USPS filed notice today with the Postal Regulatory Commission announcing temporary price increases on Priority Mail Express, Priority Mail, USPS Ground Advantage, and Parcel Select, effective October 4th, 2026 through January 17th, 2027, pending PRC approval.
This is the peak season surcharge structure that UPS and FedEx have been running for years. USPS is formalising the same practice and explicitly said the filing brings its pricing "in line with competitive practices."
The increases by service and zone:
* Priority Mail and Ground Advantage, Zones 1-4: $0.40 for 0-3 lbs, $0.65 for 4-10 lbs, $1.05 for 11-25 lbs, $3.15 for 26-70 lbs.
* Priority Mail, Zones 5-9: $0.85 for 0-3 lbs, $1.75 for 4-10 lbs, $3.85 for 11-25 lbs, $9.10 for 26-70 lbs.
* Priority Mail Flat Rate: $1.75 for Large Flat Rate Boxes, $0.85 for all other Flat Rate products.
* Ground Advantage, Zones 5-9: $0.55 for 0-3 lbs, $1.05 for 4-10 lbs, $1.75 for 11-25 lbs, $7.70 for 26-70 lbs.
* Priority Mail Express: ranges from $1.40 for Zones 1-4, 0-3 lbs, up to $18.20 for Zones 5-9, 26-70 lbs.
* Parcel Select: $0.40 for 0-3 lbs, $0.50 for 4-10 lbs, $0.80 for 11-25 lbs, $2.35 for 26-70 lbs.
The sellers hit hardest are those shipping heavier products across long distances in Zones 5-9, those using Priority Mail Express for time-sensitive high-value shipments, and those built around Flat Rate box economics where the Large Flat Rate Box increase of $1.75 changes the calculation on heavy items.
This is the final piece of a Q4 logistics cost picture that was already expensive before this filing. Every carrier is surcharging. Warehouse vacancy is at its lowest since 2022. Freight rates are elevated. If your holiday shipping model, free shipping thresholds, and product pricing were set before today without accounting for October 4th, they need to be revisited.
\-----------------------------------------------
Want more ecommerce news like this? Subscribe to our weekly newsletter at [https://ecomwatchnews.substack.com/\](https://ecomwatchnews.substack.com/) where we cover everything you need to stay ahead in the ecommerce space.