, or contractual arrangements, or otherwise. It is the reality of control which is decisive and not its form or the means by which it is exercisable. Thus, where a minority interest held by individuals who are not disqualified persons has historically elected the majority of a corporation's directors, effective control is in the hands of those individuals.

(4) Two percent de minimis rule—(i) In general. Under section 4943(c)(2)(C), a private foundation is not treated as having excess business holdings in any incorporated business enterprise in which it (together with all other private foundations (including trusts described in section 4947(a)(2)) which are described in section 4946(a)(1)(H)) actually or constructively owns not more than 2 percent of the voting stock and not more than 2 percent in value of all outstanding shares of all classes of stock. If, however, the private foundation, together with all other private foundations which are described in section 4946(a)(1)(H), actually or constructively owns more than 2 percent of either the voting stock or the value of the outstanding shares of all classes of stock in any incorporated business enterprise, all the stock in such business enterprise classified as excess business holding under section 4943 is treated as excess business holdings. For purposes of this paragraph, any stock owned by a private foundation which is treated as held by a disqualified person under section 4943(c)(4)(B), (5), or (6) shall be treated as actually owned by the private foundation. See paragraph (b)(1) of § 53.4941(d)-4 for the determination of excess business holdings without regard to section 4943(c)(2)(C) for purposes of applying section 101(C)(2)(B) of the Tax Reform Act of 1969 (83 Stat. 533).

(ii) Examples. The provisions of this subparagraph may be illustrated by the following examples:

(c) Permitted holdings in an unincorporated business enterprise—(1) In general. The permitted holdings of a private foundation in any business enterprise which is not incorporated shall, subject to the provisions of subparagraphs (2), (3), and (4) of this paragraph, be determined under the principles of paragraph (b) of this section.

(2) Partnership or joint venture. In the case of a partnership (including a limited partnership) or joint venture. the terms “profits interest” and “capital interest” shall be substituted for “voting stock” and “nonvoting stock,” respectively, wherever those terms appear in paragraph (b) of this section. The interest in profits of such foundation (or such disqualified person) shall be determined in the same manner as its distributive share of partnership taxable income. See section 704(b) (relating to the determination of the distributive share by the income or loss ratio) and the regulations thereunder. In the absence of a provision in the partnership agreement, the capital interest of such foundation (or such disqualified person) in a partnership shall be determined on the basis of its interest in the assets of the partnership which would be distributable to such foundation (or such disqualified person) upon its withdrawal from the partnership, or upon liquidation of the partnership, whichever is the greater.

(3) Sole proprietorship. For purposes of section 4943, a private foundation shall have no permitted holdings in a sole proprietorship. In the case of a transfer by a private foundation of a portion of a sole proprietorship, see paragraph (c)(2) of this section (relating to permitted holdings in partnerships). For the treatment of a private foundation's ownership of a sole proprietorship prior to May 26, 1969, see § 53.4943-4.

(4) Trusts and other unincorporated business enterprises—(i) In general. In the case of any unincorporated business enterprise which is not described in paragraph (c) (2) or (3) of this section, the term “beneficial interest” shall be substituted for “voting stock” wherever the term appears in paragraph (b) of this section. Any and all references to nonvoting stock in paragraph (b) of this section shall be inapplicable with respect to any unincorporated business enterprise described in this subparagraph.

(ii) Trusts. For purposes of section 4943, the beneficial interest of a private foundation or any disqualified person in a trust shall be the beneficial remainder interest of such foundation or person determined as provided in paragraph (b) of § 53.4943-8.

(iii) Other unincorporated business enterprises. For purposes of section 4943, the beneficial interest of a private foundation or any disqualified person in an unincorporated business enterprise (other than a trust or an enterprise described in paragraph (c) (2) or (3) of this section) includes any right to receive a portion of distributions of profits of such enterprise, and, if the portion of distributions is not fixed by an agreement among the participants, any right to receive a portion of the assets (if any) upon liquidation of the enterprise, except as a creditor or employee. For purposes of this subparagraph, a right to receive distributions of profits includes a right to receive any amount from such profits (other than as a creditor or employee), whether as a sum certain or as a portion of profits realized by the enterprise. Where there is no agreement fixing the rights of the participants in such enterprise, the interest of such foundation (or such disqualified person) in such enterprise shall be determined by dividing the amount of all equity investments or contributions to the capital of the enterprise made or obligated to be made by such foundation (or such disqualified person) by the amount of all equity investments or contributions to capital made or obligated to be made by all participants in the enterprise.

(d) Examples. The provisions of this section may be illustrated by the following examples:

(a) Introduction—(1) Section 4943 (c)(4) in general. (i) Paragraph (4) of section 4943(c) prescribes transition rules for a private foundation which, but for such paragraph, would have excess business holdings on May 26, 1969. Section 4943(c)(4) provides such a foundation with protection from the initial tax on excess business holdings in two ways. First, the entire interest of such a foundation in any business enterprise in which such a foundation, but for section 4943(c)(4), would have had excess business holdings on May 26, 1969, is treated under section 4943(c)(4)(B) as held by disqualified persons for a certain period of time (the “first phase”). The effect of such treatment is to prevent a private foundation from being subject to the initial tax with respect to its May 26, 1969, interest during the first phase holding period and also to prevent the foundation from purchasing any additional business holdings in such business enterprise during such period (unless the combined holdings of the foundation and all disqualified persons fall below the 20 percent (or 35 percent, if applicable) figure prescribed by section 4943(c)(2)). Second, section 4943(c)(4)(A)(i) initially increases the percentage of permitted holdings of such a foundation to a percentage equal to the difference between:

(A) The percentage of combined holdings of the foundation and all disqualified persons in such business enterprise on May 26, 1969 (subject to a 50 percent maximum), and

(B) The percentage of holdings of all disqualified persons.

(ii) Paragraph (a)(1)(i) of this section may be illustrated by the following example:

(2) Interaction of provisions of section 4943(c) (4), (5), and (6). During the first phase, a private foundation may acquire additional interests in a business enterprise, other than by purchase, which are entitled to be treated as held by disqualified persons for varying holding periods under section 4943(c) (5) or (6) (relating respectively to certain holdings acquired pursuant to the terms of a trust or will in effect on May 26, 1969, and to the 5-year period to dispose of certain gifts, bequests, etc.). In any case holdings which the private foundation disposes of shall be charged first against those holdings which it must dispose of in the shortest period in order to avoid the initial tax thereon. Further, acquisitions of a private foundation under a pre-May 27, 1969, will or trust described in section 4943(3)(5) are treated in a manner similar to the treatment of interests actually held by a private foundation on May 26, 1969. See §§ 53.4943-5 and 53.4943-6.

(b) Present holdings in general. (1) Section 4943(c)(4)(B) provides that any interest in a business enterprise held by a private foundation on May 26, 1969, if the foundation on such date has excess business holdings (determined without regard to section 4943(c)(4)), shall (while held by the foundation) be treated as held by a disqualified person during a first phase. Therefore, no interest of a private foundation shall be treated as held by a disqualified person under section 4943(c)(4)(B) and this section unless:

(i) The private foundation was an entity (not including a revocable trust) in existence on May 26, 1969, even though it was not then treated as a private foundation under section 509 or section 4947;

(ii) Such interest was actually or constructively owned by such entity on such date; and

(iii) Without regard to section 4943(c)(4) such entity had on such date an interest (considered in connection with the interests actually or constructively owned by all disqualified persons with respect to such entity on that date in the same business enterprise, determined as if the entity were then a private foundation) which exceeded the permitted holdings prescribed by section 4943(c) (2) or (3).

(2) The provision of this paragraph may be illustrated by the following example:

(c) First Phase holding periods—(1) In general. If, on May 26, 1969, a private foundation has excess business holdings in any business enterprise (determined with regard to the 20 or 35 percent permitted holdings of section 4943(c)(2)), then all interest which such foundation holds, actually or constructively, in such enterprise on May 26, 1969, shall (while held by such foundation) be deemed held by a disqualified person during the following periods:

(i) The 20-year period beginning on May 26, 1969, if the private foundation holds, actually or constructively, more than 95 percent of the voting stock (or more than a 95 percent profits or beneficial interest in the case of an unincorporated enterprise) in such enterprise on such date;

(ii) Except as provided in paragraph (c)(1)(i) of this section, the 15-year period beginning on May 26, 1969, if the private foundation and all disqualified persons hold, actually or constructively on such date more than 75 percent of the voting stock (or more than a 75 percent profits or beneficial interest in the case of any unincorporated enterprise) or 75 percent of the value of all outstanding shares of all classes of stock in such enterprise (or more than a 75 percent profits and capital interest in the case of a partnership or joint venture); or

(iii) The 10-year period beginning on May 26, 1969, in any case not described in paragraph (c)(1) (i) or (ii) of this section.

(2) Sole proprietorships. The 20-year period described in paragraph (c)(1) of this section shall apply with respect to any interest which a private foundation holds in a sole proprietorship on May 26, 1969. See paragraph (b) of this section for the effect of converting such an enterprise to a corporate, partnership, or other form.

