(a) General rule. Section 7502 provides that, if the requirements of that section are met, a document or payment is deemed to be filed or paid on the date of the postmark stamped on the envelope or other appropriate wrapper (envelope) in which the document or payment was mailed. Thus, if the envelope that contains the document or payment has a timely postmark, the document or payment is considered timely filed or paid even if it is received after the last date, or the last day of the period, prescribed for filing the document or making the payment. Section 7502 does not apply in determining whether a failure to file a return or pay a tax has continued for an additional month or fraction thereof for purposes of computing the penalties and additions to tax imposed by section 6651. Except as provided in section 7502(e) and §301.7502-2, relating to the timely mailing of deposits, and paragraph (d) of this section, relating to electronically filed documents, section 7502 is applicable only to those documents or payments as defined in paragraph (b) of this section and only if the document or payment is mailed in accordance with paragraph (c) of this section and is delivered in accordance with paragraph (e) of this section.

(b) Definitions—(1) Document defined.

(i) The term document, as used in this section, means any return, claim, statement, or other document required to be filed within a prescribed period or on or before a prescribed date under authority of any provision of the internal revenue laws, except as provided in paragraph (b)(1)(ii), (iii), or (iv) of this section.

(ii) The term does not include returns, claims, statements, or other documents that are required under any provision of the internal revenue laws or the regulations thereunder to be delivered by any method other than mailing.

(iii) The term does not include any document filed in any court other than the Tax Court, but the term does include any document filed with the Tax Court, including a petition and a notice of appeal of a decision of the Tax Court.

(iv) The term does not include any document that is mailed to an authorized financial institution under section 6302. However, see §301.7502-2 for special rules relating to the timeliness of deposits and documents required to be filed with deposits.

(2) Claims for refund—(i) In general. In the case of certain taxes, a return may constitute a claim for credit or refund. Section 7502 is applicable to the determination of whether a claim for credit or refund is timely filed for purposes of section 6511(a) if the conditions of section 7502 are met, irrespective of whether the claim is also a return. For rules regarding claims for refund on late filed tax returns, see paragraph (f) of this section. Section 7502 is also applicable when a claim for credit or refund is delivered after the last day of the period specified in section 6511(b)(2)(A) or in any other corresponding provision of law relating to the limit on the amount of credit or refund that is allowable.

(ii) Example. The rules of paragraph (b)(2)(i) of this section are illustrated by the following example:

(3) Payment defined.

(i) The term payment, as used in this section, means any payment required to be made within a prescribed period or on or before a prescribed date under the authority of any provision of the internal revenue laws, except as provided in paragraph (b)(3)(ii), (iii), (iv), or (v) of this section.

(ii) The term does not include any payment that is required under any provision of the internal revenue laws or the regulations thereunder to be delivered by any method other than mailing. See, for example, section 6302(h) and the regulations thereunder regarding electronic funds transfer.

(iii) The term does not include any payment, whether it is made in the form of currency or other medium of payment, unless it is actually received and accounted for. For example, if a check is used as the form of payment, this section does not apply unless the check is honored upon presentation.

(iv) The term does not include any payment to any court other than the Tax Court.

(v) The term does not include any deposit that is required to be made with an authorized financial institution under section 6302. However, see §301.7502-2 for rules relating to the timeliness of deposits.

(4) Last date or last day prescribed. As used in this section, the term the last date, or the last day of the period, prescribed for filing the document or making the payment includes any extension of time granted for that action. When the last date, or the last day of the period, prescribed for filing the document or making the payment falls on a Saturday, Sunday or legal holiday, section 7503 applies. Therefore, in applying the rules of this paragraph (b)(4), the next succeeding day that is not a Saturday, Sunday, or legal holiday is treated as the last date, or the last day of the period, prescribed for filing the document or making the payment. Also, when the last date, or the last day of the period, prescribed for filing the document or making the payment falls within a period disregarded under section 7508 or section 7508A, the next succeeding day after the expiration of the section 7508 period or section 7508A period that is not a Saturday, Sunday, or legal holiday is treated as the last date, or the last day of the period, prescribed for filing the document or making the payment.

(c) Mailing requirements—(1) In general. Section 7502 does not apply unless the document or payment is mailed in accordance with the following requirements:

(i) Envelope and address. The document or payment must be contained in an envelope, properly addressed to the agency, officer, or office with which the document is required to be filed or to which the payment is required to be made.

