26 U.S.C. § 864
Definitions and special rules
For purposes of this part, the term “produced” includes created, fabricated, manufactured, extracted, processed, cured, or aged.
Trading in stocks or securities through a resident broker, commission agent, custodian, or other independent agent.
Trading in stocks or securities for the taxpayer’s own account, whether by the taxpayer or his employees or through a resident broker, commission agent, custodian, or other agent, and whether or not any such employee or agent has discretionary authority to make decisions in effecting the transactions. This clause shall not apply in the case of a dealer in stocks or securities.
Trading in commodities through a resident broker, commission agent, custodian, or other independent agent.
Trading in commodities for the taxpayer’s own account, whether by the taxpayer or his employees or through a resident broker, commission agent, custodian, or other agent, and whether or not any such employee or agent has discretionary authority to make decisions in effecting the transactions. This clause shall not apply in the case of a dealer in commodities.
Clauses (i) and (ii) shall apply only if the commodities are of a kind customarily dealt in on an organized commodity exchange and if the transaction is of a kind customarily consummated at such place.
Subparagraphs (A)(i) and (B)(i) shall apply only if, at no time during the taxable year, the taxpayer has an office or other fixed place of business in the United States through which or by the direction of which the transactions in stocks or securities, or in commodities, as the case may be, are effected.
All income, gain, or loss from sources within the United States (other than income, gain, or loss to which paragraph (2) applies) shall be treated as effectively connected with the conduct of a trade or business within the United States.
Notwithstanding any other provision of this subtitle, if a nonresident alien individual or foreign corporation owns, directly or indirectly, an interest in a partnership which is engaged in any trade or business within the United States, gain or loss on the sale or exchange of all (or any portion of) such interest shall be treated as effectively connected with the conduct of such trade or business to the extent such gain or loss does not exceed the amount determined under subparagraph (B).
If a partnership described in subparagraph (A) holds any United States real property interest (as defined in section 897(c)) at the time of the sale or exchange of the partnership interest, then the gain or loss treated as effectively connected income under subparagraph (A) shall be reduced by the amount so treated with respect to such United States real property interest under section 897.
For purposes of this paragraph, the term “sale or exchange” means any sale, exchange, or other disposition.
The Secretary shall prescribe such regulations or other guidance as the Secretary determines appropriate for the application of this paragraph, including with respect to exchanges described in section 332, 351, 354, 355, 356, or 361.
For purposes of the provisions set forth in paragraph (2), if any person acquires (directly or indirectly) a trade or service receivable from a related person, any income of such person from the trade or service receivable so acquired shall be treated as if it were interest on a loan to the obligor under the receivable.
The Secretary shall prescribe such regulations as may be necessary to prevent the avoidance of the provisions of this subsection or section 956(c)(3).
The taxable income of each member of an affiliated group shall be determined by allocating and apportioning interest expense of each member as if all members of such group were a single corporation.
All allocations and apportionments of interest expense shall be determined using the adjusted bases of assets rather than on the basis of the fair market value of the assets or gross income.
For purposes of allocating and apportioning any deductible expense, any tax-exempt asset (and any income from such an asset) shall not be taken into account. A similar rule shall apply in the case of the portion of any dividend (other than a qualifying dividend as defined in section 243(b)) equal to the deduction allowable under section 243 or 245(a) with respect to such dividend and in the case of a like portion of any stock the dividends on which would be so deductible and would not be qualifying dividends (as so defined).
If, by reason of holding stock in a nonaffiliated 10-percent owned corporation, the taxpayer is treated under clause (iii) as owning stock in another corporation with respect to which the stock ownership requirements of clause (ii) are met, the adjustment under subparagraph (A) shall include an adjustment for the amount of the earnings and profits (or deficit therein) of such other corporation which are attributable to the stock the taxpayer is so treated as owning and to the period during which the taxpayer is treated as owning such stock.
The stock ownership requirements of this clause are met with respect to any corporation if members of the taxpayer’s affiliated group own (directly or through the application of clause (iii)) 10 percent or more of the total combined voting power of all classes of stock of such corporation entitled to vote.
For purposes of this subparagraph, stock owned (directly or indirectly) by a corporation, partnership, or trust shall be treated as being owned proportionately by its shareholders, partners, or beneficiaries. Stock considered to be owned by a person by reason of the application of the preceding sentence, shall, for purposes of applying such sentence, be treated as actually owned by such person.
