Profit calculators, fee breakdowns, VAT tools, and more. Built for UK, EU, and global FBA sellers.
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True net profit after referral fees, FBA fees, COGS, PPC, and VAT.
Full referral and FBA fulfilment fee breakdown by category and size tier.
VAT liability on Amazon sales, FBA fees, and imports. UK, IE, and EU.
Break-even ACoS, target ROAS, and true profit at any ad spend level.
Return on ad spend, ACoS, and ad profitability from any campaign data.
Gross margin, markup percentage, and ROI from sale price and product cost.
Minimum sale price and break-even quantity given your fixed and variable costs.
Calculate ROI on wholesale purchases before you commit to buying.
Know exactly when to reorder and how many units to send in.
Estimate monthly sales and revenue from Amazon BSR and sale price.
Choose a selling plan, prepare for registration and understand account health before deciding whether FBA suits your UK business.
Learn what an Amazon FNSKU identifies, how it differs from other barcodes, and how to print and apply labels before sending FBA stock.
Follow your FBA stock from arrival at an Amazon fulfilment centre through receiving, storage, dispatch and returns, with replenishment tips for UK sellers.
How Does Amazon FBA Work in the UK?
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How to Send Products to Amazon FBA
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How to Start an Amazon FBA Business with Little Money
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Every calculator updates as you type. No submit button, no loading states.
Correct fee schedules, VAT rates, and currency for every supported market.
No email, no password, no cookie wall. Open a tool and use it.
Fee schedules updated every time Amazon makes a change. Always accurate.
Whether you're launching your first product on Amazon.co.uk or scaling an established FBA business, the right tools make the difference between guessing and knowing. Our free FBA tools are built specifically for the UK market — with accurate referral fees, FBA fulfilment costs in GBP, and VAT calculations at 20%.
Running a profitable FBA business on Amazon UK requires more than a good product. You need to know your exact net profit before you commit to stock, understand how VAT affects your margins, and calculate the true cost of every Amazon fee. The most essential FBA tools for UK sellers cover three areas: profit calculation (accounting for referral fees of 8–15% by category), FBA fulfilment fees (from £1.98 for small envelopes to £9.15+ for large items), and VAT at 20%. Without these numbers confirmed before you source, you're committing capital to guesswork.
Our UK FBA profit calculator gives you real-time results as you type — no submit button, no loading spinner. Enter your sale price, cost of goods, and product category, and you'll instantly see your gross margin, Amazon fees, VAT liability, and true net profit in pounds sterling. We use Amazon's current UK fee schedule, updated every time Amazon makes a change. Whether you're selling on amazon.co.uk as a sole trader or a limited company, knowing your exact profit per unit before you source is the single most valuable thing any FBA tool can provide.
VAT is one of the most misunderstood aspects of selling on Amazon UK. The VAT registration threshold is £90,000 in rolling 12-month turnover — once crossed, you must register and charge 20% VAT on your sales. Even before you hit that threshold, Amazon charges 20% VAT on their FBA fees and referral fees, which directly affects your profit margins regardless of your registration status. Our FBA tools account for both scenarios: pre-registration (where VAT on Amazon's fees is an unrecoverable cost) and post-registration (where you charge VAT on sales but reclaim it on eligible expenses).
Helium 10, Jungle Scout, and similar platforms are powerful — but they start at £50–£100+ per month. For sellers validating a product or managing a small catalogue, that's a meaningful cost hitting your profit before you've sold a single unit. Our FBA tools are permanently free, require no account, and have no usage limits. We believe every UK Amazon seller deserves access to accurate profit calculators and up-to-date fee data without a paywall in the way. The numbers you need to make a sensible sourcing decision should cost nothing.