Understanding Amazon FBA fees in 2026
Amazon charges two main fees on every FBA sale. The referral fee is a percentage of your selling price — 15% for most categories, 8% for a handful such as consumer electronics and personal computers. The FBA fulfillment fee is a fixed amount per unit based on your product's size tier and shipping weight, covering pick, pack and delivery. On top of those, monthly storage fees accrue per cubic foot, with peak-season rates from October to December.
Where sellers get burned is treating the fulfillment fee as a guess. It changes with Amazon's periodic fee updates and jumps sharply between size tiers — a product a few grams over a weight boundary can pay a dollar more per unit. Always pull the current fee from Seller Central's Revenue Calculator or your listing's fee preview and paste it into this calculator.
Reading your receipt
The receipt shows four numbers that matter: net profit per unit after everything; margin (profit ÷ price); ROI (profit ÷ cash invested in the unit — the number that decides whether restocking beats putting the money elsewhere); and break-even price, calculated correctly so the percentage referral fee scales with the price. A common private-label benchmark is 25%+ ROI after PPC; below that, one round of ad-cost inflation or a fee increase can erase the product.
Frequently asked questions
What is the Amazon referral fee?
A percentage of the sale price Amazon charges on every sale — 15% for most categories, 8% for a few such as consumer electronics. It applies whether you use FBA or ship yourself.
Where do I find my exact FBA fulfillment fee?
In Seller Central, open the Revenue Calculator or the fee preview on your listing. The fee depends on size tier and shipping weight and changes with Amazon's periodic updates.
What ROI should an FBA product have?
Many private-label sellers target at least 25–30% ROI after ad spend. Wholesale and arbitrage models often run lower ROI but faster turnover.
Does this calculator include PPC?
Yes — enter your ad spend per unit (total ad spend ÷ units sold). Profitability before and after ads are very different numbers; this shows the honest one.
More free seller calculators: eBay calculator, Walmart calculator, Etsy calculator, Margin & Markup calculator — or the all-in-one calculator hub.