(3) Suspension of first-phase periods. The 20-year, 15-year, or 10-year period described in paragraph (c)(1) of this section shall be suspended during the dependency of any judicial proceeding which is brought and diligently litigated by the private foundation and which is necessary to reform, or to excuse the foundation from compliance with, its governing instrument or any other instrument (as in effect on May 26, 1969) in order to allow disposition of any excess business holdings held by the foundation on May 26, 1969.

(4) Election to shorten the period during which certain holdings of private foundations are treated as held by disqualified persons. If, on May 26, 1969, the combined holdings of a private foundation and all disqualified persons in any one business enterprise are such as to make applicable the 15-year period referred to in paragraph (c)(1)(ii) of this section, and if, on such date, the foundation's holdings do not exceed 95 percent of the voting stock in such enterprise, then such 15-year period is shortened to the 10-year period referred to in paragraph (c)(1)(iii), if at any time before January 1, 1971, one or more individuals:

(i) Who are substantial contributors (as described in section 507(d)(2)), or members of the family within the meaning of section 4946(d) of one or more substantial contributors, to such private foundation, and

(ii) Who on May 26, 1969, held in the aggregate more than 15 percent of the voting stock in the enterprise, made an election in the manner described in 26 CFR 143.6 (rev. as of Apr. 1, 1974).

(5) Examples. The provisions of this paragraph (c) may be illustrated by the following examples:

(d) Permitted holdings under section 4943(c)(4)—(1) In general. The permitted holdings of a private foundation to which section 4943 (c)(4) applies in a business enterprise shall be as follows:

(i) The excess of the substituted combined voting level over the disqualified person voting level, and separately,

(ii) The excess of the substituted combined value level over the disqualified person value level.

(2) Definitions. For purposes of paragraph (d) of this section:

(i) The term disqualified person voting level on any given date means the percentage of voting stock held by all disqualified persons together on such date (including stock deemed held by such a person by reason of section 4943(c)(4), (5), or (6)).

(ii) The term disqualified person value level on any given date means the percentage of the total value of all outstanding shares of all classes of stock in a business enterprise held by all disqualified persons together on such date (including stock deemed held by such a person by reason of section 4943(c)(4), (5), or (6)).

(iii) The term foundation voting level prior to the second phase is equal to zero. After the first phase, such term on any given date means the lowest percentage of voting stock held by a private foundation (without regard to section 4943(c)(4)(B)) in a business enterprise on May 26, 1969, and at all times thereafter up to such date. See section 4943(c)(5) and § 53.4943-5 for the effect of the interests acquired pursuant to the terms of certain wills or trusts in effect on May 26, 1969.

(iv) The term foundation value level prior to the second phase is equal to zero. After the first phase, such term on any given date means the lowest percentage of the total value of all outstanding shares of all classes of stock held by a private foundation (without regard to section 4943(c)(4)(B)) in a business enterprise on May 26, 1969, and at all times thereafter up to such date. See section 4943(c)(5) and § 53.4943-5 for the effect of interests acquired pursuant to the terms of certain wills or trusts in effect on May 26, 1969.

(v) The term substituted combined voting level means the lowest percentage to which the sum of the foundation voting level plus the disqualified person voting level has been reduced since May 26, 1969, by paragraph (d)(4) of this section to the following modifications (the “downward ratchet rule”), subject;

(A) In no event shall such substituted level exceed 50 percent; and

(B) Such substituted level shall be increased (but not above 50 percent) in accordance with section 4943(c)(5) and § 53.4943-5 for certain interests acquired by such foundation pursuant to the terms of a will or trust in effect on May 26, 1969.

(vi) The term substituted combined value level means the lowest percentage to which the sum of the foundation value level plus the disqualified person value level has been reduced since May 26, 1969, by paragraph (d)(4) of this section (the “downward ratchet rule”), subject to the following modifications:

(A) In no event shall such substituted level exceed 50 percent; and

(B) Such substituted level shall be increased (but not above 50 percent) in accordance with section 4943(c)(5) and § 53.4943-5 for certain interests acquired by such foundation pursuant to the terms of a will or trust in effect on May 26, 1969.

(vii) In the case of an interest in a partnership or joint venture, definitions (i) through (iv) of this subparagraph shall be applied by substituting “profit interests” for “voting stock” and “all partnership interests” for “all outstanding shares of all classes of stock.”

(viii) In the case of an interest in a business enterprise other than a corporation, partnership or joint venture, definitions (i) through (iv) of this subparagraph shall be applied by substituting “beneficial remainder interests” for “voting stock” and “all beneficial remainder interests” and “all outstanding shares of all classes of stock.”

(ix) Each level defined in paragraph (d)(2)(iii), (iv) and (v) and (vi) as of any date shall be carried over to the subsequent date subject to any adjustments prescribed for such level.

(3) Permitted holdings—First phase. Since during the first phase the substituted combined voting level generally does not exceed the disqualified person voting level, and the substituted combined value level generally does not exceed the disqualified person value level, the permitted holdings during the first phase are generally equal to zero. The permitted holdings during the first phase exceed zero only where the 20 percent (or 35 percent) limitation on the downward ratchet rule contained in paragraph (d)(4)(ii)(B) of this section applies.

(4) Downward ratchet rule—(i) In general. Except as provided in paragraph (d)(4)(ii) of this section and section 4943(c)(5):

(A) Scope of rule. In general, when the percentage of the holdings in a business enterprise held by a private foundation and all disqualified persons together to which section 4943(c)(4) applies decreases, or when the percentage of the holdings of the private foundation alone in such business enterprise decreases, such holdings may not be increased (except as provided under section 4943(c) (5) or (6)). This so-called “downward ratchet rule” is designed to prevent the private foundation from purchasing additional holdings in the business enterprise until the substituted combined voting level reduced to the 20-percent (or 35 percent) figure prescribed by section 4943(c)(2).

(B) Levels affected. Under the downward ratchet rule any decrease after May 26, 1969, in the percentage of holdings comprising either the substituted combined voting level, the substituted combined value level, the foundation voting level or the foundation value level shall cause the respective level to be decreased to such decreased percentage for purposes of determining the foundation's permitted holdings.

(C) Implementation of reductions. Thus, if at any time the sum of the foundation voting level and the disqualified person voting level is less than the immediately preceding substituted combined voting level, the substituted level shall be decreased so that it equals such sum. For example, if on May 26, 1969, a foundation and all disqualified persons together have holdings in a business enterprise equal to 50 percent, on such date the substituted combined voting level and the disqualified person voting level equal 50 percent (since such holdings of the foundation are treated as held by a disqualified person). If the private foundation or a disqualified person on May 27, 1969, sold 2 percent of such holdings to a nondisqualified person, the disqualified person voting level would be decreased to 48 percent (50%−2%), causing the substituted combined voting level to be decreased to 48 percent. As a further example, assume that on May 26, 1969, a foundation and all disqualified persons together have holdings in a business enterprise equal to 50 percent, and when the first phase expires on May 26, 1979, the substituted combined voting level is still 50 percent, the foundation voting level is 10 percent, and the disqualified person voting level is 40 percent. If a disqualified person there- after sells 2 percent to a nondisqualified person so that the sum of the disqualified person voting level (40% − 2% = 38%) and the foundation voting level (10%) equals 48 percent (38% + 10%), then the substituted combined voting level is decreased to 48 percent. Similarly, if at any time the sum of the foundation value level and the disqualified person value level is less than the immediately preceding substituted combined value level, the substituted combined value level shall be decreased so that it equals such sum.

(D) Restrictions on increases in levels. In addition, none of the four levels referred to in paragraph (d)(4)(i)(B) of this section may be adjusted upward to reflect any increase in the holdings comprising such level, except as provided in section 4943(c)(5) and § 53.4943-5. As a result, any transfer of May 26, 1969, holdings from a disqualified person to a private foundation shall not increase the foundation voting level or the foundation value level (unless the transfer qualifies under section 4943(c)(5)), and thus may reduce the substituted combined value level (and where appropriate, the substituted combined voting level). Thus, in the last preceding example, if the disqualified person, instead of selling the 2 percent interest to a nondisqualified person, had sold such interest to the foundation, the substituted combined voting level would still be reduced to 48 percent, since the disqualified person voting level would be reduced by 2 percent (to 38%) but the foundation voting level would not be increased by 2 percent (remaining at 10%). However, any transfer of May 26, 1969, holdings from a private foundation to a disqualified person under section 101(1)(2)(B) of the Tax Reform Act of 1969, shall reduce the foundation value level (and, where appropriate, the foundation voting level), but will not reduce the substituted combined value level or the substituted combined voting level. The disqualified person voting level and disqualified person value level are correspondingly increased, not being limited to interest held since May 26, 1969. In addition, a transfer of May 26, 1969, holdings from one disqualified person to another, for example, by bequest, shall not reduce the substituted combined voting level nor the substituted combined value level.

(ii) Exceptions—(A) One percent de minimis rule. If after May 26, 1969, there are one or more decreases in the holdings comprising any of the four levels referred to in paragraph (d)(4)(i)(B) of this section during any taxable year of a private foundation, and if such decreases are attributable to issuances of stock (or such issuances coupled with redemptions), then, unless the aggregate of such decreases equals or exceeds 1 percent, the determination of whether there is a decrease in such level for purposes of this paragraph (d)(4) shall be made only at the close of such taxable year. If, however, the aggregate of such decreases equals or exceeds 1 percent, such level shall be decreased at that time as if the previous sentence has never applied.

