Amazon UK · FBM & FBA · updated September 2026
Amazon FBA Fees Calculator UK
Estimate Amazon FBA fees and FBM take-home after referral, fulfilment, ads and returns.
Updated 3 September 2026 · Assumptions
Amazon FBA Fees Calculator UK
UK fee model · decision aid
Take-home after fees, cost, postage, ads and returns.
| Sale total (price + postage charged) | £0.00 |
| Platform fees | £0.00 |
| Product + your postage + extras | £0.00 |
| Sales VAT remitted | £0.00 |
| If sale sticks (no return) | £0.00 |
Quick answer
Referral is modelled at ~15% (category rates often 7–15%). For FBA, replace the fulfilment field with Amazon’s size-band quote.
Amazon FBA fees and FBM referral in the UK
Amazon does not have one fee. Sellers usually feel three layers:
- Referral fee — category percentage of the sale (often about 7–15%, with a small minimum). This calculator uses a mid-range ~15% decision aid.
- Fulfilment — for FBA, Amazon’s size/weight band quote. For FBM, your own postage (enter it as shipping cost).
- Storage, long-term and removal — not auto-included. Add them in “extra cost” if they matter for this SKU.
People searching amazon fba fees or fba fee calculator uk usually need the FBA toggle with a real fulfilment number pasted in — not a guess. Confirm the live size-band quote in Seller Central, then use this page for take-home after cost, ads and returns. Full context: Amazon FBA fees UK guide.
Worked example: £45 sale with £4.50 FBA
Item £45, product cost £14, FBA fulfilment £4.50, ~15% referral, VAT on fees on, 5% returns, no ads.
Illustrative. Your category referral and size band will move the number.
| Component | Approx amount |
|---|---|
| Referral (~15% of sale) | ~£6.75 |
| FBA fulfilment (your quote) | £4.50 |
| VAT on those fees (if not reclaimable) | ~£2.25 |
| Product cost | £14.00 |
| Expected take-home after light returns | Often mid-teens — check the live panel |
Toggle to FBM, put your outbound postage in shipping cost, and compare. If FBA only wins with 0% returns and a fantasy fulfilment quote, do not send a pallet yet.
Storage fees and what this tool leaves out
Monthly storage, aged inventory surcharges and removal orders are real Amazon costs. They are SKU- and season-specific, so they are not baked into the default model. If you are holding slow stock, add an estimated storage cost per unit in the extra cost field, or run break-even in the compare tool.
When FBA is worth the cut
FBA is a fulfilment product, not a personality trait. It can win on conversion and time — only if contribution still clears after fulfilment, referral and returns. Run the same price and cost on FBM and FBA, then against eBay before you commit inbound.
How to use every field
These fields are the same idea on every platform calculator — only the fee stack behind the scenes changes.
- Selling price — what the buyer pays for the item (before postage).
- Product cost — what you paid for the item, including packaging materials if you want them in the number.
- Shipping charged — postage the buyer pays you. Marketplace fees often apply to item + postage.
- Your shipping cost — the label you actually buy. Charging £3.99 and spending £4.40 is a fee you invent for yourself.
- Ads % — promoted listings, boosts, Meta ads or TikTok spend as a share of the sale. Leave 0 if you never promote.
- Return rate — expected % of sales that come back. Fashion often needs 8–15%; electronics less.
- VAT on platform fees — turn on if you cannot reclaim VAT on marketplace fees (typical for many private / non-VAT sellers).
Same SKU on another platform?
This page only models Amazon FBA Fees Calculator UK. To rank eBay, Amazon, Depop, Vinted and the rest on one product, open the compare marketplace fees UK tool.
Other platform calculators
- eBay fees — Private £0 or business FVF — seller take-home after ads and returns.
- Vinted — Fee calculator for private and Pro — usually £0 to sell fashion.
- Depop — Processing fees — not the old 10%.
- Etsy — Listing, transaction and payment processing.
- eBay buyer protection — What the buyer pays on a UK private listing.
- Facebook Marketplace — Local £0 vs ~10% shipped checkout.
- Whatnot — UK live-selling fees: commission + processing.
- Shopify — Card fees plus the ads that bring the sale.
- TikTok Shop — 9% commission with ads and returns.
Decision aid only. Category rates, promotions and programme terms change — confirm live rates on the platform before you scale stock.
Frequently asked questions
How do I calculate Amazon FBA fees in the UK?
Add Amazon’s referral fee (often about 7–15% by category) plus your size-band fulfilment quote, then model returns. Paste the fulfilment figure into this calculator and compare against FBM and eBay.
What Amazon fees does this include?
An approximate referral fee plus, for FBA, the fulfilment amount you enter. Storage, long-term and removal fees are not included unless you add them as extra cost.
Is 15% accurate for my category?
It is a mid-range decision aid. Confirm the live referral rate in Seller Central for your category, then use this tool for take-home after cost and returns.
What should I paste for FBA fulfilment?
Use Amazon’s size-band fulfilment quote for that SKU — not a guess. Switch FBM vs FBA with the same price and cost so the ranking is fair.