§ 56. Adjustments in computing alternative minimum taxable income

§ 56. Adjustments in computing alternative minimum taxable income

(a) Adjustments applicable to all taxpayers In determining the amount of the alternative minimum taxable income for any taxable year the following treatment shall apply (in lieu of the treatment applicable for purposes of computing the regular tax):

(1) Depreciation

(A) In general

The preceding sentence shall not apply to any section 1250 property (as defined in section 1250(c)) (and the straight line method shall be used for such section 1250 property) or to any other property if the depreciation deduction determined under section 168 with respect to such other property for purposes of the regular tax is determined by using the straight line method.

(i) Property other than certain personal property Except as provided in clause (ii), the depreciation deduction allowable under section 167 with respect to any tangible property placed in service after December 31, 1986, shall be determined under the alternative system of section 168(g). In the case of property placed in service after December 31, 1998, the preceding sentence shall not apply but clause (ii) shall continue to apply.

(ii) 150-percent declining balance method for certain property The method of depreciation used shall be—

(I) the 150 percent declining balance method,

(II) switching to the straight line method for the 1st taxable year for which using the straight line method with respect to the adjusted basis as of the beginning of the year will yield a higher allowance.

(B) Exception for certain property This paragraph shall not apply to property described in paragraph (1), (2), (3), or (4) of section 168(f), or in section 168(e)(3)(C)(iv).

(C) Coordination with transitional rules

(i) In general This paragraph shall not apply to property placed in service after December 31, 1986, to which the amendments made by section 201 of the Tax Reform Act of 1986 do not apply by reason of section 203, 204, or 251(d) of such Act.

(ii) Treatment of certain property placed in service before 1987 This paragraph shall apply to any property to which the amendments made by section 201 of the Tax Reform Act of 1986 apply by reason of an election under section 203(a)(1)(B) of such Act without regard to the requirement of subparagraph (A) that the property be placed in service after December 31, 1986.

(D) Normalization rules With respect to public utility property described in section 168(i)(10), the Secretary shall prescribe the requirements of a normalization method of accounting for this section.

(2) Mining exploration and development costs

(A) In general With respect to each mine or other natural deposit (other than an oil, gas, or geothermal well) of the taxpayer, the amount allowable as a deduction under section 616(a) or 617(a) (determined without regard to section 291(b)) in computing the regular tax for costs paid or incurred after December 31, 1986, shall be capitalized and amortized ratably over the 10-year period beginning with the taxable year in which the expenditures were made.

(B) Loss allowed If a loss is sustained with respect to any property described in subparagraph (A), a deduction shall be allowed for the expenditures described in subparagraph (A) for the taxable year in which such loss is sustained in an amount equal to the lesser of—

(i) the amount allowable under section 165(a) for the expenditures if they had remained capitalized, or

(ii) the amount of such expenditures which have not previously been amortized under subparagraph (A).

(3) Treatment of certain long-term contracts In the case of any long-term contract entered into by the taxpayer on or after March 1, 1986, the taxable income from such contract shall be determined under the percentage of completion method of accounting (as modified by section 460(b)). For purposes of the preceding sentence, in the case of a contract described in section 460(e)(1), the percentage of the contract completed shall be determined under section 460(b)(1) by using the simplified procedures for allocation of costs prescribed under section 460(b)(3). The first sentence of this paragraph shall not apply to any residential construction contract (as defined in section 460(e)(4)).

(4) Alternative tax net operating loss deduction The alternative tax net operating loss deduction shall be allowed in lieu of the net operating loss deduction allowed under section 172.

(5) Pollution control facilities In the case of any certified pollution control facility placed in service after December 31, 1986, the deduction allowable under section 169 (without regard to section 291) shall be determined under the alternative system of section 168(g). In the case of such a facility placed in service after December 31, 1998, such deduction shall be determined under section 168 using the straight line method.

(6) Adjusted basis The adjusted basis of any property to which paragraph (1) or (5) applies (or with respect to which there are any expenditures to which paragraph (2) or subsection (b)(2) applies) shall be determined on the basis of the treatment prescribed in paragraph (1), (2), or (5), or subsection (b)(2), whichever applies.

(7) Section 87 not applicable Section 87 (relating to alcohol fuel credit) shall not apply.

(b) Adjustments applicable to individuals In determining the amount of the alternative minimum taxable income of any taxpayer (other than a corporation), the following treatment shall apply (in lieu of the treatment applicable for purposes of computing the regular tax):

(1) Limitation on deductions

(A) In general No deduction shall be allowed—

Clause (ii) shall not apply to any amount allowable in computing adjusted gross income.

(i) for any miscellaneous itemized deduction (as defined in section 67(b)), or

(ii) for any taxes described in paragraph (1), (2), or (3) of section 164(a) or clause (ii) of section 164(b)(5)(A).

(B) Interest In determining the amount allowable as a deduction for interest, subsections (d) and (h) of section 163 shall apply, except that—

(i) in lieu of the exception under section 163(h)(2)(D), the term “personal interest” shall not include any qualified housing interest (as defined in subsection (e)),

(ii) interest on any specified private activity bond (and any amount treated as interest on a specified private activity bond under section 57(a)(5)(B)), and any deduction referred to in section 57(a)(5)(A), shall be treated as includible in gross income (or as deductible) for purposes of applying section 163(d),

(iii) in lieu of the exception under section 163(d)(3)(B)(i), the term “investment interest” shall not include any qualified housing interest (as defined in subsection (e)), and

(iv) the adjustments of this section and sections 57 and 58 shall apply in determining net investment income under section 163(d).

(C) Treatment of certain recoveries No recovery of any tax to which subparagraph (A)(ii) applied shall be included in gross income for purposes of determining alternative minimum taxable income.

(D) Standard deduction and deduction for personal exemptions not allowed The standard deduction under section 63(c), the deduction for personal exemptions under section 151, and the deduction under section 642(b) shall not be allowed.

(E) Section 68 not applicable Section 68 shall not apply.

(2) Circulation and research and experimental expenditures

(A) In general The amount allowable as a deduction under section 173, 174(a), or 174A(a) in computing the regular tax for amounts paid or incurred after December 31, 1986, shall be capitalized and—

(i) in the case of circulation expenditures described in section 173, shall be amortized ratably over the 3-year period beginning with the taxable year in which the expenditures were made, or

(ii) in the case of foreign research or experimental expenditures described in section 174(a) and domestic research or experimental expenditures in section 174A(a), shall be amortized ratably over the 10-year period beginning with the taxable year in which the expenditures were made.

(B) Loss allowed If a loss is sustained with respect to any property described in subparagraph (A), a deduction shall be allowed for the expenditures described in subparagraph (A) for the taxable year in which such loss is sustained in an amount equal to the lesser of—

(i) the amount allowable under section 165(a) for the expenditures if they had remained capitalized, or

(ii) the amount of such expenditures which have not previously been amortized under subparagraph (A).

(C) Exception for certain research and experimental expenditures If the taxpayer materially participates (within the meaning of section 469(h)) in an activity, this paragraph shall not apply to any amount allowable as a deduction under section 174(a) or 174A(a) for expenditures paid or incurred in connection with such activity.

(3) Treatment of incentive stock options Section 421 shall not apply to the transfer of stock acquired pursuant to the exercise of an incentive stock option (as defined in section 422). Section 422(c)(2) shall apply in any case where the disposition and the inclusion for purposes of this part are within the same taxable year and such section shall not apply in any other case. The adjusted basis of any stock so acquired shall be determined on the basis of the treatment prescribed by this paragraph.

