USPS announced rate changes for domestic services starting on July 13th, 2025. This year's changes are all over the place, with some Priority Mail shipments increasing by up to 51%, some services staying the same, and some decreasing by small amounts.
Starting July 13th, our site will reflect all of the rate changes. Whether you use our Rates Calculator or browse the spreadsheets on our dedicated USPS pages, we’ll have everything you need to help you keep the most treasure in your chest!
Summary of the July 2025 USPS rate changes
Here's how rates for each domestic USPS service will change starting July 13th:
Ground Advantage
Most Ground Advantage shipments won't see a rate increase 🎉 That said, Ground Advantage shipments under 1 pound will increase by an average of 4.5%, and shipments over 20 pounds will increase by a flat 2.8%.
Priority Mail
Priority Mail rates are increasing in most cases, with shipments to Zones 4-6 increasing by up to 51% 😱 Generally speaking, Priority Mail shipments under 1 pound will see the highest rate hikes, and rates will increase by up to 28% for packages over 1 pound.
However, some Priority Mail shipments will decrease: rates for 2-3 pound shipments traveling to Zones 1-4 will decrease by up to 6.5%, and some Priority Mail Cubic shipments going to the same zones will decrease by up to 10%.
Priority Mail Flat Rate
The Flat Rate Envelope is the only Flat Rate product not increasing in price. All other Priority Mail Flat Rate services will increase by the following amounts:
Padded Flat Rate Envelope: +4%
Legal Flat Rate Envelope: +9%
Small Flat Rate Box: +3%
Medium Flat Rate Box: +11%
Large Flat Rate Box: +7%
Media Mail
Media Mail rates are decreasing by an average of 2%.
Priority Mail Express
Priority Mail Express rates are not changing.
Signature Confirmation
Signature Confirmation rates are increasing to $3.95 from $3.70. Adult Signature is not changing.
USPS implemented a new nonstandard characteristics fee
In addition to the above rate changes, USPS implemented a $4 nonstandard characteristics fee that will apply to all tubes and irregular packages regardless of their dimensions.
Read more about USPS nonstandard fees that you might incur on Pirate Ship.
Use our Rates Calculator to find the best rates for your shipments
With these new rate increases, there has never been a better time to shop for the cheapest rates for your shipments! The best way to ensure you're getting the best rates is to plug your package information into our Rates Calculator.
Our Rates Calculator will show you how much rates for your go-to services have changed... and how much you'll save by switching to a different service 🤑
Additional resources