For purposes of section 21 (relating to change in rates during a taxable year), section 443 (relating to returns for a period of less than 12 months), and section 7851(a)(1)(A) (relating to the applicability of certain provisions of the Internal Revenue Code of 1954 and the Internal Revenue Code of 1939), where the husband and wife have different taxable years because of death of either spouse, the joint return shall be treated as if the taxable years of both ended on the date of the closing of the surviving spouse's taxable year. Thus, in cases where the Internal Revenue Code of 1939 otherwise would apply to the taxable year of the decedent spouse and the Internal Revenue Code of 1954 would apply to the taxable year of the surviving spouse, this provision makes the Internal Revenue Code of 1954 applicable to the taxable years of both spouses if a joint return is filed.
The preliminary Code is a preliminary release of the Internal Revenue Code of 1986 (the "Code") by the Office of the Law Revision Counsel and is subject to further revision before it is released again as a final version. The source of the preliminary Code used in TouchTax is available here: https://uscode.house.gov/download/download.shtml. The Code is a consolidation and codification by subject matter of the general and permanent laws of the U.S. prepared by the Office of the Law Revision Counsel of the U.S. House of Representatives. The Treasury Regulations are a codification of the general and permanent rules published in the Federal Register by the departments and agencies of the federal government. The version of the Treasury Regulations available within TouchTax is part of the Electronic Code of Federal Regulations which is not an official legal edition of the Code of Federal Regulations but is an editorial compilation of CFR material and Federal Register amendments produced by the National Archives and Records Administration's Office of the Federal Register (OFR) and the Government Publishing Office. The source of the CFR used in TouchTax is available here: https://www.govinfo.gov/bulkdata/ECFR/title-26. Those using TouchTax for legal research should verify their results against the printed versions of the Code and Treasury Regulations. TouchTax is copyright 2024 by Com-Lab (Mobile). Learn more at http://touchtax.edrich.de.