Free tools
Free Tools for UK eCommerce Sellers
Practical calculators built by eCommerce accountants for the questions sellers ask most: what will this shipment cost to land, what is the real margin on it, and when do I need to register for VAT.
In short
eCounts offers free tools for UK online sellers: an import duty calculator, a commodity code lookup using the official UK Trade Tariff, a gross margin calculator, a VAT threshold checker, and profit calculators for Amazon, Shopify, eBay, Etsy and TikTok Shop. Each gives an estimate for planning, not tax advice.
Free tools for online sellers
Each tool runs in your browser. Nothing you enter is sent to us.
- UK import duty calculator
Estimate customs duty, import VAT and landed cost per unit from your goods value, freight, insurance and duty rate. - Commodity code lookupSearch the UK Trade Tariff by product, find your 10-digit code and see its duty rate and import VAT.
- Gross margin calculatorGross margin, markup and profit per sale after VAT, platform fees, delivery and advertising.
- VAT threshold checkerYour rolling 12-month turnover against the £90,000 threshold, with the dates that apply if you go over.
By platform
Profit calculators for each platform
Each one has that platform's current UK fees built in, so you can see what a single sale really earns.
- Amazon FBA profit calculatorReferral fee, FBA fulfilment fee and advertising per unit.
- Shopify profit calculatorShopify Payments fees, postage and advertising per order.
- eBay profit calculatorFinal value fee, per-order fee and promoted listings.
- Etsy profit calculatorTransaction, payment processing and listing fees.
- TikTok Shop profit calculatorPlatform commission and creator affiliate commission.
- Not sure which fees apply?We will work out your real margin by product and channel.
How to use these tools
Every tool on this page gives an estimate based on the figures you enter. It is a starting point for pricing and planning, not tax or customs advice, and it cannot account for every detail of your business.
If you want to understand the method behind the numbers, our guide on how to calculate UK import duty walks through it step by step. When you need the figures confirmed for real decisions, our import accounting service brings duty, freight and import VAT into your cost of goods sold properly.
Want the real numbers, not an estimate
Book a free discovery call and we will look at your landed costs, margins and VAT with you.