For purposes of this paragraph, proper adjustment shall be made to the earnings and profits of any corporation to take into account any earnings and profits included in gross income under section 951 or under any other provision of this title and reflected in the adjusted basis of the stock.
For purposes of subparagraph (A), any corporation described in subparagraph (C) shall be treated as an includible corporation for purposes of section 1504 only for purposes of applying such section separately to corporations so described. This subparagraph shall not apply for purposes of paragraph (6).
Expenses other than interest which are not directly allocable or apportioned to any specific income producing activity shall be allocated and apportioned as if all members of the affiliated group were a single corporation.
For purposes of this section, the term “qualified research and experimental expenditures” means amounts which are foreign research or experimental expenditures within the meaning of section 174 or domestic research or experimental expenditures within the meaning of section 174A. For purposes of this paragraph, rules similar to the rules of subsection (c) of section 174 shall apply. Any qualified research and experimental expenditures allowed as an amortization deduction under section 174(a) or section 174A(c), shall be taken into account under this subsection for the taxable year for which such expenditures are allowed as a deduction under such section (as the case may be).
The Secretary shall prescribe such regulations as may be appropriate to carry out the purposes of this subsection, including regulations relating to the determination of whether any expenses are attributable to activities conducted in the United States or outside the United States and regulations providing such adjustments to the provisions of this subsection as may be appropriate in the case of cost-sharing arrangements and contract research.
This subsection shall apply to the taxpayer’s first taxable year (beginning on or before
Section 2(a) of the Bank Holding Company Act of 1956, referred to in subsec. (e)(5)(D)(i), is classified to section 1841(a) of Title 12, Banks and Banking.
Section 936, referred to in subsec. (g)(4)(B), (C), was repealed by Pub. L. 115–141, div. U, title IV, § 401(d)(1)(C),
2025—Subsec. (g)(2). Pub. L. 119–21 substituted “foreign research or experimental expenditures within the meaning of section 174 or domestic research or experimental expenditures within the meaning of section 174A” for “research and experimental expenditures within the meaning of section 174”, “allowed as an amortization deduction under section 174(a) or section 174A(c),” for “treated as deferred expenses under subsection (b) of section 174”, and “such section (as the case may be)” for “such subsection”.
2021—Subsec. (f). Pub. L. 117–2 struck out subsec. (f) which related to election to allocate interest and other expenses on worldwide basis.
2018—Subsec. (d)(5). Pub. L. 115–141, § 401(d)(1)(D)(x), amended par. (5) generally. Prior to amendment, par. (5) related to certain provisions that did not apply to any amount treated as interest under par. (1) or (6).
Subsec. (d)(8). Pub. L. 115–141, § 401(a)(152), substituted “section 956(c)(3)” for “section 956(b)(3)”.
Subsec. (e)(5)(A). Pub. L. 115–141, § 401(d)(1)(D)(xvii)(IV), struck out “(determined without regard to paragraph (4) of section 1504(b))” after “section 1504” in introductory provisions.
Subsec. (f)(1)(C)(i). Pub. L. 115–141, § 401(d)(1)(D)(xvii)(V), substituted “paragraph (2)” for “paragraphs (2) and (4)”.
Subsec. (f)(2). Pub. L. 115–141, § 401(d)(1)(D)(xvii)(V), which directed amendment of par. (2) by substituting “paragraph (2)” for “paragraphs (2) and (4)”, was executed by making the substitution for “paragraph (4)”, to reflect the probable intent of Congress.
2017—Subsec. (c)(1)(A). Pub. L. 115–97, § 13501(a)(2)(A), substituted “(7), and (8)” for “and (7)”.
Subsec. (c)(1)(B). Pub. L. 115–97, § 13501(a)(2)(B), substituted “(7), or (8)” for “or (7)”.
Subsec. (c)(8). Pub. L. 115–97, § 13501(a)(1), added par. (8).
Subsec. (e)(2). Pub. L. 115–97, § 14502(a), amended par. (2) generally. Prior to amendment, text read as follows: “All allocations and apportionments of interest expense shall be made on the basis of assets rather than gross income.”