[(c) Repealed. Pub. L. 115–97, title I, § 12001(b)(8)(A), Dec. 22, 2017, 131 Stat. 2093]

(d) Alternative tax net operating loss deduction defined

(1) In general For purposes of subsection (a)(4), the term “alternative tax net operating loss deduction” means the net operating loss deduction allowable for the taxable year under section 172, except that—

(A) the amount of such deduction shall not exceed the sum of—

(i) the lesser of—

(I) the amount of such deduction attributable to net operating losses (other than the deduction described in clause (ii)(I)), or

(II) 90 percent of alternative minimum taxable income determined without regard to such deduction and the deduction under section 199,11 See References in Text note below. plus

(ii) the lesser of—

(I) the amount of such deduction attributable to an applicable net operating loss with respect to which an election is made under section 172(b)(1)(H) (as in effect before its repeal by the Tax Increase Prevention Act of 2014), or

(II) alternative minimum taxable income determined without regard to such deduction and the deduction under section 199 ^1 reduced by the amount determined under clause (i), and

(B) in determining the amount of such deduction—

(i) the net operating loss (within the meaning of section 172(c)) for any loss year shall be adjusted as provided in paragraph (2), and

(ii) appropriate adjustments in the application of section 172(b)(2) shall be made to take into account the limitation of subparagraph (A).

(2) Adjustments to net operating loss computation

(A) Post-1986 loss years In the case of a loss year beginning after December 31, 1986, the net operating loss for such year under section 172(c) shall—

An item of tax preference shall be taken into account under clause (ii) only to the extent such item increased the amount of the net operating loss for the taxable year under section 172(c).

(i) be determined with the adjustments provided in this section and section 58, and

(ii) be reduced by the items of tax preference determined under section 57 for such year.

(B) Pre-1987 years In the case of loss years beginning before January 1, 1987, the amount of the net operating loss which may be carried over to taxable years beginning after December 31, 1986, for purposes of paragraph (2), shall be equal to the amount which may be carried from the loss year to the first taxable year of the taxpayer beginning after December 31, 1986.

(e) Qualified housing interest For purposes of this part—

(1) In general The term “qualified housing interest” means interest which is qualified residence interest (as defined in section 163(h)(3)) and is paid or accrued during the taxable year on indebtedness which is incurred in acquiring, constructing, or substantially improving any property which—

Such term also includes interest on any indebtedness resulting from the refinancing of indebtedness meeting the requirements of the preceding sentence; but only to the extent that the amount of the indebtedness resulting from such refinancing does not exceed the amount of the refinanced indebtedness immediately before the refinancing.

(A) is the principal residence (within the meaning of section 121) of the taxpayer at the time such interest accrues, or

(B) is a qualified dwelling which is a qualified residence (within the meaning of section 163(h)(5)).

(2) Qualified dwelling The term “qualified dwelling” means any—

including all structures or other property appurtenant thereto.

(A) house,

(B) apartment,

(C) condominium, or

(D) mobile home not used on a transient basis (within the meaning of section 7701(a)(19)(C)(v)),

(3) Special rule for indebtedness incurred before July 1, 1982 The term “qualified housing interest” includes interest which is qualified residence interest (as defined in section 163(h)(3)) and is paid or accrued on indebtedness which—

(A) was incurred by the taxpayer before July 1, 1982, and

(B) is secured by property which, at the time such indebtedness was incurred, was—

(i) the principal residence (within the meaning of section 121) of the taxpayer, or

(ii) a qualified dwelling used by the taxpayer (or any member of his family (within the meaning of section 267(c)(4))).

(Added Pub. L. 99–514, title VII, § 701(a), Oct. 22, 1986, 100 Stat. 2322; amended Pub. L. 100–203, title X, §§ 10202(d), 10243(a), Dec. 22, 1987, 101 Stat. 1330–392, 1330–423; Pub. L. 100–647, title I, §§ 1002(a)(12), 1007(b)(1)–(14)(A), (15)–(19), title II, §§ 2001(c)(3)(A), 2004(b)(2), (3), title V, § 5041(b)(4), title VI, §§ 6079(a)(1), 6303(a), Nov. 10, 1988, 102 Stat. 3355, 3428–3432, 3594, 3599, 3674, 3709, 3755; Pub. L. 101–239, title VII, §§ 7205(b), 7611(a)–(f)(4), 7612(c)(1), (d)(1), 7811(d)(3), 7815(e)(2), (4), Dec. 19, 1989, 103 Stat. 2335, 2371–2374, 2408, 2419; Pub. L. 101–508, title XI, §§ 11103(b), 11301(b), 11531(a), (b)(1), 11704(a)(1), 11801(a)(3), (c)(2)(A)–(C), (9)(G), 11812(b)(4), Nov. 5, 1990, 104 Stat. 1388–406, 1388–449, 1388–488, 1388–490, 1388–518, 1388–520, 1388–522, 1388–523, 1388–526, 1388–535; Pub. L. 102–486, title XIX, § 1915(a)(2), (b)(2), (c)(1), (2), Oct. 24, 1992, 106 Stat. 3023, 3024; Pub. L. 103–66, title XIII, §§ 13115(a), 13171(b), 13227(c), Aug. 10, 1993, 107 Stat. 432, 454, 493; Pub. L. 104–188, title I, §§ 1601(b)(2)(B), (C), 1621(b)(2), 1702(c)(1), (e)(1)(A), (g)(4), (h)(12), 1704(t)(1), (48), Aug. 20, 1996, 110 Stat. 1832, 1833, 1867, 1869, 1870, 1873, 1874, 1887, 1889; Pub. L. 105–34, title III, § 312(d)(1), title IV, §§ 402, 403(a), title XII, § 1212(a), Aug. 5, 1997, 111 Stat. 839, 844, 1000; Pub. L. 105–277, div. J, title IV, § 4006(c)(2), Oct. 21, 1998, 112 Stat. 2681–912; Pub. L. 106–519, § 4(1), Nov. 15, 2000, 114 Stat. 2432; Pub. L. 106–554, § 1(a)(7) [title III, § 314(d)], Dec. 21, 2000, 114 Stat. 2763, 2763A–643; Pub. L. 107–147, title I, § 102(c)(1), title IV, § 417(5), Mar. 9, 2002, 116 Stat. 26, 56; Pub. L. 108–173, title XII, § 1202(b), Dec. 8, 2003, 117 Stat. 2480; Pub. L. 108–311, title IV, § 403(b)(4), Oct. 4, 2004, 118 Stat. 1187; Pub. L. 108–357, title I, §§ 101(b)(4), 102(b), title II, § 248(b)(1), title IV, § 422(b), title VIII, § 835(b)(1), Oct. 22, 2004, 118 Stat. 1423, 1428, 1457, 1519, 1593; Pub. L. 109–58, title XIII, § 1326(d), Aug. 8, 2005, 119 Stat. 1017; Pub. L. 109–135, title IV, § 403(a)(14), (r)(2), Dec. 21, 2005, 119 Stat. 2619, 2628; Pub. L. 109–304, § 17(e)(1), Oct. 6, 2006, 120 Stat. 1707; Pub. L. 110–172, § 11(g)(1), (2), Dec. 29, 2007, 121 Stat. 2489, 2490; Pub. L. 110–289, div. C, title I, § 3022(a)(2), July 30, 2008, 122 Stat. 2894; Pub. L. 110–343, div. C, title VII, §§ 706(b)(3), 708(c), Oct. 3, 2008, 122 Stat. 3922, 3925; Pub. L. 111–5, div. B, title I, §§ 1008(d), 1503(b), Feb. 17, 2009, 123 Stat. 318, 354; Pub. L. 111–92, § 13(b), Nov. 6, 2009, 123 Stat. 2993; Pub. L. 111–148, title IX, § 9013(c), Mar. 23, 2010, 124 Stat. 868; Pub. L. 113–295, div. A, title II, §§ 215(b), 221(a)(9), (25)(B), (30)(C), Dec. 19, 2014, 128 Stat. 4034, 4038, 4040, 4042; Pub. L. 115–97, title I, §§ 11027(b), 12001(b)(7), (8)(A), Dec. 22, 2017, 131 Stat. 2077, 2093; Pub. L. 115–141, div. U, title IV, § 401(b)(7), (8), Mar. 23, 2018, 132 Stat. 1202; Pub. L. 116–94, div. Q, title I, § 103(b), Dec. 20, 2019, 133 Stat. 3228; Pub. L. 119–21, title VII, §§ 70203(d)(1), 70302(b)(3), 70430(b), July 4, 2025, 139 Stat. 179, 192, 239.)

