26 U.S. Code § 861 - Income from sources within the United States

2018—Subsec. (a)(2)(A). Pub. L. 115–141 struck out “other than a corporation which has an election in effect under section 936” after “corporation”.

2017—Subsec. (a)(2). Pub. L. 115–97, § 13002(e)(2), substituted “100/65th” for “100/80th” and “100/50th” for “100/70th” in concluding provisions.

Subsec. (a)(2)(B). Pub. L. 115–97, § 13002(e)(1), substituted “100/50th” for “100/70th”.

2010—Subsec. (a)(1). Pub. L. 111–226, § 217(a), redesignated subpars. (B) and (C) as (A) and (B), respectively, and struck out former subpar. (A) which read as follows: “interest from a resident alien individual or domestic corporation, if such individual or corporation meets the 80-percent foreign business requirements of subsection (c)(1),”.

Subsec. (a)(9). Pub. L. 111–240 added par. (9).

Subsecs. (c) to (f). Pub. L. 111–226, § 217(c)(1), redesignated subsecs. (d) to (f) as (c) to (e), respectively, and struck out former subsec. (c) which related to foreign business requirements.

2004—Subsec. (a)(1)(C). Pub. L. 108–357 added subpar. (C).

2001—Subsec. (a)(3). Pub. L. 107–16 struck out “except for purposes of sections 79 and 105 and subchapter D,” after “In addition,” in concluding provisions.

1997—Subsec. (a)(3). Pub. L. 105–34 inserted concluding provisions “In addition, except for purposes of sections 79 and 105 and subchapter D, compensation for labor or services performed in the United States shall not be deemed to be income from sources within the United States if the labor or services are performed by a nonresident alien individual in connection with the individual’s temporary presence in the United States as a regular member of the crew of a foreign vessel engaged in transportation between the United States and a foreign country or a possession of the United States.”

1996—Subsec. (e)(1)(A). Pub. L. 104–188 provided that the amendment made by section 11813(b)(17) of Pub. L. 101–508 shall be applied as if the material stricken by such amendment included the closing parenthesis after “section 48(a)(5)”. See 1990 Amendment note below.

1990—Subsec. (a)(1)(A), (B). Pub. L. 101–508, § 11801(a)(29), (c)(14), inserted “and” at end of subpar. (A), substituted a period for a comma at end of subpar. (B), and struck out subpars. (C) and (D) which read as follows:

“(C) interest on a debt obligation which was part of an issue with respect to which an election has been made under subsection (c) of section 4912 (as in effect before July 1, 1974) and which, when issued (or treated as issued under subsection (c)(2) of such section), had a maturity not exceeding 15 years and, when issued, was purchased by one or more underwriters with a view to distribution through resale, but only with respect to interest attributable to periods after the date of such election, and

“(D) interest on a debt obligation which was part of an issue which—

“(i) was part of an issue outstanding on April 1, 1971,

“(ii) was guaranteed by a United States person,

“(iii) was treated under chapter 41 as a debt obligation of a foreign obligor,

“(iv) as of June 30, 1974, had a maturity of not more than 15 years, and

“(v) when issued, was purchased by one or more underwriters for the purpose of distribution through resale.”

Subsec. (e)(1)(A). Pub. L. 101–508, § 11813(b)(17), which directed the substitution of “which is section 1245 property (as defined in section 1245(a)(3))” for “which is section 38 property (or would be section 38 property but for section 48(a)(5)”, was executed by making the substitution for “which is section 38 property (or would be section 38 property but for section 48(a)(5))”. See 1996 Amendment note above.

Subsec. (e)(2). Pub. L. 101–508, § 11801(c)(6)(C), substituted “all of whose stock is owned by one or more domestic common carriers by railroad” for “referred to in subparagraph (B) of section 184(d)(1)”.

1989—Subsec. (a)(6). Pub. L. 101–239, § 7811(i)(2), substituted “865(i)(1)” for “865(h)(1)”.

Subsec. (e)(1). Pub. L. 101–239, § 7841(d)(9), substituted “section 862(a)” for “section 826(a)” in introductory provisions.

1988—Subsec. (a)(2)(B). Pub. L. 100–647, § 1012(q)(7), substituted “other than income described in section 884(d)(2)” for “other than under section 884(d)(2)” in two places.

Subsec. (a)(2)(C). Pub. L. 100–647, § 1012(q)(15), substituted “section 243(e)” for “section 243(d)”.

Subsec. (a)(6). Pub. L. 100–647, § 1018(u)(39), substituted “inventory property” for “personal property” in heading.

