Code of Federal Regulations · Section
§ 1.441-1 — -1 Period For Computation Of Taxable Income
26 C.F.R. § 1.441-1
(a) Computation of taxable income—(1) In general. Taxable income must be computed and a return must be made for a period known as the taxable year. For rules relating to methods of accounting, the taxable year for which items of gross income are included and deductions are taken, inventories, and adjustments, see parts II and III (section 446 and following), subchapter E, chapter 1 of the Internal Revenue Code, and the regulations thereunder.
(2) Length of taxable year. Except as otherwise provided in the Internal Revenue Code and the regulations thereunder (e.g., § 1.441-2 regarding 52-53-week taxable years), a taxable year may not cover a period of more than 12 calendar months.
(b) General rules and definitions. The general rules and definitions in this paragraph (b) apply for purposes of sections 441 and 442 and the regulations thereunder.
(1) Taxable year. Taxable year means—
(i) The period for which a return is made, if a return is made for a period of less than 12 months (short period). See section 443 and the regulations thereunder;
(ii) Except as provided in paragraph (b)(1)(i) of this section, the taxpayer's required taxable year (as defined in paragraph (b)(2) of this section), if applicable;
(iii) Except as provided in paragraphs (b)(1)(i) and (ii) of this section, the taxpayer's annual accounting period (as defined in paragraph (b)(3) of this section), if it is a calendar year or a fiscal year; or
(iv) Except as provided in paragraphs (b)(1)(i) and (ii) of this section, the calendar year, if the taxpayer keeps no books, does not have an annual accounting period, or has an annual accounting period that does not qualify as a fiscal year.
(2) Required taxable year—(i) In general. Certain taxpayers must use the particular taxable year that is required under the Internal Revenue Code and the regulations thereunder (the required taxable year). For example, the required taxable year is—
(A) [Reserved]
(B) In the case of a personal service corporation (PSC), the taxable year determined under section 441(i) and § 1.441-3;
(C) In the case of a nuclear decommissioning fund, the taxable year determined under § 1.468A-4(c)(1);
(D) In the case of a designated settlement fund or a qualified settlement fund, the taxable year determined under § 1.468B-2(j);
(E) In the case of a common trust fund, the taxable year determined under section 584(i);
(F) In the case of certain trusts, the taxable year determined under section 644;
(G) In the case of a partnership, the taxable year determined under section 706 and § 1.706-1;
(H) In the case of an insurance company, the taxable year determined under section 843 and § 1.1502-76(a)(2);
(I) In the case of a real estate investment trust, the taxable year determined under section 859;
(J) In the case of a real estate mortgage investment conduit, the taxable year determined under section 860D(a)(5) and § 1.860D-1(b)(6);
(K) In the case of a specified foreign corporation, the taxable year determined under section 898(c)(1)(A);
(L) In the case of an S corporation, the taxable year determined under section 1378 and § 1.1378-1; or
(M) In the case of a member of an affiliated group that makes a consolidated return, the taxable year determined under § 1.1502-76.
(ii) Exceptions. Notwithstanding paragraph (b)(2)(i) of this section, the following taxpayers may have a taxable year other than their required taxable year:
(A) 52-53-week taxable years. Certain taxpayers may elect to use a 52-53-week taxable year that ends with reference to their required taxable year. See, for example, §§ 1.441-3 (PSCs), 1.706-1 (partnerships), 1.1378-1 (S corporations), and 1.1502-76(a)(1) (members of a consolidated group).
(B) Partnerships, S corporations, and PSCs. A partnership, S corporation, or PSC may use a taxable year other than its required taxable year if the taxpayer elects to use a taxable year other than its required taxable year under section 444, elects a 52-53-week taxable year that ends with reference to its required taxable year as provided in paragraph (b)(2)(ii)(A) of this section or to a taxable year elected under section 444, or establishes a business purpose to the satisfaction of the Commissioner under section 442 (such as a grandfathered fiscal year).
(C) Specified foreign corporations. A specified foreign corporation (as defined in section 898(b)) may use a taxable year other than its required taxable year if it elects a 52-53-week taxable year that ends with reference to its required taxable year as provided in paragraph (b)(2)(ii)(A) of this section or makes a one-month deferral election under section 898(c)(1)(B).
