Why Amazon's Fee Structure Keeps Evolving
Amazon regularly adjusts its fee schedules, and sellers who don't stay on top of these changes can find their margins shrinking without realizing why. In recent years, Amazon has introduced new fees, restructured existing ones, and rolled out incentives aimed at reshaping seller behavior — particularly around inventory management and inbound shipping.
Here's a breakdown of the most significant changes affecting Amazon sellers and how to adapt your business accordingly.
The New Inbound Placement Service Fee
One of the most discussed changes is the introduction of the Inbound Placement Service Fee, which affects FBA (Fulfillment by Amazon) sellers. Previously, Amazon's co-mingled inbound system allowed sellers to ship inventory to a single location and Amazon would distribute it across their fulfillment network at no direct charge. Now, sellers may be charged for this service depending on how they choose to send inventory.
Sellers have two main options:
- Minimal shipment splits: Send to fewer locations, but pay inbound placement fees
- Amazon-optimized splits: Ship to multiple locations yourself, potentially avoiding or reducing the fee
For high-volume sellers with large, standard-sized products, this fee can have a noticeable impact on per-unit costs. Review your inbound shipping strategy carefully.
Low-Inventory-Level Fees
Amazon introduced fees targeting FBA sellers who maintain consistently low inventory levels relative to historical sales velocity. The rationale is to encourage sellers to keep sufficient stock so Amazon can fulfill orders quickly — a core part of the Prime experience.
To avoid these fees, sellers should:
- Monitor their sell-through rate (units sold ÷ average inventory) regularly
- Improve demand forecasting to keep inventory levels balanced
- Avoid under-stocking popular ASINs ahead of peak seasons
FBA Fulfillment Fee Changes
Amazon also adjusted its FBA fulfillment fees — the per-unit fees charged for picking, packing, and shipping orders. Rates vary by product size tier and weight. Key updates include:
- Some small standard-size products saw modest fee reductions
- Large bulky items experienced increases in certain weight brackets
- A new returns processing fee applies to high-return-rate categories
What Sellers Should Do Now
- Recalculate your margins — use Amazon's Revenue Calculator or Seller Central's fee preview tool to see updated costs for your specific ASINs.
- Review your pricing — if fees have increased, consider whether a small price adjustment is viable without hurting competitiveness.
- Optimize product dimensions — if a product is borderline between size tiers, even small packaging adjustments can drop it to a lower fee bracket.
- Consider FBM as a backup — for lower-velocity or high-margin products, Fulfilled by Merchant (FBM) may now be more cost-effective than FBA.
- Stay subscribed to Amazon's seller news — fee changes are announced via Seller Central news and email; don't rely on third parties for first notice.
The Bigger Picture
Amazon's fee changes reflect the company's ongoing effort to manage its fulfillment network costs while encouraging behaviors that improve customer experience. As a seller, the most resilient strategy is to maintain healthy margins, diversify across channels where possible, and treat fee updates as a regular part of business planning — not a surprise event.