How to Find Your Tax Reference Number

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A tax reference number identifies which employer you work for and appears on your payslip or in other HMRC documents. You can submit your tax return accurately through this reference number. It helps HMRC track your tax records and ensures your tax filing is completed correctly.

 

Make sure you include your tax reference to meet the deadline and avoid penalties while submitting your tax return. You can maintain tax compliance and communicate with HMRC by applying this reference number.

 

Do you think a Unique Taxpayer Reference and a tax reference number are the same? The answer is not; they are separate from each other. TAJ Accountants will streamline to remove your doubts and help to determine what a tax reference number actually is and why it’s necessary.

What is a Tax Reference Number?

A tax reference number is a unique identification. HM Revenue and Customs (HMRC) provides it to track the tax system and payments for individuals and businesses.

 

In the UK, there are various types of tax reference numbers, such as Unique Taxpayer Reference (UTR), VAT registration number, and Self-Assessment Registration Number. Each number indicates a specific purpose, and taxpayers need to streamline these numbers for accurate tax treatment.

 

You can manage your tax reference number on official HMRC documents or payslips.  Also, you can directly check your Personal Tax Account online or contact HMRC.

Types Of Tax Reference Numbers in the UK

In the UK, HMRC introduces different tax reference numbers based on your tax bands. These are –

 

Unique Taxpayer Reference (UTR): HMRC uses a 10-digit UTR number for sole traders, partners, and company directors. It is required for self-assessment tax returns.

 

National Insurance Number (NIN): Most employees and individuals have a personal 9-digit identifier number. It is used to track individual Income Tax and National Insurance.

 

PAYE Reference Number: You can see a 3-digit tax office number, followed by letters and numbers (e.g., 987/AB456), on your payslip to determine your employer’s PAYE scheme.

 

VAT Registration Number: A 9-digit number used to register your business with HMRC and submit your VAT returns.

 

Corporation Tax Reference (CT UTR): HMRC exclusively assigned a 10-digit number for Corporation Tax purposes.

 

Company Registration Number (CRN): HMRC uses this number to identify the company in tax-related activities. So every business needs to register with Companies House for a CRN.

Why You Need a Tax Reference Number

In the UK, a tax reference number is crucial for smooth communication with HMRC and maintaining compliance with tax laws. HMRC identifies your tax records and processes your tax affairs accurately under this number. You need it to –

 

  • You can identify your business and link tax records correctly by using your tax reference number
  • Submit your self-assessment tax return on time
  • If you want to register as self-employed or a business, you need it
  • Employers use it to report employee earnings and calculate taxes correctly
  • It helps to prevent mismatched records or identity theft by verifying taxpayers’ identities
  • You are applying for a mortgage loan, and your lender asks for tax details. That’s why you need it.

Your tax payments or returns may miss the deadline or be recorded with incorrect tax details without a tax reference number.

Where to Find Your Tax Reference Number

Where you find your tax reference number depends on the type of reference you need and your employment status.

If you’re an employee, your Employer Reference Number can usually be found on your payslip, P60, P45, or in correspondence from HMRC relating to your employment.

And if you’re registered for Self Assessment, your Unique Taxpayer Reference (UTR) is shown on your tax return, HMRC letters and notices, and in your HMRC online account. HMRC also sends your UTR by post when your Self Assessment registration is confirmed.

For a limited company, your Corporation Tax reference appears on your CT603 Notice to Deliver a Company Tax Return and other Corporation Tax correspondence from HMRC.

When your business is VAT registered, your VAT registration number can be found on your VAT registration certificate, VAT returns, and HMRC correspondence. It should also appear on the invoices your business issues.

If you cannot find the document you need, check your HMRC online account first. Most tax reference numbers can be accessed there once you’re logged in.

Need to Find a Lost Tax Reference Number?

Misplacing a tax reference number is common, and in most cases, it can be recovered quickly.

When you need your Unique Taxpayer Reference (UTR), check your HMRC online account first. It is available under your Self Assessment details. You can also find it on previous HMRC letters, such as Self Assessment notices or filing reminders.

If you’re looking for an Employer Reference Number, check your payslips or your latest P60. If you no longer have these documents, your employer’s payroll department should be able to provide the reference.