Editorial Notes

References in Text

Section 201 of the Tax Reform Act of 1986, referred to in subsecs. (a)(1)(C) and (g)(4)(A)(ii), is section 201 of Pub. L. 99–514, which amended sections 46, 167, 168, 178, 179, 280F, 291, 312, 465, 467, 514, 751, 1245, 4162, 6111, and 7701 of this title.

Sections 203, 204, and 251(d) of such Act, referred to in subsec. (a)(1)(C), are sections 203, 204, and 251(d) of the Tax Reform Act of 1986, Pub. L. 99–514. Sections 203 and 204 are set out as notes under section 168 of this title. Section 251(d) is set out as a note under section 46 of this title.

Section 199, referred to in subsec. (d)(1)(A)(i)(II), (ii)(II), was repealed by Pub. L. 115–97, title I, § 13305(a), Dec. 22, 2017, 131 Stat. 2126.

Section 172(b)(1)(H) (as in effect before its repeal by the Tax Increase Prevention Act of 2014), referred to subsec. (d)(1)(A)(ii)(I), means subpar. (H) of section 172(b)(1) of this title prior to its repeal by Pub. L. 113–295, div. A, title II, § 221(a)(30)(A)(i), Dec. 19, 2014, 128 Stat. 4041.

The date of the enactment of the Tax Reform Act of 1986, referred to in subsec. (g)(4)(A)(iii), is the date of enactment of Pub. L. 99–514, which was approved Oct. 22, 1986.

The FSC Repeal and Extraterritorial Income Exclusion Act of 2000, referred to in subsec. (g)(4)(C)(ii)(I), is Pub. L. 106–519, Nov. 15, 2000, 114 Stat. 2423. For complete classification of this Act to the Code, see Short Title of 2000 Amendments note set out under section 1 of this title and Tables.

Prior Provisions

A prior section 56, added Pub. L. 91–172, title III, § 301(a), Dec. 30, 1969, 83 Stat. 580; amended Pub. L. 91–614, title V, § 501(a), Dec. 31, 1970, 84 Stat. 1846; Pub. L. 92–178, title VI, § 601(c)(4), (5), Dec. 10, 1971, 85 Stat. 558; Pub. L. 93–406, title II, §§ 2001(g)(2)(D), 2002(g)(4), 2005(c)(7), Sept. 2, 1974, 88 Stat. 957, 968, 991; Pub. L. 94–12, title II, §§ 203(b)(2), (3), 208(d)(2), (3), Mar. 29, 1975, 89 Stat. 30, 35; Pub. L. 94–455, title III, § 301(a), (b), (c)(4)(B), Oct. 4, 1976, 90 Stat. 1549, 1552; Pub. L. 95–30, title II, § 202(d)(2), May 23, 1977, 91 Stat. 148; Pub. L. 95–600, title I, § 141(d), Nov. 6, 1978, 92 Stat. 2794; Pub. L. 95–618, title I, § 101(b)(2), Nov. 9, 1978, 92 Stat. 3179; Pub. L. 96–222, title I, § 101(a)(7)(L)(iii)(IV), Apr. 1, 1980, 94 Stat. 200; Pub. L. 97–34, title III, § 331(c)(2), Aug. 13, 1981, 95 Stat. 293; Pub. L. 97–248, title II, § 201(d)(1), formerly § 201(c)(1), Sept. 3, 1982, 96 Stat. 419, renumbered § 201(d)(1), Pub. L. 97–448, title III, § 306(a)(1)(A)(i), Jan. 12, 1983, 96 Stat. 2400; Pub. L. 98–369, div. A, title IV, § 474(r)(1), July 18, 1984, 98 Stat. 839; Pub. L. 99–514, title XI, § 1171(b)(3), Oct. 22, 1986, 100 Stat. 2513, related to a corporate minimum tax, prior to the general revision of this part by Pub. L. 99–514, § 701(a).

Amendments

2025—Subsec. (a)(3). Pub. L. 119–21, § 70430(b), substituted “any residential construction contract (as defined in section 460(e)(4))” for “any home construction contract (as defined in section 460(e)(6))”.

Subsec. (b)(2)(A). Pub. L. 119–21, § 70302(b)(3)(A)(i), substituted “, 174(a), or 174A(a)” for “or 174(a)” in introductory provisions.

Subsec. (b)(2)(A)(ii). Pub. L. 119–21, § 70302(b)(3)(A)(ii), substituted “foreign research or experimental expenditures described in section 174(a) and domestic research or experimental expenditures in section 174A(a)” for “research and experimental expenditures described in section 174(a)”.

Subsec. (b)(2)(C). Pub. L. 119–21, § 70302(b)(3)(B), inserted “or 174A(a)” after “174(a)”.

Subsec. (e)(1)(B). Pub. L. 119–21, § 70203(d)(1), substituted “section 163(h)(5)” for “section 163(h)(4)”.

2019—Subsec. (b)(1)(B) to (F). Pub. L. 116–94 redesignated subpars. (C) to (F) as (B) to (E), respectively, and struck out former subpar. (B). Prior to amendment, text of subpar. (B) read as follows: “In determining the amount allowable as a deduction under section 213, subsection (a) of section 213 shall be applied without regard to subsection (f) of such section. This subparagraph shall not apply to taxable years beginning after December 31, 2016, and ending before January 1, 2019”.

2018—Subsec. (b)(1)(E). Pub. L. 115–141, § 401(b)(7), struck out at end “The preceding sentence shall not apply to so much of the standard deduction as is determined under subparagraphs (D) and (E) of section 63(c)(1).”

Subsec. (d)(1)(A)(ii)(I). Pub. L. 115–141, § 401(b)(8), inserted “(as in effect before its repeal by the Tax Increase Prevention Act of 2014)” after “section 172(b)(1)(H)”.

2017—Subsec. (b)(1)(B). Pub. L. 115–97, § 11027(b), inserted at end “This subparagraph shall not apply to taxable years beginning after December 31, 2016, and ending before January 1, 2019”.

Subsec. (b)(2)(C), (D). Pub. L. 115–97, § 12001(b)(7), redesignated subpar. (D) as (C) and struck out former subpar. (C). Prior to amendment, text of subpar. (C) read as follows: “In the case of circulation expenditures described in section 173, the adjustments provided in this paragraph shall apply also to a personal holding company (as defined in section 542).”

Subsec. (c). Pub. L. 115–97, § 12001(b)(8)(A), struck out subsec. (c) which related to adjustments applicable to corporations.

Subsec. (g). Pub. L. 115–97, § 12001(b)(8)(A), struck out subsec. (g) which related to adjustments based on adjusted current earnings.

2014—Subsec. (b)(1)(C)(ii) to (v). Pub. L. 113–295, § 221(a)(25)(B), redesignated cls. (iii) to (v) as (ii) to (iv), respectively, and struck out former cl. (ii) which read as follows: “sections 163(d)(6) and 163(h)(5) (relating to phase-ins) shall not apply,”.

