What Is a UTR Number and How Do I Get One?

What Is a UTR Number?

A UTR number (Unique Taxpayer Reference) is a 10-digit number issued by HMRC to identify you or your business for tax purposes.

If you’re self-employed, a sole trader, a company director, or need to complete a Self Assessment tax return, you’ll almost certainly need a UTR number.

Many people only realise they need one when they try to file a tax return or register as self-employed — which can cause delays if left too late.

What Is a UTR Number Used For?

Your UTR number is used by HMRC to track your tax records. You’ll need it when you:

• File a Self Assessment tax return

• Register as self-employed

• Communicate with HMRC about your tax

• Pay income tax or corporation tax

• Appoint an accountant to act on your behalf

Without a UTR, you won’t be able to submit a tax return.

Who Needs a UTR Number?

You’ll usually need a UTR number if you are:

• Self-employed or a sole trader

• A company director

• A landlord receiving rental income

• Someone with untaxed income

• Required to complete a Self Assessment tax return

Limited companies receive a separate UTR for corporation tax once incorporated.

How Do I Get a UTR Number?

You get a UTR number by registering with HMRC.

If you’re self-employed:

You must register for Self Assessment. HMRC will then issue your UTR by post.

If you’ve set up a limited company:

HMRC automatically sends a UTR to your registered office address after incorporation.

This process can take up to 10 working days, so it’s important not to leave it too late.

👉 You can register directly via HMRC here:https://www.gov.uk/register-for-self-assessment

Where Can I Find My UTR Number?

If you already have a UTR, you can usually find it on:

• Previous tax returns

• Letters from HMRC

• Your HMRC online account

• Your accountant’s records

If you’ve lost it, HMRC can resend it — but this can take time.

What Happens If I Don’t Have a UTR?

Without a UTR number:

• You can’t file a Self Assessment tax return

• You risk missing deadlines

• You may receive penalties

• You could delay paying tax correctly

This is why registering early is so important.

Common UTR Mistakes to Avoid

• Registering too late

• Losing HMRC letters

• Confusing a personal UTR with a company UTR

• Waiting until January to sort it out

• Assuming PAYE employees never need one

If HMRC asks you to file a return, you must have a UTR.

How VIP Accounting Ltd Can Help

At VIP Accounting Ltd, we help individuals and business owners across Benfleet, Essex and the UK with:

• Registering for Self Assessment

• Obtaining a UTR number

• Filing tax returns correctly and on time

• Managing ongoing HMRC compliance

• Acting as your agent with HMRC

If you need help getting a UTR or filing your tax return, you can learn more about our Self Assessment services here: https://www.vipaccounting.co.uk/our-services

Or speak to our team directly via our contact page.

https://www.vipaccounting.co.uk/contact-us

FAQs

How long does it take to get a UTR number?

Usually around 10 working days after registering with HMRC.

Is my UTR the same as my National Insurance number?

No — they are completely different.

Do I need a UTR if I’m employed?

Not usually, unless you have other untaxed income or HMRC asks you to file a return.

Can my accountant get a UTR for me?

Yes — an accountant can handle the registration and communication with HMRC.

Author

Kyle Randall, Founder of VIP Accounting Ltd, works closely with business owners and individuals to provide clear, practical guidance on UK tax, Self Assessment, and HMRC compliance.

VIP Accounting Ltd is a strategic accounting and tax advisory firm based in Benfleet, Essex, supporting individuals, sole traders, and businesses across the UK with Self Assessment, tax planning, accounting, and HMRC compliance.