How to Calculate Amazon FBA Fees Before You Buy
A product can look profitable until Amazon's fees take their cut. Running the fee math before you buy is what separates profitable sellers from busy ones.
The main fees
- Referral fee: a percentage of the sale price, usually ~8–15% by category.
- FBA fulfillment fee: a flat fee based on size and weight.
- Monthly storage fee: charged by the volume your inventory occupies.
- Possible extras: long-term storage, returns processing, low-inventory or placement fees.
The simple profit formula
Sell price − referral fee − fulfillment fee − your product cost − inbound shipping and prep = your profit. Divide that profit by your cost to get ROI.
A quick example
Sell at $25, pay a ~15% referral ($3.75) and a ~$5 fulfillment fee, with a $7 product cost and ~$1 shipping/prep: profit is about $8.25, an ROI near 100% of a $8 cost basis. Always run the real numbers per product, not a rule of thumb.
Tools that help
Amazon's Revenue Calculator and seller tools like SellerAmp give exact fees by ASIN. For what to aim for after fees, see what ROI to target. Our leads arrive with fees and ROI already calculated so you can decide in seconds.
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