2010—Subsec. (c)(4)(B)(ii). Pub. L. 111–240 substituted “dividends, interest, or amounts received for the provision of guarantees of indebtedness” for “dividends or interest”.
Subsec. (e)(5)(A). Pub. L. 111–226 inserted at end “Notwithstanding the preceding sentence, a foreign corporation shall be treated as a member of the affiliated group if—” and added cls. (i) and (ii).
Subsec. (f)(5)(D), (6). Pub. L. 111–147 substituted “
2009—Subsec. (f)(5)(D), (6). Pub. L. 111–92, § 15(a), substituted “
Subsec. (f)(7). Pub. L. 111–92, § 15(b), struck out par. (7). Text read as follows: “In the case of the first taxable year to which this subsection applies, the increase (if any) in the amount of the interest expense allocable to sources within the United States by reason of the application of this subsection shall be 30 percent of the amount of such increase determined without regard to this paragraph.”
2008—Subsec. (f)(5)(D), (6). Pub. L. 110–289, § 3093(a), substituted “
Subsec. (f)(7). Pub. L. 110–289, § 3093(b), added par. (7).
2004—Subsec. (c)(4)(B). Pub. L. 108–357, § 894(a), added concluding provisions.
Subsec. (d)(2). Pub. L. 108–357, § 413(c)(12), redesignated subpars. (B) and (C) as (A) and (B), respectively, and struck out former subpar. (A) which read as follows: “Part III of subchapter G of this chapter (relating to foreign personal holding companies).”
Subsec. (d)(5)(A)(i). Pub. L. 108–357, § 403(b)(6), substituted “(C)(iii)(II)” for “(C)(iii)(III)”.
Subsec. (e)(3). Pub. L. 108–357, § 101(b)(6), struck out “(A) In general” before “For purposes” and struck out heading and text of subpar. (B). Text read as follows: “For purposes of allocating and apportioning any interest expense, there shall not be taken into account any qualifying foreign trade property (as defined in section 943(a)) which is held by the taxpayer for lease or rental in the ordinary course of trade or business for use by the lessee outside the United States (as defined in section 943(b)(2)).”
Subsec. (e)(7)(B). Pub. L. 108–357, § 401(b)(1), inserted “and in other circumstances where such allocation would be appropriate to carry out the purposes of this subsection” before comma at end.
Subsec. (e)(7)(F), (G). Pub. L. 108–357, § 401(b)(2), added subpar. (F) and redesignated former subpar. (F) as (G).
Subsecs. (f), (g). Pub. L. 108–357, § 401(a), added subsec. (f) and redesignated former subsec. (f) as (g).
2000—Subsec. (e)(3). Pub. L. 106–519 designated existing provisions as subpar. (A), inserted heading, and added subpar. (B).
1999—Subsecs. (c)(4)(B)(iii), (d)(3)(A), (6)(A). Pub. L. 106–170 substituted “section 1221(a)(1)” for “section 1221(1)”.
1997—Subsec. (b)(2)(A)(ii). Pub. L. 105–34 struck out “, or in the case of a corporation (other than a corporation which is, or but for section 542(c)(7), 542(c)(10), or 543(b)(1)(C) would be, a personal holding company) the principal business of which is trading in stocks or securities for its own account, if its principal office is in the United States” after “dealer in stocks or securities”.
1993—Subsec. (f)(1)(B). Pub. L. 103–66, § 13234(a), substituted “50 percent” for “64 percent” in cls. (i) and (ii).
Subsec. (f)(4)(D). Pub. L. 103–66, § 13234(b)(2), substituted “subparagraph (B) or (C)” for “subparagraph (C)”.
Subsec. (f)(5), (6). Pub. L. 103–66, § 13234(b)(1), added pars. (5) and (6) and struck out heading and text of former par. (5). Text read as follows:
“(A)
“(B)
1991—Subsec. (f)(5). Pub. L. 102–227 amended par. (5) generally. Prior to amendment, par. (5) read as follows: “This subsection shall apply to the taxpayer’s first 2 taxable years beginning after
1990—Subsec. (f)(5). Pub. L. 101–508 substituted “Years” for “Year” in heading and amended text generally. Prior to amendment, text read as follows:
“(A)
“(B)
“(i) the lesser of 9 months or the number of months in the taxable year, bears to
“(ii) the number of months in the taxable year.”