(B) Twenty percent (or 35 percent) floor. In no event shall the downward rachet rule contained in paragraph (d)(4)(i) of this section decrease the substituted combined voting level or the substituted combined value level below 20 percent, or, for purposes of section 4943(c)(2)(B), below 35 percent.

(iii) Special rules—(A) Change of foundation managers. In the case of a foundation manager (as defined in section 4946(b)) who on May 26, 1969, owns holdings in a business enterprise and who is replaced by another foundation manager, the decrease in the substituted combined voting or value levels shall be limited to the excess, if any, of the departing foundation manager's holdings over his successor's holdings.

(B) Termination of private foundation status under section 507. If an organization gives the notification described in section 507(b)(1)(B)(ii) of the commencement of a 60-month termination period and fails to meet the requirements of section 509(a)(1), (2) or (3) for the entire period, then such organization will be treated as a private foundation during the entire 60-month period for purposes of this paragraph (d)(4) and section 4946(a)(1)(H). For example, X, a private foundation gives notification of the commencement of a 60-month termination commencing on January 1, 1972. X and Y, another private foundation, are effectively controlled by the same persons within the meaning of section 4946(a)(1)(H). X and Y hold 25 percent each of the voting stock of Z corporation on May 26, 1969, so that the substituted combined voting level for X or Y is 50 percent on such date. If X meets the requirements of section 509(a) (1), (2), or (3) for the entire 60-month period, section 4946(a)(1)(H) is inapplicable to X, and, under the downward ratchet rule, the substituted combined voting level for Y is decreased by 25 percent. On the other hand, if X meets the requirements of section 509(a)(2) for its taxable years 1972 and 1973, but fails to meet the requirements of section 509(a)(1), (2), or (3) in 1974, 1975, and 1976, then solely for purposes of section 4943(c)(4)(A)(ii) and this paragraph (d)(4), X will be treated as a disqualified person with respect to Y, and Y will be treated as a disqualified person with respect to X, for taxable years 1972 through 1976 pursuant to section 4946(a)(1)(H). Thus, for purposes of section 4943(c)(4)(A)(ii) the substituted combined voting level for X or Y will not be decreased by reason of the fact that X was attempting to terminate under section 507(b)(1)(B), and assuming no other transportations, such level; will remain at 50 percent.

(iv) Examples. The provisions of this paragraph (d)(4) may be illustrated by the following examples:

(5) Permitted holdings—Second phase—(i) In general. For purposes of section 4943 and this section, the term “second phase” means the 15-year period immediately following the first phase. Upon the expiration of the first phase with respect to an interest to which section 4943(c)(4) applies, such interest shall no longer be treated as held by a disqualified person under section 4943(c)(4)(B). During the second phase, the manner of determining the permitted holdings of a private foundation to which section 4943(c)(4) applies shall be the same as applicable to the first phase, except that a 25 percent maximum shall apply under certain conditions specified in paragraph (d)(5)(ii) of this section. For these purposes the substituted combined voting level and the substituted combined value level in effect for the foundation at the end of the first phase shall be carried over to the second phase. The substituted levels are carried over because although there is a decrease in the disqualified person levels (since holdings are no longer treated as held by disqualified persons under section 4943(c)(4)(B)), a corresponding increase in the foundation levels occurs. For example, if a private foundation on May 26, 1969, held 10 percent of the voting stock in a corporation and disqualified persons held 40 percent of the voting stock, both the disqualified person voting level and the substituted combined voting level equal 50 percent (10% + 40%). Assuming no transactions during the first phase, on May 26, 1979, the disqualified person voting level would be decreased to 40 percent (50%−10%), but the foundation voting level would be increased to 10 percent so that the substituted combined voting level would remain at 50 percent. In addition, the downward ratchet rule of paragraph (d)(4) of this section shall continue to apply, to prevent the foundation and disqualified persons from purchasing any additional interest in the same enterprise until the substituted combined voting level decreases below 20 percent.

(ii) 25 percent maximum on foundation holdings. If, or as soon as, the disqualified person voting level exceeds 2 percent after the expiration of the first phase, the permitted holdings shall not thereafter exceed 25 percent of the voting stock or 25 percent of the value of all outstanding shares of all classes of stock, even though the holdings of the foundation and all disqualified persons combined do not exceed the substituted level. Solely for purposes of determining whether the 25 percent limitation of this subdivision (ii) applies, the disqualified person voting level shall not be treated as exceeding 2 percent solely as a result of the holdings of a private foundation which are treated as held by a disqualified person by reason of section 4943(c) (5) or (6). For example, where under the constructive ownership rules for trusts in § 53.4943-8(b), a private foundation is deemed to own more than 2 percent of the voting stock of a business enterprise but such stock is treated as held by a disqualified person under section 4943(c)(5), the determination of the substituted percentage for permitted holdings in the second phase will be as if the foundation owned the stock held by the trust. Similarly, where a private foundation is the only remainder beneficiary of a trust that is a disqualified person under section 4946(a)(1)(H), the disqualified person voting level shall not be treated as exceeding 2 percent solely as a result of the holdings of such a trust.

(6) Permitted holdings—Third phase. For purposes of section 4943 and this section, the term “third phase” means the entire period following the second phase. During the third phase the manner of determining the permitted holdings of a private foundation to which section 4943(c)(4) applies shall be the same as applicable to the second phase under paragraph (d)(5) of this section (including the carryover of levels from the earlier phase). However, if the 25 percent limit of paragraph (d)(5)(ii) of this section never applied during the second phase, the substituted combined voting level and the substituted combined value level each shall not exceed 35 percent during the third phase.

(7) Examples. The provisions of this paragraph may be illustrated by the following examples:

(8) Special rule where all holdings are permitted under section 4943(c)(2). (i) Since section 4943(c)(4) and this paragraph provide transitional rules for foundations which would otherwise have had excess business holdings on May 26, 1969, no holdings shall cease to be permitted holdings under this paragraph where such holdings would be permitted holdings under section 4943(c)(2) and § 53.4943-3. Thus, for example, where the substituted combined voting level had been reduced to 20 percent, the provisions of § 53.4943-3(b)(2) concerning nonvoting stock as permitted holdings generally apply.

(ii) The provisions of this paragraph (d)(8) may be illustrated by the following example:

(9) Special rule for certain private foundations. In the case of a private foundation:

(i) Which was incorporated before January 1, 1951.

(ii) Substantially all of the assets of which on May 26, 1969, consisted of more than 90 percent of the stock of an incorporated business enterprise which is licensed and regulated, the sales or contracts of which are regulated, and the professional representatives of which are licensed, by State regulatory agencies in at least 10 States;

(iii) Which acquired such stock solely by gift, devise, or bequest;

(iv) Which does not purchase any stock or other interest in such enterprise after May 26, 1969, and does not acquire any stock or other interest in any other business enterprise which constitutes excess business holdings under § 53.4943-3; and

(v) Which, in the last 5 taxable years ending on or before December 31, 1970, expended substantially all of its adjusted net income (as defined in section 4942(f)) for the purpose or function for which it is organized and operated;

(10) Special rule for changes in the relative values of stock of different classes. (i) In the case of a corporation that has more than one class of stock outstanding, if the percentage of value held by the private foundation, its disqualified persons, or both, increases over a period of time solely as a result of changes in the relative values of the stock of different classes, then the foundation value level, the disqualified person value level, and the substituted combined value level, as defined in paragraph (d)(2) of this section, shall be adjusted to reflect such increase. An increase in the percentage of value held shall not be considered to have occurred solely as a result of changes in the relative values of the stock of different classes if:

(A) There has been any increase during the period in the percentage of any class of stock held by the private foundation, its disqualified persons, or both, or

(B) There has been any issuance, redemption, or purchase by the issuing corporation of any stock during the period.

(ii) Example. The provisions of this paragraph (b)(10) may be illustrated by the following example:

(a) Interests to which section 4943(c)(5) applies—(1) In general. Section 4943(c)(5) provides that section 4943(c)(4) (other than the 20-year first phase holding period) applies to an interest in a business enterprise acquired after May 26, 1969 by a private foundation under the terms of a trust which was irrevocable on May 26, 1969, or under the terms of a will executed on or before May 26, 1969, which were in effect on May 26, 1969, and at all times thereafter, as if such interest were held on May 26, 1969. However the first phase holding period prescribed by § 53.4943-4(c)(1) (ii) or (iii) shall commence for such an interest on the date of distribution to the foundation. Unlike section 4943(c)(4) and § 53.4943-4, section 4943(c)(5) and this section treat only the interest so acquired (and not the entire interest held by the foundation in such enterprise on the date of distribution) as held by a disqualified person during a first phase holding period. (See, however, section 4943(c)(6) and paragraph (b)(2) of § 53.4943-6 for the treatment of other holdings of the foundation in the same enterprise if an interest to which section 4943(c)(5) applies is acquired from a person who was not a disqualified person prior to the acquisition.) In addition, section 4943(c)(5) and this section shall not apply if after the acquisition of such an interest the foundation would not have excess business holdings (determined without regard to section 4943(c) (4), (5), or (6)).

