Regulations last checked for updates: Jun 17, 2024

Title 26 - Internal Revenue last revised: May 10, 2024
All TitlesTitle 26Chapter IPart 1 - PART 1—INCOME TAXES (CONTINUED)
authority: 26 U.S.C. 7805,unless
source: T.D. 6500, 25 FR 11814, Nov. 26, 1960; 25 FR 14021, Dec. 31, 1960, unless otherwise noted.
cite as: 26 CFR 1.641
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