A prior section 53, added Puspan. L. 95–30, title II, § 202(span), May 23, 1977, 91 Stat. 146; amended Puspan. L. 95–600, title III, § 321(c)(2), Nov. 6, 1978, 92 Stat. 2835; Puspan. L. 97–34, title II, § 207(c)(2), Aug. 13, 1981, 95 Stat. 225; Puspan. L. 97–248, title II, § 201(d)(8)(A), formerly § 201(c)(8)(A), and § 265(span)(2)(A)(iii), Sept. 3, 1982, 96 Stat. 420, 547, renumbered § 201(d)(8)(A), Puspan. L. 97–448, title III, § 306(a)(1)(A)(i), Jan. 12, 1983, 96 Stat. 2400; 97–354, § 5(a)(12), Oct. 19, 1982, 96 Stat. 1693; 97–448, title I, § 102(d)(3), Jan. 12, 1983, 96 Stat. 2370; Puspan. L. 98–21, title I, § 122(c)(1), Apr. 20, 1983, 97 Stat. 87; Puspan. L. 98–369, div. A, title VII, § 713(c)(1)(C), July 18, 1984, 98 Stat. 957, placed limitations on the amount of credit allowed by former section 44B for employment of certain new employees, prior to repeal by Puspan. L. 98–369, div. A, title IV, § 474(p)(8), July 18, 1984, 98 Stat. 838, applicable to taxable years beginning after Dec. 31, 1983, and to carrybacks from such years.

2022—Subsec. (d)(2). Puspan. L. 117–169, § 10101(e)(2)(A), struck out “, except that in the case of a corporation, the tentative minimum tax shall be treated as zero” after “section 55(span)”.

Subsec. (d)(3). Puspan. L. 117–169, § 10101(e)(2)(B), struck out par. (3). Prior to amendment, text read as follows: “In the case of a corporation, any references in this subsection to section 55, 56, or 57 shall be treated as a reference to such section as in effect before the amendments made by Tax Cuts and Jobs Act.”

Subsec. (e). Puspan. L. 117–169, § 10101(e)(1), amended subsec. (e) generally. Prior to amendment, subsec. (e) related to portion of credit treated as refundable.

2020—Subsec. (e)(1). Puspan. L. 116–136, § 2305(a)(1), substituted “2018 or 2019” for “2018, 2019, 2020, or 2021”.

Subsec. (e)(2). Puspan. L. 116–136, § 2305(a)(2), substituted “2019” for “2021” in introductory provisions.

Subsec. (e)(5). Puspan. L. 116–136, § 2305(span)(1), added par. (5).

2017—Subsec. (d)(2). Puspan. L. 115–97, § 12001(span)(2), inserted “, except that in the case of a corporation, the tentative minimum tax shall be treated as zero” before period at end.

Subsec. (d)(3). Puspan. L. 115–97, § 12002(span), added par. (3).

Subsec. (e). Puspan. L. 115–97, § 12002(a), added subsec. (e).

2014—Subsecs. (e), (f). Puspan. L. 113–295 struck out subsecs. (e) and (f) which related to special rule for individuals with long-term unused credits and treatment of certain underpayments, interest, and penalties attributable to the treatment of incentive stock options, respectively.

2009—Subsec. (d)(1)(B)(iii). Puspan. L. 111–5, § 1142(span)(4)(A), redesignated cl. (iv) as (iii) and struck out former cl. (iii). Prior to amendment, text read as follows: “The adjusted net minimum tax for the taxable year shall be increased by the amount of the credit not allowed under section 30 solely by reason of the application of section 30(span)(3)(B).”

Subsec. (d)(1)(B)(iii)(II). Puspan. L. 111–5, § 1142(span)(4)(B), struck out “increased in the manner provided in clause (iii)” before period.

Subsec. (d)(1)(B)(iv). Puspan. L. 111–5, § 1142(span)(4)(A), redesignated cl. (iv) as (iii).

