26 U.S.C. § 195
Start-up expenditures
Except as otherwise provided in this section, no deduction shall be allowed for start-up expenditures.
In any case in which a trade or business is completely disposed of by the taxpayer before the end of the period to which paragraph (1) applies, any deferred expenses attributable to such trade or business which were not allowed as a deduction by reason of this section may be deducted to the extent allowable under section 165.
Except as provided in subparagraph (B), the determination of when an active trade or business begins shall be made in accordance with such regulations as the Secretary may prescribe.
An acquired active trade or business shall be treated as beginning when the taxpayer acquires it.
An election under subsection (b) shall be made not later than the time prescribed by law for filing the return for the taxable year in which the trade or business begins (including extensions thereof).
The period selected under subsection (b) shall be adhered to in computing taxable income for the taxable year for which the election is made and all subsequent taxable years.
2025—Subsec. (c)(1). Pub. L. 119–21 substituted “174, or 174A” for “or 174” in concluding provisions.
2010—Subsec. (b)(3). Pub. L. 111–240 added par. (3).
2004—Subsec. (b). Pub. L. 108–357, § 902(a)(2), substituted “deduct” for “amortize” in heading.
Subsec. (b)(1). Pub. L. 108–357, § 902(a)(1), amended heading and text of par. (1) generally. Prior to amendment, text read as follows: “Start-up expenditures may, at the election of the taxpayer, be treated as deferred expenses. Such deferred expenses shall be allowed as a deduction prorated equally over such period of not less than 60 months as may be selected by the taxpayer (beginning with the month in which the active trade or business begins).”
1984—Subsec. (a). Pub. L. 98–369 amended subsec. (a) generally, substituting provisions dealing with capitalization of expenditures for provisions dealing with election to amortize.
Subsec. (b). Pub. L. 98–369 amended subsec. (b) generally, substituting provisions dealing with election to amortize for provisions dealing with start-up expenditures.
Subsec. (c). Pub. L. 98–369 amended subsec. (c) generally, substituting provisions setting forth definitions for provisions dealing with election.
Subsec. (d). Pub. L. 98–369 amended subsec. (d) generally, substituting provisions dealing with election for provisions dealing with business beginning.
Amendment by Pub. L. 119–21 applicable to amounts paid or incurred in taxable years beginning after
Pub. L. 111–240, title II, § 2031(b),
Pub. L. 108–357, title VIII, § 902(d),
Pub. L. 98–369, div. A, title I, § 94(c),
Pub. L. 96–605, title I, § 102(c),