Subsec. (d)(3). Pub. L. 113–295, § 221(a)(30)(C), struck out par. (3). Text read as follows: “In the case of a taxpayer which has a qualified disaster loss (as defined by section 172(b)(1)(J)) for the taxable year, paragraph (1) shall be applied by increasing the amount determined under subparagraph (A)(ii)(I) thereof by the sum of the carrybacks and carryovers of such loss.”

Subsec. (g)(4)(C)(iv). Pub. L. 113–295, § 215(b), substituted “an organization to which part I of subchapter T (relating to tax treatment of cooperatives) applies which is engaged in the marketing of agricultural or horticultural products” for “a cooperative described in section 927(a)(4)”. See 2007 Amendment note below.

Subsec. (g)(4)(F)(ii). Pub. L. 113–295, § 221(a)(9), substituted “Clause (i)” for “In the case of any taxable year beginning after December 31, 1992, clause (i)”.

2010—Subsec. (b)(1)(B). Pub. L. 111–148 substituted “without regard to subsection (f) of such section” for “by substituting ‘10 percent’ for ‘7.5 percent’ ”.

2009—Subsec. (b)(1)(E). Pub. L. 111–5, § 1008(d), substituted “subparagraphs (D) and (E) of section 63(c)(1)” for “section 63(c)(1)(D)”.

Subsec. (d)(1)(A)(ii)(I). Pub. L. 111–92 amended subcl. (I) generally. Prior to amendment, subcl. (I) read as follows: “the amount of such deduction attributable to the sum of carrybacks of net operating losses from taxable years ending during 2001 or 2002 and carryovers of net operating losses to taxable years ending during 2001 and 2002, or”.

Subsec. (g)(4)(B)(iv). Pub. L. 111–5, § 1503(b), added cl. (iv).

2008—Subsec. (b)(1)(E). Pub. L. 110–343, § 706(b)(3), inserted at end “The preceding sentence shall not apply to so much of the standard deduction as is determined under section 63(c)(1)(D).”

Subsec. (d)(3). Pub. L. 110–343, § 708(c), added par. (3).

Subsec. (g)(4)(B)(iii). Pub. L. 110–289 added cl. (iii).

2007—Subsec. (g)(4)(C)(ii)(I). Pub. L. 110–172, § 11(g)(1), substituted “921 (as in effect before its repeal by the FSC Repeal and Extraterritorial Income Exclusion Act of 2000)” for “921”.

Subsec. (g)(4)(C)(iv). Pub. L. 110–172, § 11(g)(2), which purported to amend subsec. (g)(4)(C)(iv) of this section, but directed the amendment of section 54(g)(4)(C)(iv) of this title, by substituting “an organization to which part I of subchapter T (relating to tax treatment of cooperatives) applies which is engaged in the marketing of agricultural or horticultural products” for “a cooperative described in section 927(a)(4)”, was not executed in light of the identical amendment made by Pub. L. 113–295, § 215(b), effective as if included in Pub. L. 110–172. See 2014 Amendment note above.

2006—Subsec. (c)(2). Pub. L. 109–304, in introductory provisions, substituted “chapter 535 of title 46, United States Code” for “section 607 of the Merchant Marine Act, 1936 (46 U.S.C. 1177)”, and, in subpars. (A) and (B), substituted “such chapter 535” for “such section 607”.

2005—Subsec. (a)(1)(B). Pub. L. 109–58 inserted “, or in section 168(e)(3)(C)(iv)” before period at end.

Subsec. (b)(1)(A)(ii). Pub. L. 109–135, § 403(r)(2), inserted “or clause (ii) of section 164(b)(5)(A)” before period at end.

Subsec. (d)(1)(A)(i)(II), (ii)(II). Pub. L. 109–135, § 403(a)(14), substituted “such deduction and the deduction under section 199” for “such deduction”.

2004—Subsec. (d)(1)(A)(i)(I). Pub. L. 108–311, § 403(b)(4)(A), struck out “attributable to carryovers” after “other than the deduction”.

Subsec. (d)(1)(A)(ii)(I). Pub. L. 108–311, § 403(b)(4)(B), substituted “from taxable years” for “for taxable years” and “carryovers” for “carryforwards”.

Subsec. (g)(4)(B)(i). Pub. L. 108–357, § 248(b)(1), inserted “or 1357” after “section 139A” in concluding provisions.

Pub. L. 108–357, § 101(b)(4), struck out “114 or” before “139A” in concluding provisions.

Subsec. (g)(4)(C)(v). Pub. L. 108–357, § 102(b), added cl. (v).

Subsec. (g)(4)(C)(vi). Pub. L. 108–357, § 422(b), added cl. (vi).

Subsec. (g)(6). Pub. L. 108–357, § 835(b)(1), substituted “or REMIC” for “REMIC, or FASIT”.

2003—Subsec. (g)(4)(B)(i). Pub. L. 108–173 inserted “or 139A” after “section 114” in concluding provisions.

2002—Subsec. (a)(1)(A)(ii). Pub. L. 107–147, § 417(5), substituted “such section 1250” for “such 1250” in concluding provisions.

Subsec. (d)(1)(A). Pub. L. 107–147, § 102(c)(1), amended subpar. (A) generally. Prior to amendment, subpar. (A) read as follows: “the amount of such deduction shall not exceed 90 percent of alternate minimum taxable income determined without regard to such deduction, and”.

2000—Subsec. (a)(1)(A)(ii). Pub. L. 106–554 inserted “(and the straight line method shall be used for such 1250 property)” before “or to any other property” in concluding provisions.

Subsec. (g)(4)(B)(i). Pub. L. 106–519 inserted “or under section 114” before the period at end of first sentence in concluding provisions.

1998—Subsec. (a)(3). Pub. L. 105–277 substituted “section 460(b)(1)” for “section 460(b)(2)” and “section 460(b)(3)” for “section 460(b)(4)”.

1997—Subsec. (a)(1)(A)(i). Pub. L. 105–34, § 402(a), inserted at end “In the case of property placed in service after December 31, 1998, the preceding sentence shall not apply but clause (ii) shall continue to apply.”

Subsec. (a)(5). Pub. L. 105–34, § 402(b), inserted at end “In the case of such a facility placed in service after December 31, 1998, such deduction shall be determined under section 168 using the straight line method.”

Subsec. (a)(6) to (8). Pub. L. 105–34, § 403(a), redesignated pars. (7) and (8) as (6) and (7), respectively, and struck out former par. (6) which read as follows:

“(6) Installment sales of certain property.—In the case of any disposition after March 1, 1986, of any property described in section 1221(1), income from such disposition shall be determined without regard to the installment method under section 453. This paragraph shall not apply to any disposition with respect to which an election is in effect under section 453(l)(2)(B).”

Subsec. (e)(1)(A), (3)(B)(i). Pub. L. 105–34, § 312(d)(1), substituted “section 121” for “section 1034”.

Subsec. (g)(4)(B)(i). Pub. L. 105–34, § 1212(a), inserted at end of concluding provisions “In the case of any insurance company taxable under section 831(b), this clause shall not apply to any amount not described in section 834(b).”

1996—Subsec. (b)(3). Pub. L. 104–188, § 1702(h)(12), provided that the amendment made by section 11801(c)(9)(G)(ii) of Pub. L. 101–508 shall be applied as if it struck “Section 422A(c)(2)” and inserted “Section 422(c)(2)”. See 1990 Amendment note below.

Subsec. (d)(1)(B)(ii). Pub. L. 101–508, § 1702(e)(1)(A), amended cl. (ii) generally. Prior to amendment, cl. (ii) read as follows: “in the case of taxable years beginning after December 31, 1986, section 172(b)(2) shall be applied by substituting ‘90 percent of alternative minimum taxable income determined without regard to the alternative tax net operating loss deduction’ for ‘taxable income’ each place it appears.”

