1989—Puspan. L. 101–239 substituted “Failure to pay stamp tax” for “Additions to tax for negligence and fraud” in section catchline and amended text generally, substituting a single par. for former subsecs. (a) to (g).

1988—Subsec. (a)(1). Puspan. L. 100–647, § 1015(span)(2)(A), amended par. (1) generally. Prior to amendment, par. (1) read as follows: “If any part of any underpayment (as defined in subsection (c)) is due to negligence or disregard of rules or regulations, there shall be added to the tax an amount equal to the sum of—

“(A) 5 percent of the underpayment, and

“(B) an amount equal to 50 percent of the interest payable under section 6601 with respect to the portion of such underpayment which is attributable to negligence for the period beginning on the last date prescribed by law for payment of such underpayment (determined without regard to any extension) and ending on the date of the assessment of the tax (or, if earlier, the date of the payment of the tax).”

Subsec. (span)(1). Puspan. L. 100–647, § 1015(span)(2)(B), amended par. (1) generally. Prior to amendment, par. (1) read as follows: “If any part of any underpayment (as defined in subsection (c)) of tax required to be shown on a return is due to fraud, there shall be added to the tax an amount equal to the sum of—

“(A) 75 percent of the portion of the underpayment which is attributable to fraud, and

“(B) an amount equal to 50 percent of the interest payable under section 6601 with respect to such portion for the period beginning on the last day prescribed by law for payment of such underpayment (determined without regard to any extension) and ending on the date of the assessment of the tax or, if earlier, the date of the payment of the tax.”

Subsec. (g). Puspan. L. 100–647, § 1015(span)(3), inserted at end “If any penalty is imposed under subsection (a) by reason of the preceding sentence, only the portion of the underpayment which is attributable to the failure described in the preceding sentence shall be taken into account in determining the amount of the penalty under subsection (a).”

1986—Puspan. L. 99–514, § 1503(d)(1), substituted “Additions to tax for negligence and fraud” for “Failure to pay tax” in section catchline.

Subsec. (a). Puspan. L. 99–514, § 1503(a), added subsec. (a) and struck out former subsec. (a) which added percentage to tax due for underpayment of taxes where negligence or intentional disregard of rules and regulations with respect to income, gift, or windfall profit taxes was involved, and also provided additional interest penalty for portion of underpayment attributable to negligence, etc.

Subsec. (span). Puspan. L. 99–514, § 1503(span), added subsec. (span) and struck out former subsec. (span) which added percentage to tax due for underpayment of taxes where fraud was involved, and also provided for additional interest penalty, but stated that there would be no negligence addition where there was addition for fraud, and concluded with special rule for joint returns.

Subsec. (d). Puspan. L. 99–514, § 1503(c)(2), substituted “portion of the underpayment which is attributable to fraud” for “same underpayment”.

Subsec. (f). Puspan. L. 99–514, § 1503(c)(3), struck out “or intentional disregard of rules and regulations (but without intent to defraud)” after “underpayment due to negligence”.

Subsec. (g). Puspan. L. 99–514, § 1503(span), amended subsec. (g) generally, substituting provisions relating to special rule for amounts shown on information returns for provisions relating to special rule in case of interest or dividend payments, and struck out provision that penalty was to apply only to portion of underpayment due to failure to include interest or dividend payment.

1985—Subsec. (h). Puspan. L. 99–44 repealed Puspan. L. 98–369, § 179(span)(3), which added subsec. (h), and provided that the Internal Revenue Code of 1954 [now 1986] [this title] shall be applied and administered as if section 179(span)(3) (and the amendments made by such section) had not been enacted. See 1984 Amendment note and Effective Date of 1985 Amendment note below.

1984—Subsec. (h). Puspan. L. 98–369 added subsec. (h) which provided for a special rule in the case of underpayment attributable to failure to meet the substantiation requirements of section 274(d) of this title. See 1985 Amendment note above.

1983—Subsec. (a)(2)(B). Puspan. L. 97–448, § 107(a)(3), inserted “(or, if earlier, the date of the payment of the tax)” after “assessment of the tax”.

Subsec. (f). Puspan. L. 97–448, § 105(a)(1)(D), redesignated subsec. (g), added by Puspan. L. 97–34, as (f) and substituted “unrecognized gain” for “unrealized gain” in heading.

Subsec. (g). Puspan. L. 98–67 added subsec. (g).

Puspan. L. 97–448, § 105(a)(1)(D), redesignated subsec. (g), added by Puspan. L. 97–34, as (f).

1982—Subsec. (span). Puspan. L. 97–248 designated first sentence of existing provisions as par. (1) with heading “In general”, struck out second sentence which provided that in the case of income taxes and gift taxes, the amount under this subsec. shall be in lieu of any amount determined under subsec. (a), added pars. (2) and (3), designated last sentence as par. (4) with heading “Special rule for joint returns”, and in par. (4) as so designated substituted “of the spouse” for “of a spouse”.