(2) After-acquired interests. Section 4943(c)(5) and this section shall not apply to any interest acquired after May 26, 1969, by an estate or trust, other than by reason of the death of the decedent. For example, where a foundation is a residuary beneficiary under the terms of a will executed before May 26, 1969, and the residue of the estate consists of cash, then stock subsequently purchased with cash for distribution to the foundation will not be treated as an interest acquired under the terms of a will executed on or before May 26, 1969.

(3) Certain revocable trusts. If an interest in a business enterprise actually passes to a private foundation under a trust which would have met the tests referred to in paragraph (a)(1) of this section but for the fact that the trust was revocable (even though it was not in fact revoked) and such interest would have passed to such foundation under a will that meets those tests but for the fact that the grantor died without having revoked the trust, then for purposes of section 4943(c)(5) and this section, such an interest shall be treated as having been acquired by the foundation under the will.

(4) Modification of will—(i) In general. For purposes of section 4943(c)(5) and this section, an amendment or republication of a will which was executed on or before May 26, 1969, does not prevent any interest in a business enterprise which was to pass under the terms (which were in effect on May 26, 1969, and at all times there- after) of such will from being treated as a present holding under section 4943(c) (4) or (5):

(A) Solely because there is a reduction in the interest in the business enterprise which the foundation was to receive under the terms of the will (for example, if the foundation is to receive the residuary estate, and if one class of stock is disposed of by the decedent during his lifetime or by a subsequent codicil);

(B) Solely because such amendment or republication is necessary in order to comply with section 508(e) and the regulations thereunder;

(C) Solely because there is a change in the executor of the will; or

(D) Solely because of any other change which does not otherwise change the rights of the foundation with respect to such interest in the business enterprise.

(ii) Examples. The provisions of this paragraph (a)(4) may be illustrated by the following examples:

(b) Holding periods—(1) In general. An interest to which section 4943(c)(5) applies shall be entitled to a 15-year holding period starting on the date of distribution only if the interests actually or constructively owned by a private foundation and all disqualified persons on May 26, 1969, in a business enterprise exceed 75 percent of the voting stock (or of the profits or beneficial interest) or 75 percent of the value of all outstanding shares of all classes of stock (or of the profits and capital interest) in such enterprise. For purposes of the preceding sentence, interests held by the foundation on May 26, 1969, shall be deemed to include an interest to which section 4943(c)(5) applies and which has been acquired (on or before the date of distribution for the interest in question) from a person who was not a disqualified person on May 26, 1969. Therefore, if under the terms of a will in effect on May 26, 1969, and at all times thereafter, a private foundation is created on July 1, 1975, and receives 76 percent of the voting stock of a business enterprise on that date, such stock shall be treated as held by a disqualified person until June 30, 1990. Any interest to which section 4943(c)(5) applies but which is not entitled to a 15-year holding period shall be entitled to a 10-year holding period starting on the date of distribution. For purposes of this paragraph the date of distribution shall be deemed to occur no later than the date on which the trust or estate is considered to be terminated under § 1.641(b)-(3) of this chapter (Income Tax Regulations).

(2) Constructive ownership prior to date of distribution. To the extent that an interest to which section 4943(c)(5) applies is constructively held by a private foundation under section 4943(d)(1) and § 53.4943-8 prior to the date of distribution, it shall be treated as held by a disqualified person prior to such date by reason of section 4943(c)(5). In addition, in the case of a foundation's interest in a trust which was irrevocable on May 26, 1969, and to which both sections 4943 (c)(4) and (c)(5) apply, the first phase holding period for such interest shall end with whichever such period under section 4943(c) (4) or (5) ends later. For example, if under the terms of such a trust, 96 percent of the voting stock in a business enterprise was constructively held by a private foundation on May 26, 1969, and was distributed to such foundation on June 30, 1970, such interest is entitled to a 20-year holding period beginning on May 26, 1969.

(c) Permitted holdings—(1) In general. The permitted holdings of a private foundation which has an interest in a business enterprise to which section 4943(c)(5) applies shall be determined in accordance with the rules of paragraph (d) of § 53.4943-4. The levels referred to in such paragraph shall be adjusted to take into account the acquisition of such an interest as if it were treated as held by a disqualified person from May 26, 1969, until the date of acquisition. See also § 53.4943-6(b)(2) for the special rule for interests held by a private foundation at the time it acquires a section 4943(c)(5) interest from a nondisqualified person. Thus, for example, if on June 30, 1975, the disqualified person voting level and the substituted combined voting level in corporation X with respect to foundation F are 45 percent, and a nondisqualified person's 10 percent voting interest in X is acquired by F on July 1, 1975, in a transaction to which section 4943(c)(5) applies, the above-mentioned levels shall be increased to 55 and 50 percent respectively, on July 1, 1975. However, if such interest had been acquired from a person who was a disqualified person on May 26, 1969, rather than from a nondisqualified person, no adjustments in such levels would have taken place on July 1, 1975. In such a case, though, at the beginning of the second phase on July 1, 1985, the foundation voting level would be increased by 10 percent, and the disqualified person voting level decreased by 10 percent (assuming that none of the acquired stock had been disposed of prior to such date).

(2) Separate phases. The phases for each interest to which section 4943(c)(5) applies start independently from those for any other interest of the foundation in the same enterprise to which section 4943(c) (4) or (5) applies. Therefore, until an interest enters its own second phase, the 25 percent limit described in paragraph (d)(5) of § 53.4943-4 shall not apply to such interest since such interest (and any subsequently acquired section 4943(c)(5) interest in the first phase) is still treated as held by a disqualified person for purposes of that 25 percent limit. In addition, if such an interest enters its second phase and at such time all disqualified persons together do not have holdings in excess of 2 percent of the voting stock in the same business enterprise, then the 25 percent limit of section 4943(c)(4)(D)(i) shall not then apply to such interest, even though such limit may have been applicable to an interest with an earlier second phase. Moreover, the 35 percent limit of section 4943(c)(4)(D)(ii) shall cause only interests which have entered the third phase to become excess business holdings, taking into account, however, interests in prior phases in determining the holdings subject to such limit.

(3) Examples. The provisions of this paragraph may be illustrated by the following examples: (After each example is a chart setting forth the chronological changes in the various levels referred to in paragraph (d) of § 53.4943-4.)

(a) In general—(1) Application. (i) Paragraph (6) of section 4943(c) prescribes transition rules for a private foundation, which, but for such paragraph, would have excess business holdings as a result of a change in the holdings in a business enterprise after May 26, 1969 (other than by purchase by such private foundation or by a disqualified person) to the extent that section 4943(c)(5) (relating to certain holdings acquired under a pre-May 27, 1969, will on trust) does not apply.

(ii) Subparagraph (A) of section 4943(c)(6) applies where, immediately prior to a change in holdings described in paragraph (a)(1)(i) of this section, the foundation has no excess business holdings in such enterprise (determined without regard to section 4943(c) (4), (5), or (6)). In such a case, the entire interest of the foundation in such enterprise (immediately after such change) shall (while held by the foundation) be treated as held by a disqualified person (rather than by the foundation) during the five-year period beginning on the date of such change.

(iii) Subparagraph (B) of section 4943(c)(6) applies where the foundation has excess business holdings in such enterprise (determined without regard to section 4943(c) (4), (5), or (6)) immediately prior to a change in holdings described in paragraph (a)(1)(i) of this section. In such a case, the interest of the foundation in such enterprise (immediately after such change) shall (while held by the foundation) be treated as held by a disqualified person (rather than the foundation) during the five-year period beginning on the date of such change, except that if and as soon as any holdings in such enterprise become excess business holdings during such period (determined without regard to such change (and the resulting application of section 4943(c)(6) to the foundation's interest in such enterprise)), such holdings shall no longer be treated as held by a disqualified person under this section, but shall constitute excess business holdings subject to the initial tax. In applying the preceding sentence, if holdings of the foundation which (but for such change in holdings (and the resulting application of section 4943(c)(6) to the foundation's interest in such enterprise)) would be subject to the 25 percent limit prescribed by section 4943(c)(4)(D) after the expiration of the first phase, such holdings shall be treated as subject to such percentage limitation for purposes of determining excess business holdings. For example, if a private foundation in 1978 has present holdings of 28 percent in a business enterprise to which section 4943(c)(4) applies, and such holdings would exceed the 25 percent limit of section 4943(c)(4)(D)(i) on May 26, 1979, a gift of 5 percent to the foundation in 1978 of an interest in such enterprise shall not prevent the 3 percent (28%−25%) excess over the 25 percent limit from constituting excess business holdings on May 26, 1979, if on such date disqualified persons hold more than a 2 percent interest in such enterprise (and no other transaction has taken place).

(2) Acquisitions that are not purchases. Section 4943(c)(6) does not apply if a change in holdings in a business enterprise is the result of a purchase by the private foundation or a disqualified person. For purposes of subparagraph (a) of this paragraph, the term “purchase” shall not include any acquisition by gift, devise, bequest, legacy, or interstate succession. Paragraph (d) of this section provides rules for the treatment of increases in holdings received in a readjustment (as defined in § 53.4943-7(d)(1)).

