How to start retail arbitrage in the UK: a 2026 beginner's guide

Retail arbitrage — buying discounted stock in UK shops and reselling it on Amazon — is one of the lowest-cost ways to start selling on Amazon. This guide walks through how to actually begin in 2026, in the order you'd do it, with the beginner mistakes to avoid. (For the "should I even bother?" question, see is retail arbitrage still worth it in 2026.)

1. Understand the model

You buy a branded product cheaper than it sells for on Amazon.co.uk, send it to Amazon (FBA) or ship it yourself (FBM), and pocket the difference after fees. Your profit is the Amazon sale price minus Amazon's fees, VAT and what you paid. That's it — the whole skill is finding items where that gap is big enough and the product actually sells.

2. Set up the basics

• Amazon selling account. You can start on the Individual plan (pay per item) and move to the Professional plan (monthly fee) once volume justifies it.
• Register with HMRC. Treat this as a business from day one — register as a sole trader (or company) and keep records of every purchase and sale. If your taxable turnover passes the VAT registration threshold, you must register for VAT — check the current threshold on GOV.UK, as it changes.
• A separate bank account for the business makes bookkeeping far easier.

This is general information, not tax or legal advice — confirm your obligations with HMRC or an accountant.

3. Learn to read a deal before you spend money

This is the step beginners skip and regret. Before buying anything, check:

• Amazon sale price and whether there's a healthy Buy Box.
• Fees and VAT — referral fee, FBA fulfilment fee and VAT, or your "profit" is fiction. See Amazon FBA fees explained and the 2026 fee changes.
• Demand — Best Sellers Rank and sales history, so you don't buy something that takes a year to sell.
• Competition — how many FBA sellers share the listing.
• Your thresholds — most sellers want around 30% ROI and a £3–£4 minimum profit.

Run the numbers with our free UK FBA calculator before you buy, or scan the barcode in-store with Axivelo to see profit, ROI, the most you should pay and demand on one screen. A scanner or calculator that includes 2026 UK fees is essential — see the best UK FBA scanner apps.

4. Know where to source

Common UK starting points are discount and clearance retailers — B&M, Home Bargains, The Range, Wilko-style stores — plus supermarket clearance ends, end-of-line and seasonal sales, and shops doing store closures. Go where stock is marked down below its normal retail price; that's where the Amazon gap appears.

5. Check eligibility and brand gating

Before you buy a pile of one product, confirm you're allowed to list it. Many brands and categories are gated (need approval), and some brands restrict resellers entirely. Check eligibility in Seller Central — a profitable item you can't list is worthless. Treat any in-app "risk" indicator as a prompt to verify, not a guarantee.

6. Prep, send and sell

For FBA, you label and box items to Amazon's requirements and ship them to a fulfilment centre; Amazon stores, picks, packs and ships to customers and handles most returns. For FBM you store and ship yourself — cheaper to start, more work per order. Most retail-arbitrage sellers use FBA for the time saving once they're past the first few orders.

7. Track, learn, repeat

Keep records of what sold, how fast, and your real margin after fees. Over a few sourcing trips you'll learn which shops and categories work for you, and your buying gets sharper. Tools that export clean records (for example to an HMRC MTD-friendly CSV) save pain at tax time.

Common beginner mistakes

• Buying on shelf price alone — always check Amazon fees, VAT and demand first.
• Ignoring VAT — it can turn a "profit" into a loss.
• Chasing ROI % on tiny items — a 50% ROI on a £2 item is £1; mind the cash-profit floor.
• Buying slow sellers — great margin is worthless if the stock sits for months.
• Skipping gating checks — don't buy what you can't list.

Start small and check everything

Retail arbitrage rewards discipline, not luck. Start with a small budget, check every buy against your thresholds, and scale only what works. If you do that, the gap between UK shop prices and Amazon prices is still there to be worked in 2026.

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