26 CFR 1.164-1 – Deduction for taxes
(a) In general. Only the following taxes shall be allowed as a deduction under this section for the taxable year within which paid or accrued, according to the method of accounting used in computing taxable income:
(1) State and local, and foreign, real property taxes.
(2) State and local personal property taxes.
(3) State and local, and foreign, income, war profits, and excess profits taxes.
(4) State and local general sales taxes.
(5) State and local taxes on the sale of gasoline, diesel fuel, and other motor fuels.
(b) Taxable years beginning before January 1, 1964. For taxable years beginning before January 1, 1964, except as otherwise provided in §§ 1.164-2 through 1.164-8, inclusive, taxes imposed by the United States, any State, territory, possession of the United States, or a political subdivision of any of the foregoing, or by any foreign country, are deductible from gross income for the taxable year in which paid or accrued, according to the method of accounting used in computing taxable income. For this purpose, postage is not a tax and automobile license or registration fees are ordinarily taxes.
(c) Cross references. For the definition of the term “real property taxes”, see paragraph (d) of § 1.164-3. For the definition of the term “foreign taxes”, see paragraph (d) of § 1.164-3. For the definition of the term “general sales taxes”, see paragraph (f) of § 1.164-3. For the treatment of gasoline, diesel fuel, and other motor fuel taxes, see § 1.164-5. For apportionment of taxes on real property between seller and purchaser, see section 164(d) and § 1.164-6. For the general rule for taxable year of deduction, see section 461. For provisions disallowing any deduction for the tax paid at the source on interest from tax-free covenant bonds, see section 1451(f).