Amazon.com Inc. is rolling out significant changes to its fee structure for third-party sellers, a move that could reshape pricing strategies and profit margins across its vast marketplace. The update, which takes effect over the next quarter, introduces revised fulfillment fees, storage costs, and referral rates that will impact millions of independent merchants using Fulfillment by Amazon (FBA) and Seller Fulfilled Prime (SFP) programs.
The changes arrive at a time when competition in e-commerce is intensifying, with Walmart Marketplace, Shopify Inc., and newcomers like Temu and Shein vying for seller attention. Amazon, which now counts third-party sellers for more than 60% of its retail sales, is seeking to optimize warehouse space and improve delivery speed during peak shopping seasons while encouraging sellers to align inventory with demand forecasts.
Under the new fee structure, standard-size FBA fulfillment fees will rise by a small percentage, while storage fees will see steeper increases for aged inventory that sits in warehouses longer than 180 days. This change is designed to free up space in Amazon’s logistics network and reduce the strain on fulfillment centers ahead of major events like Prime Day and the holiday rush. Sellers with high sell-through rates, however, will benefit from new performance credits that partially offset fees if inventory turns quickly.
Amazon is also introducing granular low-inventory-level fees, which penalize sellers who keep stock levels below demand thresholds, a move aimed at ensuring faster delivery for Prime customers. Conversely, merchants maintaining healthy stock levels will receive additional visibility in search results and Buy Box eligibility — a critical driver of sales on the platform.
Another notable change is the introduction of return processing fees for categories with unusually high return rates, such as apparel and footwear. While Amazon has traditionally absorbed much of the cost of free returns, rising logistics expenses and consumer behavior have prompted the company to pass more of the cost back to sellers.
Industry observers say the new fees could squeeze small and mid-sized sellers, particularly those operating on thin margins or carrying slow-moving SKUs. Many merchants may be forced to reprice products, consolidate SKUs, or adjust sourcing strategies to maintain profitability. Larger sellers with sophisticated inventory forecasting tools are expected to adapt more easily, leveraging Amazon’s expanded analytics dashboards to stay ahead of demand fluctuations.
The changes align with Amazon’s broader push toward operational efficiency. The company has invested heavily in warehouse robotics, AI-powered forecasting, and regionalized logistics networks to speed fulfillment and cut shipping costs. The updated fee model incentivizes sellers to adopt these efficiencies by rewarding those who maintain optimal inventory levels and penalizing those who rely on Amazon warehouses as long-term storage facilities.
For some sellers, the new structure may accelerate adoption of multi-channel fulfillment (MCF) solutions, allowing them to diversify beyond Amazon’s ecosystem while still leveraging its logistics capabilities. Others may explore alternative platforms such as Walmart Marketplace or direct-to-consumer storefronts built on Shopify to balance costs and maintain control over margins.
Despite the added costs, Amazon’s marketplace remains one of the most lucrative channels for small businesses seeking scale. The company reports that U.S.-based third-party sellers sold more than 4.1 billion items in 2024, generating record gross merchandise value (GMV). With its unparalleled customer reach and Prime membership base, Amazon continues to offer sellers access to one of the world’s most valuable pools of online shoppers.
The long-term impact of the new fees will depend on how quickly sellers adapt and whether the changes lead to improved buyer experiences. Faster delivery, better-stocked inventory, and fewer delayed shipments could boost overall customer satisfaction, benefiting both Amazon and its marketplace partners. For sellers, however, the challenge will be balancing these demands while maintaining profitability in an increasingly competitive e-commerce landscape.
Amazon has stated that the updated fee schedule and guidelines are now available in Seller Central, giving merchants time to analyze the changes before they take effect.