Subsec. (a)(7). Pub. L. 100–647, § 1012(i)(10), amended par. (7) generally. Prior to amendment, par. (7) read as follows: “Amounts received as underwriting income (as defined in section 832(b)(3)) derived from the insurance of United States risks (as defined in section 953(a)).”

Subsec. (c)(1)(B). Pub. L. 100–647, § 1012(g)(3), inserted “or, in the case of a corporation, is attributable to income so derived by a subsidiary of such corporation” after parenthetical in cl. (i), struck out “or chain of subsidiaries of such corporation” after “by a subsidiary” in cl. (ii), and inserted sentence at end defining “subsidiary”.

Subsec. (c)(2)(B)(ii). Pub. L. 100–647, § 1012(i)(14)(B), amended cl. (ii) generally. Prior to amendment, cl. (ii) read as follows: “such section shall be applied by substituting ‘10 percent’ for ‘50 percent’ each place it appears.”

Subsec. (f). Pub. L. 100–647, § 1012(g)(9), added subsec. (f).

1987—Subsec. (a)(2). Pub. L. 100–203, § 10221(d)(4)(B), inserted at end “In the case of any dividend from a 20-percent owned corporation (as defined in section 243(c)(2)), subparagraph (B) shall be applied by substituting ‘100/80th’ for ‘100/70th’.”

Subsec. (a)(2)(B). Pub. L. 100–203, § 10221(d)(4)(A), which directed that subpar. (B) be amended by substituting “100/70th” for “100/85th”, was executed by substituting “100/70th” for “100/85ths” to reflect the probable intent of Congress.

1986—Subsec. (a)(1). Pub. L. 99–514, § 1241(b)(1)(A), substituted “noncorporate residents or domestic corporations” for “residents, corporate or otherwise,” in introductory text.

Subsec. (a)(1)(A). Pub. L. 99–514, § 1214(a)(1), (c)(5)(A), amended subpar. (B) generally and redesignated it as (A). Prior to amendment and redesignation, former subpar. (B) read as follows: “interest received from a resident alien individual or a domestic corporation, when it is shown to the satisfaction of the Secretary that less than 20 percent of the gross income from all sources of such individual or such corporation has been derived from sources within the United States, as determined under the provisions of this part, for the 3-year period ending with the close of the taxable year of such individual or such corporation preceding the payment of such interest, or for such part of such period as may be applicable,”. Former subpar. (A), which read “interest on amounts described in subsection (c) received by a nonresident alien individual or a foreign corporation, if such interest is not effectively connected with the conduct of a trade or business within the United States,”, was struck out.

Subsec. (a)(1)(B). Pub. L. 99–514, § 1241(b)(1)(B), redesignated subpar. (D), as previously redesignated and amended by § 1214(c)(5)(A), (B) of Pub. L. 99–514, as (B) and struck out former subpar. (B) [previously (C)] which read as follows: “interest received from a foreign corporation (other than interest paid or credited by a domestic branch of a foreign corporation, if such branch is engaged in the commercial banking business), when it is shown to the satisfaction of the Secretary that less than 50 percent of the gross income from all sources of such foreign corporation for the 3-year period ending with the close of its taxable year preceding the payment of such interest (or for such part of such period as the corporation has been in existence) was effectively connected with the conduct of a trade or business within the United States,”.

Pub. L. 99–514, § 1214(c)(5)(A), (B), redesignated former subpar. (F) as (D), substituted in cl. (ii), “subparagraph (B) of section 871(i)(3)” for “paragraph (2) of subsection (c)”, and redesignated former subpar. (C) as (B). Former subpar. (B) redesignated (A).

Subsec. (a)(1)(C). Pub. L. 99–514, § 1241(b)(1)(B), redesignated subpar. (E), as previously redesignated by § 1214(c)(5)(A) of Pub. L. 99–514, as (C) and struck out former subpar. (C) [previously (D)] which read as follows: “in the case of interest received from a foreign corporation (other than interest paid or credited by a domestic branch of a foreign corporation, if such branch is engaged in the commercial banking business), 50 percent or more of the gross income of which from all sources for the 3-year period ending with the close of its taxable year preceding the payment of such interest (or for such part of such period as the corporation has been in existence) was effectively connected with the conduct of a trade or business within the United States, an amount of such interest which bears the same ratio to such interest as the gross income of such foreign corporation for such period which was not effectively connected with the conduct of a trade or business within the United States bears to its gross income from all sources,”.

