Part 2: Understanding the Numbers

Part 2 explains where the money goes on every sale, so you can trust the profit figure before you buy.

Chapter	What it covers
5.1 The fees on every sale	Referral fees, FBA fulfilment fees, size tiers, Low-Price FBA and the surcharges added on top
5.2 Storage, returns and other fees	Monthly storage, long-term surcharges, returns, refunds, and the fees UK-only sellers don't pay
Chapter 6: VAT and your margins	VAT on Amazon's fees, registered vs not registered side by side, and VAT invoices
Chapter 7: Profit, ROI and cash flow	The profit formula, ROI, break-even, choosing your minimums and how long your money is tied up

Keep this Part handy and come back to it whenever a number puzzles you. ArbiSource works out the fees on every result for you. The aim is to understand what the numbers mean, so you can spot when one looks wrong and make confident decisions.

Fees change from time to time.

The figures in this Part come from Amazon UK's official pricing pages and rate card, and are shown excluding VAT, the way Amazon quotes them. Before relying on a figure, check the live page we link to. If it shows something different, the live page wins.