What are the monthly fees Amazon UK FBA sellers actually pay?

Amazon UK FBA fees catch most new sellers off guard because they're layered — the headline 15% referral fee is just the start. Here's every fee a UK FBA seller actually pays in 2026, with realistic numbers.

The fixed-cost layer (paid regardless of sales)

Pro Seller subscription: £25/month + VAT = £30/month. This is non-negotiable if you want access to most categories and lower per-sale fees. The Individual plan is £0.75/sale and unlocks fewer categories — only worth it if you'll do under 35 sales/month indefinitely (so basically nobody serious).

The per-sale layer (15% referral, varies by category)

Amazon UK's referral fee is typically 15% of the gross sell price (including VAT), with a £0.25 minimum. Some categories vary: Books 15%, Beauty/Health 8% on items under £10 OR 15% above, Consumer Electronics 8%, Industrial 12%, Watches 16%, Apparel 17%. Always verify the actual category-specific rate via Amazon's SP-API (our free /fba-fee-calculator does this live for any ASIN).

The FBA fulfilment fee (per unit shipped)

Amazon's pick-pack-ship fee. UK rates for 2026: Small standard (under 100g, fits envelope): ~£2.10/unit Large standard (under 1kg, fits 33×23×5cm): ~£2.85-£3.65/unit Small oversize: ~£5.50-£6.50/unit Large oversize: ~£7.50-£12+/unit Hazmat (batteries, aerosols): +£1-£3 surcharge per unit FBA fees update annually each January — and they always go UP. Build a 5-10% buffer into pricing.

The storage fee (per unit per month)

Amazon UK monthly storage fees for non-oversize: Jan-Sep: £0.05-£0.10 per unit per month Oct-Dec (Q4): £0.20-£0.50 per unit per month — DOUBLES, sometimes more. For oversize items, multiply roughly 4x. Plus aged-inventory surcharges if your stock sits unsold for 271+ days. The Q4 storage spike catches new sellers off guard. If you're slow-moving in November, you bleed money on storage. Plan inventory aggressively for September-October.

The returns reserve (the silent killer)

Amazon UK return rates by category: Apparel: 15-30% typical Electronics: 5-15% Beauty: 3-10% Toys: 5-12% Home & Kitchen: 3-8% Grocery (non-perishable): under 3% Returns cost you twice: the unit comes back un-sellable, AND Amazon charges a "removal fee" or "disposal fee" if you can't resell it. Always reserve 3-5% of gross revenue against returns. New sellers who don't see returns hit until month 2-3, then panic when their "profitable" units actually weren't.

Inbound shipping (the often-forgotten cost)

Getting your products from your prep location into Amazon UK's fulfilment network. Amazon's partnered carriers offer ~50% off list rates. Realistic per-unit: £0.30-£0.80 for small standard items £0.80-£1.50 for large standard £2-£5+ for oversize Self-shipping via Royal Mail / Hermes / Parcelforce is typically more expensive per unit unless you're shipping <5 units total.

Worked example: a £3,000/month UK FBA seller

Assume: 200 units/month at £15 average sell price, small standard category, 5% return rate. Gross revenue: £3,000 - Referral fees (15%): £450 - FBA fulfilment (£2.85 × 200): £570 - Storage (200 × £0.10): £20 - Returns reserve (5%): £150 - Inbound shipping (£0.50 × 200): £100 - Pro Seller subscription: £30 = Amazon-side costs: £1,320 = Net to you (before COGS): £1,680 If your COGS were £1,200, your actual NET PROFIT is £480/month — 16% margin on revenue. That's realistic for a beginner UK FBA seller doing arbitrage. Wholesale moves the math because COGS is lower per unit.

Free tool to compute this for any ASIN

Our free /fba-fee-calculator pulls live Amazon UK SP-API fees for any ASIN you enter. No signup, no rate limits. Use it before every sourcing decision — the difference between assumed fees and actual fees is often 10-30%, which is the difference between profitable and break-even.