Subsec. (g)(1), (2)(A). Pub. L. 104–188, § 1704(t)(48), provided that section 11801(c)(2)(B) of Pub. L. 101–508 shall be applied as if “section 56(g)” appeared instead of “section 59(g)”. See 1990 Amendment note below.

Subsec. (g)(4)(C)(ii)(I). Pub. L. 104–188, § 1601(b)(2)(B), inserted “30A,” before “936” and substituted “, (i), and (j)” for “and (i)”.

Subsec. (g)(4)(C)(ii)(II). Pub. L. 104–188, § 1704(t)(1), substituted “of subclause” for “of the subclause”.

Subsec. (g)(4)(C)(iii)(VI). Pub. L. 104–188, § 1601(b)(2)(C), added subcl. (VI).

Subsec. (g)(4)(D)(iii). Pub. L. 104–188, § 1702(g)(4), inserted “, but only with respect to taxable years beginning after December 31, 1989” before period at end.

Subsec. (g)(4)(H) to (J). Pub. L. 104–188, § 1702(c)(1), redesignated subpars. (I) and (J) as (H) and (I), respectively.

Subsec. (g)(6). Pub. L. 104–188, § 1621(b)(2), substituted “REMIC, or FASIT” for “or REMIC”.

1993—Subsec. (g)(4)(A)(i). Pub. L. 103–66, § 13115(a), inserted at end “The preceding sentence shall not apply to any property placed in service after December 31, 1993, and the depreciation deduction with respect to such property shall be determined under the rules of subsection (a)(1)(A).”

Subsec. (g)(4)(C)(ii)(I). Pub. L. 103–66, § 13227(c)(1), substituted “sections 936 (including subsections (a)(4) and (i) thereof) and 921” for “sections 936 and 921”.

Subsec. (g)(4)(C)(iii)(IV), (V). Pub. L. 103–66, § 13227(c)(2), added subcls. (IV) and (V).

Subsec. (g)(4)(J). Pub. L. 103–66, § 13171(b), added subpar. (J).

1992—Subsec. (d)(1)(A). Pub. L. 102–486, § 1915(c)(2), amended subpar. (A) generally. Prior to amendment, subpar. (A) read as follows: “the amount of such deduction shall not exceed the excess (if any) of—

“(i) 90 percent of alternative minimum taxable income determined without regard to such deduction and the deduction under subsection (h), over

“(ii) the deduction under subsection (h), and”.

Subsec. (g)(4)(D)(i). Pub. L. 102–486, § 1915(b)(2), inserted at end “In the case of a taxpayer other than an integrated oil company (as defined in section 291(b)(4)), in the case of any oil or gas well, this clause shall not apply in the case of amounts paid or incurred in taxable years beginning after December 31, 1992.”

Subsec. (g)(4)(F). Pub. L. 102–486, § 1915(a)(2), amended subpar. (F) generally. Prior to amendment, subpar. (F) read as follows: “The allowance for depletion with respect to any property placed in service in a taxable year beginning after 1989 shall be cost depletion determined under section 611.”

Subsec. (h). Pub. L. 102–486, § 1915(c)(1), struck out subsec. (h) which related to adjustment based on energy preferences.

1990—Subsec. (a)(1)(D). Pub. L. 101–508, § 11812(b)(4), substituted “section 168(i)(10)” for “section 167(l)(3)(A)”.

Subsec. (b)(1)(F). Pub. L. 101–508, § 11103(b), added subpar. (F).

Subsec. (b)(3). Pub. L. 101–508, § 11801(c)(9)(G)(i), substituted “section 422” for “section 422A”.

Pub. L. 101–508, § 11801(c)(9)(G)(ii), which directed the substitution of “section 422(c)(2)” for “section 422A(c)(2)”, was executed by substituting “Section 422(c)(2)” for “Section 422A(c)(2)”. See 1996 Amendment note above.

Subsec. (c)(1). Pub. L. 101–508, § 11801(c)(2)(A), substituted heading for one which read: “Adjustment for book income or adjusted current earnings” and amended text generally. Prior to amendment, text read as follows:

“(A) Book income adjustment.—For taxable years beginning in 1987, 1988, and 1989, alternative minimum taxable income shall be adjusted as provided under subsection (f).

“(B) Adjusted current earnings.—For taxable years beginning after 1989, alternative minimum taxable income shall be adjusted as provided under subsection (g).”

Subsec. (d)(1)(A). Pub. L. 101–508, § 11531(b)(1), amended subpar. (A) generally. Prior to amendment, subpar. (A) read as follows: “the amount of such deduction shall not exceed 90 percent of alternative minimum taxable income determined without regard to such deduction, and”.

Subsec. (f). Pub. L. 101–508, § 11801(a)(3), struck out subsec. (f) which related to adjustments for book income of corporations with respect to minimum taxable income, adjusted net book income, adjustments for certain taxes, special rules for related corporations for consolidated returns, treatment of dividends, statements covering different periods, special rule for cooperatives, treatment and limitation of taxes on dividends from 936 corporations, rules for Alaska native corporations, special rules for life insurance companies, exclusion of certain income from transfer of stock for debt, secretarial authority to adjust items, applicable financial statements, earnings and profits used, special rules for more than one statement and exception for certain corporations.

Subsec. (g)(1), (2)(A). Pub. L. 101–508, § 11801(c)(2)(B), which directed that pars. (1) and (2) “of section 59(g) are each amended by striking ‘beginning after 1989’ ”, was executed to pars. (1) and (2)(A) of subsec. (g) of this section after “any taxable year”. See 1996 Amendment note above.

Subsec. (g)(4)(C)(iii). Pub. L. 101–508, § 11801(c)(2)(C), substituted heading for one which read: “Special rule for dividends from section 936 companies” and amended text generally. Prior to amendment, text read as follows: “In the case of any dividend received from a corporation eligible for the credit provided by section 936, rules similar to the rules of subparagraph (F) of subsection (f)(1) shall apply, except that ‘75 percent’ shall be substituted for ‘50 percent’ in clause (i) thereof.”

Subsec. (g)(4)(D)(ii). Pub. L. 101–508, § 11704(a)(1), substituted “years” for “year”.

Subsec. (g)(4)(F) to (H). Pub. L. 101–508, § 11301(b), redesignated subpars. (G) and (H) as (F) and (G), respectively, and struck out former subpar. (F) which provided that acquisition expenses for life insurance companies be capitalized and amortized in accordance with the treatment generally required under generally accepted accounting principles as if this subparagraph applied to all taxable years.

Subsec. (h). Pub. L. 101–508, § 11531(a), added subsec. (h).

1989—Subsec. (a)(3). Pub. L. 101–239, § 7815(e)(2)(B), substituted “The first sentence of this paragraph shall not” for “The preceding sentence shall not”.

Pub. L. 101–239, § 7815(e)(2)(A), made clarifying amendment to directory language of Pub. L. 100–647, § 5041(b)(4), see 1988 Amendment note below.

Pub. L. 101–239, § 7612(c)(1), struck out “with respect to which the requirements of clauses (i) and (ii) of section 460(e)(1)(B) are met” after “section 460(e)(6))”.

Subsec. (b)(2)(D). Pub. L. 101–239, § 7612(d)(1), added subpar. (D).

Subsec. (b)(3). Pub. L. 101–239, § 7811(d)(3), inserted after first sentence “Section 422A(c)(2) shall apply in any case where the disposition and the inclusion for purposes of this part are within the same taxable year and such section shall not apply in any other case.” and substituted “this paragraph” for “the preceding sentence” in last sentence.

Subsec. (g)(4)(A)(i). Pub. L. 101–239, § 7611(a)(1)(A), amended cl. (i) generally. Prior to amendment cl. (i) read as follows: “The depreciation deduction with respect to any property placed in service in a taxable year beginning after 1989 shall be determined under whichever of the following methods yields deductions with a smaller present value:

“(I) The alternative system of section 168(g), or

“(II) The method used for book purposes.”

