Your tax code is used by your employer or pension provider to work out how much Income Tax to take from your pay or pension. HM Revenue and Customs (HMRC) will tell them which code to use.

This guide is also available in Welsh (Cymraeg).

Find your tax code

You can find your tax code:

If you check your tax code online or in the HMRC app, you can also:

  • find your tax code for previous tax years
  • sign up for paperless notifications - this means HMRC will email you when your tax code changes