Amazon FBA Fees Explained (2026)
Fulfillment by Amazon can feel like a black box of deductions. Money lands in your account, but by the time Amazon has taken its cut, the profit you imagined can shrink dramatically. Understanding exactly what each fee is — and when it hits — is the difference between a listing that quietly loses money and one that scales. Here is every major FBA fee in 2026, in plain English.
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The four fee families you need to know
Amazon's fee structure looks complicated, but almost every charge falls into one of four buckets: the referral fee Amazon takes for using its marketplace, the fulfillment fee for picking, packing, and shipping your order, the monthly storage fee for holding your inventory, and the long-term storage fee that penalizes inventory that sits too long. Master these four and you can forecast your true landed cost per unit with confidence.
1. Referral fees — Amazon's commission
The referral fee is a percentage of the total sale price, charged on every unit you sell whether you use FBA or fulfill orders yourself. For most categories it sits around 15%, but it ranges widely — some categories are lower, others considerably higher. The fee is calculated on the full item price including any shipping you charge, so a higher price always means a higher referral fee in absolute dollars.
There is usually a minimum referral fee per item as well, which matters if you sell inexpensive products. On a very cheap item, that minimum can quietly eat a huge slice of your margin.
2. Fulfillment fees — the cost of Amazon doing the work
When Amazon stores, picks, packs, and ships your product, it charges a fulfillment fee based primarily on the item's size tier and weight. Small, light items cost the least; oversize and heavy items cost dramatically more. This is why two products with identical sale prices can have wildly different profit — a lightweight phone case and a bulky yoga mat are not remotely equal once fulfillment is factored in.
Dimensional weight matters too. A large but light product may be billed on its volume rather than its actual weight, so bulky packaging can silently inflate your fees.
The single biggest fee mistake new sellers make is choosing a product without checking its size tier first. Weight and dimensions decide your fulfillment fee before you sell a single unit.
3. Monthly inventory storage fees
Amazon charges for the space your inventory occupies in its fulfillment centers, billed per cubic foot per month. Rates are higher in the final quarter of the year, when warehouse space is scarce ahead of the holiday rush. Fast-moving inventory barely feels this fee; slow sellers that sit on shelves for months can rack up meaningful storage costs.
4. Long-term (aged) storage fees
Inventory that lingers past a certain age gets hit with an additional surcharge on top of standard storage. This is Amazon's way of nudging you to keep merchandise moving. Dead stock is doubly painful: it ties up your cash and it bleeds fees every month it fails to sell. Watching your inventory age is one of the highest-return habits a seller can build.
A side-by-side view of the fee families
Here is how the four families compare at a glance so you can see what drives each one:
| Fee type | What it's based on | When it hits | How to reduce it |
|---|---|---|---|
| Referral fee | % of sale price (category dependent) | Every sale | Sell in lower-fee categories; avoid over-pricing |
| Fulfillment fee | Size tier & weight | Every sale | Choose smaller, lighter products; tighten packaging |
| Monthly storage | Cubic feet held per month | Monthly | Match reorder quantity to true sell-through |
| Long-term storage | Age of aging inventory | Monthly on old stock | Liquidate or remove slow movers early |
Fees that catch sellers off guard
Beyond the big four, a handful of situational charges surprise sellers regularly:
- Removal and disposal fees when you pull unsold inventory out of a warehouse.
- Returns processing in certain categories, where Amazon charges to handle a returned item.
- Low-inventory and placement surcharges tied to how you send stock into the network.
- The subscription cost of a Professional selling plan, which is easy to forget when calculating true margin.
Quick tip
Before you commit to a product, model every fee against a realistic sale price. A 30% gross margin can evaporate to single digits once fulfillment and storage are subtracted — better to learn that on a spreadsheet than after ordering 1,000 units.
Track your real numbers with Helium 10 Profits
Manually reconciling every fee against every payout is tedious and error-prone. Helium 10's Profits dashboard pulls your sales, refunds, and Amazon fees into one view so you can see net margin by SKU without exporting a single report. When you catch fee-related overcharges, its Refund Genie tool helps you identify reimbursements Amazon owes you. Seeing the true, fee-adjusted picture is the first step to pricing every product for genuine profit.
Ready to put this into action?
Helium 10 gives you the tools in this guide in one dashboard. Start free through our link.