(3) Examples. The provisions of paragraph (a) of this section may be illustrated by the following examples:

(b) Special rules for acquisitions by will or trust—(1) In general. In the case of an acquisition of holdings in a business enterprise by a private foundation pursuant to the terms of a will or trust, the five-year period described in section 4943(c)(6) and in this section shall not commence until the date on which the distribution of such holdings from the estate or trust to the foundation occurs. See § 53.4943-5(b)(1) for rules relating to the determination of the date of distribution under the terms of a will or trust. For purposes of this subparagraph, holdings in a business enterprise will not be treated as acquired by a private foundation pursuant to the terms of a will where the holdings in the business enterprise were not held by the decedent. Thus, in the case of after-acquired property, this subparagraph shall not apply, the five-year period described in section 4943(c)(6) and this section shall commence on the date of acquisition of such holdings by the estate, and such five-year period may expire prior to the date of distribution of such holdings from the estate. To the extent that an interest to which section 4943(c)(6) and this paragraph (b)(1) apply is constructively held by a private foundation under section 4943(d)(1) and § 53.4943-8 prior to the date of distribution, it shall be treated as held by a disqualified person prior to such date by reason of section 4943(c)(6). See § 53.4943-8 for rules relating to constructive holdings held in an estate or trust for the benefit of the foundation.

(2) Special rule for section 4943(c)(5) interests acquired from a nondisqualified person. (i) In the case of holdings of a private foundation in a business enterprise to which section 4943(c)(5) (relating to certain holdings acquired under a pre-May 27, 1969, will or trust) applies which are acquired from a nondisqualified person, the interest of the foundation in such enterprise (immediately after such acquisition) shall (while held by the foundation) be treated as held by a disqualified person (rather than the foundation) under section 4943(c)(6)(B) and paragraph (a)(1)(iii) of this section from the date of acquisition until the end of the fifth year following the date of distribution of such holdings. Thereafter, only the holdings to which section 4943(c)(5) and § 53.4943-5(a)(1) apply shall continue to be treated as held by a disqualified person until the end of the first phase with respect thereto.

(ii) The provisions of paragraph (b)(2)(i) of this section may be illustrated by the following examples:

(c) Exceptions. (1) Section 4943(c)(6) and this section shall not apply to any transfer of holdings in a business enterprise by one private foundation to another private foundation which is related to the first foundation within the meaning of section 4946(a)(1)(H).

(2) Section 4943(c)(6) and this section shall not apply to an increase in the holdings of a private foundation in a business enterprise that is part of a plan whereby disqualified persons will purchase additional holdings in the same enterprise during the five-year period beginning on the date of such change, e.g., to maintain control of such enterprise, since such increase shall be treated as caused in part by the purchase of such additional holdings.

(3) The purchase of holdings by an entity whose holdings are treated as constructively owned by a foundation, its disqualified persons, or both, under section 4943(d)(1) shall be treated as a purchase by a disqualified person if the foundation, its disqualified persons or both have effective control of the entity or otherwise can control the purchase. For example, if a foundation is the beneficiary of a specific bequest of $20,000 and its consent is required for the estate to make a purchase using such cash, then a purchase by the estate using such cash would be treated as a purchase by a disqualified person. Similarly, if an executor of an estate is a disqualified person with respect to a private foundation, any purchase by the estate would be treated as a purchase by a disqualified person.

(4) If a private foundation, its disqualified persons, or both, hold an interest in specific property under the terms of a will or trust, and if the private foundation, its disqualified persons, or both, consent or otherwise agree to the substitution of holdings in a business enterprise for such specific property, such holdings shall be treated as acquired by purchase by a disqualified person. For example, if a private foundation is the beneficiary of a specific bequest of $20,000 and the private foundation agrees to accept certain of the estate's holdings in a business enterprise in satisfaction of such specific bequest, such holdings will be treated as acquired by purchase by a disqualified person even if such holdings were held by the decedent.

(d) Readjustments and distributions—(1) General rule. Except as otherwise provided in subparagraph (2) of this paragraph, any increase in holdings in a business enterprise that is the result of a readjustment (as defined in § 53.4943-7(d)(1)) shall be treated as acquired other than by purchase. However, holdings that are attributable to holdings owned by the private foundation that would have been excess business holdings except for the fact that such holdings were treated as held by a disqualified person prior to the readjustment shall in no event be treated as held by a disqualified person after the date on which the holdings to which the change is attributable would have ceased to be treated as held by a disqualified person.

(2) Exceptions. Any increase in holdings in a business enterprise that is the result of a readjustment (as defined in § 53.4943-7(d)(1)), including any change resulting from application of the rule in § 53.4943-8(c)(3), shall be treated as occurring by purchase by a disqualified person:

(i) To the extent the increase is attributable to holdings that were excess business holdings prior to the readjustment, and separately

(ii) To the full extent of the increase if the readjustment includes a prohibited transaction, unless the foundation establishes to the satisfaction of the Commissioner that effective control of all parties to the transaction was, at the time of the transaction, in one or more persons (other than the foundation) who are not disqualified persons with respect to the foundation. See § 53.4943-7(d)(2) for the definition of prohibited transaction.

(3) Section 4943(c)(6) holdings. If, immediately prior to a readjustment (as defined in § 53.4943-7(d)(1)), a private foundation has holdings in a business enterprise that are treated under section 4943(c)(6) as held by a disqualified person, then any holdings in a business enterprise that are received in the readjustment in exchange for such section 4943(c)(6) holdings shall be treated as the holdings surrendered in the exchange to the same extent as provided in § 53.4943-7 with respect to exchanges involving holdings to which section 4943(c) (4) or (5) applies. Rules similar to those in § 53.4943-7(a)(2) shall be applied to determine when holdings are treated as surrendered or received in a readjustment for purposes of this paragraph.

(4) Redemption by a corporation that is a disqualified person. If a foundation holds an interest in a corporation that is a disqualified person, an increase in the holdings of the private foundation, its disqualified person, or both, as a result of a redemption or a purchase of stock of the disqualified person corporation by such corporation shall not be treated as acquired by purchase by a disqualified person based solely on the status of the corporation as a disqualified person.

(5) One percent rule for redemptions. If the holdings of a foundation, its disqualified persons, or both, in a business enterprise are increased as a result of one or more redemptions during any taxable year then, unless the aggregate of such increases equals or exceeds one percent of the outstanding voting stock or one percent of the value of all outstanding shares of all classes of stock, the determination of whether such increases cause the foundation to have excess business holdings shall be made only at the close of the private foundation's taxable year. The five-year period described in section 4943(c)(6) or the 90-day period described in § 53.4943-2(a)(1)(ii), whichever is applicable, shall begin on the last day of such taxable year. If, however, the aggregate of such increases equals or exceeds one percent of the outstanding voting stock or one percent of the value of all outstanding shares of all classes of stock, the determination of whether such increases cause the foundation to have excess business holdings shall be made, and the applicable five-year or 90-day period shall begin, as of the date the increases, in the aggregate, equal or exceed one percent.

(6) Examples. The provisions of this paragraph are illustrated in § 53.4943-7(f) and by the following examples:

(e) Constructive holdings. Any change in holdings in a business enterprise that occurs because a corporation ceases to be actively engaged in a trade or business, thus causing its holdings to be constructively owned by its shareholders, shall be treated as acquired other than by purchase.

(f) Certain transactions treated as purchases; cross references. For the application of section 4943(c)(6) to holdings that were not an interest in a business enterprise when acquired but that subsequently become holdings in a business enterprise, see § 53.4943-10(d)(2).

(a) General rules—(1) Readjustments. Except to the extent provided in paragraph (b) of this section, if a private foundation, its disqualified persons, or both together have holdings in a corporation to which section 4943(c) (4) or (5) applies, stock of a corporation received by the foundation, its disqualified persons, or both together in a readjustment (as defined in paragraph (d)(1) of this section) in exchange for such holdings to which section 4943 (c) (4) or (5) applies shall be treated, for purposes of section 4943 (c) (4) or (5), as the stock surrendered in the exchange.

(2) No exchange necessary. Paragraph (a)(1) of this section shall apply to all readjustments even if no exchange occurs. For purposes of this section, all stock held (directly or indirectly) before a readjustment in any corporation involved in the readjustment shall be treated as stock surrendered in the readjustment and all stock held (directly or indirectly) after the readjustment in any corporation involved in the readjustment shall be treated as stock received in the readjustment in exchange for the stock treated as surrendered.

(b) Exceptions and limitations—(1) Limitation on increases in percentage of voting stock. (i) If the percentage of voting stock in a business enterprise owned (directly or indirectly) by a private foundation by reason of its ownership of stock received in an exchange described in paragraph (a) of this section exceeds the greatest percentage of voting stock in any business enterprise owned (directly or indirectly) by the private foundation prior to such exchange by reason of its ownership of the stock surrendered by it in the exchange, then:

(A) That portion of the stock received by the private foundation in the exchange which represents such excess is to be treated as an increase in the holdings of the private foundation in accordance with § 53.4943-6 (d), and

(B) Only the remaining portion of the stock received by the private foundation in the exchange shall be treated as the stock surrendered by the private foundation in the exchange.