(ii) Timely deposited in U.S. mail. The document or payment must be deposited within the prescribed time in the mail in the United States with sufficient postage prepaid. For this purpose, a document or payment is deposited in the mail in the United States when it is deposited with the domestic mail service of the U.S. Postal Service. The domestic mail service of the U.S. Postal Service, as defined by the Domestic Mail Manual as incorporated by reference in the postal regulations, includes mail transmitted within, among, and between the United States of America, its territories and possessions, and Army post offices (APO), fleet post offices (FPO), and the United Nations, NY. (See Domestic Mail Manual, section G011.2.1, as incorporated by reference in 39 CFR 111.1.) Section 7502 does not apply to any document or payment that is deposited with the mail service of any other country.

(iii) Postmark—(A) U.S. Postal Service postmark. If the postmark on the envelope is made by the U.S. Postal Service, the postmark must bear a date on or before the last date, or the last day of the period, prescribed for filing the document or making the payment. If the postmark does not bear a date on or before the last date, or the last day of the period, prescribed for filing the document or making the payment, the document or payment is considered not to be timely filed or paid, regardless of when the document or payment is deposited in the mail. Accordingly, the sender who relies upon the applicability of section 7502 assumes the risk that the postmark will bear a date on or before the last date, or the last day of the period, prescribed for filing the document or making the payment. See, however, paragraph (c)(2) of this section with respect to the use of registered mail or certified mail to avoid this risk. If the postmark on the envelope is made by the U.S. Postal Service but is not legible, the person who is required to file the document or make the payment has the burden of proving the date that the postmark was made. Furthermore, if the envelope that contains a document or payment has a timely postmark made by the U.S. Postal Service, but it is received after the time when a document or payment postmarked and mailed at that time would ordinarily be received, the sender may be required to prove that it was timely mailed.

(B) Postmark made by other than U.S. Postal Service—(1) In general. If the postmark on the envelope is made other than by the U.S. Postal Service—

(i) The postmark so made must bear a legible date on or before the last date, or the last day of the period, prescribed for filing the document or making the payment; and

(ii) The document or payment must be received by the agency, officer, or office with which it is required to be filed not later than the time when a document or payment contained in an envelope that is properly addressed, mailed, and sent by the same class of mail would ordinarily be received if it were postmarked at the same point of origin by the U.S. Postal Service on the last date, or the last day of the period, prescribed for filing the document or making the payment.

(2) Document or payment received late. If a document or payment described in paragraph (c)(1)(iii)(B)(1) is received after the time when a document or payment so mailed and so postmarked by the U.S. Postal Service would ordinarily be received, the document or payment is treated as having been received at the time when a document or payment so mailed and so postmarked would ordinarily be received if the person who is required to file the document or make the payment establishes—

(i) That it was actually deposited in the U.S. mail before the last collection of mail from the place of deposit that was postmarked (except for the metered mail) by the U.S. Postal Service on or before the last date, or the last day of the period, prescribed for filing the document or making the payment;

(ii) That the delay in receiving the document or payment was due to a delay in the transmission of the U.S. mail; and

(iii) The cause of the delay.

(3) U.S. and non-U.S. postmarks. If the envelope has a postmark made by the U.S. Postal Service in addition to a postmark not so made, the postmark that was not made by the U.S. Postal Service is disregarded, and whether the envelope was mailed in accordance with this paragraph (c)(1)(iii)(B) will be determined solely by applying the rule of paragraph (c)(1)(iii)(A) of this section.

(2) Registered or certified mail. If the document or payment is sent by U.S. registered mail, the date of registration of the document or payment is treated as the postmark date. If the document or payment is sent by U.S. certified mail and the sender's receipt is postmarked by the postal employee to whom the document or payment is presented, the date of the U.S. postmark on the receipt is treated as the postmark date of the document or payment. Accordingly, the risk that the document or payment will not be postmarked on the day that it is deposited in the mail may be eliminated by the use of registered or certified mail.

(3) Private delivery services. Under section 7502(f)(1), a service of a private delivery service (PDS) may be treated as an equivalent to United States mail for purposes of the postmark rule if the Commissioner determines that the service satisfies the conditions of section 7502(f)(2). Thus, the Commissioner may, in guidance published in the Internal Revenue Bulletin (see §601.601(d)(2)(ii)(b) of this chapter), prescribe procedures and additional rules to designate a service of a PDS for purposes of the postmark rule of section 7502(a).

(d) Electronically filed documents—(1) In general. A document filed electronically with an electronic return transmitter (as defined in paragraph (d)(3)(i) of this section and authorized pursuant to paragraph (d)(2) of this section) in the manner and time prescribed by the Commissioner is deemed to be filed on the date of the electronic postmark (as defined in paragraph (d)(3)(ii) of this section) given by the authorized electronic return transmitter. Thus, if the electronic postmark is timely, the document is considered filed timely although it is received by the agency, officer, or office after the last date, or the last day of the period, prescribed for filing such document.