1989—Subsec. (f). Pub. L. 101–239 added subsec. (f).
1988—Subsec. (b)(2)(A)(ii). Pub. L. 100–647, § 1012(p)(30), substituted “section 542(c)(7), 542(c)(10),” for “section 542(c)(7)”.
Subsec. (c)(2). Pub. L. 100–647, § 1012(g)(5), struck out at end “In applying this paragraph and paragraph (4), interest referred to in section 861(a)(1)(A) shall be considered income from sources within the United States.”
Subsec. (c)(4)(B)(i), (ii). Pub. L. 100–647, § 1012(d)(10), struck out “(including any gain or loss realized on the sale or exchange of such property)” after “section 862(a)(4)” in cl. (i) and “, or gain or loss from the sale or exchange of stock or notes, bonds, or other evidences of indebtedness” after “dividends or interest” in cl. (ii).
Subsec. (c)(4)(B)(iii). Pub. L. 100–647, § 1012(d)(7), added cl. (iii).
Subsec. (c)(6). Pub. L. 100–647, § 1012(r)(2), amended par. (6) generally. Prior to amendment, par. (6) read as follows: “For purposes of this title, any income or gain of a nonresident alien individual or a foreign corporation for any taxable year which is attributable to a sale or exchange of property or the performance of services (or any other transaction) in any other taxable year shall be treated as effectively connected with the conduct of a trade or business within the United States if it would have been so treated if such income or gain were taken into account in such other taxable year.”
Subsec. (c)(7). Pub. L. 100–647, § 1012(r)(1), amended par. (7) generally. Prior to amendment, par. (7) read as follows: “For purposes of this title, if any property ceases to be used or held for use in connection with the conduct of a trade or business within the United States, the determination of whether any income or gain attributable to a sale or exchange of such property occurring within 10 years after such cessation is effectively connected with the conduct of a trade or business within the United States shall be made as if such sale or exchange occurred immediately before such cessation.”
Subsec. (d)(5)(A)(i). Pub. L. 100–647, § 1012(a)(1)(B), substituted “(C)(iii)(III)” for “(C)(iii)”.
Subsec. (e). Pub. L. 100–647, § 1012(h)(6)(B), struck out “(except as provided in regulations)” after “subchapter”.
Subsec. (e)(1). Pub. L. 100–647, § 1012(h)(2)(A), struck out “from sources outside the United States” after “affiliated group”.
Subsec. (e)(3). Pub. L. 100–647, § 1012(h)(3), inserted sentence at end and struck out former last sentence which read as follows: “A similar rule shall apply in the case of any dividend (other than a qualifying dividend as defined in section 243(b)) for which a deduction is allowable under section 243 or 245(a) and any stock the dividends on which would be so deductible and would not be qualifying dividends (as so defined).”
Subsec. (e)(4). Pub. L. 100–647, § 1012(h)(1), substituted “nonaffiliated 10-percent owned corporations” for “certain corporations” in heading and amended text generally. Prior to amendment, text read as follows: “For purposes of allocating and apportioning expenses on the basis of assets, the adjusted basis of any asset which is stock in a corporation which is not included in the affiliated group and in which members of the affiliated group own 10 percent or more of the total combined voting power of all classes of stock entitled to vote in such corporation shall be—
“(A) increased by the amount of the earnings and profits of such corporation attributable to such stock and accumulated during the period the taxpayer held such stock, or
“(B) reduced (but not below zero) by any deficit in earnings and profits of such corporation attributable to such stock for such period.”
Subsec. (e)(5)(B). Pub. L. 100–647, § 1012(h)(4)(B), inserted at end “This subparagraph shall not apply for purposes of paragraph (6).”
Subsec. (e)(5)(D). Pub. L. 100–647, § 1012(h)(4)(A), added subpar. (D).
Subsec. (e)(6). Pub. L. 100–647, § 1012(h)(5), substituted “directly allocable or apportioned” for “directly allocable and apportioned”.
Subsec. (e)(7)(D) to (F). Pub. L. 100–647, § 1012(h)(6)(A), added subpars. (D) to (F).
1987—Subsec. (c)(4)(C). Pub. L. 100–203 inserted “or part II” after “part I”.
1986—Pub. L. 99–514, § 1215(b)(1), inserted “and special rules” in section catchline.
