Code of Federal Regulations Title 26. Internal Revenue § 26.1.181–6 Effective/applicability date

(a) In general. Except as otherwise provided in this section, §§ 1.181–1 through 1.181–5 apply to productions the first day of principal photography for which occurs on or after September 29, 2011.Paragraphs 1.181–1(a)(1)(ii), (a)(6), (b)(1)(ii), (b)(2)(vi), and (c)(2) of § 1.181–1 apply to productions to which section 181 is applicable and for which the first day of principal photography or in-between animation occurs on or after December 7, 2012.

(b) Pre-effective date productions. For any taxable year for which the period of limitation on refund or credit under section 6511 has not expired, the owner may apply §§ 1.181–1 through 1.181–5 to any production to which section 181 applies and for which the first day of principal photography (or in-between animation) occurred before December 7, 2012, provided the owner applies all relevant provisions of §§ 1.181–1 through 1.181–5 to the production.