Find your UTR number

You get a Unique Taxpayer Reference (UTR) when you:

  • register for Self Assessment
  • set up a limited company

It’s a 10-digit number. It might just be called ‘tax reference’.

You’ll get your UTR by post 15 days after you register. It takes longer if you live overseas.

You can usually see your UTR sooner in your Personal Tax Account or the HMRC app.

This guide is also available in Welsh (Cymraeg).

Where to find your UTR

You can find your UTR number:

  • in your Personal Tax Account
  • in the HMRC app
  • on previous tax returns and other documents from HMRC (for example, notices to file a return or payment reminders)

Get help from HMRC

If you cannot find your UTR on any documents or online, contact HMRC.

If you have a limited company, you can request your Corporation Tax UTR online. HMRC will send it to the business address that’s registered with Companies House.

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