Internal Revenue Code · 26 U.S.C.
§ 167. Depreciation
Official text, no changes From the Office of the Law Revision Counsel, release point 119-121 (current through Public Law 119-121 (October 9, 2026)). Compare it with the official text at uscode.house.gov (external site).
Cite as 26 U.S.C. § 167
At a glance
Read from the text, the source credit and the official notes. Not part of the law.
- Status
- In force
- Enacted
- September 2, 1958 by Pub. L. 85–866
- Last amended
- December 29, 2007 by Pub. L. 110–172
- Amendments
- 29 dated changes in the source credit
- Length
- 9 subsections · 3,506 words · about 15 min to read
- Defines
- 7 terms
- Cross-references
- cites 19; cited by 42 Code sections and 118 other regulations
- Regulations
- 32 issued under this section
For determination of depreciation deduction in case of property to which section 168 applies, see section 168.
The basis on which exhaustion, wear and tear, and obsolescence are to be allowed in respect of any property shall be the adjusted basis provided in section 1011, for the purpose of determining the gain on the sale or other disposition of such property.
In the case of property held by one person for life with remainder to another person, the deduction shall be computed as if the life tenant were the absolute owner of the property and shall be allowed to the life tenant. In the case of property held in trust, the allowable deduction shall be apportioned between the income beneficiaries and the trustee in accordance with the pertinent provisions of the instrument creating the trust, or, in the absence of such provisions, on the basis of the trust income allocable to each. In the case of an estate, the allowable deduction shall be apportioned between the estate and the heirs, legatees, and devisees on the basis of the income of the estate allocable to each.
No depreciation deduction shall be allowed under this section (and no depreciation or amortization deduction shall be allowed under any other provision of this subtitle) to the taxpayer for any term interest in property for any period during which the remainder interest in such property is held (directly or indirectly) by a related person.
This subsection shall not apply to the holder of the dividend rights which were separated from any stripped preferred stock to which section 305(e)(1) applies.
The term “term interest in property” has the meaning given such term by section 1001(e)(2).
The term “related person” means any person bearing a relationship to the taxpayer described in subsection (b) or (e) of section 267.
The Secretary shall prescribe such regulations as may be necessary to carry out the purposes of this subsection, including regulations preventing avoidance of this subsection through cross-ownership arrangements or otherwise.
For purposes of this section, the term “computer software” has the meaning given to such term by section 197(e)(3)(B); except that such term shall not include any such software which is an amortizable section 197 intangible.
In the case of computer software which would be tax-exempt use property as defined in subsection (h) of section 168 if such section applied to computer software, the useful life under subparagraph (A) shall not be less than 125 percent of the lease term (within the meaning of section 168(i)(3)).
If a depreciation deduction is allowable under subsection (a) with respect to any property described in subparagraph (B), (C), or (D) of section 197(e)(4), such deduction shall be computed in accordance with regulations prescribed by the Secretary. If such property would be tax-exempt use property as defined in subsection (h) of section 168 if such section applied to such property, the useful life under such regulations shall not be less than 125 percent of the lease term (within the meaning of section 168(i)(3)).
If a depreciation deduction is allowable under subsection (a) with respect to any right described in section 197(e)(6), such deduction shall be computed by using the straight line method and a useful life of 108 months.
Paragraph (1)(D) shall not apply with respect to any property which had a cost basis of $100,000 or less.
For purposes of this subsection, except as provided in regulations, the term “recomputation year” means, with respect to any property, the 3d and the 10th taxable years beginning after the taxable year in which the property was placed in service, unless the actual income earned in connection with the property for the period before the close of such 3d or 10th taxable year is within 10 percent of the income earned in connection with the property for such period which was taken into account under paragraph (1)(A).
For purposes of this subsection, in the case of television and motion picture films, the income from the property shall include income from the exploitation of characters, designs, scripts, scores, and other incidental income associated with such films, but only to the extent that such income is earned in connection with the ultimate use of such items by, or the ultimate sale of merchandise to, persons who are not related persons (within the meaning of section 267(b)) to the taxpayer.
For purposes of subtitle F (other than sections 6654 and 6655), any interest required to be paid by the taxpayer under paragraph (1) for any recomputation year shall be treated as an increase in the tax imposed by this chapter for such year.
