How Much Does Amazon FBA Cost?

Referral fee — Amazon's commission on each sale.

FBA fulfillment fee — a per-unit charge for picking, packing, and shipping.

Storage fees — monthly rent for the space your inventory occupies.

Professional selling plan — $39.99/month if you sell more than ~40 items a month.

Most categories pay 15% of the total sale price, with a $0.30 minimum per item. Rates range from about 8% (some electronics and grocery) up to roughly 20% (jewelry). This is charged on every sale regardless of how you fulfill it.

This is a flat per-unit fee based on your product's size and weight — not its price. In 2026 it starts around $3.30 for small standard items, roughly $4.98 for large standard, and climbs steeply for oversize products. Fees rose by an average of $0.08 per unit on January 15, 2026, and a fuel surcharge of about 3.5% of the fulfillment fee was added in April 2026.

Amazon charges monthly for the space your inventory uses — around $0.75 per cubic foot from January to September, jumping to about $2.40 per cubic foot in the October–December peak. Inventory sitting longer than 365 days also incurs a long-term storage fee (about $6.90 per cubic foot).

Inbound placement fees when Amazon distributes your stock across warehouses.

A low-inventory-level fee if your stock runs thin relative to sales.

Aged-inventory surcharges on slow-moving stock.

Returns processing fees in some categories.

These are easy to miss because they show up buried in settlement reports, not at the point of sale.

The referral fee scales with price, but the fulfillment fee does not — it is set by size and weight. That combination means cheap products carry a far higher effective fee rate than expensive ones of the same size.

Each row below uses the rates already covered above: a 15% referral fee plus $3.30 (small standard) or $4.98 (large standard).

The referral and fulfillment fees are the two you can predict per unit. These sit outside them and still reduce what you keep:

Product cost — what you paid your supplier per unit.

Inbound shipping — getting stock to Amazon, plus any placement fee.

Storage — monthly per cubic foot, roughly tripling in the Q4 peak.

The $39.99 monthly professional selling plan.

Advertising — PPC spend is separate from every fee on this page.

Returns and removals — returns processing in some categories, plus unsellable stock.

Tax set-aside and your own time on listings and support.

This is why a product that looks fine on referral plus fulfillment can still lose money once storage, ads, and returns land in the settlement report.

Most FBA margin surprises trace back to the same handful of habits.

Optimize packaging and size — fulfillment fees are driven by dimensions and weight.

Keep inventory lean to avoid storage and aged-inventory surcharges, especially in Q4.

Use Amazon's optimized inbound shipment splits to reduce or avoid placement fees.

Price with all fees in mind, and recalculate whenever you run a discount.

Amazon updates its fee schedule every year (most recently January 15, 2026) and the exact fulfillment fee depends on your specific product. Always confirm your current rates in Amazon Seller Central before pricing — and run the numbers through the Amazon FBA Profit Calculator.