Access USPS Commercial Plus Pricing on every shipment. Priority Mail, Ground Advantage, First-Class — all at the deepest discounts available. No monthly fees, no minimums.
Print labels for any USPS service at commercial rates. Pick the right speed and price for each shipment.
The workhorse of eCommerce shipping. Includes $100 free insurance, tracking, and free USPS boxes. Best for packages over 1 lb that need to arrive quickly.
Guaranteed overnight or 2-day delivery with a money-back guarantee. Includes $100 insurance and free tracking. Available 365 days a year including holidays.
Replaced First-Class Package and Parcel Select Ground in 2023. Affordable option for packages up to 70 lbs with full tracking. The budget pick for non-urgent orders.
Best for lightweight items under 13 oz. Stickers, jewelry, phone cases, small accessories — anything light and flat ships cheaply with First-Class.
Deeply discounted rates exclusively for books, CDs, DVDs, and educational materials. Not eligible for general merchandise — USPS can inspect packages.
A hidden gem for small, heavy items. Pricing is based on package dimensions instead of weight — so a 15 lb item in a small box costs the same as a 1 lb item.
Real rate comparisons between USPS retail pricing and atoship commercial rates. These are actual savings on common package sizes.
Rates shown are estimates and vary by origin, destination, and current USPS pricing. Actual savings may be higher or lower.
USPS is already the most affordable carrier for most eCommerce sellers. With atoship, it gets even cheaper.
You get the same deeply discounted rates that high-volume shippers negotiate — without shipping thousands of packages a month. These are the lowest USPS rates legally available.
Unlike FedEx and UPS, USPS never charges extra for residential deliveries. The rate you see is the rate you pay, whether you're shipping to an apartment or a warehouse.
USPS delivers on Saturdays at no extra charge. Priority Mail Express even delivers on Sundays and holidays in many areas. Your customers get packages faster without you paying more.
Schedule free daily pickup from your home or business through your atoship dashboard. No minimum package count. The mail carrier picks up your packages during regular delivery rounds.
Ship anything that fits in a USPS Flat Rate box for one price, regardless of weight or destination. A 30 lb box going across the country costs the same as a 2 lb box going to the next state.
Flat Rate boxes ship for one price regardless of weight or destination. Here is when to use them — and when to skip them.
Pro tip: atoship automatically compares Flat Rate pricing against weight-based rates when you create a label. If Flat Rate is cheaper, we show it. You never have to guess.
Common questions about shipping with USPS through atoship.
Commercial Plus is USPS's deepest discount tier, typically reserved for shippers sending 50,000+ packages per year. Through atoship, every user gets access to these rates from day one — no volume requirements, no contracts, no negotiations needed.
Savings vary by service, weight, and destination zone. On average, Priority Mail saves 25-45%, Ground Advantage saves 20-40%, and First-Class saves 15-30%. The biggest percentage savings tend to be on heavier packages shipped to farther zones.
Yes. You can schedule free Package Pickup through your atoship dashboard or directly at usps.com. Your regular mail carrier picks up packages during their normal delivery route. There's no minimum number of packages required.
USPS accepts packages up to 70 lbs for most services. Maximum combined length + girth is 130 inches (108 inches for Priority Mail). First-Class Mail is limited to 13 oz. For anything heavier than 70 lbs, you'll need FedEx or UPS.
Ground Advantage delivers in 2-5 business days and is cheaper. Priority Mail delivers in 1-3 days and includes $100 insurance. For non-urgent, lower-value items, Ground Advantage saves money. For faster delivery or valuable items, Priority Mail is worth the extra cost.
USPS delivers packages on Saturdays at no extra charge — this applies to Priority Mail, Ground Advantage, and other services. Priority Mail Express also delivers on Sundays and holidays in most metro areas. No other carrier offers this without surcharges.
Flat Rate boxes make financial sense when your package is heavy relative to its size. A good rule of thumb: if your item weighs more than 5-6 lbs and fits in a Flat Rate box, the flat price will likely beat the weight-based rate. For lighter items, your own packaging with regular rates is almost always cheaper.
No. atoship is free to use — no monthly subscription, no per-label markup, no minimum volume. You pay only the discounted USPS postage for each label you print. What you see at checkout is what you pay.
Yes. You can print discounted labels for USPS Priority Mail International, First-Class Package International, and Priority Mail Express International. International labels include customs forms generated automatically from your order data.
USPS provides free boxes, envelopes, and labels for Priority Mail and Priority Mail Express. Order them at usps.com/freeboxes — they ship free to your door, usually within a week. You can't use these boxes for other services like Ground Advantage.
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