TY - BOOK ED - West Publishing Company ED - United States TI - Federal tax regulations: 2026 SN - 0499-6518 AV - KF 6276 .5 2026 PY - 2026/// CY - [Place of publication not identified] PB - Thomson Reuters KW - Taxation KW - Law and legislation KW - United States KW - Periodicals KW - Local N1 - "In force December 31, 2025"; Includes indexes; Issued in parts N2 - The 2026 Federal Tax Regulations comprise the seventy-third in the annual series. The series preserves in permanent form, the regulations promulgated by the Treasury Department that interpret statutory provisions relating to income, estate, gift, and employment taxes, that illustrate methods of compliance, and that govern practice before the Internal Revenue Service. The regulations are codified in Code of Federal Regulations, Title 26—Internal Revenue, or Title 31—Money and Finance, and the Internal Revenue Code references are identical to 26 U.S.C.A. sections. These volumes contain regulations adopted through December 31, 2025 ER -