Subsec. (c)(1)(A). Pub. L. 99–514, § 1242(b)(1), inserted reference to pars. (6) and (7).
Subsec. (c)(1)(B). Pub. L. 99–514, § 1242(b)(2), inserted “paragraph (6) or (7) or in”.
Subsec. (c)(2). Pub. L. 99–514, § 1899A(21), inserted a comma between “section 871(h)” and “section 881(a)”.
Subsec. (c)(4)(B)(iii). Pub. L. 99–514, § 1211(b)(2), struck out cl. (iii), which read as follows: “is derived from the sale or exchange (without the United States) through such office or other fixed place of business of personal property described in section 1221(1), except that this clause shall not apply if the property is sold or exchanged for use, consumption, or disposition outside the United States and an office or other fixed place of business of the taxpayer outside the United States participated materially in such sale or exchange.”
Subsec. (c)(6), (7). Pub. L. 99–514, § 1242(a), added pars. (6) and (7).
Subsec. (d)(5)(A)(i). Pub. L. 99–514, § 1201(d)(4), amended cl. (i) generally. Prior to amendment, cl. (i) read as follows: “Subparagraphs (A), (B), (C), and (D) of section 904(d)(2) (relating to interest income to which separate limitation applies) and subparagraph (J) of section 904(d)(3) (relating to interest from members of same affiliated group).”
Pub. L. 99–514, § 1810(c)(3), inserted “and subparagraph (J) of section 904(d)(3) (relating to interest from members of same affiliated group)”.
Subsec. (d)(5)(A)(ii). Pub. L. 99–514, § 1223(b)(1), substituted “less than 5 percent or $1,000,000” for “less than 10 percent”.
Subsec. (d)(5)(A)(iii). Pub. L. 99–514, § 1221(a)(2), amended cl. (iii) generally, substituting “section 954(c)(2) (relating to certain export financing)” for “section 954(c)(3) (relating to certain income derived in active conduct of trade or business)”.
Subsec. (d)(5)(A)(iv). Pub. L. 99–514, § 1221(a)(2), amended cl. (iv) generally, substituting “Clause (i) of section 954(c)(3)(A) (relating to” for “Subparagraphs (A) and (B) of section 954(c)(4) (relating to exception for”.
Subsec. (d)(5)(B). Pub. L. 99–514, § 1275(c)(7), amended subpar. (B) generally, striking out cl. (i) heading, substituting “An amount” for “Any amount”, and striking out cl. (ii), Virgin Islands corporations, which read as follows: “Subsection (b) of section 934 shall not apply to any amount treated as interest under paragraph (1) unless such amount is from sources within the Virgin Islands (determined after the application of paragraph (1)).”
Subsec. (d)(7), (8). Pub. L. 99–514, § 1810(c)(2), added par. (7) and redesignated former par. (7) as (8).
Subsec. (e). Pub. L. 99–514, § 1215(a), added subsec. (e).
1984—Subsec. (c)(2). Pub. L. 98–369, § 127(c), substituted “section 871(a)(1), section 871(h) section 881(a), or section 881(c)” for “section 871(a)(1) or section 881(a)”.
Subsec. (d). Pub. L. 98–369, § 123(a), added subsec. (d).
1976—Subsec. (a). Pub. L. 94–455, § 1901(a)(113)(A), substituted in heading “Produced” for “Sale, etc.” and struck out in text provisions relating to the definition of sale and sold.
Subsec. (c)(4)(B)(i). Pub. L. 94–455, § 1901(a)(113)(B), substituted “sale or exchange” for “sale”.
Subsec. (c)(4)(B)(iii). Pub. L. 94–455, § 1901(a)(113)(B), (C), substituted “sold or exchanged” for “sold” and “sale or exchange” for “sale” wherever appearing.
Subsec. (c)(5)(C). Pub. L. 94–455, § 1901(a)(113)(B), substituted “sale or exchange” for “sale” wherever appearing.
1966—Pub. L. 89–809 designated existing provisions as subsec. (a) and added subsecs. (b) and (c).
