Quick Tip: Send Your Tax Return via Certified Mail

Mailing in your tax return? Use Certified Mail with Return Receipt to obtain proof that your tax return was accepted by the USPS®, delivered, and signed for. When you use this service, the USPS offers a mailing receipt, provides delivery information, and maintains a copy of the recipient’s signature for two years. Additionally, you can request a Return Receipt (electronic or postcard) for a copy of the signature. In the event of any dispute regarding mailing dates, Certified Mail has you covered… and so does Stamps.com!

Automate the Certified Mail process
With Stamps.com, all our customers can print postage for Certified Mail and fill out the standard USPS Certified Mail and Return Receipt forms, or make Certified Mail even easier with our wide selection of automated forms.
With Stamps.com’s automated forms, only available to our Premier members, you’ll never have to handwrite another Certified Mail form or go to the Post Office again! When you use Stamps.com’s automated Certified Mail forms, you can print postage, address and all Certified Mail requirements (including a mailing receipt or Return Receipt) in one simple step. You can print on our easy-to-use #11 Certified Mail envelopes or our highly-flexible label forms, which can be used on regular envelopes, flats or packages.
Learn more about sending Certified Mail with Stamps.com
Frequently Asked Questions
What USPS service should I use if I want to send large envelopes under 15.994 oz, letters up to 3.5 oz, and postcards?
First-Class Mail International®
How can I print Certified Mail® on Stamps.com?
With just a few clicks, you can prepare Certified Mail® online—no green cards or manual forms required. Labels include tracking and electronic return receipt options, giving you peace of mind for critical business documents.