Pub. L. 99–514, § 1214(c)(5)(A), redesignated subpar. (D) as (C). Former subpar. (C) redesignated (B).

Subsec. (a)(1)(D). Pub. L. 99–514, § 1214(c)(5)(A), redesignated subpar. (H) as (F). Pub. L. 99–514, § 1241(b)(1)(B), then redesignated such subpar. (F) as (D). The original subpar. (D) was redesignated (C) and struck out, and the original subpar. (F) was redesignated (D), then (B).

Subsec. (a)(1)(E). Pub. L. 99–514, § 1241(b)(1)(B), redesignated subpar. (E), as previously redesignated by § 1214(c)(5)(A) of Pub. L. 99–514, as (C).

Pub. L. 99–514, § 1214(c)(5)(A), redesignated subpar. (G) as (E) and struck out former subpar. (E) which read as follows: “income derived by a foreign central bank of issue from bankers’ acceptances,”.

Subsec. (a)(1)(F). Pub. L. 99–514, §§ 1214(c)(5)(A), 1241(b)(1)(B), redesignated successively former subpar. (F) as (D) and (B), respectively.

Subsec. (a)(1)(G). Pub. L. 99–514, §§ 1214(c)(5)(A), 1241(b)(1)(B), redesignated successively former subpar. (G) as (E) and (C), respectively.

Subsec. (a)(1)(H). Pub. L. 99–514, §§ 1214(c)(5)(A), 1241(b)(1)(B), redesignated successively former subpar. (H) as (F) and (D), respectively.

Subsec. (a)(2)(A). Pub. L. 99–514, § 1214(b), amended subpar. (A) generally. Prior to amendment, subpar. (A) read as follows: “from a domestic corporation other than a corporation which has an election in effect under section 936, and other than a corporation less than 20 percent of whose gross income is shown to the satisfaction of the Secretary to have been derived from sources within the United States, as determined under the provisions of this part, for the 3-year period ending with the close of the taxable year of such corporation preceding the declaration of such dividends (or for such part of such period as the corporation has been in existence), or”.

Subsec. (a)(2)(B). Pub. L. 99–514, § 1241(b)(2), substituted “25 percent” for “50 percent” and inserted “(or treated as effectively connected other than under section 884(d)(2))” in two places.

Subsec. (a)(6). Pub. L. 99–514, § 1211(b)(1)(B), substituted “inventory property (within the meaning of section 865(h)(1))” for “personal property”.

Subsec. (b). Pub. L. 99–514, § 104(b)(11), substituted “the standard deduction” for “the zero bracket amount”.

Subsec. (c). Pub. L. 99–514, § 1214(a)(2), amended subsec. (c) generally, substituting provisions relating to foreign business requirements for provisions relating to interest on deposits.

Subsec. (d). Pub. L. 99–514, § 1214(c)(5)(C), amended subsec. (d) generally, substituting provision for special rule for application of subsec. (a)(2)(B) for former provision for special rules for application of subsec. (a), pars. (1)(B) to (1)(D) and (2)(B), pars. (1) and (2) thereof relating to new entities and transition rule provisions.

Subsecs. (e), (f). Pub. L. 99–514, § 1212(d), redesignated subsec. (f) as (e) and struck out former subsec. (e) relating to treatment of income from certain leased aircraft, vessels, and spacecraft as income from sources within the United States.

1983—Subsec. (a)(8). Pub. L. 98–21 added par. (8).

1980—Subsec. (a)(5). Pub. L. 96–499 substituted “Disposition of United States real property interest” for “Sale or exchange of real property” in heading and “disposition of a United States real property interest (as defined in section 897(c))” for “sale or exchange of real property located in the United States” in text.

Subsec. (e). Pub. L. 96–605 substituted provision directing that income from certain leased aircraft, vessels, and spacecraft be treated as income from sources within the United States for provision permitting the taxpayer to elect to treat income from certain aircraft and vessels as income from sources within the United States and prescribing the manner of revocating such an election.

1978—Subsec. (a)(1)(F). Pub. L. 95–600, § 540(a), designated existing provisions as cl. (i) and added cl. (ii).

Subsec. (f). Pub. L. 95–600, § 370(a), added subsec. (f).

1977—Subsec. (b). Pub. L. 95–30 provided that, in the case of an individual who does not itemize deductions, an amount equal to the zero bracket amount shall be considered a deduction which cannot definitely be allocated to some item or class of gross income.

