Chapter 2

Getting your UTR number

Learn about the different ways you can get a UTR number, how to apply for one, and where to find an existing UTR number.

UTR Numbers - Xero Tax

How to get a UTR number for the first time

There are a few ways you can apply for a UTR number. The quickest way to apply is by registering for self-assessment online. You can provide HMRC with all of the information they need in one step, and your UTR number and activation code will be sent to you. You can also call HMRC, or write a letter requesting a UTR number.

You’ll need some basic information to register for self-assessment, including:

  • Full name and date of birth
  • Address
  • National Insurance number
  • Phone number
  • Email address

If you’re a business owner, you’ll also need:

  • The date you became self-employed
  • Business type (limited company, general partnership etc)
  • Business address
  • Business phone number

How to find your UTR number

If you’re already registered for self-assessment, sign in to your government gateway and navigate to your personal tax account. You’ll see your UTR number at the top of the page.

Your UTR number will also be on letters relating to your tax account sent by HMRC, as well as notices to file your return and payment reminders.

If you still can’t find your UTR number, call HMRC’s self-assessment helpline.

Limited companies can request their Corporation Tax UTR number online. This will be sent to your registered business address, and you’ll need your company registration number and registered company name to hand.

How can I get my UTR number online?

  1. Wait to receive your UTR number by post (this can take up to 10 days if you’re in the UK, or 21 days if you’re abroad).
  2. Once you’ve received your UTR number, sign up for self-assessment.
  3. You’ll be sent an activation code about a week later.
  4. Once you’ve received your activation code, activate your account using the code to access self-assessment.

How can I get my UTR number by phone?

  1. Gather the personal and business details mentioned in ‘How to get a UTR number for the first time’ above.
  2. Call HMRC’s self-assessment helpline and request a UTR number. You may be asked to apply online.
  3. Wait to receive your UTR number by post.

How can I get my UTR number by post?

  1. Write a letter to HMRC requesting a UTR number.
  2. Wait for their return letter requesting more details.
  3. Once you’ve provided all the information requested, wait to receive your UTR number by post.

Everything you need to know about Unique Tax Reference numbers (UTRs)

Our comprehensive guide covers everything you need to know about Unique Tax Reference numbers (UTRs) for HMRC.

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