(2) Authorized electronic return transmitters. The Commissioner may enter into an agreement with an electronic return transmitter or prescribe in forms, instructions, or other appropriate guidance the procedures under which the electronic return transmitter is authorized to provide taxpayers with an electronic postmark to acknowledge the date and time that the electronic return transmitter received the electronically filed document.

(3) Definitions—(i) Electronic return transmitter. For purposes of this paragraph (d), the term electronic return transmitter has the same meaning as contained in section 3.01(4) of Rev. Proc. 2000-31 (2000-31 I.R.B. 146 (July 31, 2000))(see §601.601(d)(2) of this chapter) or in procedures prescribed by the Commissioner.

(ii) Electronic postmark. For purposes of this paragraph (d), the term electronic postmark means a record of the date and time (in a particular time zone) that an authorized electronic return transmitter receives the transmission of a taxpayer's electronically filed document on its host system. However, if the taxpayer and the electronic return transmitter are located in different time zones, it is the taxpayer's time zone that controls the timeliness of the electronically filed document.

(e) Delivery—(1) General rule. Except as provided in section 7502(f) and paragraphs (c)(3) and (d) of this section, section 7502 is not applicable unless the document or payment is delivered by U.S. mail to the agency, officer, or office with which the document is required to be filed or to which payment is required to be made.

(2) Exceptions to actual delivery—(i) Registered and certified mail. In the case of a document (but not a payment) sent by registered or certified mail, proof that the document was properly registered or that a postmarked certified mail sender's receipt was properly issued and that the envelope was properly addressed to the agency, officer, or office constitutes prima facie evidence that the document was delivered to the agency, officer, or office. Other than direct proof of actual delivery, proof of proper use of registered or certified mail, and proof of proper use of a duly designated PDS as provided for by paragraph (e)(2)(ii) of this section, are the exclusive means to establish prima facie evidence of delivery of a document to the agency, officer, or office with which the document is required to be filed. No other evidence of a postmark or of mailing will be prima facie evidence of delivery or raise a presumption that the document was delivered.

(ii) Equivalents of registered and certified mail. Under section 7502(f)(3), the Secretary may extend the prima facie evidence of delivery rule of section 7502(c)(1)(A) to a service of a designated PDS, which is substantially equivalent to United States registered or certified mail. Thus, the Commissioner may, in guidance published in the Internal Revenue Bulletin (see §601.601(d)(2)(ii)(b) of this chapter), prescribe procedures and additional rules to designate a service of a PDS for purposes of demonstrating prima facie evidence of delivery of a document pursuant to section 7502(c).

(f) Claim for credit or refund on late filed tax return—(1) In general. Generally, an original income tax return may constitute a claim for credit or refund of income tax. See §301.6402-3(a)(5). Other original tax returns can also be considered claims for credit or refund if the liability disclosed on the return is less than the amount of tax that has been paid. If section 7502 would not apply to a return (but for the operation of paragraph (f)(2) of this section) that is also considered a claim for credit or refund because the envelope that contains the return does not have a postmark dated on or before the due date of the return, section 7502 will apply separately to the claim for credit or refund if—

(i) The date of the postmark on the envelope is within the period that is three years (plus the period of any extension of time to file) from the day the tax is paid or considered paid (see section 6513), and the claim for credit or refund is delivered after this three-year period; and

(ii) The conditions of section 7502 are otherwise met.

(2) Filing date of late filed return. If the conditions of paragraph (f)(1) of this section are met, the late filed return will be deemed filed on the postmark date.

(3) Example. The rules of this paragraph (f) are illustrated by the following example:

(g) Effective date—(1) In general. Except as provided in paragraphs (g)(2) and (3) of this section, the rules of this section apply to any payment or document mailed and delivered in accordance with the requirements of this section in an envelope bearing a postmark dated after January 11, 2001.

(2) Claim for credit or refund on late filed tax return. Paragraph (f) of this section applies to any claim for credit or refund on a late filed tax return described in paragraph (f)(1) of this section except for those claims for credit or refund which (without regard to paragraph (f) of this section) were barred by the operation of section 6532(a) or any other law or rule of law (including res judicata) as of January 11, 2001.

(3) Electronically filed documents. This section applies to any electronically filed return, claim, statement, or other document transmitted to an electronic return transmitter that is authorized to provide an electronic postmark pursuant to paragraph (d)(2) of this section after January 11, 2001.

(4) Registered or certified mail as the means to prove delivery of a document. Section 301.7502-1(e)(2) will apply to all documents mailed after September 21, 2004.

[T.D. 8932, 66 FR 2258, Jan. 11, 2001, as amended by T.D. 9543, 76 FR 52563, Aug. 23, 2011]