Ecommerce seller calculators
Free tools for UK online sellers built on current HMRC rates.
Seller Take-Home Calculator
Join marketplace fees, COGS and UK tax in one place. Enter your gross sales, platform fees and cost of goods to see true take-home after income tax and Class 4 NIC. 2026/27 rates.
VAT Threshold Tracker
Track your rolling 12-month gross sales against the £90,000 VAT registration threshold. The threshold bites on gross selling price, not the net payout after platform fees.
Sole Trader vs Ltd Company (Sellers)
Compare sole-trader and limited-company take-home for UK marketplace and ecommerce sellers. Runs on your selling profit after platform fees and COGS using 2026/27 rates.
Side Hustle Tax Checker
Check whether your side-hustle income is within the £1,000 trading allowance, and estimate how much income tax and Class 4 NIC you owe on top of your day-job salary. 2026/27 rates.