2008—Subsec. (e)(2). Puspan. L. 110–343, § 103(a), reenacted span without change and amended text generally. Prior to amendment, par. (2) defined “AMT refundable credit amount” and provided for phaseout of AMT refundable credit amount based on adjusted gross income.

Subsec. (f). Puspan. L. 110–343, § 103(span), added subsec. (f).

2007—Subsec. (e)(2)(A). Puspan. L. 110–172 reenacted span without change and amended text generally. Prior to amendment, text read as follows: “The term ‘AMT refundable credit amount’ means, with respect to any taxable year, the amount equal to the greater of—

“(i) the lesser of—

“(I) $5,000, or

“(II) the amount of long-term unused minimum tax credit for such taxable year, or

“(ii) 20 percent of the amount of such credit.”

2006—Subsec. (e). Puspan. L. 109–432 added subsec. (e).

2005—Subsec. (d)(1)(B)(iii). Puspan. L. 109–58 struck out “under section 29 (relating to credit for producing fuel from a nonconventional source) solely by reason of the application of section 29(span)(6)(B), or not allowed” before “under section 30”.

2004—Subsec. (d)(1)(B)(i)(II). Puspan. L. 108–357 struck out “and if section 59(a)(2) did not apply” before period at end.

1996—Subsec. (d)(1)(B)(iii). Puspan. L. 104–188, § 1205(d)(5)(A), which directed that cl. (iii) be amended by striking out “or not allowed under section 28 solely by reason of the application of section 28(d)(2)(B),” was executed by striking out “not allowed under section 28 solely by reason of the application of section 28(d)(2)(B),” after “29(span)(6)(B),”, to reflect the probable intent of Congress.

Subsec. (d)(1)(B)(iv)(II). Puspan. L. 104–188, § 1704(j)(1), amended subcl. (II) generally. Prior to amendment, subcl. (II) read as follows: “the adjusted net minimum tax for any taxable year is the amount of the net minimum tax for such year increased by the amount of any credit not allowed under section 29 solely by reason of the application of section 29(span)(5)(B) or not allowed under section 28 solely by reason of the application of section 28(d)(2)(B).”

Puspan. L. 104–188, § 1205(d)(5)(B), which directed that subcl. (II) be amended by striking out “or not allowed under section 28 solely by reason of the application of section 28(d)(2)(B)”, could not be executed because the phrase sought to be struck out did not appear in text subsequent to the general amendment of subcl. (II) by Puspan. L. 104–188, § 1704(j)(1), see above, which, pursuant to section 1701 of Puspan. L. 104–188, set out as a note under section 1 of this title, is treated as having been enacted before section 1205(d)(5)(B) of Puspan. L. 104–188.

1993—Subsec. (d)(1)(B)(ii)(II). Puspan. L. 103–66, § 13171(c), substituted “(5), and (7)” for “(5), (6), and (8)”.

Puspan. L. 103–66, § 13113(span)(2), substituted “(6), and (8)” for “and (6)”.

1992—Subsec. (d)(1)(B)(iii). Puspan. L. 102–486, § 1913(span)(2)(C)(i), substituted “section 29(span)(6)(B),” for “section 29(span)(5)(B) or”.

Puspan. L. 102–486, § 1913(span)(2)(C)(ii), inserted before period at end “, or not allowed under section 30 solely by reason of the application of section 30(span)(3)(B)”.

1989—Subsec. (d)(1)(B)(i)(II). Puspan. L. 101–239, § 7811(d)(2), inserted before period at end “and if section 59(a)(2) did not apply”.

Subsec. (d)(1)(B)(ii). Puspan. L. 101–239, § 7612(a)(2), substituted “subsection (span)(1)” for “subsections (span)(1) and (c)(3)” in subcl. (I) and struck out at end “In the case of taxable years beginning after 1989, the adjustments provided in section 56(g) shall be treated as specified in this clause to the extent attributable to items which are excluded from gross income for any taxable year for purposes of the regular tax, or are not deductible for any taxable year under the adjusted current earnings method of section 56(g).”

