Code of Federal Regulations Title 26. Internal Revenue § 26.301.6511(a)–1 Period of limitation on filing claim

(a) In the case of any tax (other than a tax payable by stamp):

(b) In the case of any tax payable by means of a stamp, a claim for credit or refund of an overpayment of such tax must be filed by the taxpayer within 3 years from the time the tax was paid. For provisions relating to redemption of unused stamps, see section 6805.

(c) For limitations on allowance of credit or refund, special rules, and exceptions, see subsections (b) through (e) of section 6511. For limitations in the case of a petition to the Tax Court, see section 6512. For rules as to time return is deemed filed and tax considered paid, see section 6513.