For purposes of this subsection, the income with respect to any property shall be the taxpayer’s gross income from such property.
For purposes of paragraph (2), determinations of the amount of income earned in connection with any property shall be made in the same manner as for purposes of applying the income forecast method; except that any income from the disposition of such property shall be taken into account.
Rules similar to the rules of section 460(b)(4) shall apply for purposes of this subsection.
For purposes of determining the depreciation deduction allowable with respect to a property under this subsection, the taxpayer may include participations and residuals with respect to such property in the adjusted basis of such property for the taxable year in which the property is placed in service, but only to the extent that such participations and residuals relate to income estimated (for purposes of this subsection) to be earned in connection with the property before the close of the 10th taxable year referred to in paragraph (1)(A).
For purposes of this paragraph, the term “participations and residuals” means, with respect to any property, costs the amount of which by contract varies with the amount of income earned in connection with such property.
If the adjusted basis of any property is determined under this paragraph, paragraph (4) shall be applied by substituting “for each taxable year in such period” for “for such period”.
Notwithstanding subparagraph (A), the taxpayer may exclude participations and residuals from the adjusted basis of such property and deduct such participations and residuals in the taxable year that such participations and residuals are paid.
Deductions computed in accordance with this paragraph shall be allowable notwithstanding paragraph (1)(B), section 263, 263A, 404, 419, or 461(h).
The Secretary shall prescribe appropriate adjustments to the basis of property and to the look-back method for the additional amounts allowable as a deduction solely by reason of this paragraph.
Except as provided in this paragraph, no depreciation or amortization deduction shall be allowed with respect to any expense to which subparagraph (A) applies.
The term “applicable musical property” means any musical composition (including any accompanying words), or any copyright with respect to a musical composition, which is property to which this subsection applies without regard to this paragraph.
An election under this paragraph shall be made at such time and in such form as the Secretary may prescribe and shall apply to all applicable musical property placed in service during the taxable year for which the election applies.
An election may not be made under this paragraph for any taxable year beginning after December 31, 2010.
Any geological and geophysical expenses paid or incurred in connection with the exploration for, or development of, oil or gas within the United States (as defined in section 638) shall be allowed as a deduction ratably over the 24-month period beginning on the date that such expense was paid or incurred.
For purposes of paragraph (1), any payment paid or incurred during the taxable year shall be treated as paid or incurred on the mid-point of such taxable year.
Except as provided in this subsection, no depreciation or amortization deduction shall be allowed with respect to such payments.
If any property with respect to which geological and geophysical expenses are paid or incurred is retired or abandoned during the 24-month period described in paragraph (1), no deduction shall be allowed on account of such retirement or abandonment and the amortization deduction under this subsection shall continue with respect to such payment.
In the case of a major integrated oil company, paragraphs (1) and (4) shall be applied by substituting “7-year” for “24 month”.
