Amazon FBA Fees UK 2026: Referral, Fulfilment & Storage

What are Amazon FBA fees in the UK?

FBA (Fulfilment by Amazon) means Amazon stores, picks, packs and ships. You pay:

• Referral fee — category percentage of the item price (and often shipping where applicable), with a small minimum on many categories.
• Fulfilment fee — based on size tier and weight. This is the number people mean when they search “fulfilled by amazon cost” or “amazon fulfillment fees uk”.
• Storage — monthly fee per cubic foot; aged inventory can cost more. Seasonal peaks raise rates.
• Other — returns processing, removals, FBA inbound defects. Add these as extra cost when they matter.

FBM (Fulfilled by Merchant) still pays referral, but you buy your own labels. Use the calculator’s FBM toggle and put real postage in shipping cost.

How to calculate Amazon FBA fees (practical method)

1. Look up the live referral rate for your category in Seller Central (do not trust a blog from 2019).
2. Get Amazon’s fulfilment quote for your pack dimensions and weight.
3. Open the Amazon FBA fees calculator UK, choose FBA, paste the fulfilment amount, enter price and product cost.
4. Add a realistic return rate and any ads %. Toggle VAT on fees if you cannot reclaim VAT.
5. Switch to FBM with the same price/cost — keep only fulfilment vs postage different — and decide.

Worked example: £45 item, £4.50 FBA

Assume ~15% referral on a £45 sale (£6.75), £4.50 fulfilment, £14 product cost, VAT on fees on, 5% returns, no ads. Take-home often lands in the mid-teens — well below private eBay on fees alone. FBA only wins if sell-through and time saved clear that gap.

Amazon FBA storage fees UK

Storage is why slow SKUs die quietly. Monthly rates change by month and aged inventory surcharges can erase margin on dead stock. This guide’s calculator focuses on per-sale referral + fulfilment; add storage as extra cost when you are holding inventory more than a few weeks.

FBA vs FBM — which is cheaper?

Rarely FBA on fees alone. FBA can win on conversion, Prime badge and time. Run both in the calculator, then read Amazon FBM vs FBA fees UK. If FBA only wins with 0% returns and a fantasy fulfilment quote, do not send a pallet.

Amazon FBA vs eBay fees

Private eBay is often cheaper on platform fees. Business eBay vs Amazon depends on category FVF versus referral + fulfilment. Compare the same SKU on the eBay fee calculator and this Amazon tool before you pick a primary channel.

Sources and next step

Confirm referral and fulfilment in Amazon Seller Central. Then paste the fulfilment quote into the free Amazon FBA fees calculator and stress-test returns before you buy stock.