Code of Federal Regulations · Section
§ 1.270-1 — -1 Limitation On Deductions Allowable To Individuals In Certain Cases
26 C.F.R. § 1.270-1
(a) Recomputation of taxable income. (1) Under certain circumstances, section 270 limits the deductions (other than certain deductions described in subsection (b) thereof) attributable to a trade or business carried on by an individual which are otherwise allowable to such individual under the provisions of chapter 1 of the Code or the corresponding provisions of prior revenue laws. If, in each of five consecutive taxable years (including at least one taxable year beginning after December 31, 1953, and ending after August 16, 1954), the deductions attributable to a trade or business carried on by an individual (other than the specially treated deductions described in paragraph (b) of this section) exceed the gross income derived from such trade or business by more than $50,000, the taxable income computed under section 63 (or the net income computed under the corresponding provisions of prior revenue laws) of such individual shall be recomputed for each of such taxable years.
(2) In recomputing the taxable income (or the net income, in the case of taxable years which are otherwise subject to the Internal Revenue Code of 1939) for each of the five taxable years, the deductions (other than the specially treated deductions described in paragraph (b) of this section with the exception of the net operating loss deduction) attributable to the trade or business carried on by the individual shall be allowed only to the extent of (i) the gross income derived from such trade or business, plus (ii) $50,000. The specially treated deductions described in paragraph (b) of this section (other than the net operating loss deduction) shall each be allowed in full. The net operating loss deduction, to the extent attributable to such trade or business, shall be disallowed in its entirety. Thus, a carryover or a carryback of a net operating loss so attributable, either from a year within the period of five consecutive taxable years or from a taxable year outside of such period, shall be ignored in making the recomputation of taxable income or net income, as the case may be.
(3) The limitations on deductions provided by section 270 are also applicable in determining under section 172, or the corresponding provisions of prior revenue laws, the amount of any net operating loss carryover or carryback from any year which falls within the provisions of section 270 to any year which does not fall within such provisions. Also, in determining under section 172, or the corresponding provisions of prior revenue laws, the amount of any net operating loss carryover from a year which falls within the provisions of section 270 to a year which does not fall within such provisions, the amount of net operating loss is to be reduced by the taxable income or net income, as the case may be (computed as provided in § 1.172-5, or 26 CFR (1939) 39.122-4(c) (Regulations 118), as the case may be and, in the case of any taxable year which falls within the provisions of section 270, determined after the application of section 270), of any taxable year preceding or succeeding the taxable year of the net operating loss to which such loss must first be carried back or carried over under the provisions of section 172(b), or the corresponding provisions of prior revenue laws, even though the net operating loss deduction is not an allowable deduction for such preceding or succeeding taxable year.
(4) If an individual carries on several trades or businesses, the deductions attributable to such trades or businesses and the gross income derived therefrom shall not be aggregated in determining whether the deductions (other than the specially treated deductions) exceed the gross income derived from such trades or businesses by more than $50,000 in any taxable year. For the purposes of section 270, each trade or business shall be considered separately. However, where a particular business of an individual is conducted in one or more forms such as a partnership, joint venture, or individual proprietorship, the individual's share of the profits and losses from each business unit must be aggregated to determine the applicability of section 270. See paragraphs (a)(8)(ii) and (b) of § 1.702-1, relating to applicability of section 270 to a partner. Where it is established that for tax purposes a husband and wife are partners in the same trade or business or that each is participating independently of the other in the same trade or business with his and her own money, the husband's gross income and deductions from that trade or business shall be considered separately from the wife's gross income and deductions from that trade or business even though they file a joint return. Where a taxpayer is engaged in a trade or business in a community property State under circumstances such that the income therefrom is considered to be community income, the taxpayer and his spouse are treated for purposes of section 270 as two individuals engaged separately in the same trade or business and the gross income and deductions attributable to the trade or business are allocated one-half to the taxpayer and one-half to the spouse. Where several business activities emanate from a single commodity, such as oil or gas or a tract of land, it does not necessarily follow that such activities are one business for the purposes of section 270. However, in order to be treated separately, it must be established that such business activities are actually conducted separately and are not closely interrelated with each other. For the purposes of section 270, the trade or business carried on by an individual must be the same in each of the five consecutive years in which the deductions (other than the specially treated deductions) exceed the gross income derived from such trade or business by more than $50,000.