(Aug. 16, 1954, ch. 736, 68A Stat. 51; Pub. L. 85–866, title I, § 89(b), Sept. 2, 1958, 72 Stat. 1665; Pub. L. 87–834, § 13(b), (c)(1), Oct. 16, 1962, 76 Stat. 1034; Pub. L. 89–800, § 2, Nov. 8, 1966, 80 Stat. 1513; Pub. L. 90–26, §§ 1, 2(b), June 13, 1967, 81 Stat. 57, 58; Pub. L. 91–172, title IV, § 441(a), title V, § 521(a), (d), Dec. 30, 1969, 83 Stat. 625, 649, 653; Pub. L. 92–178, title I, § 109(a), Dec. 10, 1971, 85 Stat. 508; Pub. L. 93–625, § 3(c), Jan. 3, 1975, 88 Stat. 2109; Pub. L. 94–455, title II, §§ 202(c)(3), 203(a), title XIX, §§ 1901(a)(27), 1906(b)(13)(A), title XXI, § 2124(c)(1), (d)(1), Oct. 4, 1976, 90 Stat. 1530, 1768, 1834, 1918; Pub. L. 95–171, § 4(a), Nov. 12, 1977, 91 Stat. 1355; Pub. L. 95–600, title III, §§ 312(c)(4), 367, title VII, § 701(f)(4), (6), Nov. 6, 1978, 92 Stat. 2826, 2857, 2901, 2902; Pub. L. 95–615, § 7(a), Nov. 8, 1978, 92 Stat. 3098; Pub. L. 95–618, title III, § 301(d)(3), (e)(1), Nov. 9, 1978, 92 Stat. 3200, 3201; Pub. L. 96–541, §§ 2(c), (d), 3, Dec. 17, 1980, 94 Stat. 3204, 3205; Pub. L. 96–613, § 2(a), Dec. 28, 1980, 94 Stat. 3579; Pub. L. 97–34, title II, §§ 203(a)–(c)(1), (d), 209(d)(3), 212(d)(1), 264(a), Aug. 13, 1981, 95 Stat. 221, 222, 227, 239, 264; Pub. L. 97–424, title V, § 541(a)(2), Jan. 6, 1983, 96 Stat. 2192; Pub. L. 98–369, div. A, title X, § 1064, July 18, 1984, 98 Stat. 1047; Pub. L. 99–514, title II, § 201(d)(1), title XV, § 1511(c)(4), title XVIII, § 1809(d)(1), Oct. 22, 1986, 100 Stat. 2139, 2745, 2821; Pub. L. 100–647, title I, § 1002(a)(22), (24), (31), (i)(1), Nov. 10, 1988, 102 Stat. 3356, 3357, 3370; Pub. L. 101–239, title VII, §§ 7622(b)(1) [(d)(1)], 7645(a), Dec. 19, 1989, 103 Stat. 2378, 2381; Pub. L. 101–508, title XI, § 11812(a), (b)(1), Nov. 5, 1990, 104 Stat. 1388–534; Pub. L. 103–66, title XIII, §§ 13206(c)(2), 13261(b), (f)(1), Aug. 10, 1993, 107 Stat. 466, 538, 539; Pub. L. 104–188, title I, § 1604(a), Aug. 20, 1996, 110 Stat. 1836; Pub. L. 105–34, title X, § 1086(a), Aug. 5, 1997, 111 Stat. 957; Pub. L. 108–357, title II, § 242(a), (b), title VIII, § 847(b)(1), (2), Oct. 22, 2004, 118 Stat. 1438, 1439, 1601; Pub. L. 109–58, title XIII, § 1329(a), Aug. 8, 2005, 119 Stat. 1020; Pub. L. 109–135, title IV, § 412(r), Dec. 21, 2005, 119 Stat. 2638; Pub. L. 109–222, title II, § 207(a), title V, § 503(a), May 17, 2006, 120 Stat. 350, 354; Pub. L. 110–140, title XV, § 1502(a), Dec. 19, 2007, 121 Stat. 1800; Pub. L. 110–172, § 11(a)(13), Dec. 29, 2007, 121 Stat. 2485.)
Terms defined here
Where the text says “the term … means”. Select a term to jump to its definition.
Regulations under this section
Treasury regulations (26 CFR) issued under § 167
- § 1.167(a)-1 Depreciation in general.
- § 1.167(a)-2 Tangible property.
- § 1.167(a)-3 Intangibles.
- § 1.167(a)-4 Leased property.
- § 1.167(a)-5 Apportionment of basis.
- § 1.167(a)-5T Application of section 1060 to section 167 (temporary).
- § 1.167(a)-6 Depreciation in special cases.
- § 1.167(a)-7 Accounting for depreciable property.
- § 1.167(a)-8 Retirements.
- § 1.167(a)-9 Obsolescence.
- § 1.167(a)-10 When depreciation deduction is allowable.
- § 1.167(a)-11 Depreciation based on class lives and asset depreciation ranges for property placed in service after December 31, 1970.
- § 1.167(a)-12 Depreciation based on class lives for property first placed in service before January 1, 1971.
- § 1.167(a)-13T Certain elections for intangible property (temporary).
- § 1.167(a)-14 Treatment of certain intangible property excluded from section 197.
- § 1.167(b)-0 Methods of computing depreciation.
- § 1.167(b)-1 Straight line method.
- § 1.167(b)-2 Declining balance method.