Subsec. (g)(4)(A)(iii). Pub. L. 101–239, § 7611(a)(2), inserted “and which is placed in service in a taxable year beginning before 1990” after “thereof) applies”.

Subsec. (g)(4)(A)(v) to (vii). Pub. L. 101–239, § 7611(a)(1)(B), redesignated cl. (vii) as (v), and struck out former cl. (v), which related to use of slower method if used for book purposes, and cl. (vi), which related to election to have cumulative limitation.

Subsec. (g)(4)(B)(i). Pub. L. 101–239, § 7611(f)(2), inserted at end “The preceding sentence shall not apply in the case of any amount excluded from gross income under section 108 (or the corresponding provisions of prior law).”

Subsec. (g)(4)(B)(iii). Pub. L. 101–239, § 7611(f)(3), repealed cl. (iii) which read as follows: “In the case of any annuity contract, the income on such contract (as determined under section 72(u)(2)) shall be treated as includible in gross income for such year. The preceding sentence shall not apply to any annuity contract which is held under a plan described in section 403(a) or which is described in section 72(u)(3)(C).”

Subsec. (g)(4)(C)(ii). Pub. L. 101–239, § 7611(d), amended cl. (ii) generally. Prior to amendment, cl. (ii) read as follows: “Clause (i) shall not apply to any deduction allowable under section 243 or 245 for a 100-percent dividend—

“(I) if the corporation receiving such dividend and the corporation paying such dividend could not be members of the same affiliated group under section 1504 by reason of section 1504(b),

“(II) but only to the extent such dividend is attributable to income of the paying corporation which is subject to tax under this chapter (determined after the application of sections 936 and 921).

For purposes of the preceding sentence, the term ‘100 percent dividend’ means any dividend if the percentage used for purposes of determining the amount allowable as a deduction under section 243 or 245 with respect to such dividend is 100 percent.”

Subsec. (g)(4)(C)(iv). Pub. L. 101–239, § 7611(e), added cl. (iv).

Subsec. (g)(4)(D). Pub. L. 101–239, § 7611(b), amended subpar. (D) generally, in cl. (i), substituting provisions directing that adjustments in section 312(n)(2)(A) be applied, for provisions directing adjustments in section 312(n) be applied, with certain exceptions, in cl. (ii), substituting provisions directing that sections 173 and 248 not apply to expenditures paid or incurred in taxable years beginning after December 31, 1989, for material relating to special rule for intangible drilling costs and mineral exploration and development costs, and adding cls. (iii) and (iv).

Subsec. (g)(4)(D)(i)(IV), (V). Pub. L. 101–239, § 7815(e)(4), added subcl. (IV) relating to inapplicability of pars. (6) to (8) and struck out former subcls. (IV) and (V), which read as follows:

“(IV) paragraph (6) shall apply only to contracts entered into on or after March 1, 1986, and

“(V) paragraphs (7) and (8) shall not apply.”

Subsec. (g)(4)(G). Pub. L. 101–239, § 7611(c), amended subpar. (G) generally. Prior to amendment, subpar. (G) read as follows: “The allowances for depletion with respect to any property placed in service in a taxable year beginning after 1989, shall be determined under whichever of the following methods yields deductions with a smaller present value:

“(i) cost depletion determined under section 611, or

“(ii) the method used for book purposes.”

Subsec. (g)(4)(H). Pub. L. 101–239, § 7205(b), added cl. (ii) and concluding provision and struck out former cl. (ii) and concluding provision which read as follows:

“(ii)(I) the aggregate adjusted bases of the assets of such corporation (immediately after the change), exceed

“(II) the value of the stock of such corporation (as determined for purposes of section 382), properly adjusted for liabilities and other relevant items,

then the adjusted basis of each asset of such corporation (as of such time) shall be its proportionate share (determined on the basis of respective fair market values) of the amount referred to in clause (ii)(II).”

Subsec. (g)(4)(H)(i). Pub. L. 101–239, § 7611(f)(1), substituted “in a taxable year beginning after 1989” for “after the date of the enactment of the Tax Reform Act of 1986”.

Subsec. (g)(5)(A). Pub. L. 101–239, § 7611(f)(4), redesignated subpar. (B) as (A) and struck out former subpar. (A) which defined “book purposes”.

Subsec. (g)(5)(B). Pub. L. 101–239, § 7611(f)(4), redesignated subpar. (D) as (B). Former subpar. (B) redesignated (A).

Subsec. (g)(5)(C). Pub. L. 101–239, § 7611(f)(4), struck out subpar. (C) which read as follows: “Present value.—Present value shall be determined as of the time the property is placed in service (or, if later, as of the beginning of the first taxable year beginning after 1989) and under regulations prescribed by the Secretary.”

Subsec. (g)(5)(D). Pub. L. 101–239, § 7611(f)(4), redesignated subpar. (D) as (B).

1988—Subsec. (a)(1)(A)(i). Pub. L. 100–647, § 1007(b)(15), substituted “personal” for “real” in heading.

Subsec. (a)(1)(C)(i). Pub. L. 100–647, § 1002(a)(12), inserted “by reason of section 203, 204, or 251(d) of such Act” after “do not apply”.

Subsec. (a)(3). Pub. L. 100–647, § 5041(b)(4), as amended by Pub. L. 101–239, § 7815(e)(2)(A), inserted at end “The preceding sentence shall not apply to any home construction contract (as defined in section 460(e)(6)) with respect to which the requirements of clauses (i) and (ii) of section 460(e)(1)(B) are met.”

Pub. L. 100–647, § 1007(b)(1), inserted at end “For purposes of the preceding sentence, in the case of a contract described in section 460(e)(1), the percentage of the contract completed shall be determined under section 460(b)(2) by using the simplified procedures for allocation of costs prescribed under section 460(b)(4).”

Subsec. (a)(8). Pub. L. 100–647, § 1007(b)(19), added par. (8).

Subsec. (b)(1). Pub. L. 100–647, § 1007(b)(16), struck out “itemized” after “Limitation on” in heading.

Subsec. (b)(1)(C)(ii). Pub. L. 100–647, § 2004(b)(2), substituted “163(h)(5)” for “163(h)(6)”.

Subsec. (b)(1)(C)(iii). Pub. L. 100–647, § 1007(b)(4), substituted “specified private activity bond” for “specified activity bond” before “under”, and “57(a)(5)(B)” for “56(a)(5)(B)”.

Subsec. (b)(1)(C)(iv), (v). Pub. L. 100–647, § 1007(b)(3), added cls. (iv) and (v).

Subsec. (b)(1)(E). Pub. L. 100–647, § 1007(b)(2), substituted “and deduction for personal exemptions not allowed” for “not allowed” in heading and amended text generally. Prior to amendment, text read as follows: “The standard deduction provided in section 63(c) shall not be allowed.”

Subsec. (b)(3). Pub. L. 100–647, § 1007(b)(14)(A), added par. (3).

Subsec. (c)(1). Pub. L. 100–647, § 1007(b)(13)(A), substituted “adjusted current earnings” for “adjusted earnings and profits” in heading.

Subsec. (c)(1)(B). Pub. L. 100–647, § 1007(b)(13)(B), substituted “Adjusted current earnings” for “Adjusted earnings and profits” in heading.

Subsec. (d)(2)(A). Pub. L. 100–647, § 1007(b)(5), struck out “(other than subsection (a)(6) thereof)” after “for such year” in cl. (ii) and inserted sentence at end providing that an item of tax preference shall be taken into account under clause (ii).

Subsec. (e)(1). Pub. L. 100–647, § 2004(b)(3)(A), substituted “improving” for “rehabilitating” in introductory text.