(ii) If the sum of the percentage of voting stock in a business enterprise owned (directly or indirectly) by disqualified persons by reason of their ownership of stock received in an exchange described in paragraph (a) of this section plus the percentage of voting stock in the business enterprise owned (directly or indirectly) by the private foundation by reason of its ownership of stock received in the exchange and treated as the stock surrendered under paragraph (b) (1) (i) of this section exceeds the greatest percentage of voting stock in any business enterprise owned (directly or indirectly) by the private foundation and its disqualified person in combination by reason of their ownership of the stock surrendered by them in the exchange, then:

(A) That portion of the stock received by the disqualified persons in the exchange which represents such excess is to be treated as an increase in the holdings of the disqualified persons in accordance with § 53.4943-6(d), and

(B) Only the remaining portion of the stock received by the disqualified persons in the exchange is to be treated as the stock surrendered by the disqualified persons in the exchange.

(2) Limitation on increase in percentage of value. (i) If the percentage of value of all outstanding shares of all classes of stock in a business enterprise owned (directly or indirectly) by a private foundation by reason of its ownership of stock received in an exchange described in paragraph (a) of this section exceeds the greatest percentage of such value in any business enterprise owned (directly or indirectly) by the private foundation prior to such exchange by reason of its ownership of the stock surrendered by it in the exchange, then:

(A) That portion of the stock received by the private foundation in the exchange which represents such excess is to be treated as an increase in the holdings of the private foundation in accordance with § 53.4943-6(d), and

(B) Only the remaining portion of the stock received by the private foundation in the exchange shall be treated as the stock surrendered by the private foundation in the exchange.

(ii) If the sum of the percentage of value of all outstanding shares of all classes of stock in a business enterprise owned (directly or indirectly) by disqualified persons by reason of their ownership of stock received in an exchange described in paragraph (a) of this section plus the percentage of such value in the business enterprise owned (directly or indirectly) by the private foundation by reason of its ownership of stock received in the exchange and treated as the stock surrendered under paragraph (b)(2)(i) of this section exceeds the greatest percentage of such value in any business enterprise owned (directly or indirectly) by the private foundation and its disqualified persons in combination prior to the exchange by reason of their ownership of the stock surrendered by them in the exchange, then:

(A) That portion of the stock received by the disqualified persons in the exchange which represents such excess is to be treated as an increase in the holdings of the disqualified persons in accordance with § 53.4943-6(d), and

(B) Only the remaining portion of the stock received by the disqualified persons in the exchange is to be treated as the stock surrendered by the disqualified persons in the exchange.

(3) Increases in percentage of both voting stock and value. (i) If, as the result of an exchange described in paragraph (a) of this section, a private foundation has excesses determined under both paragraphs (b)(1)(i) and (b)(2)(i) of this section, then:

(A) That portion of the stock received by the private foundation in the exchange that represents the larger excess is to be treated as an increase in the holdings of the private foundation in accordance with § 53.4943-6(d), and

(B) Only the remaining portion of the stock received by the private foundation in the exchange is to be treated as the stock surrendered by the private foundation in the exchange.

(ii) If as the result of an exchange described in paragraph (a) of this section, disqualified persons have excesses determined under both paragraphs (b)(1)(ii) and (b)(2)(ii) of this section, then:

(A) That portion of the stock received by the disqualified persons in the exchange that represents the larger excess is to be treated as an increase in the holdings of the disqualified persons in accordance with § 53.4943-6(d), and

(B) Only the remaining portion of the stock received by disqualified persons in the exchange is to be treated as the stock surrendered by disqualified persons in the exchange.

(4) Exception for prohibited transactions. If a readjustment includes a prohibited transaction, as defined in paragraph (d)(2) of this section, then this paragraph shall be applied substituting, for purposes of paragraph (b)(1) and (b)(2), the lowest percentage of voting power or value owned prior to the exchange in any business enterprise involved in the readjustment to which the exchange relates for the greatest percentage of voting power or value in any business enterprise owned by reason of ownership of the stock surrendered in the exchange.

(5) Voting and value levels. After an exchange described in paragraph (a) of this section, the private foundation voting and value levels, and the substituted combined voting and value levels (as defined in § 53.4943-4(d)(2)) shall be the lesser of each respective level immediately prior to the exchange with respect to the stock surrendered in the exchange and each such respective level determined immediately after the exchange by taking into account only the stock received in the exchange that is treated under this paragraph as the stock surrendered in the exchange. If the stock of more than one corporation is surrendered in exchange for stock of one corporation, the highest of each voting or value level determined immediately prior to the exchange with respect to the stock of the corporations surrendered in the exchange shall be treated as such level immediately prior to the exchange.

(6) Determination of phases—(i) In general. Stock received in an exchange described in paragraph (a) of this section that is treated as stock surrendered in the exchange under this paragraph shall be treated as subject to the same first, second, and third phases that were applicable to the stock surrendered for it. For purposes of determining the applicable phases, stock received in an exchange shall be treated as received in exchange for particular holdings of stock surrendered based on the terms of the exchange. Where only a portion of the stock received is treated as the stock surrendered, such portion of the stock received shall be treated as exchanged for particular holdings of stock surrendered in the same proportions as the total stock received was exchanged for particular holdings of stock surrendered. For example, if 20 shares of X stock owned by a private foundation, subject to a first phase beginning on January 1, 1978 and ending on December 31, 1987, are exchanged for 20 shares of Y stock, and 40 shares of X stock owned by the private foundation, subject to a first phase beginning on June 1, 1980 and ending on May 31, 1990, are exchanged for 40 shares of Y stock, then 1/3 of the Y stock received by the private foundation is treated as received in exchanged for X stock having the January 1, 1978-December 31, 1987 first phase and 2/3 of the Y stock received by the private foundation is treated as received in exchange for the X stock having the June 1, 1980-May 31, 1990 first phase. If only 30 shares of the Y stock received by the private foundation are treated as the stock surrendered, then 1/3 (10 Y shares) will be subject to the January 1, 1978-December 31, 1987 first phase and 2/3 (20 Y shares) will be subject to the June 1, 1980-May 31, 1990 first phase.

(ii) Transitional rule. In any case in which holdings subject to section 4943(c)(4) or 4943(c)(5) have been consolidated prior to May 22, 1984, then the longest first phase applicable to any of the holdings surrendered in the consolidation shall be applied to the holdings received by the foundation in the consolidation that are treated as the holdings surrendered in the consolidation. For purposes of this clause, a consolidation is any readjustment that results in a reduction in the number of entities in which the foundation has direct holdings.

(c) Plan to dispose of excess business holdings. (1) Notwithstanding § 53.4943-4(d)(i)(4)(D) (relating to restrictions on increases in levels) and paragraphs (a) and (b) of this section, if a readjustment occurs under an approved plan to dispose of stock to which section 4943(c) (4) or (5) applies, in order to meet the requirements of section 4943(c)(4) (i.e., to meet the reduced limits that will be applicable after the first phase holding period described in § 53.4943-4(c)) or to meet the requirements of section 4943(c)(2), all of the stock received in the readjustment shall be treated as held by disqualified persons through the end of the longest first phase holding period applicable to stock surrendered in the readjustment. The foundation and substituted combined voting and value levels shall not be increased on account of the readjustment.

(2) For purposes of this paragraph, a plan is an approved plan only if it is approved by the Commissioner and may be subject to such conditions as the Commissioner determines. A plan must be approved prior to any exchange or distribution pursuant to the plan except for a showing of good cause such as a business emergency.

(d) Definitions—(1) Readjustments. For purposes of this section, the term “readjustment” includes, but is not limited to:

(i) A merger or consolidation;

(ii) A recapitalization;

(iii) An acquisition of stock or assets;

(iv) A transfer of assets;

(v) A change in identity, form, or place of organization, however effected;

(vi) A redemption;

(vii) A distribution of assets or of stock, including a distribution to which section 301, 302, 331, or 355 applies or a distribution of stock of the distributing corporation.

(2) Prohibited transaction. A prohibited transaction is any transaction involving a private foundation that has holdings in a business enterprise which:

(i) Acquires stock (or similar interest in the case of an unincorporated entity) or assets of a business enterprise or redeems its own stock (or similar interest in the case of an unincorporated entity) using cash or other property transferred to the acquiring business enterprise (e.g., as a contribution to capital) by the private foundation, its disqualified persons, or both;

(ii) Acquires stock (or similar interest in the case of an unincorporated entity) or assets of a business enterprise or redeems its own stock (or similar interest in the case of an unincorporated entity) using the proceeds of a loan made to, or guaranteed by, the private foundation, its disqualified persons, or both;

(iii) Acquires 40 percent or more of the voting stock (or similar interest in the case of an unincorporated entity), 40 percent or more of the value of all outstanding shares of all classes of stock (or similar interest in the case of an unincorporated entity), or 40 percent or more of the assets of a business enterprise if the acquiring business enterprise's net assets used in its trade or business prior to such acquisition are insubstantial when compared to the net assets acquired or when compared to the net assets of the business enterprise, the stock (or similar interest in the case of an unincorporated entity) of which was acquired. For this purpose, an insubstantial ratio means a ratio that is 15% or less; or

(iv) Is used as a device to acquire or expand excess business holdings. The determination of whether a business enterprise is used as a device to acquire or expand excess business holdings shall be determined based on all the facts and circumstances. A business enterprise shall be presumed to have been used as a device to acquire or expand excess business holdings if it acquires 40 percent or more of the voting stock (or similar interest in the case of an unincorporated entity), 40 percent or more of the value of all outstanding shares of all classes of stock (or similar interest in the case of an unincorporated entity), or 40 percent or more of the assets of a business enterprise if the consideration for the acquisition consists primarily of nonvoting stock (or similar interest in the case of an unincorporated entity) of the acquiring business enterprise.