- § 1.167(b)-3 Sum of the years-digits method.
- § 1.167(b)-4 Other methods.
- § 1.167(c)-1 Limitations on methods of computing depreciation under section 167(b) (2), (3), and (4).
- § 1.167(d)-1 Agreement as to useful life and rates of depreciation.
- § 1.167(e)-1 Change in method.
- § 1.167(f)-1 Reduction of salvage value taken into account for certain personal property.
- § 1.167(g)-1 Basis for depreciation.
- § 1.167(h)-1 Life tenants and beneficiaries of trusts and estates.
- § 1.167(i)-1 Depreciation of improvements in the case of mines, etc.
- § 1.167(l)-1 Limitations on reasonable allowance in case of property of certain public utilities.
- § 1.167(l)-2 Public utility property; election as to post-1969 property representing growth in capacity.
- § 1.167(l)-3 Multiple regulation, asset acquisitions, reorganizations, etc.
- § 1.167(l)-4 Public utility property; election to use asset depreciation range system.
- § 1.167(m)-1 Class lives.
Cross-references
Computed from the citations in the text of Title 26 and 26 CFR.
This section cites 19 other sections
- § 168 Accelerated cost recovery system
- § 1011 Adjusted basis for determining gain or loss
- § 273 Holders of life or terminable interest
- § 305(e) Distributions of stock and stock rights
- § 1001(e)(2) Determination of amount of and recognition of gain or loss
- § 267 Losses, expenses, and interest with respect to transactions between related taxpayers
- § 197 Amortization of goodwill and certain other intangibles
- § 461(h) General rule for taxable year of deduction
- § 460(b)(7) Special rules for long-term contracts
- § 1274(d) Determination of issue price in the case of certain debt instruments issued for property
- § 6654 Failure by individual to pay estimated income tax
- § 6655 Failure by corporation to pay estimated income tax
- § 263 Capital expenditures
- § 263A(h) Capitalization and inclusion in inventory costs of certain expenses
- § 638 Continental shelf areas
- § 613A Limitations on percentage depletion in case of oil and gas wells
- § 52 Special rules
- § 448(c)(3)(B) Limitation on use of cash method of accounting
- § 611 Allowance of deduction for depletion
Cited by 42 Code sections
- § 56(a)(1)(A)(i) Adjustments in computing alternative minimum taxable income
- § 56A(c)(13)(A)(i) Adjusted financial statement income
- § 62(a)(5) Adjusted gross income defined
- § 142(i)(2)(A) Exempt facility bond
- § 168(a) Accelerated cost recovery system
- § 169(a) Amortization of pollution control facilities
- § 172(d)(4)(A)(i) Net operating loss deduction
- § 174(c)(1) Amortization of research and experimental expenditures
- § 174A(c)(1) Domestic research or experimental expenditures
- § 175(c)(1)(A) Soil and water conservation expenditures; endangered species recovery expenditures
- § 179(d)(1)(A)(ii) Election to expense certain depreciable business assets
- § 179B(c)(2) Deduction for capital costs incurred in complying with Environmental Protection Agency sulfur regulations
- § 181(d)(3)(B) Treatment of certain qualified productions
- § 197(f)(7) Amortization of goodwill and certain other intangibles
- § 198(b)(2) Expensing of environmental remediation costs
- § 199A(b)(6)(A) Qualified business income
- § 216(c)(1) Deduction of taxes, interest, and business depreciation by cooperative housing corporation tenant-stockholder
- § 263A(c)(3) Capitalization and inclusion in inventory costs of certain expenses
- § 312(k)(2) Effect on earnings and profits
- § 381(c)(6) Carryovers in certain corporate acquisitions
- § 453(f)(7) Installment method
- § 470(c)(2)(A)(ii) Limitation on deductions allocable to property used by governments or other tax-exempt entities
- § 514(a)(3) Unrelated debt-financed income
- § 542(d)(2)(B) Definition of personal holding company
Show 18 more
- § 543(a)(4)(C)(iii) Personal holding company income
- § 545(b)(6) Undistributed personal holding company income
- § 611(c) Allowance of deduction for depletion
- § 616(a) Development expenditures
- § 617(a)(1) Deduction and recapture of certain mining exploration expenditures
- § 642(e) Special rules for credits and deductions
- § 818(b)(1)(A) Other definitions and special rules
- § 832(c)(8) Insurance company taxable income
- § 834(c)(4) Determination of taxable investment income
- § 1016(a)(2)(B) Adjustments to basis
- § 1221(a)(2) Capital asset defined
- § 1231(b)(1) Property used in the trade or business and involuntary conversions
- § 1239(a) Gain from sale of depreciable property between certain related taxpayers
- § 1245(a)(3) Gain from dispositions of certain depreciable property
- § 1250(a)(1)(B)(iii) Gain from dispositions of certain depreciable realty
- § 4940(c)(3)(B)(i) Excise tax based on investment income
- § 7518(a)(1)(B) Tax incentives relating to merchant marine capital construction funds
- § 7701(e)(5)(B) Definitions
Cited in 118 regulations not issued under it
- § 1.45D-1 New markets tax credit.