(5) For the purposes of section 270, a taxable year may be part of two or more periods of five consecutive taxable years. Thus, if the deductions (other than the specially treated deductions) attributable to a trade or business carried on by an individual exceed the gross income therefrom by more than $50,000 for each of six consecutive taxable years, the fifth year of such six consecutive taxable years shall be considered to be a part both of a five-year period beginning with the first and ending with the fifth taxable year and of a five-year period beginning with the second and ending with the sixth taxable year.
(6) For the purposes of section 270, a short taxable year required to effect a change in accounting period constitutes a taxable year. In determining the applicability of section 270 in the case of a short taxable year, items of income and deduction are not annualized.
(b) Specially treated deductions. (1) For the purposes of section 270 and paragraph (a) of this section, the specially treated deductions are:
(i) Taxes,
(ii) Interest,
(iii) Casualty and abandonment losses connected with a trade or business deductible under section 165(c)(1) or the corresponding provisions of prior revenue laws,
(iv) Losses and expenses of the trade or business of farming which are directly attributable to drought,
(v) The net operating loss deduction allowed by section 172, or the corresponding provisions of prior revenue laws, and
(vi) Expenditures as to which a taxpayer is given the option, under law or regulations, either (a) to deduct as expenses when incurred, or (b) to defer or capitalize.
(2) For the purpose of subparagraph (1)(iv) of this paragraph, an individual is engaged in the “trade or business of farming” if he cultivates, operates, or manages a farm for gain or profit, either as owner or tenant. An individual who receives a rental (either in cash or in kind) which is based upon farm production is engaged in the trade or business of farming. However, an individual who receives a fixed rental (without reference to production) is engaged in the trade or business of farming only if he participates to a material extent in the operation or management of the farm. An individual engaged in forestry or the growing of timber is not thereby engaged in the trade or business of farming. An individual cultivating or operating a farm for recreation or pleasure rather than a profit is not engaged in the trade or business of farming. The term farm is used in its ordinarily accepted sense and includes stock, dairy, poultry, fruit, crop, and truck farms, and also plantations, ranches, ranges, and orchards. An individual is engaged in the trade or business of farming if he is a member of a partnership engaged in the trade or business of farming.
(3) In order for losses and expenses of the trade or business of farming to qualify as specially treated deductions under subparagraph (1)(iv) of this paragraph such losses and expenses must be directly attributable to drought conditions and not to other causes such as faulty management or unfavorable market conditions. In general, the following are the types of losses and expenses which, if otherwise deductible, may qualify as specially treated deductions under subparagraph (1)(iv) of this paragraph:
(i) Losses for damages to or destruction of property as a result of drought conditions, if such property is used in the trade or business of farming or is purchased for resale in the trade or business of farming;
(ii) Expenses directly related to raising crops or livestock which are destroyed or damaged by drought. Included in this category are, for example, payments for labor, fertilizer, and feed used in raising such crops or livestock. If such crops or livestock to which the expenditures relate are only partially destroyed or damaged by drought then only a proportionate part of the expenditures is regarded as specially treated deductions; and
(iii) Expenses which would not have been incurred in the absence of drought conditions, such as expenses for procuring pasture or additional supplies of water or feed.
(4) The expenditures referred to in subparagraph (1)(vi) of this paragraph include, but are not limited to, intangible drilling and development costs in the case of oil and gas wells as provided in section 263(c) and the regulations thereunder, and expenditures for the development of a mine or other natural deposit (other than an oil or gas well) as provided in section 616 and the regulations thereunder.