Amendment by Pub. L. 119–21 applicable to amounts paid or incurred in taxable years beginning after
Pub. L. 117–2, title IX, § 9671(b),
Pub. L. 115–97, title I, § 13501(c)(1),
Pub. L. 115–97, title I, § 14502(b),
Amendment by Pub. L. 111–240 applicable to guarantees issued after
Pub. L. 111–226, title II, § 216(b),
Pub. L. 111–147, title V, § 551(b),
Pub. L. 111–92, § 15(c),
Pub. L. 110–289, div. C, title III, § 3093(c),
Amendment by section 101(b)(6) of Pub. L. 108–357 applicable to transactions after
Pub. L. 108–357, title IV, § 401(c),
Pub. L. 108–357, title IV, § 403(c),
Pub. L. 108–357, title IV, § 403(d), as added by Pub. L. 109–135, title IV, § 403(l),
[Amendment by Pub. L. 109–135 adding section 403(d) of Pub. L. 108–357, set out above, 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 an Effective Date of 2005 Amendment note under section 26 of this title.]
Amendment by section 413(c)(12) of Pub. L. 108–357 applicable to taxable years of foreign corporations beginning after
Pub. L. 108–357, title VIII, § 894(b),
Amendment by Pub. L. 106–519 applicable to transactions after
Amendment by Pub. L. 106–170 applicable to any instrument held, acquired, or entered into, any transaction entered into, and supplies held or acquired on or after
Pub. L. 105–34, title XI, § 1162(b),
Pub. L. 102–227, title I, § 101(b),
Pub. L. 101–508, title XI, § 11401(b),
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 taxable years beginning after
Amendment by section 1201(d)(4) of Pub. L. 99–514 applicable to taxable years beginning after
Amendment by section 1211(b)(2) of Pub. L. 99–514 applicable to taxable years beginning after
Pub. L. 99–514, title XII, § 1215(c), The applicable “In the case of the: percentage is: 1st taxable year 75 2nd taxable year 50 3rd taxable year 25. “In the case of the: The applicable percentage for purposes of subclause (I) is: The applicable percentage for purposes of subclause (II) is: 1st taxable year 8⅓ 10 2nd taxable year 16⅔ 25 3rd taxable year 25 50 4th taxable year 33⅓ 100 5th taxable year 16⅔ 100. “In the case of the: The applicable percentage for purposes of subclause (I) is: The applicable percentage for purposes of subclause (II) is: 1st taxable year 5 6¼ 2nd taxable year 10 16⅔ 3rd taxable year 15 37½ 4th taxable year 20 100 5th taxable year 0 0. “In the case of the: The applicable percentage is: 1st taxable year 90 2nd taxable year 80 3rd taxable year 70 4th taxable year 60 5th taxable year 50 6th taxable year 40 7th taxable year 30 8th taxable year 20 9th taxable year 10. “In the case of taxable The phase-in years beginning in: percentage is: 1987 75 1988 50 1989 25.”
[Pub. L. 104–191, title V, § 521(b),
[“(1)
[“(2)
Amendment by section 1221(a)(2) of Pub. L. 99–514 applicable to taxable years of foreign corporations beginning after
Pub. L. 99–514, title XII, § 1223(c),
Pub. L. 99–514, title XII, § 1242(c),
Amendment by section 1275(c)(7) of Pub. L. 99–514 applicable to taxable years beginning after
Amendment by section 1810(c)(2), (3) of Pub. L. 99–514 effective, except as otherwise provided, as if included in the provisions of the Tax Reform Act of 1984, Pub. L. 98–369, div. A, to which such amendment relates, see section 1881 of Pub. L. 99–514, set out as a note under section 48 of this title.
Pub. L. 98–369, div. A, title I, § 123(c),
Amendment by section 127(c) of Pub. L. 98–369 applicable to interest received after
Amendment by Pub. L. 94–455 effective for taxable years beginning after
Amendment by Pub. L. 89–809 applicable with respect to taxable years beginning after
For provisions that nothing in amendment by section 401(d)(1)(D)(x), (xvii)(IV), (V) of 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
For applicability of amendment by section 1201(d)(4) of Pub. L. 99–514 notwithstanding any treaty obligation of the United States in effect on
For provisions directing that if any amendments made by subtitle A or subtitle C of title XI [§§ 1101–1147 and 1171–1177] or title XVIII [§§ 1800–1899A] of Pub. L. 99–514 require an amendment to any plan, such plan amendment shall not be required to be made before the first plan year beginning on or after