1976—Subsec. (a)(1). Pub. L. 94–455, §§ 1901(c)(7), 1904(b)(10)(B), struck out “, any Territory, any political subdivision of a Territory,” after “United States” in provisions preceding subpar. (A) and, in subpar. (G), substituted “subsection (c) of section 4912 (as in effect before July 1, 1974)” for “section 4912(c)” and “subsection (c)(2) of such section” for “section 4912(c)(2)”.

Subsec. (a)(2)(A). Pub. L. 94–455, §§ 1051(h)(3), 1906(b)(13)(A), substituted “other than a corporation which has an election in effect under section 936” for “other than a corporation entitled to the benefits of section 931” and struck out “or his delegate” after “Secretary”.

Subsec. (a)(2)(D). Pub. L. 94–455, § 1906(b)(13)(A), struck out “or his delegate” after “Secretary”.

Subsec. (a)(5), (6). Pub. L. 94–455, § 1901(b)(26)(A), substituted “sale or exchange” for “sale” in headings and text.

Subsec. (a)(7). Pub. L. 94–455, § 1036(a), added par. (7).

Subsec. (c)(3). Pub. L. 94–455, § 1041, struck out provision that subsecs. (a)(1)(A) and (c) would cease to apply effective with respect to amounts paid or credited after Dec. 31, 1976.

Subsec. (e)(1). Pub. L. 94–455, § 1901(b)(26)(B), substituted “sale, exchange, or other disposition” for “sale or other disposition”.

Subsecs. (e)(2), (3). Pub. L. 94–455, § 1906(b)(13)(A), struck out “or his delegate” after “Secretary”.

1975—Subsec. (a)(1)(H). Pub. L. 93–625, § 9(a), added subpar. (H).

Subsec. (c)(3). Pub. L. 93–625, § 8, substituted “1976” for “1975”.

1971—Subsec. (a)(1)(G). Pub. L. 92–9 added subpar. (G).

Subsec. (a)(2)(D). Pub. L. 92–178, § 503, added subpar. (D).

Subsec. (e). Pub. L. 92–178, § 314(a), added subsec. (e).

1969—Subsec. (a)(1)(C), (D). Pub. L. 91–172, § 435(a)(1), struck out “after December 31, 1972,” after “interest paid or credited” in parenthetical after “interest received from a foreign corporation”.

Subsec. (c)(3). Pub. L. 91–172, § 435(a)(2), substituted “1975” for “1972”.

1966—Subsec. (a)(1)(A). Pub. L. 89–809, § 102(a)(1)(A), substituted “interest on amounts described in subsection (c) received by a nonresident alien individual or a foreign corporation, if such interest is not effectively connected with the conduct of a trade or business within the United States” for “interest on deposits with persons carrying on the banking business paid to persons not engaged in business within the United States”.

Subsec. (a)(1)(B). Pub. L. 89–809, § 102(a)(2), struck out interest received from a resident foreign corporation, and substituted “gross income from all sources of such individual or such corporation” for “gross income of such resident payor or domestic corporation”, and “taxable year of such individual or such corporation” for “taxable year of such payor”.

Subsec. (a)(1)(C) to (F). Pub. L. 89–809, § 102(a)(2), added subpars. (C), (D), and (F), and redesignated former subpar. (C) as (E).

Subsec. (a)(2)(B). Pub. L. 89–809, § 102(b), substituted “50 percent of the gross income from all sources” for “50 percent of the gross income”, “effectively connected with the conduct of a trade or business within the United States” for “derived from sources within the United States as determined from the provisions of this part”, and “ratio to such dividends as the gross income of the corporation for such period which was effectively connected with the conduct of a trade or business within the United States bears to its gross income from all sources” for “ratio to such dividends as the gross income of the corporation for such period derived from sources within the United States bears to its gross income from all sources” and inserted “(other than dividends for which a deduction is allowable under section 245(b))” after “dividends” and “(and only to the extent)” after “extent”.

Subsec. (a)(3)(C)(ii). Pub. L. 89–809, § 102(c), inserted “an individual who is a citizen or resident of the United States, a domestic partnership, or” before “a domestic corporation” and “individual, partnership, or” after “United States by such”.

Subsecs. (c), (d). Pub. L. 89–809, § 102(a)(1)(B), (3), added subsecs. (c) and (d).

1962—Subsec. (a)(2)(B). Pub. L. 87–834 substituted “to the extent exceeding the amount which is 100/85ths of the amount of the deduction allowable under section 245 in respect of such dividends” for “to the extent exceeding the amount of the deduction allowable under section 245 in respect of such dividends.”