Pub. L. 100–647, § 1007(b)(6)(A)(i), inserted “qualified residence interest (as defined in section 163(h)(3)) and is” after “interest which is” in introductory text.

Subsec. (e)(1)(A). Pub. L. 100–647, § 2004(b)(3)(B), struck out “or is paid” after “accrues”.

Subsec. (e)(1)(B). Pub. L. 100–647, § 1007(b)(6)(A)(ii), substituted “section 163(h)(4)” for “section 163(h)(3)”.

Subsec. (e)(3). Pub. L. 100–647, § 1007(b)(6)(B), substituted “interest which is qualified residence interest (as defined in section 163(h)(3)) and is paid or accrued” for “interest paid or accrued”.

Subsec. (f)(2)(B). Pub. L. 100–647, § 2001(c)(3)(A), inserted at end “No adjustment shall be made under this subparagraph for the tax imposed by section 59A.”

Pub. L. 100–647, § 1007(b)(7), inserted “(otherwise eligible for the credit provided by section 901 without regard to section 901(j))” after “any such taxes”.

Subsec. (f)(2)(F). Pub. L. 100–647, § 1007(b)(11)(A), substituted “Treatment of taxes on dividends from 936 corporations” for “Treatment of dividends from 936 corporations” in heading and amended text generally, substituting cls. (i) to (iii) for former cls. (i) and (ii).

Subsec. (f)(2)(I), (J). Pub. L. 100–647, § 6303(a), added subpar. (I) and redesignated former subpar. (I) as (J).

Subsec. (f)(3)(A)(iii). Pub. L. 100–647, § 1007(b)(8), inserted “for a substantial nontax purpose” after “an income statement”.

Subsec. (f)(3)(B). Pub. L. 100–647, § 1007(b)(9), substituted “this subsection” for “paragraph (3)(A)” in penultimate sentence.

Subsec. (f)(3)(C). Pub. L. 100–647, § 1007(b)(10), inserted at end “If the taxpayer has 2 or more statements described in the clause (or subclause) with the lowest number designation, the applicable financial statement shall be the one of such statements specified in regulations.”

Subsec. (g)(4)(A)(vi), (vii). Pub. L. 100–647, § 1007(b)(17), added cls. (vi) and (vii).

Subsec. (g)(4)(B)(iii). Pub. L. 100–647, § 6079(a)(1), amended last sentence generally, inserting “which is” after “any annuity contract” and “or which is described in section 72(u)(3)(C)” after “in section 403(a)”.

Pub. L. 100–647, § 1007(b)(12), inserted at end “The preceding sentence shall not apply to any annuity contract held under a plan described in section 403(a).”

Subsec. (g)(4)(C)(iii). Pub. L. 100–647, § 1007(b)(11)(B), substituted “clause (i)” for “clause (ii)(I)”.

Subsec. (g)(4)(I). Pub. L. 100–647, § 1007(b)(18), added subpar. (I).

1987—Subsec. (a)(6). Pub. L. 100–203, § 10202(d), amended par. (6) generally. Prior to amendment, par. (6) read as follows: “In the case of any—

“(A) disposition after March 1, 1986, of property described in section 1221(1), or

“(B) other disposition if an obligation arising from such disposition would be an applicable installment obligation (as defined in section 453C(e)) to which section 453C applies,

income from such disposition shall be determined without regard to the installment method under section 453 or 453A and all payments to be received for the disposition shall be deemed received in the taxable year of the disposition. This paragraph shall not apply to any disposition with respect to which an election is in effect under section 453C(e)(4).”

Subsec. (f)(2)(H), (I). Pub. L. 100–203, § 10243(a), added subpar. (H) and redesignated former subpar. (H) as (I).

Statutory Notes and Related Subsidiaries

Effective Date of 2025 Amendment

Pub. L. 119–21, title VII, § 70203(e), July 4, 2025, 139 Stat. 179, provided that: “The amendments made by this section [enacting section 6050AA of this title and amending this section and sections 63, 163, and 6724 of this title] shall apply to indebtedness incurred after December 31, 2024.”

Amendment by section 70302(b)(3) of Pub. L. 119–21 applicable to amounts paid or incurred in taxable years beginning after Dec. 31, 2024, subject to election for retroactive application by certain small businesses and election to deduct certain unamortized amounts paid or incurred in taxable years beginning before Jan. 1, 2025, see section 70302(e), (f) of Pub. L. 119–21, set out as an Effective Date note under section 174A of this title.

Pub. L. 119–21, title VII, § 70430(c), July 4, 2025, 139 Stat. 240, provided that: “The amendments made by this section [amending this section and section 460 of this title] shall apply to contracts entered into in taxable years beginning after the date of the enactment of this Act [July 4, 2025].”

Effective Date of 2019 Amendment

Pub. L. 116–94, div. Q, title I, § 103(c), Dec. 20, 2019, 133 Stat. 3228, provided that: “The amendments made by this section [amending this section and section 213 of this title] shall apply to taxable years ending after December 31, 2018.”

Effective Date of 2017 Amendment

Pub. L. 115–97, title I, § 11027(c), Dec. 22, 2017, 131 Stat. 2077, provided that: “The amendment made by this section [amending this section and section 213 of this title] shall apply to taxable years beginning after December 31, 2016.”

Amendment by section 12001(b)(7), (8)(A) of Pub. L. 115–97 applicable to taxable years beginning after Dec. 31, 2017, see section 12001(c) of Pub. L. 115–97, set out as a note under section 11 of this title.

Effective Date of 2014 Amendment

Pub. L. 113–295, div. A, title II, § 215(c), Dec. 19, 2014, 128 Stat. 4034, provided that: “The amendments made by this section [amending this section and section 911 of this title] shall take effect as if included in the provisions of the Tax Technical Corrections Act of 2007 [Pub. L. 110–172] to which they relate.”

Amendment by section 221(a)(9), (25)(B), (30)(C) of Pub. L. 113–295 effective Dec. 19, 2014, subject to a savings provision, see section 221(b) of Pub. L. 113–295, set out as a note under section 1 of this title.

Effective Date of 2010 Amendment

Pub. L. 111–148, title IX, § 9013(d), Mar. 23, 2010, 124 Stat. 868, provided that: “The amendments made by this section [amending this section and section 213 of this title] shall apply to taxable years beginning after December 31, 2012.”

