How the Amazon UK FBA calculator works
The referral fee (15% for most categories, minimum £0.25) is charged on the full price the customer pays — including VAT. If you are VAT-registered, 20% of the price is remitted to HMRC, and Amazon adds VAT to its own fees unless you supply a valid VAT number. The calculator handles both toggles, adds the FBA fulfilment fee for your size band and storage, and shows profit, margin, ROI and break-even in pounds.
Frequently asked questions
How much does Amazon UK take per sale?
Around 15% referral on the VAT-inclusive price plus an FBA fulfilment fee of roughly £2–£5 for standard-size items, plus monthly storage. Non-VAT-registered sellers also pay 20% VAT on Amazon's fees.
Is the UK referral fee charged on the VAT-inclusive price?
Yes. Amazon calculates referral fees on the total sale price including VAT and any shipping charged, which is why the effective fee on your net revenue is higher than the headline 15%.
Do I need to register for VAT to sell on Amazon UK?
UK-established businesses must register once taxable turnover exceeds £90,000; overseas sellers storing stock in the UK must register from the first sale. Check HMRC guidance for your situation.