1960—Subsec. (a)(2)(C). Pub. L. 86–779 added subpar. (C).

Amendment by Pub. L. 115–97 applicable to taxable years beginning after Dec. 31, 2017, see section 13002(f) of Pub. L. 115–97, set out as a note under section 243 of this title.

Pub. L. 111–240, title II, § 2122(d), Sept. 27, 2010, 124 Stat. 2568, provided that:

Pub. L. 111–226, title II, § 217(d), Aug. 10, 2010, 124 Stat. 2402, provided that:

Pub. L. 108–357, title IV, § 410(b), Oct. 22, 2004, 118 Stat. 1500, provided that:

Pub. L. 107–16, title VI, § 621(b), June 7, 2001, 115 Stat. 111, provided that:

Amendment by Pub. L. 105–34 applicable to remuneration for services performed in taxable years beginning after Dec. 31, 1997, see section 1174(c) of Pub. L. 105–34, set out as a note under section 7701 of this title.

Amendment by Pub. L. 104–188 effective, except as otherwise expressly provided, as if included in the provision of the Revenue Reconciliation Act of 1990, Pub. L. 101–508, title XI, to which such amendment relates, see section 1702(i) of Pub. L. 104–188, set out as a note under section 38 of this title.

Amendment by section 11813(b)(17) of Pub. L. 101–508 applicable to property placed in service after Dec. 31, 1990, but not applicable to any transition property (as defined in section 49(e) of this title), any property with respect to which qualified progress expenditures were previously taken into account under section 46(d) of this title, and any property described in section 46(b)(2)(C) of this title, as such sections were in effect on Nov. 4, 1990, see section 11813(c) of Pub. L. 101–508, set out as a note under section 45K of this title.

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

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

Amendment by Pub. L. 100–203 applicable to dividends received or accrued after Dec. 31, 1987, in taxable years ending after such date, see section 10221(e)(1) of Pub. L. 100–203, set out as a note under section 243 of this title.

Amendment by section 104(b)(11) of Pub. L. 99–514 applicable to taxable years beginning after Dec. 31, 1986, see section 151(a) of Pub. L. 99–514, set out as a note under section 1 of this title.

Amendment by section 1211(b)(1)(B) of Pub. L. 99–514 applicable to taxable years beginning after Dec. 31, 1986, except as otherwise provided, see section 1211(c) of Pub. L. 99–514, set out as an Effective Date note under section 865 of this title.

Amendment by section 1212(d) of Pub. L. 99–514 applicable to taxable years beginning after Dec. 31, 1986, with special rules for certain leased property and for certain ships leased by United States Navy, see section 1212(f) of Pub. L. 99–514, set out as a note under section 863 of this title.

Pub. L. 99–514, title XII, § 1214(d), Oct. 22, 1986, 100 Stat. 2543, as amended by Pub. L. 100–647, title I, § 1012(g)(1)(A), (2), Nov. 10, 1988, 102 Stat. 3500, 3501, provided that:

[Pub. L. 100–647, title I, § 1012(g)(1)(B), Nov. 10, 1988, 102 Stat. 3500, provided that:

Amendment by section 1241(b) of Pub. L. 99–514 applicable to taxable years beginning after Dec. 31, 1986, see section 1241(e) of Pub. L. 99–514, set out as an Effective Date note under section 884 of this title.

Amendment by Pub. L. 98–21 applicable to benefits received after Dec. 31, 1983, in taxable years ending after such date, except for any portion of a lump-sum payment of social security benefits received after Dec. 31, 1983, if the generally applicable payment date for such portion was before Jan. 1, 1984, see section 121(g) of Pub. L. 98–21, set out as an Effective Date note under section 86 of this title.

Pub. L. 96–605, title I, § 104(b), Dec. 28, 1980, 94 Stat. 3523, provided that:

Amendment by Pub. L. 96–499 applicable to dispositions after June 18, 1980, see section 1125(a) of Pub. L. 96–499, set out as an Effective Date note under section 897 of this title.

Pub. L. 95–600, title III, § 370(b), Nov. 6, 1978, 92 Stat. 2858, provided that:

Pub. L. 95–600, title V, § 540(b), Nov. 6, 1978, 92 Stat. 2887, provided that:

Amendment by Pub. L. 95–30 applicable to taxable years beginning after Dec. 31, 1976, see section 106(a) of Pub. L. 95–30, set out as a note under section 1 of this title.