- § 1.45G-1 Railroad track maintenance credit.
- § 1.46-3 Qualified investment.
- § 1.46-4 Limitations with respect to certain persons.
- § 1.46-6 Limitation in case of certain regulated companies.
- § 1.47-1 Recomputation of credit allowed by section 38.
- § 1.47-2 “Disposition” and “cessation”.
- § 1.47-3 Exceptions to the application of § 1.47-1.
- § 1.48-1 Definition of section 38 property.
- § 1.48-4 Election of lessor of new section 38 property to treat lessee as purchaser.
- § 1.48-9 Definition of energy property.
- § 1.48-11 Qualified rehabilitated building; expenditures incurred before January 1, 1982.
- § 1.48E-2 Qualified investments in qualified facilities and EST for purposes of section 48E.
- § 1.57-1 Items of tax preference defined.
- § 1.58-2 General rules for conduit entities; partnerships and partners.
- § 1.58-3 Estates and trusts.
- § 1.59A-3 Base erosion payments and base erosion tax benefits.
- § 1.62-1T Adjusted gross income (temporary).
- § 1.103-8 Interest on bonds to finance certain exempt facilities.
- § 1.162-1 Business expenses.
- § 1.163(j)-1 Definitions.
- § 1.163(j)-2 Deduction for business interest expense limited.
- § 1.163(j)-10 Allocation of interest expense, interest income, and other items of expense and gross income to an excepted trade or business.
- § 1.165-2 Obsolescence of nondepreciable property.
Show 94 more
- § 1.168-5 Special rules.
- § 1.168(a)-1 Modified accelerated cost recovery system.
- § 1.168(b)-1 Definitions.
- § 1.168(d)-1 Applicable conventions—half-year and mid-quarter conventions.
- § 1.168(h)-1 Like-kind exchanges involving tax-exempt use property.
- § 1.168(i)-1 General asset accounts.
- § 1.168(i)-4 Changes in use.
- § 1.168(i)-6 Like-kind exchanges and involuntary conversions.
- § 1.168(k)-1 Additional first year depreciation deduction.
- § 1.168(k)-2 Additional first year depreciation deduction for property acquired and placed in service after September 27, 2017.
- § 1.168A-3 Election to discontinue amortization.
- § 1.168A-6 Depreciation of portion of emergency facility not subject to amortization.
- § 1.168A-7 Payment by United States of unamortized cost of facility.
- § 1.169-1 Amortization of pollution control facilities.
- § 1.169-2 Definitions.
- § 1.169-3 Amortizable basis.
- § 1.172-3 Net operating loss in case of a taxpayer other than a corporation.
- § 1.174-2 Definition of research and experimental expenditures.
- § 1.174-4 Treatment as deferred expenses.
- § 1.175-2 Definition of soil and water conservation expenditures.
- § 1.178-1 Depreciation or amortization of improvements on leased property and cost of acquiring a lease.
- § 1.181-1 Deduction for qualified film and television production costs.
- § 1.181-3 Qualified film or television production.
- § 1.182-3 Definition, exceptions, etc., relating to deductible expenditures.
- § 1.187-1 Amortization of certain coal mine safety equipment.
- § 1.187-2 Definitions.
- § 1.188-1 Amortization of certain expenditures for qualified on-the-job training and child care facilities.
- § 1.197-0 Table of contents.
- § 1.197-1T Certain elections for intangible property (temporary).
- § 1.197-2 Amortization of goodwill and certain other intangibles.
- § 1.199A-2 Determination of W-2 wages and unadjusted basis immediately after acquisition of qualified property.
- § 1.216-2 Treatment as property subject to depreciation.
- § 1.250(b)-2 Qualified business asset investment (QBAI).
- § 1.263(a)-2 Amounts paid to acquire or produce tangible property.
- § 1.312-15 Effect of depreciation on earnings and profits.
- § 1.381(c)(6)-1 Depreciation method.
- § 1.409A-1 Definitions and covered plans.
- § 1.446-1 General rule for methods of accounting.
- § 1.461-1 General rule for taxable year of deduction.
- § 1.469-2T Passive activity loss (temporary).
- § 1.501(r)-2 Failures to satisfy section 501(r).
- § 1.512(a)-1 Definition.
- § 1.514(a)-1 Unrelated debt-financed income and deductions.
- § 1.514(a)-2 Business lease rents and deductions for taxable years beginning before January 1, 1970.
- § 1.611-5 Depreciation of improvements.
- § 1.614-2 Election to aggregate separate operating mineral interests under section 614(b) prior to its amendment by Revenue Act of 1964.
- § 1.614-3 Rules relating to separate operating mineral interests in the case of mines.
- § 1.614-8 Elections with respect to separate operating mineral interests for taxable years beginning after December 31, 1963, in the case of oil and gas wells.
- § 1.615-1 Pre-1970 exploration expenditures.
- § 1.616-1 Development expenditures.
- § 1.617-1 Exploration expenditures.
- § 1.642(e)-1 Depreciation and depletion.
- § 1.642(f)-1 Amortization deductions.
- § 1.652(c)-4 Illustration of the provisions of sections 651 and 652.
- § 1.804-4 Investment yield of a life insurance company.
- § 1.817-2 Treatment of capital gains and losses.
- § 1.818-2 Accounting provisions.
- § 1.861-10T Special allocations of interest expense (temporary).
- § 1.861-15 Income from certain aircraft or vessels first leased on or before December 28, 1980.
- § 1.871-10 Election to treat real property income as effectively connected with U.S. business.
- § 1.904(f)-2 Recapture of overall foreign losses.
- § 1.907(c)-1 Definitions relating to FOGEI and FORI (for taxable years beginning after December 31, 1982).
- § 1.951A-3 Qualified business asset investment.
- § 1.954-2 Foreign personal holding company income.
- § 1.964-1 Determination of the earnings and profits of a foreign corporation.
- § 1.994-1 Inter-company pricing rules for DISC's.
- § 1.995-5 Foreign investment attributable to producer's loans.
- § 1.1014-4 Uniformity of basis; adjustment to basis.
- § 1.1014-6 Special rule for adjustments to basis where property is acquired from a decedent prior to his death.
- § 1.1016-3 Exhaustion, wear and tear, obsolescence, amortization, and depletion for periods since February 28, 1913.
- § 1.1071-3 Reduction of basis of property pursuant to election under section 1071.
- § 1.1221-1 Meaning of terms.
- § 1.1231-1 Gains and losses from the sale or exchange of certain property used in the trade or business.
- § 1.1239-1 Gain from sale or exchange of depreciable property between certain related taxpayers after October 4, 1976.
- § 1.1239-2 Gain from sale or exchange of depreciable property between certain related taxpayers on or before October 4, 1976.
- § 1.1245-2 Definition of recomputed basis.
- § 1.1245-3 Definition of section 1245 property.
- § 1.1245-4 Exceptions and limitations.
- § 1.1250-1 Gain from dispositions of certain depreciable realty.
- § 1.1250-2 Additional depreciation defined.
- § 1.1254-1 Treatment of gain from disposition of natural resource recapture property.
- § 1.1385-1 Amounts includible in patron's gross income.
- § 1.1400L(b)-1 Additional first year depreciation deduction for qualified New York Liberty Zone property.
- § 1.1552-1 Earnings and profits.
- § 1.6417-2 Rules for making elective payment elections.
- § 3.0 Statutory provisions; section 607, Merchant Marine Act, 1936, as amended.
- § 3.2 Ceiling on deposits.
- § 3.6 Tax treatment of qualified withdrawals.
- § 4.954-2 Foreign personal holding company income; taxable years beginning after December 31, 1986.
- § 9.1 Investment credit—public utility property elections.
- § 12.3 Investment credit, public utility property elections.
- § 53.4940-1 Excise tax on net investment income.
- § 301.9100-8 Time and manner of making certain elections under the Technical and Miscellaneous Revenue Act of 1988.
- § 301.9100-12T Various elections under the Tax Reform Act of 1976.
Amendment history
From the source credit and the official notes, newest first.
- Amended by Pub. L. 110–172Parts changed in 2007: (g)(8)(C)(ii)(II) (h)(5)(A)
- Amended by Pub. L. 110–140
- Amended by Pub. L. 109–222Parts changed in 2006: (g)(8) (h)(5)
- Amended by Pub. L. 109–135Parts changed in 2005: (f)(3) (h)
- Amended by Pub. L. 109–58
- Amended by Pub. L. 108–357Parts changed in 2004: (f)(1)(C) (f)(2) (g)(5)(E) (g)(7)
- Amended by Pub. L. 105–34Parts changed in 1997: (g)(6)
- Amended by Pub. L. 104–188Parts changed in 1996: (g)
- Amended by Pub. L. 103–66Parts changed in 1993: (c) (e)(2) (f) (g)
- Amended by Pub. L. 101–508Parts changed in 1990: (b) (c) (d) (e) (e)(3)(B) (e)(4)(B) (f) (g) (j) (k) (l) (m) (p) (q) (r)
- Amended by Pub. L. 101–239Parts changed in 1989: (r)
- Amended by Pub. L. 100–647Parts changed in 1988: (a) (d) (l)(3)(G) (r)
- Amended by Pub. L. 99–514Parts changed in 1986: (c) (m)(4) (q)(2)(B)
- Amended by Pub. L. 98–369Parts changed in 1984: (k)(1)
- Amended by Pub. L. 97–424Parts changed in 1983: (l)(3)(G)
- Amended by Pub. L. 97–34Parts changed in 1981: (a) (d) (k)(2) (l)(3)(C) (m)(4) (n) (r) (s)
- Amended by Pub. L. 96–613Parts changed in 1980: (k) (n)(4) (o)(3) (r)
- Amended by Pub. L. 96–541
- Amended by Pub. L. 95–618Parts changed in 1978: (i) (k)(1) (n) (o) (p) (q) (r)
- Amended by Pub. L. 95–615
- Amended by Pub. L. 95–600
- Amended by Pub. L. 95–171Parts changed in 1977: (k)
- Amended by Pub. L. 94–455Parts changed in 1976: (b) (d) (e) (f)(1) (f)(2) (i) (j) (k)(1) (k)(2)(A) (k)(3)(B) (k)(3)(D) (l)(3)(F) (l)(4)(A) (l)(5) (m) (n) (o) (p)
- Amended by Pub. L. 93–625Parts changed in 1975: (k)(1)
- Amended by Pub. L. 92–178Parts changed in 1971: (m)
- Amended by Pub. L. 91–172Parts changed in 1969: (e)(3) (j) (l) (m)
- Amended by Pub. L. 90–26Parts changed in 1967: (i)(1) (i)(3)
- Amended by Pub. L. 89–800Parts changed in 1966: (i)
- Amended by Pub. L. 87–834Parts changed in 1962: (e) (f)
- Enacted by Pub. L. 85–866Parts changed in 1958: (d)
Where it sits in the Code
- Subtitle A Income Taxes
- Chapter 1 NORMAL TAXES AND SURTAXES
- Subchapter B Computation of Taxable Income
- Part VI ITEMIZED DEDUCTIONS FOR INDIVIDUALS AND CORPORATIONS
Nearby sections
Official notes
The Law Revision Counsel's notes for this section (amendments, effective dates and related laws) are long, so they have their own page.