(5) The provisions of section 270(b) do not operate to make an expenditure a deductible item if it is not otherwise deductible under the law applicable to the particular year in which it was incurred. Thus, for example, if it is necessary, pursuant to the provisions of section 270, to recompute the taxable or net income of an individual for the taxable years 1950 through 1954, the individual in making the recomputation may not deduct expenditures paid or incurred in the years 1950 through 1953 which must be capitalized under the law applicable to those years, even though the expenditures are deductible under the Code.
(c) Applicability to taxable years otherwise subject to the Internal Revenue Code of 1939. The net income of a taxable year otherwise subject to the Internal Revenue Code of 1939 shall be recomputed pursuant to section 270 if (i) such taxable year is included in a period of five consecutive taxable years which includes at least one taxable year beginning after December 31, 1953, and ending after August 16, 1954, and (ii) the deductions (other than the specially treated deductions specified in section 270(b)) for each taxable year in such five-year period exceed the $50,000 limitation specified in section 270. As described in paragraph (a)(5) of this section, a taxable year may be part of two or more periods of five consecutive taxable years, one meeting the requirements for recomputation pursuant to section 130 of the Internal Revenue Code of 1939 and the other meeting the requirements for recomputation pursuant to section 270 of the Internal Revenue Code of 1954, then the recomputation for such taxable year shall be made pursuant to section 270. For example, if a calendar year taxpayer sustains a loss from a trade or business for each of the years 1949 through 1954, the years 1950, 1951, 1952, and 1953 may be a part of two such periods of five consecutive taxable years. If, however, a taxable year is part of a period of five consecutive taxable years which meets the requirements for recomputation pursuant to section 130 of the Internal Revenue Code of 1939, but is not part of a period which meets the requirements for recomputation, pursuant to section 270, then a recomputation of net income for such taxable year must be made pursuant to section 130.
(d) Redetermination of tax. The tax imposed by Chapter 1 of the Code, or by the corresponding provisions of prior revenue laws, for each of the five consecutive taxable years specified in paragraph (a) of this section shall be redetermined upon the basis of the taxable income or net income of the individual, as the case may be, recomputed in the manner described in paragraph (a) of this section. If the assessment of a deficiency is prevented (except for the provisions of Part II (section 1311 and following), Subchapter Q, Chapter 1 of the Code, relating to the effect of limitations and other provisions in income tax cases) by the operation of any provision of law (e.g., sections 6501 and 6502, or the corresponding provisions of prior revenue laws, relating to the period of limitations upon assessment and collection) except section 7122, or the corresponding provisions of prior revenue laws, relating to compromises, or by any rule of law (e.g., res judicata), then the excess of the tax for such year as recomputed over the tax previously determined for such year shall be considered a deficiency for the purposes of section 270. The term tax previously determined shall have the same meaning as that assigned to such term by section 1314(a). See § 1.1314 (a)-1.
(e) Assessment of tax. Any amount determined as a deficiency in the manner described in paragraph (d) of this section in respect of any taxable year of the five consecutive taxable years specified in paragraph (a) of this section may be assessed and collected as if on the date of the expiration of the period of limitation for the assessment of a deficiency for the fifth taxable year of such five consecutive taxable years, one year remained before the expiration of the period of limitation upon assessment for the taxable year in respect of which the deficiency is determined. If the taxable year is one in respect of which an assessment could be made without regard to section 270, the amount of the actual deficiency as defined in section 6211(a) (whether it is greater than, equal to, or less than the deficiency determined under section 270(c)) shall be assessed and collected. However, if the assessment of a deficiency for such taxable year would be prevented by any provision of law (e.g., the period of limitation upon the assessment of tax) except section 7122, or the corresponding provision of prior revenue laws, relating to compromises, or by the operation of any rule of law (e.g., res judicata), then the excess of the tax recomputed as described in paragraph (d) of this section over the tax previously determined may be assessed and collected even though in fact there is no actual deficiency, as defined in section 6211(a), in respect of the given taxable year.