(3) Corporation involved in a readjustment. A corporation shall be treated as involved in a readjustment if, as part of the readjustment, any stock of the corporation is issued or redeemed, or any stock or assets of the corporation are distributed, exchanged, purchased, sold, acquired, or otherwise transferred.

(e) Application to unincorporated business enterprise. The rules of this section shall apply equally to partnerships and other unincorporated business enterprises, applying the rules and substitutions provided in § 53.4943-3(c)(2), (3), and (4).

(f) Examples. The provisions of this section and § 53.4943-6(d) are illustrated by the following examples, which assume no prohibited transactions are involved unless otherwise stated:

(a) Constructive ownership—(1) In general. For purposes of section 4943, in computing the holdings in a business enterprise of a private foundation, or a disqualified person (as defined in section 4946), any stock or other interest owned, directly or indirectly, by or for a corporation, partnership, estate or trust shall be considered as being owned proportionately by or for its shareholders, partners, or beneficiaries except as otherwise provided in paragraphs (b), (c) and (d) of this section. Any interest in a business enterprise actually or constructively owned by a shareholder of a corporation, a partner of a partnership, or beneficiary of an estate or trust shall not be considered as constructively held by the corporation, partnership, trust or estate. Further, if any corporation, partnership, estate or trust has a warrant or other option to acquire an interest in a business enterprise, such interest is not deemed to be constructively owned by such entity until the option is exercised. (See paragraph (b)(2) of § 53.4943-3 for rules that options are not stock for purposes of determining excess business holdings.)

(2) Powers of appointment. Any interest in business enterprise over which a foundation or a disqualified person has a power of appointment exercisable in favor of the foundation or a disqualified person shall be considered owned by the foundation or disqualified person holding such power of appointment.

(3) Determination of extent of constructive ownership. If an interest in a business enterprise owned by a corporation is constructively owned by a shareholder, each shareholder's proportion of ownership is generally computed on the basis of the voting stock each shareholder has in the corporation. In determining holdings permitted under section 4943(c) (4) and (5), each shareholder's proportion of ownership in the business enterprise shall also be computed on the basis of value, taking into account both voting and nonvoting stock held by the shareholder.

(4) Nonvoting stock. If a private foundation, its disqualified persons, or both, own (directly or constructively) nonvoting stock of a parent corporation, the holdings of which are treated as constructively owned by its shareholders by reason of section 4943(d)(1) and this section, such nonvoting stock shall be treated as nonvoting stock of any corporation in which the parent corporation holds an interest for purposes of the limitation on the holding of nonvoting stock under section 4943(c)(2)(A) and § 53.4943-3(b)(2).

(5) Interests held by certain disqualified persons. In the case of an entity that is a disqualified person (other than an entity described in section 4946(a)(1)(H)), the holdings of which are treated as constructively owned by its shareholders, partners, or beneficiaries, for purposes of determining the total holdings of disqualified persons the holdings of the entity shall be considered held by a disqualified person only to the extent such holdings are treated as constructively owned by disqualified persons who are shareholders, partners, or beneficiaries of the entity. In the case of an entity described in section 4946(a)(1)(H) or an entity, the holdings of which are not treated as constructively owned by its shareholders, partners, or beneficiaries, all holdings of such entity shall be treated as held by a disqualified person if and only if the entity itself is a disqualified person.

(b) Estates and trusts—(1) In general. Any interest actually or constructively owned by an estate or trust is deemed constructively owned, in the case of an estate, by its beneficiaries or, in the case of a trust, by its remainder beneficiaries except as provided in paragraphs (b) (2), (3) and (4) of this section (relating to certain split-interest trusts described in section 4947(a)(2), to trusts of qualified pension, profit-sharing, and stock bonus plans described in section 401(a) and to revocable trusts). Thus, if a trust owns 100 percent of the stock of a corporation A, and if, on an actuarial basis, W's life interest in the trust is 15 percent, Y's life interest is 25 percent, and Z's remainder interest is 60 percent, under this paragraph (b), Z will be considered to be the owner of 100 percent of the stock of corporation A. See § 53.4943-4, § 53.4943-5 and § 53.4943-6 for rules relating to certain actual or constructive holdings of a foundation being treated as held by a disqualified person. For the treatment of certain property acquired by an estate or trust after May 26, 1969, see paragraph (a)(2) of § 53.4943-5.

(2) Split-interest trusts—(i) Amounts transferred in trust after May 26, 1969. In the case of an interest in a business enterprise which was transferred to a trust described in section 4947(a)(2) after May 26, 1969, for the benefit of a private foundation, no portion of such interest shall be considered as owned by the private foundation:

(A) If the foundation holds only an income interest in the trust, or

(B) If the foundation holds only a remainder interest in the trust (unless the foundation can exercise primary investment discretion with respect to such interest)

(ii) Amounts transferred in trust on or before May 26, 1969. In the case of an interest in a business enterprise which was transferred to a trust described in section 4947(a)(2) (without regard to section 4947(a)(2)(C)) on or before May 26, 1969, for the benefit of a private foundation, no portion of such interest shall be considered as owned by the foundation until it is actually distributed to the foundation or until the trust ceases to be so described. See section 4943(c)(5) and § 53.4943-5 for rules relating to certain trusts which were irrevocable on May 26, 1969.

(3) Employee benefit trusts. An interest in a business enterprise owned by a trust described in section 401(a) (pension and profit-sharing plans) shall not be considered as owned by its beneficiaries, unless disqualified persons (within the meaning of section 4946) control the investment of the trust assets.

(4) Revocable trusts. An interest in a business enterprise owned by a revocable trust shall be treated as owned by the grantor of such trust.

(5) Estates. For purposes of applying section 4943(d)(1) to estates, the term “beneficiary” includes any person (including a private foundation) entitled to receive property of a decedent pursuant to a will or pursuant to laws of descent and distribution. However, a person shall no longer be considered a beneficiary of an estate when all the property to which he is entitled has been received by him, when he no longer has a claim against the estate and when there is only a remote possibility that it will be necessary for the estate to seek the return of property or to seek payment from him by contribution or otherwise to satisfy claims against the estate or expenses of administration. When pursuant to the preceding sentence, a person (including a private foundation) ceases to be a beneficiary, stock or another interest in a business enterprise owned by the estate shall not thereafter be considered owned by such person. If any person is the constructive owner of an interest in a business enterprise actually held by an estate, the date of death of the testator or decedent intestate shall be the first day on which such person shall be considered a constructive owner of such interest. See § 53.4943-5 for rules relating to wills executed on or before May 26, 1969.

(c) Corporation actively engaged in a trade or business—(1) In general. Except as provided in paragraphs (c)(2) and (3) of this section, any interest (whether or not in a separate entity) owned by a corporation which is actively engaged in a trade or business shall not be deemed to be constructively owned by such corporation's shareholders.

(2) Actively engaged in a trade or business. For purposes of paragraph (c)(1) of this section:

(i) A corporation shall not be considered to be actively engaged in a trade or business if the corporation is not a business enterprise by reason of section 4943(d)(3) (A) or (B) and § 53.4943-10 (b) or (c);

(ii) In the case of a corporation which owns passive holdings and is actively engaged in a trade or business, such corporation shall not be considered to be actively engaged in a trade or business if the net assets used in such trade or business are insubstantial when compared to passive holdings.

(3) Exceptions. If a corporation has been involved in a prohibited transaction, any interest in a business enterprise owned by such corporation shall be treated as constructively owned by its shareholders, whether or not such corporation is actively engaged in a trade or business. For a definition of prohibited transaction, see § 53.4943-7 (d)(2).

(4) Affiliated group. In applying this paragraph to the common parent in an affiliated group (as defined in § 53.4943-10 (c)(3)(ii)), the assets and activities of the affiliated group shall be treated as the assets and activities of the common parent.

(d) Partnerships. Any interest in a business enterprise which is owned by a partnership shall be deemed to be constructively owned by the partners in such partnerships.

(e) Examples. The provisions of this section are illustrated by the following examples.

(a) Taxable period—(1) In general. For purposes of section 4943, the term “taxable period” means, with respect to any excess business holdings of a private foundation in a business enterprise, the period beginning with the first day on which there are such excess business holdings and ending on the earliest of:

(i) The date of mailing of a notice of deficiency under section 6212 with respect to the tax imposed on the holdings by the section 4943(a);

(ii) The date on which the excess is eliminated; or

(iii) The date on which the tax imposed by section 4943(a) is assessed.