Pub. L. 94–455, title I, § 1036(c), Oct. 4, 1976, 90 Stat. 1633, provided that:

For effective date of amendment by section 1051(h)(3) of Pub. L. 94–455, see section 1051(i)(1) of Pub. L. 94–455, set out as a note under section 27 of this title.

Amendment by section 1901(b)(26)(A), (B), (c)(7) of Pub. L. 94–455 effective for taxable years beginning after Dec. 31, 1976, see section 1901(d) of Pub. L. 94–455, set out as a note under section 2 of this title.

Amendment by section 1904(b)(10)(B) of Pub. L. 94–455 effective on first day of first month which begins more than 90 days after date of enactment of this Act [Oct. 4, 1976], see section 1904(d) of Pub. L. 94–455, set out as a note under section 4041 of this title.

Pub. L. 93–625, § 9(c), Jan. 3, 1975, 88 Stat. 2116, provided that:

Pub. L. 92–9, § 3(a)(3), Apr. 1, 1971, 85 Stat. 15, provided that:

Pub. L. 92–178, title III, § 314(c), Dec. 10, 1971, 85 Stat. 528, provided that:

Amendment by section 503 of Pub. L. 92–178 applicable with respect to taxable years ending after Dec. 31, 1971, except that a corporation may not be a DISC for any taxable year beginning before Jan. 1, 1972, see section 507 of Pub. L. 92–178, set out as an Effective Date note under section 991 of this title.

Pub. L. 91–172, title IV, § 435(a)(1), Dec. 30, 1969, 83 Stat. 625, provided that the amendment made by that section is effective with respect to amounts paid or credited after Dec. 31, 1969.

Pub. L. 89–809, title I, § 102(e), Nov. 13, 1966, 80 Stat. 1547, as amended by Pub. L. 99–514, § 2, Oct. 22, 1986, 100 Stat. 2095, provided that:

Amendment by Pub. L. 87–834 applicable in respect of any distribution received by a domestic corporation after Dec. 31, 1964, and in respect of any distribution received by a domestic corporation before Jan. 1, 1965, in a taxable year of such corporation beginning after Dec. 31, 1962, but only to the extent that such distribution is made out of the accumulated profits of a foreign corporation for a taxable year (of such foreign corporation) beginning after Dec. 31, 1962, see section 9(e) of Pub. L. 87–834, set out as an Effective Date note under section 78 of this title.

Amendment by Pub. L. 86–779 applicable to dividends received after Dec. 31, 1959, in taxable years ending after such date, see section 3(c) of Pub. L. 86–779, set out as a note under section 243 of this title.

Pub. L. 92–9, § 1(a), Apr. 1, 1971, 85 Stat. 13, provided that:

Pub. L. 89–809, title I, § 101, Nov. 13, 1966, 80 Stat. 1541, provided that:

For provisions that nothing in amendment by Pub. L. 115–141 be construed to affect treatment of certain transactions occurring, property acquired, or items of income, loss, deduction, or credit taken into account prior to Mar. 23, 2018, for purposes of determining liability for tax for periods ending after Mar. 23, 2018, see section 401(e) of Pub. L. 115–141, set out as a note under section 23 of this title.

For provisions that nothing in amendment by Pub. L. 101–508 be construed to affect treatment of certain transactions occurring, property acquired, or items of income, loss, deduction, or credit taken into account prior to Nov. 5, 1990, for purposes of determining liability for tax for periods ending after Nov. 5, 1990, see section 11821(b) of Pub. L. 101–508, set out as a note under section 45K of this title.

Subsec. (a)(2)(B) of this section to be applied by substituting “100/80ths” for the fraction specified therein with regard to dividends received or accrued during 1987, see section 1006(b)(1)(B) of Pub. L. 100–647 set out as a note under section 245 of this title.

Pub. L. 100–647, title I, § 1012(aa)(2)–(4), Nov. 10, 1988, 102 Stat. 3531, 3532, provided that:

Pub. L. 100–647, title IV, § 4009, Nov. 10, 1988, 102 Stat. 3653, provided that:

Pub. L. 99–514, title XII, § 1216, Oct. 22, 1986, 100 Stat. 2549, provided that:

Pub. L. 98–369, div. A, title I, § 126, July 18, 1984, 98 Stat. 648, as amended by Pub. L. 99–272, title XIII, § 13211, Apr. 7, 1986, 100 Stat. 324; Pub. L. 99–514, § 2, Oct. 22, 1986, 100 Stat. 2095, provided that:

Pub. L. 89–809, title I, § 110, Nov. 13, 1966, 80 Stat. 1575, provided that: