Skip to content
LexBuild

26 CFR § 1.965-9 - Applicability dates.

---
identifier: "/us/cfr/t26/s1.965-9"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "26 CFR § 1.965-9 - Applicability dates."
title_number: 26
title_name: "Internal Revenue"
section_number: "1.965-9"
section_name: "Applicability dates."
chapter_name: "INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY"
subchapter_number: "A"
subchapter_name: "INCOME TAX"
part_number: "1"
part_name: "INCOME TAXES"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "26 U.S.C. 7805, unless otherwise noted."
regulatory_source: "T.D. 6500, 25 FR 11402, Nov. 26, 1960; 25 FR 14021, Dec. 21, 1960; T.D. 9989, 89 FR 17606, Mar. 11, 2024, unless otherwise noted."
cfr_part: "1"
---

# 1.965-9 Applicability dates.

(a) *In general.* Except as otherwise provided in this section, §§ 1.965-1 through 1.965-8 apply beginning the last taxable year of a foreign corporation that begins before January 1, 2018, and with respect to a United States person, beginning the taxable year in which or with which such taxable year of the foreign corporation ends.

(b) *Applicability dates for rules disregarding certain transactions.* Section 1.965-4 applies regardless of whether, with respect to a foreign corporation, the transaction, effective date of a change in method of accounting, effective date of an entity classification election, or specified payment described in § 1.965-4 occurred before the first day of the foreign corporation's last taxable year that begins before January 1, 2018, or, with respect to a United States person, the transaction, effective date of a change in method of accounting, effective date of an entity classification election, or specified payment described in § 1.965-4 occurred before the first day of the taxable year of the United States person in which or with which the taxable year of the foreign corporation ends.

(c) *Applicability date for certain portions of § 1.965-5.* Paragraph (c)(1)(iii) of § 1.965-5 applies to taxable years of foreign corporations that both begin after December 31, 2017, and end on or after December 4, 2018, and with respect to a United States person, to the taxable years in which or with which such taxable years of the foreign corporations end. Section 1.965-5(b)(2) applies to taxable years of foreign corporations that end on or after December 16, 2019, and with respect to a United States person, to the taxable years in which or with which such taxable years of the foreign corporations end.

[T.D. 9846, 84 FR 1875, Feb. 5, 2019, as amended by T.D. 9882, 84 FR 69120, Dec. 17, 2019; T.D. 9922, 85 FR 72072, Nov. 12, 2020]