7 Ways to Save Money on Amazon FBA Fees

Why FBA Fee Optimization Is Essential

Amazon FBA fees are one of the largest line items in any seller’s profit and loss statement. Between referral fees, fulfillment fees, storage fees, and inbound placement fees, it is not uncommon for Amazon to take 30% to 40% of your selling price before you even account for product cost and advertising. The sellers who maintain healthy margins are the ones who actively manage and minimize these fees rather than accepting them as fixed costs.

Here are seven practical strategies to reduce your FBA costs and keep more of every sale.

1. Optimize Your Product Packaging to Reduce Size Tier

Amazon’s fulfillment fees are based on the size tier of your product, and the boundaries between tiers create dramatic cost jumps. A product that measures 15.1 inches on its longest side falls into the “large standard” tier instead of “small standard,” and the fulfillment fee difference can be $1.50 or more per unit.

Review your packaging dimensions carefully. Can you reduce the box size by even half an inch? Can you switch from a rigid box to a poly bag? Small changes in packaging can drop your product into a cheaper size tier and save you thousands of dollars annually. Use Amazon’s fee preview tool to model the impact before making changes.

2. Manage Inventory to Avoid Aged Inventory Surcharges

Inventory that sits in Amazon’s warehouses for more than 181 days incurs a surcharge that escalates the longer it remains unsold. At the 365-day mark, the penalty becomes severe.

Monitor your Inventory Age report in Seller Central regularly. If units are approaching the 181-day threshold, take action. Run a targeted promotion or Lightning Deal to accelerate sales. Create a removal order to pull slow-moving stock back to your own storage or a third-party warehouse. In some cases, it is cheaper to donate or dispose of aged inventory than to continue paying surcharges on it.

Prevention is the best strategy. Improve your demand forecasting so you send appropriate quantities in the first place. Sending 90 days of inventory at a time, rather than six months’ worth, keeps your stock fresh and your fees low.

3. Use Amazon’s Partnered Carrier Program

When shipping inventory to Amazon’s fulfillment centers, the partnered carrier program offers significantly discounted rates through UPS and other carriers. Many sellers overlook this option and use their own shipping accounts, often paying two to three times more per shipment.

For small parcel shipments, partnered carrier rates are almost always the best deal. For palletized shipments, compare the partnered carrier LTL rates against quotes from your freight forwarder — the savings can be meaningful, especially for heavy or oversized shipments.

4. Reduce Inbound Placement Fees with Strategic Shipment Splitting

Since Amazon introduced inbound placement fees, sellers who send all inventory to a single location pay a premium. The fee drops substantially when you distribute inventory across multiple fulfillment centers.

Work with your prep center or freight forwarder to split shipments to at least three or four locations, qualifying for the partial distribution rate of $0.12 per unit instead of the full $0.30. For a seller shipping 10,000 units per month, this saves $1,800 monthly.

If your logistics setup can handle it, full distribution to five or more locations eliminates the inbound placement fee entirely.

5. Enroll Eligible Products in the Small and Light Program

Amazon’s FBA Small and Light program offers reduced fulfillment fees for products that meet specific criteria: priced under $12, weighing 3 ounces or less, and measuring within small standard dimensions. The fulfillment fee savings can be $1.00 or more per unit compared to standard FBA rates.

If you sell accessories, small tools, or lightweight consumables, check whether they qualify. The enrollment process is straightforward, and the per-unit savings are among the most impactful fee reductions available.

Note that Small and Light products may have slightly longer delivery times than standard Prime items, so monitor whether this affects your conversion rate.

6. Review Your Reimbursement Eligibility

Amazon occasionally loses, damages, or fails to properly account for inventory in its fulfillment centers. When this happens, you are entitled to reimbursement, but Amazon does not always issue it automatically.

Use a tool like Refunds Manager, GETIDA, or Helium 10’s Refund Genie to audit your account for unreimbursed discrepancies. Common issues include lost inbound shipment units, warehouse-damaged inventory, customer returns that were never restocked, and overcharged weight or dimension fees.

Many sellers recover hundreds to thousands of dollars per year through reimbursement audits. Some services work on a percentage-of-recovery basis, so there is no upfront cost.

7. Negotiate Better Supplier Pricing to Offset Fees

While not a direct FBA fee reduction, improving your cost of goods is the most effective way to maintain healthy margins as fees rise. Many sellers accept their supplier’s first quoted price without negotiation.

Request volume discounts for larger orders. Ask about payment term discounts — some suppliers offer 3% to 5% off for upfront payment instead of net-30 terms. Compare quotes from multiple suppliers rather than working with a single source. Even a $0.50 reduction in unit cost on a product selling 1,000 units per month puts $6,000 back in your pocket annually.

Also consider whether a different supplier location could reduce your shipping costs. A manufacturer closer to a major port can significantly lower your freight expenses, especially for sea shipments.

Putting It All Together

No single strategy will transform your margins overnight, but combining several of these approaches creates compounding savings. A seller who optimizes packaging ($1.00 saved per unit), reduces inbound placement fees ($0.18 saved per unit), avoids aged inventory surcharges ($0.50 saved per unit on average), and negotiates better supplier pricing ($0.50 saved per unit) is looking at over $2.00 in additional profit per unit. At 5,000 units per month, that is $10,000 in monthly margin improvement.

Review your fee structure quarterly, stay informed about Amazon’s fee changes, and treat cost optimization as an ongoing part of your business operations — not a one-time exercise.