(2) Special rule. Where a notice of deficiency referred to in subparagraph (1)(i) of this paragraph is not mailed because there is a waiver of the restrictions on assessment and collection of a deficiency, or because the deficiency is paid, the date of filing of the waiver or the date of such payment, respectively, shall be treated as the end of the taxable period.

(3) Suspension of taxable period for 90 days. In any case in which a private foundation has excess business holdings solely because of the acquisition of an interest in a business enterprise to which paragraph (a)(1) (ii) or (iii) of § 53.4943-2 applies, the taxable period described in paragraph (a) of this section shall be suspended for the 90-day period (as extended) starting with the date on which the foundation knows or has reason to know of the acquisition, provided that at the end of such period the foundation has disposed of such excess holdings.

(b) Cross reference. For rules relating to taxable events that are corrected within the correction period, defined in section 4863(e), see section 4861(a) and the regulations thereunder.

(c) Correction. For purposes of section 4943, correction shall be considered as made when no interest in the enterprise held by the foundation is classified as an excess business holdings under section 4943(c)(1). In any case where the private foundation has excess business holdings which are constructively held for it under section 4943(c)(1), correction shall be considered made when either a corporation, partnership, estate, or trust in which holdings in such enterprise are constructively held for the foundation or a disqualified person; the foundation itself; or a disqualified person disposes of a sufficient interest in the enterprise so that no interest in the enterprise held by the foundation is classified as excess business holdings under section 4943(c)(1).

(a) In general. (1) Except as provided in paragraph (b) or (c) of this section under section 4943(d)(4) the term “business enterprise” includes the active conduct of a trade or business, including any activity which is regularly carried on for the production of income from the sale of goods or the performance of services and which constitutes an unrelated trade or business under section 513. For purposes of the preceding sentence, where an activity carried on for profit constitutes an unrelated trade or business, no part of such trade or business shall be excluded from the classification of a business enterprise merely because it does not result in a profit.

(2) Notwithstanding paragraph (a)(1) of this section, a bond or other evidence of indebtedness does not constitute a holding in a business enterprise unless such bond or evidence of indebtedness is otherwise determined to be an equitable interest in such enterprise. Similarly, a lease-hold interest in real property does not constitute an interest in a business enterprise, even though rent payable under such lease is dependent, in whole or in part, upon the income or profits derived by another from such property, unless such leasehold interest constitutes an interest in the income or profits of an unrelated trade or business under section 513.

(b) Certain program-related activities. For purposes of section 4943(d)(4) the term “business enterprise” does not include a functionally related business as defined in section 4942(j)(5). See § 53.4942(a)-2(c)(3)(iii). In addition, business holdings do not include program-related investments (such as investments in small businesses in central cities or in corporations to assist in neighborhood renovation) as defined in section 4944(c) and the regulations thereunder.

(c) Income derived from passive sources—(1) In general. For purposes of section 4943(d)(4), the term “business enterprise” does not include a trade or business at least 95 percent of the gross income of which is derived from passive sources; except that if in the taxable year in question less than 95 percent of the income of a trade or business is from passive sources, the foundation may, in applying this 95 percent test, substitute for the passive source gross income in such taxable year the average gross income from passive sources for the 10 taxable years immediately preceding the taxable year in question (or for such shorter period as the entity has been in existence). Thus, stock in a passive holding company is not to be considered a holding in a business enterprise even if the company is controlled by the foundation. Instead, the foundation is treated as owning its proportionate share of any interests in a business enterprise held by such company under section 4943(d)(1).

(2) Gross income from passive sources. Gross income from passive sources, for purposes of this paragraph, includes the items excluded by section 512(b)(1) (relating to dividends, interest, and annuities), 512(b)(2) (relating to royalties), 512(b)(3) (relating to rent) and 512(b)(5) (relating to gains or losses from the disposition of certain property). Any income classified as passive under this paragraph does not lose its character merely because section 512(b)(4) or 514 (relating to unrelated debt-financed income) applies to such income. In addition, income from passive sources includes income from the sale of goods (including charges or costs passed on at cost to purchasers of such goods or income received in settlement of a dispute concerning or in lieu of the exercise of the right to sell such goods) if the seller does not manufacture, produce, physically receive or deliver, negotiate sales of, or maintain inventories in such goods. Thus, for example, where a corporation purchases a product under a contract with the manufacturer, resells it under contract at a uniform markup in price, and does not physically handle the product, the income derived from that markup meets the definition of passive income for purposes of this paragraph. On the other hand, income from individually negotiated sales, such as those made by a broker, would not meet such definition even if the broker did not physically handle the goods.

(3) Affiliated group. (i) For a common parent corporation in an affiliated group, substitute “consolidated gross income” in subparagraph (1) of this paragraph.

(ii) For purposes of this section, the term affiliated group shall have the same meaning as in section 1504(a), without regard to section 1504 (b) through (e).

(iii) Section 53.4943-11(d) provides a transitional rule for certain parent corporations.

(d) Application of section 4943(c)(6)—(1) Program related activities. If a private foundation holds an interest which is not an interest in a business enterprise because of paragraph (b) of this section (relating to program related activities), and such interest later becomes an interest in a business enterprise solely by reason of failing to meet the requirements of such paragraph (b), such interest will then be subject to section (regardless of when it was originally acquired) and will be treated as having been acquired other than by purchase for purposes of section 4943(c)(6).

(2) Passive holdings, etc. (i) Except as provided in subdivision (ii), if a private foundation holds an interest that is not an interest in a business enterprise, and the interest later becomes an interest in a business enterprise (other than by reason of a readjustment as defined in § 53.4943-7(d)(1)), the interest will be treated as having been acquired by purchase by a disqualified person at the time the interest becomes an interest in a business enterprise. The treatment of an interest that becomes an interest in a business enterprise by reason of a readjustment shall be determined under § 53.4943-6 and § 53.4943-7.

(ii) If a private foundation establishes that the events which caused an interest not originally a business enterprise to become a business enterprise were not effectively controlled by the private foundation, then such interest shall be treated as acquired other than by purchase from the time of the change for purposes of section 4943(c)(6).

(iii) See § 53.4943-3(b)(3)(ii) for the definition of effective control.

(e) Sole proprietorship. For purposes of section 4943 and the regulations thereunder, the term “sole proprietorship” means any business enterprise (as defined in paragraphs (a), (b), and (c) of this section:

(1) Which is actually and directly owned by a private foundation,

(2) In which the foundation has a 100 percent equity interest, and

(3) Which is not held by a corporation, trust, or other business entity for such foundation.

(a) In general. Section 4943 and §§ 53.4943-1 through 53.4943-11 shall take effect for taxable years beginning after December 31, 1969, except as otherwise provided by such sections.

(b) Special transitional rule. In the case of any acquisition of excess holdings prior to February 2, 1973, section 4943(a)(1) shall not apply if correction occurs (within the meaning of paragraph (c) of § 53.4943-9) within a period ending 90 days after July 5, 1977 extended (prior to the expiration of the original period) by any period which the Commissioner determines is reasonable and necessary (within the meaning of paragraph (b) of § 53.4943-9) to bring about such correction.

(c) Special transitional rule for acquisition by will, etc. (1) The rule in § 53.4943-6(b)(1) whereby holdings not held by a decedent are not treated as acquired under a will shall not apply to acquisitions of after-acquired property of a decedent's estate occurring on or before May 22, 1984.

(2) The rule in § 53.4943-6(b)(1) treating a purchase by an estate as a purchase by a disqualified person where the executor is a disqualified person shall not apply to purchases occurring on or before May 22, 1984.

(d) Special transitional rule for affiliated groups. If on or before May 22, 1984 a foundation holds an interest in a common parent corporation in an affiliated group, as defined in § 53.4943-10(c)(3)(ii), the foundation may elect to have both § 53.4943-8(c)(4) and § 53.4943-10(c)(3) not apply to such common parent corporation. No election may be made to have only one section not apply. Such election shall be made by the governing body of the private foundation at any time prior to February 22, 1985.

(e) Special transitional rule for changes to a business enterprise. Any interest that is not an interest in a business enterprise which becomes an interest in a business enterprise under § 53.4943-10(d)(2) prior to May 22, 1984 will be treated as having been acquired other than by purchase for purposes of section 4943(c)(6).

(f) Special transitional rule for private foundations that qualified as Type III supporting organizations before August 17, 2006. The present holdings of a private foundation that qualified as a Type III supporting organization under section 509(a)(3) immediately before August 17, 2006, and that was reclassified as a private foundation under section 509(a) on or after August 17, 2006, solely as a result of the rules enacted by section 1241 of the Pension Protection Act of 2006, Public Law 109-280 (120 Stat. 780), will be determined using the same rules that apply to Type III supporting organizations under section 4943(f)(7).

(g) Special transitional rule for Type III supporting organizations created as trusts before November 20, 1970. A trust that qualifies as a Type III supporting organization under section 509(a)(3) and meets the requirements of § 1.509(a)-4(i)(9) of this chapter will be treated as a “functionally integrated Type III supporting organization” for purposes of section 4943(f)(3)(A).