Usps Form 3817 – Fill Out and Use This PDF

Updated: Oct 29, 2026

The USPS 3817 form, known as the Certificate of Mailing, serves as official proof that mail has been presented to the United States Postal Service (USPS) for delivery. This form can be utilized for both domestic and international correspondence, ensuring that senders have evidence of postage. The form requires the payment of a fee, which can be settled through stamps or metered postage, marked in the designated area on the form itself.

For individuals or businesses looking to secure documentation of their mailed items, completing the USPS 3817 form is a straightforward process. Click the button below to start filling out your form and ensure your mailings are accounted for.

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Usps Form 3817 PDF Details

In today's fast-paced world, staying on top of your mail, especially important documents, can be a real challenge. One of the ways to ensure your mail has been officially sent and acknowledged by the United States Postal Service (USPS) is through the use of the USPS 3817 form, known as the Certificate of Mailing. This form serves as proof that your mail has been presented to and accepted by the USPS for delivery, giving senders peace of mind. It's applicable for both domestic and international correspondence, making it a versatile tool for individuals and businesses alike. The form requires the sender to affix the appropriate postage or stamps before mailing, and once processed, it provides an official postmark as evidence of mailing. Since its introduction in April 2007, the PS Form 3817 has become an essential document for anyone looking for a verifiable way to establish the date their mail was handed over to the postal service, adding an extra layer of security and accountability to the mailing process.

Question	Answer
Form Name	Usps Form 3817
Form Length	1 pages
Fillable?	No
Fillable fields	0
Avg. time to fill out	15 sec
Other names	ps form 3817 cost, form 3817, ps form 3817, usps form 3817

How to Fill Out PS Form 3817

PS Form 3817 at a glance

What it is: This Certificate of Mailing provides evidence that mail has been presented to USPS® for mailing. This form may be used for domestic and international mail.

A filled-in PS Form 3817 example: a sender fills in the addresses

PS Form 3817 example filled out, example: a sender fills in the addresses — A sender fills out PS Form 3817 for a Certificate of Mailing. The sender enters a return address under From and one recipient address under To. The picture shows the filled form, and every value in it is made up.

How to fill out PS Form 3817, box by box

Postage box and From

To pay fee, affix stamps or meter postage here.

Sources

[1] PS Form 3817 (April 2007), Certificate of Mailing, U.S. Postal Service (the Official source link on this page).