(f) Effective date; cross reference. The provisions of section 270 and this section apply to taxable years beginning before January 1, 1970. Thus, for instance, if the taxpayer had a profit of $2,000 attributable to a trade or business in 1965, section 270 and this section would not apply to the taxable years 1966 through 1970, even though he had losses of more than $50,000 in each of the 5 years ending with 1970. For provisions relating to activities not engaged in for profit applicable to taxable years beginning after December 31, 1969, see section 183 and the regulations thereunder.
Authorizing Statute
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Rules and regulations26 U.S.C. § 7805
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Advanced manufacturing production credit26 U.S.C. § 45X
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Alcohol, etc., used as fuel26 U.S.C. § 40
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Gross income defined26 U.S.C. § 61
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Transfers of excess pension assets to retiree health accounts26 U.S.C. § 420
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Partial exclusion for gain from certain small business stock26 U.S.C. § 1202
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Tax treatment of stripped bonds26 U.S.C. § 1286
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Current taxation of income from qualified electing funds26 U.S.C. § 1293
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Imposition of tax on certain foreign procurement26 U.S.C. § 5000C
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Returns regarding payments of interest26 U.S.C. § 6049
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Signing of returns and other documents26 U.S.C. § 6061
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General requirement of return, statement, or list26 U.S.C. § 6011
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Income from discharge of indebtedness26 U.S.C. § 108
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Indian general welfare benefits26 U.S.C. § 139E
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Bonds must be registered to be tax exempt; other requirements26 U.S.C. § 149
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Trade or business expenses26 U.S.C. § 162
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Accelerated cost recovery system26 U.S.C. § 168
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Amortizable bond premium26 U.S.C. § 171
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Golden parachute payments26 U.S.C. § 280G
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Distributions of stock and stock rights26 U.S.C. § 305
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Transfer to corporation controlled by transferor26 U.S.C. § 351
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Special rules for long-term contracts26 U.S.C. § 460
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Determination of basis of partner’s interest26 U.S.C. § 705
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Taxes of foreign countries and of possessions of United States26 U.S.C. § 901
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Controlled foreign corporations; United States persons26 U.S.C. § 957
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New energy efficient home credit26 U.S.C. § 45L
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2-percent floor on miscellaneous itemized deductions26 U.S.C. § 67
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Certain death benefits26 U.S.C. § 101
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Qualified business income26 U.S.C. § 199A
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Installment method26 U.S.C. § 453
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Certain payments for the use of property or services26 U.S.C. § 467
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Partners, not partnership, subject to tax26 U.S.C. § 701
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Extent of recognition of gain or loss on distribution26 U.S.C. § 731
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Capitalization of certain policy acquisition expenses26 U.S.C. § 848
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Special rules for determining source26 U.S.C. § 863
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Income of foreign governments and of international organizations26 U.S.C. § 892
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Definitions and special rules26 U.S.C. § 6241
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Computation and payment of tax26 U.S.C. § 1503
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Adjusted gross income defined26 U.S.C. § 62
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Treatment of loans with below-market interest rates26 U.S.C. § 7872
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Basis to distributees26 U.S.C. § 358
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Minimum participation standards26 U.S.C. § 410
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Other definitions and special rules26 U.S.C. § 860G
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Adjustments required by changes in method of accounting26 U.S.C. § 481
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Definitions26 U.S.C. § 7701
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Insurance income26 U.S.C. § 953
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Returns relating to actions affecting basis of specified securities26 U.S.C. § 6045B
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Information relating to certain trusts and annuity plans26 U.S.C. § 6047
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Enhanced oil recovery credit26 U.S.C. § 43
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Energy efficient commercial buildings deduction26 U.S.C. § 179D
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Redemption through use of related corporations26 U.S.C. § 304
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Certain stock purchases treated as asset acquisitions26 U.S.C. § 338
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Special limitations on certain excess credits, etc.26 U.S.C. § 383
