Free tools
No sign-up, no email, nothing to buy. The tax ones are the bits every UK trade gets wrong, and they're the same sums our app does on a real invoice.
Tax and money
CIS deduction calculator
Materials out, 20% or 30% off the labour, and what actually lands in the bank.
Open itVAT reverse charge checker
Six questions, and the wording your invoice needs if it applies.
Open itFlat Rate or Standard?
Your turnover and your costs, both schemes, which one leaves you more.
Open itPrices and quoting
Price lists, 35 trades
What the work goes for, with a calculator on every page that turns your numbers into a ballpark and then into a real quote.
Open itAnswers
Straight answers to the questions trades actually ask about quoting, deposits, chasing and getting paid.
Read themThese are a guide, not tax advice. The rules come from GOV.UK and the rates were checked on 22 September 2026. If a job is unusual or a lot of money rests on it, ask your accountant or HMRC.