26 U.S.C. § 7502
Timely mailing treated as timely filing and paying
If any return, claim, statement, or other document required to be filed, or any payment required to be made, within a prescribed period or on or before a prescribed date under authority of any provision of the internal revenue laws is, after such period or such date, delivered by United States mail to the agency, officer, or office with which such return, claim, statement, or other document is required to be filed, or to which such payment is required to be made, the date of the United States postmark stamped on the cover in which such return, claim, statement, or other document, or payment, is mailed shall be deemed to be the date of delivery or the date of payment, as the case may be.
This section shall apply in the case of postmarks not made by the United States Postal Service only if and to the extent provided by regulations prescribed by the Secretary.
The Secretary is authorized to provide by regulations the extent to which the provisions of paragraph (1) with respect to prima facie evidence of delivery and the postmark date shall apply to certified mail and electronic filing.
If any deposit required to be made (pursuant to regulations prescribed by the Secretary under section 6302(c)) on or before a prescribed date is, after such date, delivered by the United States mail to the bank, trust company, domestic building and loan association, or credit union authorized to receive such deposit, such deposit shall be deemed received by such bank, trust company, domestic building and loan association, or credit union on the date the deposit was mailed.
Paragraph (1) shall not apply with respect to any deposit of $20,000 or more by any person who is required to deposit any tax more than once a month.
Any reference in this section to the United States mail shall be treated as including a reference to any designated delivery service, and any reference in this section to a postmark by the United States Postal Service shall be treated as including a reference to any date recorded or marked as described in paragraph (2)(C) by any designated delivery service.
The Secretary may provide a rule similar to the rule of paragraph (1) with respect to any service provided by a designated delivery service which is substantially equivalent to United States registered or certified mail.
1998—Subsec. (c). Pub. L. 105–206 inserted “; electronic filing” after “mailing” in heading and amended text of subsec. (c) generally. Prior to amendment, text read as follows:
“(1)
“(A) such registration shall be prima facie evidence that the return, claim, statement, or other document was delivered to the agency, officer, or office to which addressed, and
“(B) the date of registration shall be deemed the postmark date.
“(2)
1996—Subsec. (f). Pub. L. 104–168 added subsec. (f).
1986—Subsec. (e)(3). Pub. L. 99–514 substituted “any tax” for “the tax”.
1984—Subsec. (e)(3). Pub. L. 98–369 added par. (3).
1977—Subsec. (e). Pub. L. 95–147 substituted “, trust company, domestic building and loan association, or credit union” for “or trust company” in three places.
1976—Subsec. (b). Pub. L. 94–455, § 1906(a)(49), (b)(13)(A), substituted “United States Postal Service” for “United States Post Office” after “made by the”, and struck out “or his delegate” after “Secretary”.
Subsecs. (c)(2), (e)(1). Pub. L. 94–455, § 1906(b)(13)(A), struck out “or his delegate” after “Secretary”.
1968—Subsec. (e). Pub. L. 90–364 added subsec. (e).
1966—Subsec. (a). Pub. L. 89–713 inserted filing of tax returns and the payments of tax to the list of operations to which the timely-mailing-timely-filing provisions of the subsec. apply and altered the subsec. structurally by dividing its provisions into pars. (1) and (2).
Subsec. (b). Pub. L. 89–713 substituted “Postmarks” for “Stamp machine” in heading.
Subsec. (c). Pub. L. 89–713 inserted returns and payments to the list of operations to which the timely-mailing-timely-filing provisions apply and altered par. (1) structurally by dividing its provisions into subpars. (A) and (B).
Subsec. (d). Pub. L. 89–713 designated existing provisions as par. (1) and added pars. (2) and (3).
1958—Subsec. (c). Pub. L. 85–866 designated existing provisions as par. (1) and added par. (2).
Amendment by Pub. L. 99–514 effective, except as otherwise provided, as if included in the provisions of the Tax Reform Act of 1984, Pub. L. 98–369, div. A, to which such amendment relates, see section 1881 of Pub. L. 99–514, set out as a note under section 48 of this title.
Pub. L. 98–369, div. A, title I, § 157(b),
Amendment by Pub. L. 95–147 applicable to amounts deposited after
Amendment by Pub. L. 94–455 effective on first day of first month which begins more than 90 days after
Pub. L. 90–364, title I, § 106(b),
Pub. L. 89–713, § 5(c),
Pub. L. 85–866, title I, § 89(d),
For provisions directing that if any amendments made by subtitle A or subtitle C of title XI [§§ 1101–1147 and 1171–1177] or title XVIII [§§ 1800–1899A] of Pub. L. 99–514 require an amendment to any plan, such plan amendment shall not be required to be made before the first plan year beginning on or after
Pub. L. 85–866, title I, § 89(c),