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Optional treatment of elective deferrals as Roth contributions26 U.S.C. § 402A
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General rule for taxable year of inclusion26 U.S.C. § 451
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Qualified ABLE programs26 U.S.C. § 529A
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Charitable remainder trusts26 U.S.C. § 664
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Nonrecognition of gain or loss on contribution26 U.S.C. § 721
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Investment of earnings in United States property26 U.S.C. § 956
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Definitions and special rule26 U.S.C. § 1377
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Relief from joint and several liability on joint return26 U.S.C. § 6015
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Return of S corporation26 U.S.C. § 6037
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Notice of certain transfers to foreign persons26 U.S.C. § 6038B
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Information at source26 U.S.C. § 6041
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Imposition of accuracy-related penalty on underpayments26 U.S.C. § 6662
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Tax imposed26 U.S.C. § 1
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Railroad track maintenance credit26 U.S.C. § 45G
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Zero-emission nuclear power production credit26 U.S.C. § 45U
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Rehabilitation credit26 U.S.C. § 47
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Clean electricity investment credit26 U.S.C. § 48E
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Special rules26 U.S.C. § 52
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Election to expense certain depreciable business assets26 U.S.C. § 179
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Individual retirement accounts26 U.S.C. § 408
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Special rules for nondealers26 U.S.C. § 453A
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Deductions limited to amount at risk26 U.S.C. § 465
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Exemption from tax on corporations, certain trusts, etc.26 U.S.C. § 501
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Definition of regulated investment company26 U.S.C. § 851
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Source rules for personal property sales26 U.S.C. § 865
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Tax on nonresident alien individuals26 U.S.C. § 871
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Foreign base company income26 U.S.C. § 954
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S corporation defined26 U.S.C. § 1361
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Definitions26 U.S.C. § 1402
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Distributions of property26 U.S.C. § 301
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Life insurance contract defined26 U.S.C. § 7702
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Previously-owned clean vehicles26 U.S.C. § 25E
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Electricity produced from certain renewable resources, etc.26 U.S.C. § 45
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Clean fuel production credit26 U.S.C. § 45Z
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Taxation of employee annuities26 U.S.C. § 403
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Last-in, first-out inventories26 U.S.C. § 472
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Allocation of income and deductions among taxpayers26 U.S.C. § 482
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Definitions applicable to subparts A, B, C, and D26 U.S.C. § 643
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Taxable years of partner and partnership26 U.S.C. § 706
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Disposition of investment in United States real property26 U.S.C. § 897
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Administrative adjustment request by partnership26 U.S.C. § 6227
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Citizens or residents of the United States living abroad26 U.S.C. § 911
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Residence and source rules involving possessions26 U.S.C. § 937
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Rules relating to expatriated entities and their foreign parents26 U.S.C. § 7874
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Regulations26 U.S.C. § 1502
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Capitalization and inclusion in inventory costs of certain expenses26 U.S.C. § 263A
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Foreign corporations26 U.S.C. § 367
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Roth IRAs26 U.S.C. § 408A
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Minimum vesting standards26 U.S.C. § 411
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Partner’s distributive share26 U.S.C. § 704
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Unrealized receivables and inventory items26 U.S.C. § 751
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Taxation of residual interests26 U.S.C. § 860C
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Exclusions from gross income26 U.S.C. § 883
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Income affected by treaty26 U.S.C. § 894
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Other definitions and special rules26 U.S.C. § 989
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Special rules26 U.S.C. § 1474
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Returns of brokers26 U.S.C. § 6045
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Information returns of tax return preparers26 U.S.C. § 6060
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Authority to make credits or refunds26 U.S.C. § 6402
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Failure by individual to pay estimated income tax26 U.S.C. § 6654
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Interest on certain home mortgages26 U.S.C. § 25
