How to Find My UTR Number Easily and Quickly

When dealing with tax affairs or registering as self-employed, having the right reference numbers is essential. Many people find themselves wondering how to find my UTR number when paperwork arrives or online tax portals ask for verification. A Unique Taxpayer Reference is a ten-digit code issued by tax authorities, such as HMRC in the UK, to identify individuals and businesses for tax purposes. Knowing where to locate this document or digital record saves time and prevents unnecessary stress during tax season.

What is a UTR Number and Why Do You Need It?

Your Unique Taxpayer Reference serves as your official identification number for all tax-related matters. Whether you are filing an annual tax return, paying self-assessment tax, or communicating with the tax office regarding your accounts, this number must be provided. Without it, matching payments to your specific account becomes difficult, which can lead to delayed processing or potential administrative penalties.

This ten-digit sequence is typically generated automatically when you register for self-assessment, set up a limited company, or register as a sole trader. Even if you stop trading temporarily, your UTR number remains the same for life, meaning you will never need to apply for a new one even if your employment status changes.

Where to Look for Your UTR Number

If you have misplaced your reference code, several common documents and digital locations usually display it clearly. Checking these places first is the fastest way to retrieve the information without contacting customer support.

1. Check Previous Tax Returns and Official Letters

The most reliable place to find your UTR number is on past correspondence sent by the tax authority. Look through physical or digital copies of:

Your previous self-assessment tax returns or tax calculation statements (SA302).
Official welcome letters received when you first registered as self-employed.
Statements of account or payment reminders issued by the tax agency.
Notice to file letters sent at the start of each tax year.

Your UTR number is almost always printed near the top right corner of these official documents, often labeled as “Tax Reference” or “UTR.”

2. Log Into Your Online Tax Account

Digital government portals make accessing tax information straightforward. If you have previously set up an online gateway account with the relevant tax authority, you can log in to view your details.

Navigate to the official government tax portal login page.
Sign in using your user ID, password, and multi-factor authentication method.
Go to your personal dashboard or self-assessment section.
Review your profile or account summary, where your UTR number should be visible next to your name or business details.

3. Check Your Payslips or P60

If you are primarily employed through Pay As You Earn (PAYE) but also file a self-assessment tax return, your 10-digit UTR might appear on your P60 end-of-year certificate or certain employer-issued documents, though this is less common for individuals who have never been registered for self-assessment.

What to Do If You Still Cannot Find Your UTR Number

If a thorough search of your digital inbox, physical files, and online accounts yields no results, you can contact the tax authority directly for assistance. When calling customer service, be prepared to answer security questions to verify your identity. Representatives will typically ask for your full name, current address, date of birth, and National Insurance number before disclosing your Unique Taxpayer Reference.

Once you retrieve the number, store it securely in a password manager or a safe physical location to ensure you never have to search for it again when tax deadlines approach.