USPS Integration
In partnership with USPS as a CeC Platform Provider
Ship with USPS through Postsale and get access to commercial pricing, automatic cubic rate optimization, SCAN forms, pay-on-use returns, and pickup scheduling. Postsale supports every major USPS domestic and international service.
Getting Started
Get started with USPS
Create a Postsale account
Sign up for a Postsale account and start your 14-day free trial. USPS is available as a carrier on all plans.
Enable USPS in settings
Go to Carriers > USPS in your Postsale dashboard and connect your USPS Business account. Postsale applies discounted commercial rates automatically.
Start printing labels
Select USPS as your carrier when creating shipments. Postsale automatically calculates rates and selects the cheapest option, including cubic pricing when eligible.
Available Services
USPS services in Postsale
Domestic
International
Packaging Options
Features
What you get with USPS
Commercial rates
Postsale gives you access to USPS Commercial rates, the same discounted pricing that large-volume shippers get, available on every plan.
Automatic cubic pricing
When a package qualifies for cubic pricing (under 20 lbs, longest dimension 18" or less), Postsale automatically uses the cubic rate if it's cheaper than weight-based pricing. No manual calculation needed.
SCAN forms
Generate a single barcode that covers all your day's USPS shipments. Hand it to your carrier at pickup for faster acceptance scanning.
Pay-on-use returns
Print return labels that only cost you when the customer actually uses them. Include one in every box without eating into your margins.
Pickup scheduling
Schedule USPS pickups directly from Postsale. No need to visit the post office or call to arrange package collection.
Hazmat support
Ship hazardous materials via USPS with proper classification and labeling, handled directly in Postsale.
Frequently asked questions
Ship with USPS through Postsale
Predictable monthly pricing. No per-label fees.
14-day free trial · Cancel anytime · Human support from day one