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Credit for qualified commercial clean vehicles26 U.S.C. § 45W
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Interest on State and local bonds26 U.S.C. § 103
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Qualified lessee construction allowances for short-term leases26 U.S.C. § 110
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Losses26 U.S.C. § 165
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Charitable, etc., contributions and gifts26 U.S.C. § 170
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Incentive stock options26 U.S.C. § 422
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Deemed paid credit for subpart F inclusions26 U.S.C. § 960
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Election of mark to market for marketable stock26 U.S.C. § 1296
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Returns relating to certain life insurance contract transactions26 U.S.C. § 6050Y
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Clean vehicle credit26 U.S.C. § 30D
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Credit for carbon oxide sequestration26 U.S.C. § 45Q
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Amount of credit26 U.S.C. § 46
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Advanced manufacturing investment credit26 U.S.C. § 48D
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Arbitrage26 U.S.C. § 148
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Amortization of goodwill and certain other intangibles26 U.S.C. § 197
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Interest on education loans26 U.S.C. § 221
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Disallowance of certain entertainment, etc., expenses26 U.S.C. § 274
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Qualifications for tax credit employee stock ownership plans26 U.S.C. § 409
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Unrelated debt-financed income26 U.S.C. § 514
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Rules for allocation of basis26 U.S.C. § 755
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Rules for certain reserves26 U.S.C. § 807
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Special rules in case of foreign oil and gas income26 U.S.C. § 907
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Basis of property acquired from a decedent26 U.S.C. § 1014
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Special rules26 U.S.C. § 1298
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Definitions26 U.S.C. § 3401
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Extension of time for filing returns26 U.S.C. § 6081
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Renumbered § 45C]26 U.S.C. § 28
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Credit for production of clean hydrogen26 U.S.C. § 45V
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Energy credit26 U.S.C. § 48
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Limitation on credit26 U.S.C. § 904
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Qualified pension, profit-sharing, and stock bonus plans26 U.S.C. § 401
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Dependent care assistance programs26 U.S.C. § 129
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Special rules for nuclear decommissioning costs26 U.S.C. § 468A
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Mark to market accounting method for dealers in securities26 U.S.C. § 475
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Basis of distributed property other than money26 U.S.C. § 732
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Straddles26 U.S.C. § 1092
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Qualified electing fund26 U.S.C. § 1295
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Averaging of farm income26 U.S.C. § 1301
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Withholdable payments to foreign financial institutions26 U.S.C. § 1471
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Definitions26 U.S.C. § 1504
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Basis information to persons acquiring property from decedent26 U.S.C. § 6035
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Information with respect to certain foreign-owned corporations26 U.S.C. § 6038A
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Returns relating to cash received in trade or business, etc.26 U.S.C. § 6050I
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Credit for increasing research activities26 U.S.C. § 41
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Definitions and special rules26 U.S.C. § 150
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Passive activity losses and credits limited26 U.S.C. § 469
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Certain expenses for which credits are allowable26 U.S.C. § 280C
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Assumption of liability26 U.S.C. § 357
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Complete liquidations of subsidiaries26 U.S.C. § 332
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Distribution of stock and securities of a controlled corporation26 U.S.C. § 355
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Period for computation of taxable income26 U.S.C. § 441
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General rule for taxable year of deduction26 U.S.C. § 461
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Special rules for modified guaranteed contracts26 U.S.C. § 817A
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Treatment of variable contracts26 U.S.C. § 817
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Certain reinsurance agreements26 U.S.C. § 845
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Failure to file notice of redetermination of foreign tax26 U.S.C. § 6689
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Branch transactions26 U.S.C. § 987
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Qualified zone property defined26 U.S.C. § 1397D
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Withholdable payments to other foreign entities26 U.S.C. § 1472
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Liquidating, etc., transactions26 U.S.C. § 6043
