Work out your tax so far this tax year

Use this service to work out the tax on your income so far in the 2026 to 2027 tax year, and how much of it you have already paid.

We also forecast your tax for the whole tax year, so you can put money aside for your Self Assessment bill.

It takes around 5 minutes.

Before you start

You will need your income since 6 April and any tax taken off it. You can find these on your payslips, bank statements or business records.

Warning This is an estimate. Income Tax is worked out for the whole tax year, so your actual bill depends on all your income for the year.