Mail Your Tax Return with USPS

Use the Postal Service® to file with confidence on tax day. Find the right products and services to fit your tax day needs.

Federal Tax Deadlines

If your return is postmarked by April 15th, the IRS considers it filed on time.

April 15, 2015 – Federal tax return filing deadline.

October 15, 2015 – Federal tax return extension deadline.


Use PO Locator to find locations that will be open late to postmark your tax return. Partner locations that provide postal services do not offer late postmarking, so verify their last collection hours.

Find Post Offices™ with Extended Hours on April 15th

Mailing Tips

  • Be sure to use sufficient postage. Double-check your envelope. Does it weigh more than 1 oz? Tax returns without enough postage will be returned.
  • Write clearly. Print labels on your computer or neatly write both the destination and return addresses.
  • Avoid the rush at the Post Office. Mail your return in a Collection Box® that has a pick up time before the deadline.

Mailing Options & Services

Choose how you want to mail your federal or state tax return and the extra services you want. We’ll get it where it’s going.

These mailing options apply a postmark to your return. If the postmark is by the deadline date, your return is on time.

Priority Mail Express®

  • 1−2 business day delivery
  • USPS Tracking® included
  • Signature at delivery available
  • Learn More

Priority Mail®

  • 1−3 business day delivery
  • USPS Tracking included
  • Learn More

First−Class Mail®

  • 2−3 business day delivery
  • Extra services can be added
  • Learn More

Proof of Mailing Services

Show that you mailed the tax return, that your return was delivered, or both.

Return Receipt. Get an electronic or physical delivery record showing who signed for your tax return.

Certified Mail® Service. Get a receipt that shows when your tax return was delivered or when delivery was attempted. Combine with Return Receipt to get a record showing who signed for your tax return.

Certificate of Mailing Service. Have evidence that you sent your tax return. Get an official record showing the date your tax return was accepted.

Online Services

Print Priority Mail Express and Priority Mail shipping labels with Click-N-Ship®.

Print a Shipping Label

Get First-Class™ stamps and additional mailing supplies from The Postal Store®

Order Stamps & Supplies

Need Help?

The U.S. Postal Service recommends that tax filers confirm all tax information with a tax professional or the IRS.

Call the IRS: 1-800-TAX-1040 (1-800-829-1040)

Visit the IRS website