Terms and conditions

Using the calculators

These tools give estimates based on the details you enter and the limits explained on each page. They are not HMRC services or official payslips, and they do not provide personal financial advice. Check important decisions with payroll, HMRC or an adviser who knows your circumstances.

Why a result can differ

Your tax code, other income, benefits, irregular pay and payroll rounding can all affect the amount you receive. Historical NI estimates use the approximations explained beside the results. A downloaded report records your calculation; it does not confirm a legal entitlement.

Questions about the service

Email [email protected]. You do not need an account to use these calculators, and we do not sell a paid service here.

Sources: HMRC Income Tax rates, employee NI rates and Scottish Income Tax. Checked 23 October 2026. For help with your own tax or debts, speak to HMRC, payroll or an adviser.