June Amazon FBA Inbound Shipping Fee Adjustments: What Sellers Must Know

According to recent reports, effective June 12, 2025, Amazon will enforce an updated policy regarding FBA inbound shipping fees, aimed at resolving discrepancies between seller-declared package dimensions and actual measurements.

This policy will apply to sellers who utilize Amazon Partnered Carriers to ship inventory to Amazon Fulfillment Centers. If discrepancies in package weight, dimensions, or freight class (where applicable) are identified during transportation, Amazon's system will automatically adjust the corresponding shipping charges.

Per Amazon's official announcement, if the declared dimensions exceed actual values, the system will issue a refund of the fee difference to the seller's account. Conversely, if the declared dimensions are smaller than the actual measurements, Amazon will charge the seller the additional difference. All related notifications will be accessible through the seller's Inbound Performance dashboard, providing clear visibility into discrepancies and fee adjustments.

In response to seller inquiries, Amazon forum administrators clarified that this is not a new fee but rather an automatic correction mechanism within the existing fee structure. When discrepancies between declared shipping information and actual transportation services occur, the system ensures that charges accurately reflect fulfillment costs. Although default values may be auto-filled by Amazon during some processes, sellers retain full authority to edit these details and bear ultimate responsibility for the accuracy of their declared shipment data.

Amazon stated that this initiative aims to align its transportation services more closely with market pricing and enhance the competitiveness of shipping rates offered through the Partnered Carrier Program.

However, some sellers have expressed concerns about the new policy. Despite conducting precise measurements and weigh-ins prior to shipment, some sellers continue to receive adjustment notices, with certain fee adjustments nearing the original shipping costs. These situations have raised questions about potential errors or systemic issues, prompting calls for an appeal or review mechanism to prevent unfair charges.

As this policy takes effect, FBA sellers will face heightened accuracy expectations when declaring shipment information. Moreover, the policy places greater emphasis on Amazon's transparency regarding measurement methodologies and fee adjustment processes, which will be critical in maintaining seller trust moving forward.