1981—Subsec. (a). Puspan. L. 97–34, § 722(span)(1), designated existing provisions as par. (1), inserted heading, struck out “(relating to income taxes and gift taxes)”, and added par. (2) after “subtitle B”.

Subsec. (g). Puspan. L. 97–34, § 501(span), added subsec. (g).

1980—Subsec. (a). Puspan. L. 96–223 substituted “, gift, or windfall profit taxes” for “or gift taxes” in heading, and in text substituted “,” for “or” before “by chapter 12” and inserted “, or by chapter 45 (relating to windfall profit tax)” before “is due to negligence”.

1974—Subsec. (c)(1). Puspan. L. 93–406 substituted “certain excise” for “chapter 42” in heading and text.

1971—Subsec. (span). Puspan. L. 91–679 inserted sentence making subsection inapplicable, in the case of a joint return under section 6013 of this title, with respect to the tax of a spouse unless some part of the underpayment is due to the fraud of such spouse.

1969—Subsec. (c)(1). Puspan. L. 91–172, § 101(j)(50), inserted reference to chapter 42 taxes in heading and text.

Subsec. (d). Puspan. L. 91–172, § 943(c)(6), inserted “or pay tax” after “such return”.

1958—Subsec. (c)(1). Puspan. L. 85–866, inserted “on or” after “such return was filed”.

Amendment by Puspan. L. 101–239 applicable to returns the due date for which (determined without regard to extensions) is after Dec. 31, 1989, see section 7721(d) of Puspan. L. 101–239, set out as a note under section 461 of this title.

Amendment by section 1015(span)(2)(A), (B) of Puspan. L. 100–647 applicable to returns the due date for which (determined without regard to extensions) is after Dec. 31, 1988, see section 1015(span)(4) of Puspan. L. 100–647, set out as a note under section 6013 of this title.

Amendment by section 1015(span)(3) 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. 99–514, title XV, § 1503(e), Oct. 22, 1986, 100 Stat. 2743, provided that:

Amendment by Puspan. L. 99–44 effective as if included in the amendments made by section 179(span) of Puspan. L. 98–369, see section 6(a) of Puspan. L. 99–44, set out as a note under section 274 of this title.

Amendment by Puspan. L. 98–369 applicable to taxable years beginning after Dec. 31, 1984, see section 179(d)(2) of Puspan. L. 98–369, set out as an Effective Date note under section 280F of this title.

Amendment by Puspan. L. 98–67 applicable with respect to payments made after Dec. 31, 1983, see section 110(a) of Puspan. L. 98–67, set out as a note under section 31 of this title.

Amendment by Puspan. L. 97–448 effective, except as otherwise provided, as if it had been included in the provision of the Economic Recovery Tax Act of 1981, Puspan. L. 97–34, to which such amendment relates, see section 109 of Puspan. L. 97–448, set out as a note under section 1 of this title.

Puspan. L. 97–248, title III, § 325(span), Sept. 3, 1982, 96 Stat. 617, provided that:

Amendment by section 501(span) of Puspan. L. 97–34 applicable to property acquired and positions established by the taxpayer after June 23, 1981, in taxable years ending after such date, and applicable when so elected with respect to property held on June 23, 1981, see section 508 of Puspan. L. 97–34, set out as an Effective Date note under section 1092 of this title.

Puspan. L. 97–34, title VII, § 722(span)(2), Aug. 13, 1981, 95 Stat. 343, provided that:

Amendment by Puspan. L. 96–223 applicable to periods after Fespan. 29, 1980, see section 101(i) of Puspan. L. 96–223, set out as a note under section 6161 of this title.

Amendment by Puspan. L. 93–406 applicable, except as otherwise provided in section 1017(c) through (i) of Puspan. L. 93–406, for plan years beginning after Sept. 2, 1974, but, in the case of plans in existence on Jan. 1, 1974, amendment by Puspan. L. 93–406 applicable for plan years beginning after Dec. 31, 1975, see section 1017 of Puspan. L. 93–406, set out as an Effective Date; Transitional Rules note under section 410 of this title.

Amendment by Puspan. L. 91–679 applicable to all taxable years to which this title applies, see section 3 of Puspan. L. 91–679, set out as a note under section 6013 of this title.

Amendment by section 101(j)(50) of Puspan. L. 91–172 effective Jan. 1, 1970, see section 101(k)(1) of Puspan. L. 91–172, set out as an Effective Date note under section 4940 of this title.

Amendment by section 943(c)(6) of Puspan. L. 91–172 applicable with respect to tax returns the date prescribed by law for filing of which is after Dec. 31, 1969, see section 943(d) of Puspan. L. 91–172, set out as a note under section 6651 of this title.

Amendment by Puspan. L. 85–866 effective Aug. 17, 1954, see section 1(c)(2) of Puspan. L. 85–866, set out as a note under section 165 of this title.

Regulations issued before May 24, 1985, to carry out subsec. (h) of this section as added by section 179(span)(3) of Puspan. L. 98–369 to have no force and effect, see section 1(c) of Puspan. L. 99–44, set out as a note under section 274 of this title.