Use this service to estimate how much Income Tax you should have paid for a previous tax year.

There are different ways to:

If you’re self-employed, use the HMRC self-employed ready reckoner to budget for your tax bill.

You may be able to claim a refund if you’ve paid too much.

Start now on the HMRC website

Before you start

You need to be:

You need details of:

  • your earnings, before and after tax - get this from your P60
  • any savings - get this from your bank statements
  • any Gift Aid donations you’ve made to charity

Who can’t use the tax checker

You can’t use the tax checker if you:

You can check you’ve paid the right tax by contacting HMRC or by getting help from an accountant.