Sorry, your operating system is currently not supported by the Stamps.com software. Please try again with either Microsoft Windows XP or newer, or Mac OS 10.9 or newer on a Macintosh with an Intel processor.
Already downloaded the software? Please look for the Stamps.com icon on your desktop and click it to launch Stamps.com.
Note to Mac Users: Since the Stamps.com software is only compatible with Windows computers, Mac users should use Stamps.com Online to print postage. It works from any web browser. Log in here.
Stamps.com version 17.3 includes updated USPS postage rates which took effect on Wednesday, June 17, 2020.
For more details on the new 2020 USPS rate changes, visit our Learning Center.
Stamps.com easily calculates and prints official, USPS postage for anything from postcards to packages—domestic or international. You can even print postage right on envelopes—including the address—all in one step.
If you can do it at the Post Office you can do it with Stamps.com… 24/7. You can even access special services including Certified Mail, USPS Tracking, insurance and more. Just give your letters and packages to your mail carrier, drop them in a mail box or schedule a pick-up.
Stamps.com customers save up to 16% on all Priority Mail Express® shipments, up to 40% on Priority Mail® shipments and up to 30% on First Class Package Service. Shipping internationally? Stamps.com saves you up to 7% on Priority Mail International shipments, up to 5% for Priority Mail Express International and up to 5% on First Class Package International Service. Package insurance is cheaper, too! Save up to 40% over USPS rates when you insure your shipments with Stamps.com.
With Stamps.com’s automated forms, you or your staff will never have to handwrite another Certified Mail™, Return Receipt or International Customs form again. Save time and effort by printing postage, addresses and forms in one step.
Whether you print one shipping label at a time or print them all in one batch, fulfilling your e-commerce orders is a snap with Stamps.com. Our software eliminates the need for manual data entry by automatically retrieving your order data from eBay®, Amazon.com®, Paypal®, Yahoo!®, and even your own shopping cart! Stamps.com will also post-back shipping details and order data to your eBay or Amazon store. Stamps.com also lets you hide the postage value on your labels (to avoid customer questions) and even generates return shipping labels at your customer’s request. Learn more
With Stamps.com, you’ll never have to handwrite another shipping label or envelope. You can even add your logo or marketing message to your stamps, envelopes or shipping labels for an even more impressive, polished look.