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Verification of returns26 U.S.C. § 6065
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Mode or time of collection26 U.S.C. § 6302
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Transfer of certain credits26 U.S.C. § 6418
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American Opportunity and Lifetime Learning credits26 U.S.C. § 25A
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Refundable credit for coverage under a qualified health plan26 U.S.C. § 36B
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Clean electricity production credit26 U.S.C. § 45Y
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Other special rules26 U.S.C. § 50
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Treatment of community income26 U.S.C. § 66
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Basis to corporations26 U.S.C. § 362
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Election of taxable year other than required taxable year26 U.S.C. § 444
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Transactions between partner and partnership26 U.S.C. § 707
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Special allocation rules for certain asset acquisitions26 U.S.C. § 1060
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Discounted unpaid losses defined26 U.S.C. § 846
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Definitions and special rules26 U.S.C. § 864
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Capital asset defined26 U.S.C. § 1221
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Interest on tax deferral26 U.S.C. § 1291
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Passive foreign investment company26 U.S.C. § 1297
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Withholding of tax on nonresident aliens26 U.S.C. § 1441
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Returns as to interests in foreign partnerships26 U.S.C. § 6046A
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State and local income tax refunds26 U.S.C. § 6050E
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Returns relating to exchanges of certain partnership interests26 U.S.C. § 6050K
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Returns relating to higher education tuition and related expenses26 U.S.C. § 6050S
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Reporting of health insurance coverage26 U.S.C. § 6055
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Low-income housing credit26 U.S.C. § 42
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New markets tax credit26 U.S.C. § 45D
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Definitions and special rules26 U.S.C. § 414
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Qualified asset account; limitation on additions to account26 U.S.C. § 419A
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General rule for methods of accounting26 U.S.C. § 446
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Interest on certain deferred payments26 U.S.C. § 483
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Reserves for losses on loans of banks26 U.S.C. § 585
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Certain revocable trusts treated as part of estate26 U.S.C. § 645
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Insurance company taxable income26 U.S.C. § 832
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Income from sources within the United States26 U.S.C. § 861
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Treatment of certain foreign currency transactions26 U.S.C. § 988
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Functional currency26 U.S.C. § 985
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Other definitions and special rules26 U.S.C. § 1275
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Election to extend time for payment of tax on undistributed earnings26 U.S.C. § 1294
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Requirement to maintain minimum essential coverage26 U.S.C. § 5000A
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Returns by exempt organizations26 U.S.C. § 6033
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Information with respect to foreign financial assets26 U.S.C. § 6038D
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Returns relating to the cancellation of indebtedness by certain entities26 U.S.C. § 6050P
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Identifying numbers26 U.S.C. § 6109
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Elective payment of applicable credits26 U.S.C. § 6417
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Certain fringe benefits26 U.S.C. § 132
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Dependent defined26 U.S.C. § 152
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Interest26 U.S.C. § 163
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Bad debts26 U.S.C. § 166
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Special rules for credits and deductions26 U.S.C. § 642
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General rule for inventories26 U.S.C. § 471
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Political organizations26 U.S.C. § 527
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Special rules applicable to sections 661 and 66226 U.S.C. § 663
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Allowance of deductions and credits26 U.S.C. § 874
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Branch profits tax26 U.S.C. § 884
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Tax imposed on certain built-in gains26 U.S.C. § 1374
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Foreign tax-exempt organizations26 U.S.C. § 1443
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Valuation tables26 U.S.C. § 7520
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Losses on small business stock26 U.S.C. § 1244
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Distributions26 U.S.C. § 1368
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Definitions26 U.S.C. § 1473
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Information with respect to certain fines, penalties, and other amounts26 U.S.C. § 6050X
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Failure by corporation to pay estimated income tax26 U.S.C. § 6655