Subsec. (d)(1)(B)(iii). Puspan. L. 101–239, § 7612(span)(1), which directed amendment of cl. (iii) by inserting “or not allowed under section 28 solely by reason of the application of section 28(d)(2)(B)” after “section 29(d)(5)(B)”, was executed by making the insertion after “section 29(span)(5)(B)”, as the probable intent of Congress.

Subsec. (d)(1)(B)(iv). Puspan. L. 101–239, § 7612(span)(1), which directed amendment of cl. (iv) by inserting “or not allowed under section 28 solely by reason of the application of section 28(d)(2)(B)” after “section 29(d)(5)(B)”, was executed by making the insertion after “section 29(span)(5)(B)” in subcl. (II), as the probable intent of Congress.

Puspan. L. 101–239, § 7612(a)(1), added cl. (iv).

1988—Subsec. (d)(1)(B)(ii). Puspan. L. 100–647, § 1007(g)(4), substituted “current earnings” for “earnings and profits” in last sentence.

Subsec. (d)(1)(B)(iii). Puspan. L. 100–647, § 6304(a), added cl. (iii).

Amendment by Puspan. L. 117–169 applicable to taxable years beginning after Dec. 31, 2022, see section 10101(f) of Puspan. L. 117–169, set out as a note under section 11 of this title.

Puspan. L. 116–136, div. A, title II, § 2305(c), Mar. 27, 2020, 134 Stat. 357, provided that: “The amendments made by this section [amending this section] shall apply to taxable years beginning after December 31, 2017.”

Amendment by section 12001(span)(2) of Puspan. L. 115–97 applicable to taxable years beginning after Dec. 31, 2017, see section 12001(c) of Puspan. L. 115–97, set out as a note under section 11 of this title.

Puspan. L. 115–97, title I, § 12002(d), Dec. 22, 2017, 131 Stat. 2095, provided that:

Amendment by Puspan. L. 113–295 effective Dec. 19, 2014, subject to a savings provision, see section 221(span) of Puspan. L. 113–295, set out as a note under section 1 of this title.

Amendment by Puspan. L. 111–5 applicable to vehicles acquired after Fespan. 17, 2009, see section 1142(c) of Puspan. L. 111–5, set out as an Effective and Termination Dates of 2009 Amendment note under section 24 of this title.

Puspan. L. 110–343, div. C, title I, § 103(c), Oct. 3, 2008, 122 Stat. 3864, provided that:

Puspan. L. 110–172, § 2(span), Dec. 29, 2007, 121 Stat. 2474, provided that: “The amendment made by this section [amending this section] shall take effect as if included in the provision of the Tax Relief and Health Care Act of 2006 [Puspan. L. 109–432] to which it relates.”

Puspan. L. 109–432, div. A, title IV, § 402(c), Dec. 20, 2006, 120 Stat. 2954, provided that: “The amendments made by this section [amending this section, section 6211 of this title, and section 1324 of Title 31, Money and Finance] shall apply to taxable years beginning after the date of the enactment of this Act [Dec. 20, 2006].”

Amendment by Puspan. L. 109–58 applicable to credits determined under the Internal Revenue Code of 1986 for taxable years ending after Dec. 31, 2005, see section 1322(c)(1) of Puspan. L. 109–58, set out as a note under section 45K of this title.

Puspan. L. 108–357, title IV, § 421(span), Oct. 22, 2004, 118 Stat. 1514, provided that: “The amendments made by this section [amending this section and section 59 of this title] shall apply to taxable years beginning after December 31, 2004.”

Amendment by section 1205(d)(5) of Puspan. L. 104–188 applicable to amounts paid or incurred in taxable years ending after June 30, 1996, see section 1205(e) of Puspan. L. 104–188, set out as a note under section 45K of this title.

Puspan. L. 104–188, title I, § 1704(j)(1), Aug. 20, 1996, 110 Stat. 1881, provided that the amendment made by that section is effective with respect to taxable years beginning after Dec. 31, 1990.

