Free tools for UK freelancers
Small, free calculators built for UK sole traders and freelancers — no signup, no email required. More tools on the way.
Self-employed tax calculator
Estimate your UK Income Tax and Class 4 National Insurance, and see what you'll owe in January and July.
Late payment interest calculator
Work out the statutory interest and recovery fee on an overdue business invoice.
Freelance rate calculator
Work out the day rate to charge to hit your target take-home, allowing for time off, expenses and market benchmarks.
Day rate to salary calculator
Convert a freelance day rate into your gross annual billings and the employed salary it's really equivalent to.