For Corporation Tax or VAT reference numbers, start by checking previous HMRC correspondence. If you cannot find the relevant documents, HMRC can usually confirm the reference once you’ve passed their security checks.

If you’re still unable to locate your reference number, contact HMRC directly. Having your National Insurance number or company registration number ready will help them verify your identity and deal with your request more quickly.

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How TAJ Accountants Can Manage Your Tax Reference Number

Finding a tax reference number should not be stressful or time-consuming. Whether you need it for a mortgage application, business registration, or an HMRC enquiry, TAJ Accountants can help by:

  • Registering as your authorised HMRC agent allows us to access and verify your tax reference numbers on your behalf.
  • Ensure your UTR, Corporation Tax reference, and VAT registration number are correctly set up and linked to your HMRC records.
  • Preparing essential tax documents for mortgage and remortgage applications, including SA302s, Tax Year Overviews, and tax reference numbers.
  • Making sure your Making Tax Digital (MTD) records are correctly linked to the appropriate tax references helps to avoid reporting errors.
  • Keeping your tax records organised throughout the year, so your reference numbers are always available when you need them.

TAJ Accountants is a small business accountants firm helping individuals, landlords, and company directors across London manage their tax obligations with confidence. Book a free consultation today and let our team help you keep your tax records accurate, organised, and easily accessible.

Conclusion

Your tax reference number is essential for dealing with HMRC, whether you’re filing a Self Assessment tax return, registering for VAT, applying for a mortgage, or managing your business tax affairs. Knowing which reference you need and where to find it can save valuable time and help avoid unnecessary delays.

Many people only realise the importance of their tax reference number when they need it urgently. Keeping your tax records organised and maintaining access to your HMRC online account will make it much easier to find the right reference whenever it’s required. For further details, contact TAJ Accountants’ expert team members as soon as possible.

Frequently Asked Questions

What is a tax reference number in the UK?

In the UK, the term tax reference number can refer to different numbers depending on the context. In employment, it commonly means your Employer Reference Number, which HMRC uses to identify your employer’s PAYE scheme. This is different from your Unique Taxpayer Reference (UTR), which is used for Self Assessment and Corporation Tax.

What is the difference between a UTR and a tax reference number?

A UTR is a unique 10-digit number issued by HMRC when you register for Self Assessment or set up a limited company. It identifies you or your business for tax purposes. An Employer Reference Number, on the other hand, belongs to your employer and identifies the PAYE scheme through which your Income Tax and National Insurance are processed.

Does the UK have a Tax Identification Number (TIN)?

The UK does not use a single universal Tax Identification Number (TIN). The correct number depends on the purpose. This may be your National Insurance number, UTR, or VAT registration number, depending on whether the request relates to employment, Self Assessment, Corporation Tax, or VAT.

How do I get a UTR number if I don't have one?

HMRC issues a UTR when you register for Self Assessment or incorporate a limited company. You cannot request a UTR separately. Once your registration is complete, HMRC sends it by post to your registered address, usually within around 10 days.

Can I find my tax reference number online?

Yes, in many cases. Your UTR is available through your HMRC Personal Tax Account and the HMRC app. Your VAT registration number can be found in your VAT online account. Your Employer Reference Number is not shown in your personal HMRC account because it belongs to your employer. But you can find it on your payslip or P60.

What should I do if I have lost my UTR?

The quickest way to retrieve your UTR is by logging into your HMRC Personal Tax Account. If you cannot access your account, check previous HMRC letters, such as a Self Assessment reminder or notice to file. If you still cannot find it, contact HMRC. After verifying your identity, they will send your UTR by post.

Disclaimer

The information provided in this blog is for general informational purposes only and is based on secondary research from publicly available sources, including government websites, professional publications, and other online resources. While TAJ Accountants strives to ensure that the information presented is accurate, current, and reliable, we make no guarantees regarding the completeness, accuracy, or suitability of the content.

Any errors, omissions, misinterpretations, or misjudgments are entirely unintentional. Tax laws, regulations, and financial circumstances can change frequently and may vary depending on individual situations.

Abul Hyat Nurujjaman
Abul Hyat Nurujjaman is a multi-award-winning accountant and Founder & CEO of TAJ Accountants. As a leading cloud accounting expert and trainer, he helps businesses streamline finances with modern technology. He also serves on the Intuit QuickBooks Accountant Council, contributing to the future of digital accounting.

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