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What is my Unique Taxpayer Reference (UTR) and Where Can I Get One?

  • 1 day ago
  • 3 min read
AI generated HMRC letter containing the UTR number.

What is a Unique Taxpayer Reference (UTR)?

A Unique Taxpayer Reference (UTR) is a 10-digit number issued by HM Revenue & Customs (HMRC) to identify you for tax purposes in the United Kingdom. It is mainly used when dealing with Self Assessment tax returns.


Think of it as your personal tax identification number with HMRC. You usually receive a UTR when you:

  • Register for Self Assessment

  • Become self-employed

  • Set up a limited company

  • Register certain partnerships, trusts or estates with HMRC


Your UTR stays the same for life, even if you change jobs or move house.


What Does a UTR Look Like?

A UTR is typically a 10-digit number, for example: 1234567890


This number is automatically assigned when HMRC creates your tax record.


Why Do You Need a UTR?

You may need your UTR if you:

  • File a Self Assessment tax return

  • Work as a sole trader or freelancer

  • Run a limited company

  • Register under the Construction Industry Scheme (CIS)

  • Work with an accountant who submits your taxes


Without a UTR, HMRC cannot link your tax return or payments to your record.


How to Get a UTR Number

The easiest way to get a UTR is by registering for Self Assessment.


Step 1: Register with HMRC


You should register if you:

  • Became self-employed

  • Need to submit a tax return

  • Have additional income not taxed automatically


Step 2: Wait for HMRC to Send Your UTR

Once registered, HMRC usually sends your UTR by post  to the address you used during registration within about 15 days. It may take longer if you live outside the UK.



Where Can I Find My UTR?

If you already have one, you can find your UTR in several places:

  • Your Personal Tax Account

  • The HMRC mobile app

  • Previous Self Assessment tax returns

  • HMRC letters such as notices to file or payment reminders 


If you still cannot find it, HMRC can send it to you by post after confirming your identity.


Does Everyone in the UK Have a UTR?

No. You only receive a UTR if you are registered for Self Assessment.

For example:

Person

UTR Needed?

PAYE employee only

Usually no

Self-employed worker

Yes

Company director filing Self Assessment

Yes

Landlords declaring rental income

Usually yes

Common Questions About UTR


How long does it take to get a UTR?

Usually about 10–15 days after registering for Self Assessment.


Can I get my UTR online instantly?

No. HMRC normally sends it by post for security reasons. However, once issued, you can view it through:

  • Your Personal Tax Account

  • The HMRC app


Is a UTR the same as a National Insurance number?

No.

UTR

National Insurance Number

Used for Self Assessment tax

Used for employment and benefits

10 digits

Combination of letters and numbers

Issued by HMRC for tax records

Issued by DWP for social contributions


Need Help With Your UTR or Tax Return?

At DUO Accountants, we know that dealing with HMRC can feel confusing — especially if you're newly self-employed or starting a business. If you need help, feel free to get in touch — we’re always happy to make tax simpler and less stressful.


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