What are UTR numbers? What does UTR mean?

What are UTR numbers? What does UTR mean?
Ade Bankole
Ade Bankole
Money transfer & finance blogger at Azimo

Posted: Thu 8th Jul 2021

If you’re newly self-employed or starting a small business, you’ll need a UTR number. And if you need information on UTR numbers, you’re in the right place. Discover what they are, what they look like and why you need one for your taxes.

What does UTR mean?

UTR means 'Unique Taxpayer Reference' and is a number you get from Her Majesty's Revenue & Customs (HMRC). If you're employed by someone else, you don’t need a UTR. But if you're entering self-employment, you'll need one to track your yearly tax records.

Also known as ‘tax references’, UTRs are 10 digits long and sometimes include a letter 'K' at the end. Once you get your UTR number, it stays the same for life.

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Why you need a UTR number

You’ll only need a UTR number if you submit a self-assessment tax return. Individuals who need to file a tax return include those who:

  • Are self-employed or freelance

  • Own a limited company

  • Earned over £100,000

  • Owe any tax on savings, dividends or capital gains

  • Earned over £10,000 from savings interest or investment income

  • Earned £2,500 or more in untaxed income such as commission

A UTR number helps HMRC identify and track your tax records. This in turn helps them work out your annual Income Tax and National Insurance contributions.

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How to get a UTR number

Your journey into self-employment starts with registering for Self-Assessment with the HMRC. You can register:

  • Online at the HMRC website

  • By telephone on 0300 200 3310

  • By post at: Pay As You Earn and Self Assessment, HM Revenue and Customs, BX9 1AS

To speed up the process, you’ll need the following details to hand

It can take up to seven days for your UTR to arrive but when it does, it'll come by post. You’ll receive a letter titled Welcome to Self Assessment, which will have your tax reference on it.

Where to find your UTR number

If you’ve lost or can't find your UTR number, it will be on a previous tax return or your Welcome to Self Assessment letter.

If you submit a paper tax return, your UTR is on the first page, just above your National Insurance number. For online tax returns, your UTR is on the second page below your last name and above your National Insurance number.

What is a corporation tax UTR?

Corporation or company tax UTRs are references used by businesses instead of individuals.

HMRC issues corporation tax UTRs to all limited companies registered with Companies House. Because personal UTRs are only issued to self-employed people, they can’t replace a corporation UTR.

It is possible to have both a personal and corporation tax UTR as long as both ‘companies’ are kept separate.

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Ade Bankole
Ade Bankole
Money transfer & finance blogger at Azimo
Ade Bankole is the resident expert on money transfer and financial affairs at Azimo, Europe's leading digital money transfer company.

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