Effective Date of 2009 Amendment

Pub. L. 111–92, § 13(e), (f), Nov. 6, 2009, 123 Stat. 2994, 2995, as amended by Pub. L. 113–295, div. A, title II, § 220(bb), Dec. 19, 2014, 128 Stat. 4037, provided that: “(e) Effective Dates.—“(1) In general.—Except as otherwise provided in this subsection, the amendments made by this section [amending this section and sections 172 and 810 of this title] shall apply to net operating losses arising in taxable years ending after December 31, 2007. “(2) Alternative tax net operating loss deduction.—The amendment made by subsection (b) [amending this section] shall apply to taxable years ending after December 31, 2002. “(3) Loss from operations of life insurance companies.—The amendment made by subsection (c) [amending section 810 of this title] shall apply to losses from operations arising in taxable years ending after December 31, 2007. “(4) Transitional rule.—In the case of any net operating loss (or, in the case of a life insurance company, any loss from operations) for a taxable year ending before the date of the enactment of this Act [Nov. 6, 2009]—“(A) any election made under section 172(b)(3) or [former] 810(b)(3) of the Internal Revenue Code of 1986 with respect to such loss may (notwithstanding such section) be revoked before the due date (including extension of time) for filing the return for the taxpayer’s last taxable year beginning in 2009, and “(B) any application under section 6411(a) of such Code with respect to such loss shall be treated as timely filed if filed before such due date. “(f) Exception for TARP Recipients.—The amendments made by this section [amending this section and sections 172 and 810 of this title] shall not apply to—“(1) any taxpayer if—“(A) the Federal Government acquired before the date of the enactment of this Act [Nov. 6, 2009] an equity interest in the taxpayer pursuant to the Emergency Economic Stabilization Act of 2008 [div. A of Pub. L. 110–343, see Tables for classification], “(B) the Federal Government acquired before such date of enactment any warrant (or other right) to acquire any equity interest with respect to the taxpayer pursuant to the Emergency Economic Stabilization Act of 2008, or “(C) such taxpayer receives after such date of enactment funds from the Federal Government in exchange for an interest described in subparagraph (A) or (B) pursuant to a program established under title I of division A of the Emergency Economic Stabilization Act of 2008 [see Tables for classification] (unless such taxpayer is a financial institution (as defined in section 3 of such Act [12 U.S.C. 5202]) and the funds are received pursuant to a program established by the Secretary of the Treasury for the stated purpose of increasing the availability of credit to small businesses using funding made available under such Act [Pub. L. 110–343, see Tables for classification]), or “(2) the Federal National Mortgage Association and the Federal Home Loan Mortgage Corporation, and “(3) any taxpayer which at any time in 2008 or 2009 was or is a member of the same affiliated group (as defined in section 1504 of the Internal Revenue Code of 1986, determined without regard to subsection (b) thereof) as a taxpayer described in paragraph (1) or (2).”

Pub. L. 111–5, div. B, title I, § 1008(e), Feb. 17, 2009, 123 Stat. 318, provided that: “The amendments made by this section [amending this section and sections 63 and 164 of this title] shall apply to purchases on or after the date of the enactment of this Act [Feb. 17, 2009] in taxable years ending after such date.”

Pub. L. 111–5, div. B, title I, § 1503(c), Feb. 17, 2009, 123 Stat. 355, provided that: “The amendments made by this section [amending this section and section 57 of this title] shall apply to obligations issued after December 31, 2008.”

Effective Date of 2008 Amendment

Pub. L. 110–343, div. C, title VII, § 706(d), Oct. 3, 2008, 122 Stat. 3923, provided that: “(1) In general.—Except as provided by paragraph (2), the amendments made by this section [amending this section and sections 63, 139, 165, 172, 1033, and 7508A of this title] shall apply to disasters declared in taxable years beginning after December 31, 2007. “(2) Increase in limitation on individual loss per casualty.—The amendment made by subsection (c) [amending section 165 of this title] shall apply to taxable years beginning after December 31, 2008.”

Pub. L. 110–343, div. C, title VII, § 708(e), Oct. 3, 2008, 122 Stat. 3925, provided that: “The amendments made by this section [amending this section and section 172 of this title] shall apply to losses arising in taxable years beginning after December 31, 2007, in connection with disasters declared after such date.”

Pub. L. 110–289, div. C, title I, § 3022(d)(1), July 30, 2008, 122 Stat. 2894, provided that: “The amendments made by subsection (a) [amending this section and section 57 of this title] shall apply to bonds issued after the date of the enactment of this Act [July 30, 2008].”

Effective Date of 2005 Amendments

Amendment by Pub. L. 109–135 effective as if included in the provision of the American Jobs Creation Act of 2004, Pub. L. 108–357, to which such amendment relates, see section 403(nn) of Pub. L. 109–135, set out as a note under section 26 of this title.

Pub. L. 109–58, title XIII, § 1326(e), Aug. 8, 2005, 119 Stat. 1017, provided that: “(1) In general.—The amendments made by this section [amending this section and section 168 of this title] shall apply to property placed in service after April 11, 2005. “(2) Exception.—The amendments made by this section [amending this section and section 168 of this title] shall not apply to any property with respect to which the taxpayer or a related party has entered into a binding contract for the construction thereof on or before April 11, 2005, or, in the case of self-constructed property, has started construction on or before such date.”

Effective Date of 2004 Amendments

Pub. L. 108–357, title I, § 101(c), Oct. 22, 2004, 118 Stat. 1423, provided that: “The amendments made by this section [amending this section and sections 275, 864, 903, and 999 of this title and repealing sections 114 and 941 to 943 of this title] shall apply to transactions after December 31, 2004.”

Pub. L. 108–357, title I, § 102(e), Oct. 22, 2004, 118 Stat. 1429, as amended by Pub. L. 109–135, title IV, § 403(a)(19), Dec. 21, 2005, 119 Stat. 2619, provided that: “(1) In general.—The amendments made by this section [enacting section 199 of this title and amending this section and sections 86, 135, 137, 219, 221, 222, 246, 469, 613, and 1402 of this title] shall apply to taxable years beginning after December 31, 2004. “(2) Application to pass-thru entities, etc.—In determining the deduction under [former] section 199 of the Internal Revenue Code of 1986 (as added by this section), items arising from a taxable year of a partnership, S corporation, estate, or trust beginning before January 1, 2005, shall not be taken into account for purposes of subsection (d)(1) of such section.”

Pub. L. 108–357, title II, § 248(c), Oct. 22, 2004, 118 Stat. 1457, provided that: “The amendments made by this section [enacting subchapter R of this chapter and amending this section] shall apply to taxable years beginning after the date of the enactment of this Act [Oct. 22, 2004].”

Pub. L. 108–357, title IV, § 422(d), Oct. 22, 2004, 118 Stat. 1519, provided that: “The amendments made by this section [enacting section 965 of this title and amending this section] shall apply to taxable years ending on or after the date of the enactment of this Act [Oct. 22, 2004].”

Pub. L. 108–357, title VIII, § 835(c), Oct. 22, 2004, 118 Stat. 1594, provided that: “(1) In general.—Except as provided in paragraph (2), the amendments made by this section [amending this section and sections 382, 582, 856, 860G, 1202, and 7701 of this title and repealing part V of subchapter M of this chapter] shall take effect on January 1, 2005. “(2) Exception for existing fasits.—Paragraph (1) shall not apply to any FASIT in existence on the date of the enactment of this Act [Oct. 22, 2004] to the extent that regular interests issued by the FASIT before such date continue to remain outstanding in accordance with the original terms of issuance.”

Pub. L. 108–311, title IV, § 403(f), Oct. 4, 2004, 118 Stat. 1188, provided that: “The amendments made by this section [amending this section, sections 137, 168, 172, and 1400L of this title, section 1306 of Title 29, Labor, and provisions set out as a note under this section] shall take effect as if included in the provisions of the Job Creation and Worker Assistance Act of 2002 [Pub. L. 107–147] to which they relate.”

Effective Date of 2003 Amendment

Pub. L. 108–173, title XII, § 1202(d), Dec. 8, 2003, 117 Stat. 2480, provided that: “The amendments made by this section [enacting section 139A of this title and amending this section] shall apply to taxable years ending after the date of the enactment of this Act [Dec. 8, 2003].”

Effective Date of 2002 Amendment

Pub. L. 107–147, title I, § 102(c)(2), Mar. 9, 2002, 116 Stat. 26, as amended Pub. L. 108–311, title IV, § 403(b)(3), Oct. 4, 2004, 118 Stat. 1187, provided that: “The amendment made by this subsection [amending this section] shall apply to taxable years ending after December 31, 1990.”

Effective Date of 2000 Amendments

Pub. L. 106–554, § 1(a)(7) [title III, § 314(g)], Dec. 21, 2000, 114 Stat. 2763, 2763A–643, provided that: “The amendments made by this section [amending this section and sections 403, 414, 415, 3405, 6211 and 7436 of this title and provisions set out as a note under section 1 of this title] shall take effect as if included in the provisions of the Taxpayer Relief [Act] of 1997 [Pub. L. 105–34] to which they relate.”