The United States Postal Service implemented new postage and shipping rates, with Priority Mail increasing by an average of 6.3%, and certain Zone 4-6 increases rising as high as 51%. USPS Flat Rate box prices rose between 3% and 11%. Ground Advantage rates climbed 7.1%, while a new $4 fee on non-standard packages may affect businesses. Some rates decreased, such as a 6.5% drop for small Priority Mail shipments. The changes result in varied impacts on shipping costs for ecommerce businesses, prompting reevaluation of shipping practices.
The USPS announced the increases in April 2025 to help achieve financial stability, meet regulatory requirements, and cover the transportation cost of packages.
The average increase for Priority Mail is 6.3%, but shipping software maker Pirate Ship noted that for some Zone 4-6 shipments, the increase was much higher, i.e., 51%.
The cost of USPS Flat Rate boxes rose by 3%, 11%, and 7% for the small, medium, and large options, respectively.
Some shipments increased just a few cents while others, depending on weight and zone, jumped by 30% or more, leading to potential reshuffling of fulfillment costs.
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