(3) Annual accounting period. Annual accounting period means the annual period (calendar year or fiscal year) on the basis of which the taxpayer regularly computes its income in keeping its books.
(4) Calendar year. Calendar year means a period of 12 consecutive months ending on December 31. A taxpayer who has not established a fiscal year must make its return on the basis of a calendar year.
(5) Fiscal year—(i) Definition. Fiscal year means—
(A) A period of 12 consecutive months ending on the last day of any month other than December; or
(B) A 52-53-week taxable year, if such period has been elected by the taxpayer. See § 1.441-2.
(ii) Recognition. A fiscal year will be recognized only if the books of the taxpayer are kept in accordance with such fiscal year.
(6) Grandfathered fiscal year. Grandfathered fiscal year means a fiscal year (other than a year that resulted in a three month or less deferral of income) that a partnership or an S corporation received permission to use on or after July 1, 1974, by a letter ruling (i.e., not by automatic approval).
(7) Books. Books include the taxpayer's regular books of account and such other records and data as may be necessary to support the entries on the taxpayer's books and on the taxpayer's return, as for example, a reconciliation of any difference between such books and the taxpayer's return. Records that are sufficient to reflect income adequately and clearly on the basis of an annual accounting period will be regarded as the keeping of books. See section 6001 and the regulations thereunder for rules relating to the keeping of books and records.
(8) Taxpayer. Taxpayer has the same meaning as the term person as defined in section 7701(a)(1) (e.g., an individual, trust, estate, partnership, association, or corporation) rather than the meaning of the term taxpayer as defined in section 7701(a)(14) (any person subject to tax).
(c) Adoption of taxable year—(1) In general. Except as provided in paragraph (c)(2) of this section, a new taxpayer may adopt any taxable year that satisfies the requirements of section 441 and the regulations thereunder without the approval of the Commissioner. A taxable year of a new taxpayer is adopted by filing its first Federal income tax return using that taxable year. The filing of an application for automatic extension of time to file a Federal income tax return (e.g., Form 7004, “Application for Automatic Extension of Time to File Corporation Income Tax Return”), the filing of an application for an employer identification number (i.e., Form SS-4, “Application for Employer Identification Number”), or the payment of estimated taxes, for a particular taxable year do not constitute an adoption of that taxable year.
(2) Approval required—(i) Taxpayers with required taxable years. A newly-formed partnership, S corporation, or PSC that wants to adopt a taxable year other than its required taxable year, a taxable year elected under section 444, or a 52-53-week taxable year that ends with reference to its required taxable year or a taxable year elected under section 444 must establish a business purpose and obtain the approval of the Commissioner under section 442.
(ii) Taxpayers without books. A taxpayer that must use a calendar year under section 441(g) and paragraph (f) of this section may not adopt a fiscal year without obtaining the approval of the Commissioner.
(d) Retention of taxable year. In certain cases, a partnership, S corporation, electing S corporation, or PSC will be required to change its taxable year unless it obtains the approval of the Commissioner under section 442, or makes an election under section 444, to retain its current taxable year. For example, a corporation using a June 30 fiscal year that either becomes a PSC or elects to be an S corporation and, as a result, is required to use the calendar year under section 441(i) or 1378, respectively, must obtain the approval of the Commissioner to retain its current fiscal year. Similarly, a partnership using a taxable year that corresponds to its required taxable year must obtain the approval of the Commissioner to retain such taxable year if its required taxable year changes as a result of a change in ownership. However, a partnership that previously established a business purpose to the satisfaction of the Commissioner to use a taxable year is not required to obtain the approval of the Commissioner if its required taxable year changes as a result of a change in ownership.
(e) Change of taxable year. Once a taxpayer has adopted a taxable year, such taxable year must be used in computing taxable income and making returns for all subsequent years unless the taxpayer obtains approval from the Commissioner to make a change or the taxpayer is otherwise authorized to change without the approval of the Commissioner under the Internal Revenue Code (e.g., section 444 or 859) or the regulations thereunder.
(f) Obtaining approval of the Commissioner or making a section 444 election. See § 1.442-1(b) for procedures for obtaining approval of the Commissioner (automatically or otherwise) to adopt, change, or retain an annual accounting period. See §§ 1.444-1T and 1.444-2T for qualifications, and 1.444-3T for procedures, for making an election under section 444.
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