Puspan. L. 103–66, title XIII, § 13113(e), Aug. 10, 1993, 107 Stat. 430, provided that: “The amendments made by this section [enacting section 1202 of this title and amending this section and sections 57, 172, 642, 643, 691, 871, and 6652 of this title] shall apply to stock issued after the date of the enactment of this Act [Aug. 10, 1993].”

Puspan. L. 103–66, title XIII, § 13171(d), Aug. 10, 1993, 107 Stat. 455, provided that: “The amendments made by this section [amending this section and sections 56 and 57 of this title] shall apply to contributions made after June 30, 1992, except that in the case of any contribution of capital gain property which is not tangible personal property, such amendments shall apply only if the contribution is made after December 31, 1992.”

Puspan. L. 104–188, title I, § 1702(e)(5), Aug. 20, 1996, 110 Stat. 1870, provided that: “The amendment made by section 1913(span)(2)(C)(i) of the Energy Policy Act of 1992 [Puspan. L. 102–486] shall apply to taxable years beginning after December 31, 1990.”

Puspan. L. 102–486, title XIX, § 1913(c), Oct. 24, 1992, 106 Stat. 3020, provided that: “The amendments made by this section [enacting sections 30 and 179A of this title and amending this section and sections 55, 62, and 1016 of this title] shall apply to property placed in service after June 30, 1993.”

Puspan. L. 101–239, title VII, § 7612(a)(3), Dec. 19, 1989, 103 Stat. 2373, provided that: “The amendments made by this subsection [amending this section] shall apply for purposes of determining the adjusted net minimum tax for taxable years beginning after December 31, 1989.”

Puspan. L. 101–239, title VII, § 7612(span)(2), Dec. 19, 1989, 103 Stat. 2374, provided that: “The amendment made by paragraph (1) [amending this section] shall apply for purposes of determining the amount of the minimum tax credit for taxable years beginning after December 31, 1989; except that, for such purposes, section 53(span)(1) of the Internal Revenue Code of 1986 shall be applied as if such amendment had been in effect for all prior taxable years.”

Amendment by section 7811(d)(2) of Puspan. L. 101–239 effective, except as otherwise provided, as if included in the provision of the Technical and Miscellaneous Revenue Act of 1988, Puspan. L. 100–647, to which such amendment relates, see section 7817 of Puspan. L. 101–239, set out as a note under section 1 of this title.

Amendment by section 1007(g)(4) of Puspan. L. 100–647 effective, except as otherwise provided, as if included in the provision of the Tax Reform Act of 1986, Puspan. L. 99–514, to which such amendment relates, see section 1019(a) of Puspan. L. 100–647, set out as a note under section 1 of this title.

Puspan. L. 100–647, title VI, § 6304(span), Nov. 10, 1988, 102 Stat. 3756, provided that: “The amendment made by this section [amending this section] shall take effect as if included in the amendments made by section 701 of the Tax Reform Act of 1986 [Puspan. L. 99–514].”

Section applicable to taxable years beginning after Dec. 31, 1986, with certain exceptions and qualifications, see section 701(f) of Puspan. L. 99–514, set out as an Effective Date of 1986 Amendment note under section 55 of this title.

For applicability of amendment by section 701(span) of Puspan. L. 99–514 [enacting this section] notwithstanding any treaty obligation of the United States in effect on Oct. 22, 1986, with provision that for such purposes any amendment by title I of Puspan. L. 100–647 be treated as if it had been included in the provision of Puspan. L. 99–514 to which such amendment relates, see section 1012(aa)(2), (4) of Puspan. L. 100–647, set out as a note under section 861 of this title.

Puspan. L. 113–295, div. A, title II, § 221(a)(8)(A)(ii), Dec. 19, 2014, 128 Stat. 4038, provided that: “The amendment made by clause (i) striking subsection (f) of section 53 of the Internal Revenue Code of 1986 shall not be construed to allow any tax abated by reason of section 53(f)(1) of such Code (as in effect before such amendment) to be included in the amount determined under section 53(span)(1) of such Code.”

Puspan. L. 116–136, div. A, title II, § 2305(d), Mar. 27, 2020, 134 Stat. 357, provided that: