Title 26Internal Revenue CodeRelease 119-73

§1233 Gains and losses from short sales

Title 26 › Subtitle Subtitle A— - Income Taxes › Chapter CHAPTER 1— - NORMAL TAXES AND SURTAXES › Subchapter Subchapter P— - Capital Gains and Losses › Part PART IV— - SPECIAL RULES FOR DETERMINING CAPITAL GAINS AND LOSSES › § 1233

Last updated Apr 6, 2026|Official source

Summary

Treat gains or losses from a short sale as capital gain or loss when the item used to close the short sale is a capital asset for you. If you owned the same or very similar property for not more than 1 year on the date you made the short sale, or you buy such property after the short sale but before it is closed, any gain on closing is treated as short-term (held 1 year or less). The holding time of those matching items is treated as starting on the date the short sale is closed (or on the date you sell or give them away), and that rule applies in the order you acquired the items, but only up to the amount you sold short. If you held the matching property for more than 1 year on the short sale date, then any loss when you close the short sale is treated as long-term (held more than 1 year). A same-day option to sell that is tied to property you bought that day is not covered by the short-term rule; if you later don’t use the option, its cost is added to the property’s basis (this applies to options bought after August 16, 1954). The rules only cover stocks, securities (including “when issued”), and commodity futures that are capital assets, with some exclusions. Securities futures that give or take identical property count as identical, and entering a securities futures contract to sell counts as a short sale. Different delivery months for commodity futures are not “substantially identical.” Special rules apply to dealers in securities, to arbitrage transactions (which must be clearly recorded), and hedging in commodity futures is excluded. If property you sold short becomes substantially worthless while the short sale is open, the IRS has longer to assess tax: either 3 years after you notify the IRS in the required way or 6 years after the return was filed, whichever comes first.

Full Legal Text

Title 26, §1233

Internal Revenue Code — Source: USLM XML via OLRC

(a)For purposes of this subtitle, gain or loss from the short sale of property shall be considered as gain or loss from the sale or exchange of a capital asset to the extent that the property, including a commodity future, used to close the short sale constitutes a capital asset in the hands of the taxpayer.
(b)If gain or loss from a short sale is considered as gain or loss from the sale or exchange of a capital asset under subsection (a) and if on the date of such short sale substantially identical property has been held by the taxpayer for not more than 1 year (determined without regard to the effect, under paragraph (2) of this subsection, of such short sale on the holding period), or if substantially identical property is acquired by the taxpayer after such short sale and on or before the date of the closing thereof—
(1)any gain on the closing of such short sale shall be considered as a gain on the sale or exchange of a capital asset held for not more than 1 year (notwithstanding the period of time any property used to close such short sale has been held); and
(2)the holding period of such substantially identical property shall be considered to begin (notwithstanding section 1223, relating to the holding period of property) on the date of the closing of the short sale, or on the date of a sale, gift, or other disposition of such property, whichever date occurs first. This paragraph shall apply to such substantially identical property in the order of the dates of the acquisition of such property, but only to so much of such property as does not exceed the quantity sold short.
(c)Subsection (b) shall not include an option to sell property at a fixed price acquired on the same day on which the property identified as intended to be used in exercising such option is acquired and which, if exercised, is exercised through the sale of the property so identified. If the option is not exercised, the cost of the option shall be added to the basis of the property with which the option is identified. This subsection shall apply only to options acquired after August 16, 1954.
(d)If on the date of such short sale substantially identical property has been held by the taxpayer for more than 1 year, any loss on the closing of such short sale shall be considered as a loss on the sale or exchange of a capital asset held for more than 1 year (notwithstanding the period of time any property used to close such short sale has been held, and notwithstanding section 1234).
(e)(1)Subsection (b)(1) or (d) shall not apply to the gain or loss, respectively, on any quantity of property used to close such short sale which is in excess of the quantity of the substantially identical property referred to in the applicable subsection.
(2)For purposes of subsections (b) and (d)—
(A)the term “property” includes only stocks and securities (including stocks and securities dealt with on a “when issued” basis), and commodity futures, which are capital assets in the hands of the taxpayer, but does not include any position to which section 1092(b) applies;
(B)in the case of futures transactions in any commodity on or subject to the rules of a board of trade or commodity exchange, a commodity future requiring delivery in 1 calendar month shall not be considered as property substantially identical to another commodity future requiring delivery in a different calendar month;
(C)in the case of a short sale of property by an individual, the term “taxpayer”, in the application of this subsection and subsections (b) and (d), shall be read as “taxpayer or his spouse”; but an individual who is legally separated from the taxpayer under a decree of divorce or of separate maintenance shall not be considered as the spouse of the taxpayer;
(D)a securities futures contract (as defined in section 1234B) to acquire substantially identical property shall be treated as substantially identical property; and
(E)entering into a securities futures contract (as so defined) to sell shall be considered to be a short sale, and the settlement of such contract shall be considered to be the closing of such short sale.
(3)Where the taxpayer enters into 2 commodity futures transactions on the same day, one requiring delivery by him in one market and the other requiring delivery to him of the same (or substantially identical) commodity in the same calendar month in a different market, and the taxpayer subsequently closes both such transactions on the same day, subsections (b) and (d) shall have no application to so much of the commodity involved in either such transaction as does not exceed in quantity the commodity involved in the other.
(4)(A)In the case of a taxpayer who is a dealer in securities (within the meaning of section 1236)—
(i)if, on the date of a short sale of stock, substantially identical property which is a capital asset in the hands of the taxpayer has been held for not more than 1 year, and
(ii)if such short sale is closed more than 20 days after the date on which it was made,
(B)For purposes of subparagraph (A)—
(i)the last sentence of subsection (b) applies; and
(ii)the term “stock” means any share or certificate of stock in a corporation, any bond or other evidence of indebtedness which is convertible into any such share or certificate, or any evidence of an interest in, or right to subscribe to or purchase, any of the foregoing.
(f)In the case of a short sale which had been entered into as an arbitrage operation, to which sale the rule of subsection (b)(2) would apply except as otherwise provided in this subsection—
(1)subsection (b)(2) shall apply first to substantially identical assets acquired for arbitrage operations held at the close of business on the day such sale is made, and only to the extent that the quantity sold short exceeds the substantially identical assets acquired for arbitrage operations held at the close of business on the day such sale is made, shall the holding period of any other such identical assets held by the taxpayer be affected;
(2)in the event that assets acquired for arbitrage operations are disposed of in such manner as to create a net short position in assets acquired for arbitrage operations, such net short position shall be deemed to constitute a short sale made on that day;
(3)for the purpose of paragraphs (1) and (2) of this subsection the taxpayer will be deemed as of the close of any business day to hold property which he is or will be entitled to receive or acquire by virtue of any other asset acquired for arbitrage operations or by virtue of any contract he has entered into in an arbitrage operation; and
(4)for the purpose of this subsection arbitrage operations are transactions involving the purchase and sale of assets for the purpose of profiting from a current difference between the price of the asset purchased and the price of the asset sold, and in which the asset purchased, if not identical to the asset sold, is such that by virtue thereof the taxpayer is, or will be, entitled to acquire assets identical to the assets sold. Such operations must be clearly identified by the taxpayer in his records as arbitrage operations on the day of the transaction or as soon thereafter as may be practicable. Assets acquired for arbitrage operations will include stocks and securities and the right to acquire stocks and securities.
(g)This section shall not apply in the case of a hedging transaction in commodity futures.
(h)(1)If—
(A)the taxpayer enters into a short sale of property, and
(B)such property becomes substantially worthless,
(2)If property becomes substantially worthless during a taxable year and any short sale of such property remains open at the time such property becomes substantially worthless, then—
(A)the statutory period for the assessment of any deficiency attributable to any part of the gain on such transaction shall not expire before the earlier of—
(i)the date which is 3 years after the date the Secretary is notified by the taxpayer (in such manner as the Secretary may by regulations prescribe) of the substantial worthlessness of such property, or
(ii)the date which is 6 years after the date the return for such taxable year is filed, and
(B)such deficiency may be assessed before the date applicable under subparagraph (A) notwithstanding the provisions of any other law or rule of law which would otherwise prevent such assessment.

