Free tools for UK small businesses and trades
Small, fast tools that do one job properly and run entirely in your browser. No account, no upload, no catch. Built for sole traders, freelancers, subcontractors and small companies in the UK.
UK invoice generator
Build a compliant UK invoice with VAT at 20%, 5% or 0%, CIS deductions on labour, the construction reverse charge and statutory late-payment terms, then save it as a PDF.
Late payment interest calculator
Work out statutory interest at base rate plus 8% and the fixed compensation owed on an overdue business invoice, with wording you can paste into a reminder.
IBAN checker
Check an IBAN's country, length and checksum against the international registry and see the sort code, bank code and account number inside it. Covers 89 countries.
EV salary sacrifice calculator
What an electric car through your employer's scheme really costs each month: income tax and National Insurance saved, benefit-in-kind tax for 2026/27 to 2028/29, and a minimum wage check. England, Wales, Northern Ireland and Scotland.
Domain name checker
See whether your business name is free as a .co.uk, .uk, .com and nine other extensions, straight from the registries. Taken names show their renewal date and registrar.
More on the way
Suggestions for the next tool are welcome on the About page.