These are the fictional example figures from our guide Amazon UK seller fees explained (fee figures checked against Amazon's UK fee pages, guide updated 27 Oct 2026; the buy, prep and shipping costs are made up). Replace every figure with your own before you buy anything.

1 · The sale

Sale price (what the buyer pays, inc. VAT)

Units you expect to sell a month optional, for monthly profit and plan fee

2 · Amazon fees (you type these in)

Copy each figure from Seller Central, the FBA Revenue Calculator or Amazon's UK fee pages for this product. Leave a box empty if it doesn't apply. Fees are normally shown excluding VAT.

Referral fee % of the sale price for your category and price band

Referral fee minimum per item, if your category has one

FBA fulfilment fee per unit, for this size tier and season

Surcharge on fulfilment fee e.g. a fuel and logistics surcharge, if one applies

Monthly storage rate £ per cubic foot per month, for the months you'll hold stock

Months in stock before it sells average

Packaged size, used only for storage (cubic feet are worked out for you):

Length

Width

Height

Other Amazon fees per unit e.g. inbound placement, low-inventory or aged-stock fees

Selling plan fee per month split across the units you sell that month

3 · Your costs per unit

Buy price per unit

Prep and labelling per unit

Shipping to Amazon per unit shipment cost ÷ units in it

Anything else per unit packaging, returns allowance, card fees

4 · VAT I am VAT-registeredThen output VAT on each sale is taken off your profit.

This product is standard-ratedUntick for zero-rated goods such as most books and children's clothing. Check HMRC's rules for your product. My buy price includes VAT I can reclaimThe calculator then uses the price without that VAT as your cost.

Add VAT to Amazon's feesTick this if Amazon charges you VAT on its fees and you can't reclaim it (common if you are not VAT-registered). Check your monthly fee invoices.

VAT rate UK standard rate is 20%

Your target ROI to work out the most you can pay

Know which products are worth it before you buy

The calculator tells you if one product makes money. The Method FBA course shows you how to find those products week after week: sourcing, reading Keepa, UK VAT and fees, and when to walk away.

See the course — £299 Free UK FBA starter framework

Questions

Why don't you fill in Amazon's fees for me?

Amazon's UK fees depend on category, price band, size tier, weight and season (peak and non-peak), and they change several times a year. A calculator with old rates built in gives confident wrong answers. Copy today's figures for your product from Seller Central or the FBA Revenue Calculator instead. Our fees guide explains each one.

How is the referral fee worked out?

Your referral percentage times the sale price the buyer pays (including VAT), or the per-item minimum if that is higher. Some categories use different percentages for different price bands, so pick the rate for your actual sale price.

How is VAT handled?

If you tick "VAT-registered" and the product is standard-rated, output VAT is the sale price × rate ÷ (100 + rate), so one sixth of the price at 20%. If your buy price includes VAT you can reclaim, the calculator uses the price without it. If you can't reclaim VAT on Amazon's fees, tick that box and the VAT is added on top of the fees. This is a guide, not tax advice: schemes such as the Flat Rate Scheme work differently.

What do ROI and margin mean here?

ROI is profit ÷ everything you spent to get the unit to Amazon (buy price, prep, shipping and other costs). Margin is profit ÷ sale price. Break-even buy price is the buy price where profit is £0.

Is anything I type sent anywhere?

No. The sums run in your browser. Your last inputs are saved only in this browser so they're there next time. "Copy share link" puts your inputs in the link itself, so only share it with people you want to see them.