Legislative History

Notes & Related Subsidiaries

Editorial Notes

Amendments

2002—Subsec. (e)(2)(E). Pub. L. 107–147 added subpar. (E). 2000—Subsec. (e)(2)(D). Pub. L. 106–554 added subpar. (D). 1997—Subsec. (h). Pub. L. 105–34 added subsec. (h). 1984—Subsecs. (b), (d), (e)(4)(A)(i). Pub. L. 98–369 substituted “6 months” for “1 year” wherever appearing, applicable to property acquired after June 22, 1984, and before Jan. 1, 1988. See

Effective Date

of 1984 Amendment note below. 1981—Subsec. (e)(2)(A). Pub. L. 97–34 inserted “, but does not include any position to which section 1092(b) applies” after “taxpayer”. 1976—Subsec. (b). Pub. L. 94–455, § 1402(b)(2), provided that “9 months” would be changed to “1 year”. Pub. L. 94–455, § 1402(b)(1)(T), (2), provided that “6 months” would be changed to “9 months” for taxable years beginning in 1977. Subsec. (c). Pub. L. 94–455, § 1901(a)(137), substituted “August 16, 1954” for “the date of enactment of this title”. Subsecs. (d), (e)(4)(A)(i). Pub. L. 94–455, § 1402(b)(2), provided that “9 months” would be changed to “1 year”. Pub. L. 94–455, § 1402(b)(1)(T), provided that “6 months” would be changed to “9 months” for taxable years beginning in 1977. 1958—Subsec. (a). Pub. L. 85–866, § 52(b), struck out “, other than a hedging transaction in commodity futures,” after “sale of property”. Subsec. (e)(4). Pub. L. 85–866, § 52(a), added par. (4). Subsec. (g). Pub. L. 85–866, § 52(b), added subsec. (g). 1955—Subsec. (f). Act Aug. 12, 1955, added subsec. (f).

Statutory Notes and Related Subsidiaries

Effective Date

of 2002 AmendmentAmendment by Pub. L. 107–147 effective as if included in the provisions of the Community Renewal Tax Relief Act of 2000 [H.R. 5662, as enacted by Pub. L. 106–554], to which such amendment relates, see section 412(e) of Pub. L. 107–147, set out as a note under section 151 of this title.

Effective Date

of 1997 Amendment Pub. L. 105–34, title X, § 1003(b)(2), Aug. 5, 1997, 111 Stat. 910, provided that: “The amendment made by paragraph (1) [amending this section] shall apply to property which becomes substantially worthless after the date of the enactment of this Act [Aug. 5, 1997].”

Effective Date

of 1984 AmendmentAmendment by Pub. L. 98–369 applicable to property acquired after June 22, 1984, and before Jan. 1, 1988, see section 1001(e) of Pub. L. 98–369, set out as a note under section 166 of this title.

Effective Date

of 1981 AmendmentAmendment by Pub. L. 97–34 applicable to property acquired and positions established by the taxpayer after
June 23, 1981, in taxable years ending after such date, and applicable when so elected with respect to property held on
June 23, 1981, see section 508 of Pub. L. 97–34, set out as an

Effective Date

note under section 1092 of this title.

Effective Date

of 1976 Amendment Pub. L. 94–455, title XIV, § 1402(b)(1), Oct. 4, 1976, 90 Stat. 1731, provided that the amendment made by that section is effective with respect to taxable years beginning in 1977. Pub. L. 94–455, title XIV, § 1402(b)(2), Oct. 4, 1976, 90 Stat. 1732, provided that the amendment made by that section is effective with respect to taxable years beginning after Dec. 31, 1977. Amendment by section 1901(a)(137) of Pub. L. 94–455 applicable with respect to taxable years beginning after Dec. 31, 1976, see section 1901(d) of Pub. L. 94–455, set out as a note under section 2 of this title.

Effective Date

of 1958 AmendmentAmendment by section 52(b) of Pub. L. 85–866 applicable to taxable years beginning after Dec. 31, 1953, and ending after Aug. 16, 1954, see section 1(c)(1) of Pub. L. 85–866, set out as a note under section 165 of this title. Pub. L. 85–866, title I, § 52(c), Sept. 2, 1958, 72 Stat. 1644, provided that: “The amendment made by subsection (a) [amending this section] shall apply with respect to short sales made after December 31, 1957.”

Effective Date

of 1955 AmendmentAct Aug. 12, 1955, ch. 871, § 2, 69 Stat. 718, provided that: “The amendment made by the first section of this Act [amending this section] shall apply only with respect to taxable years ending after the date of the enactment of this Act [Aug. 12, 1955] and only in the case of a short sale of property made by the taxpayer after such date.”

Reference

Citations & Metadata

Citation

26 U.S.C. § 1233

Title 26Internal Revenue Code

Last Updated

Apr 6, 2026

Release point: 119-73