Amazon FBA Fees UK Explained: What Selling Really Costs (2026)

By the Amzora Team · Updated July 2026 · 8 min read

"I'll buy for £4 and sell for £20" is how every Amazon business plan starts — and fees are why most of them are wrong. Here's every fee a UK FBA seller actually pays in 2026, and a worked example showing where the £20 really goes. (Exact rates change periodically; always confirm current figures in Seller Central's fee schedule and revenue calculator.)

1. The Selling Plan

Professional: £25/month + VAT. The Individual plan (£0.75 per item, no monthly fee) exists, but serious sellers need the Professional plan's advertising access and tools. This is your smallest fee — treat it as fixed overhead.

2. Referral Fees: Amazon's Commission

On every sale, Amazon takes a percentage of the total sale price (including delivery charge). Most categories sit around 15%; some differ — consumer electronics run lower (~7%), some categories higher. There's also a small minimum per-item fee in most categories. On a £20 product at 15%, that's £3 gone before anything else.

3. FBA Fulfilment Fees: Pick, Pack & Deliver

The per-unit fee for Amazon storing, picking, packing and delivering your order — determined by your product's size tier and weight. A small envelope-sized item might cost around £1.70–£2.30 to fulfil; a standard shoebox-sized parcel typically £2.80–£4.00; large and heavy items considerably more. Two design decisions control this fee forever: product dimensions and packaging dimensions. A packaging redesign that drops you one size tier saves that difference on every unit you ever sell — something we watch closely in our packaging design service.

4. Storage Fees

Monthly storage is charged per cubic foot/metre and roughly triples October–December. Slow-moving stock also attracts aged inventory surcharges after 180+ days. The lesson: FBA is a flow-through warehouse, not long-term storage — size your shipments to weeks of cover, not years.

5. The Fees Nobody Budgets For

• Returns processing — customer returns in many categories cost you the fulfilment fee again, and returned units aren't always resellable.
• Removal/disposal fees — getting unsold stock out of Amazon costs per unit.
• Inbound placement/prep fees — depending on how you split shipments and whether Amazon preps units for you.
• Digital services and regulatory adjustments — line items that appear on UK invoices and quietly shave margin.

The Worked Example: Where £24.99 Goes

That's a healthy product. Now rerun it with a £9.99 sale price and the same fixed fees — the maths collapses. This is why fee modelling belongs in product research, before stock is ordered, not after.

Three Ways Sellers Reduce Their Fees

1. Engineer the size tier. Design product and packaging to sit just inside a smaller tier — the single biggest controllable fee lever.
2. Manage stock velocity. Avoid Q4 storage on slow movers, clear aged inventory before surcharges, and use deals to keep stock flowing.
3. Make advertising efficient. Ad spend is a fee you control completely — well-managed PPC at 10% TACoS versus neglected campaigns at 25% is the difference between profit and breakeven.

Check Your Own Numbers

Amazon's free Revenue Calculator (in Seller Central) gives per-unit fee estimates for any product and size — use it on every candidate product. Or send us your idea: our Product Research Service (£300) builds the complete unit economics, fees and all, into a go/no-go report before you commit. Email us.