Ultimate Guide to Tax Identification Numbers (TINs) in the UK

A Tax Identification Number (TIN), known as a TIN number, UK tax ID number, or tax identification number, is a unique identifier for taxpayers, managed by HM Revenue & Customs (HMRC) or Companies House. Unlike countries with a single TIN, the UK uses multiple tax ID numbers: Unique Taxpayer Reference (UTR), National Insurance Number (NINo), Company Registration Number (CRN), VAT registration number, and employer PAYE reference. These are issued by HMRC or Companies House based on your specific tax and business profile.

This comprehensive guide offers a clear and practical breakdown of all UK TIN types—what they are, who needs them, where to find them, and how to apply. Whether you’re a sole trader, freelancer, limited company, employer, or a non-resident, everything you need to navigate UK tax identification is right here.

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Why TINs Matter in the UK

UK TINs ensure tax compliance, streamline business operations, and enable international trade. More than 90% of UK businesses rely on accurate TINs for VAT compliance, while individuals need them for Self Assessment or benefits. From opening business bank accounts to filing tax returns, TINs are critical. The latest HMRC updates (June 2025) emphasize digital access to TINs, reducing paper-based communications.

• Tax Compliance: Submit Self Assessment, Corporation Tax, or VAT Returns.
• Business Operations: Register for PAYE, issue invoices, or secure loans.
• International Trade: Provide a foreign tax identifying number UK (e.g., NINo, UTR).
• Benefits: Access pensions, student loans, or state benefits with NINo.

Our registration services simplify compliance, ensuring you have the right TIN.

Key Takeaways

● UK TINs: UTR, National Insurance Number (NINo), Company Registration Number (CRN), VAT Number, and PAYE Reference.
● Issuers: HMRC (most TINs), Companies House (CRN).
● Uses: Tax filings, payroll, benefits, company registration, international trade.
● Security: Keep your UTR, National Insurance Number (NINo), and PAYE reference private and secure. Only share your Company Registration Number (CRN) and VAT number publicly—such as on invoices or websites—when required.
● Access: Find TINs in HMRC accounts, BRP, eVisa, the Companies House register, or in your Formationshunt Online Company Manager.

Who Needs a TIN in the UK?

UK TINs serve diverse groups:

● Individuals: Sole traders, freelancers, landlords filing Self Assessment for capital gains, rentals, or foreign income need a UTR or NINo.
● Businesses: Limited companies, partnerships, LLPs require CRN, UTR, VAT number, or PAYE reference for Corporation Tax, VAT, or payroll.
● Employers: Businesses with employees need a PAYE reference.
● Non-Residents: UK directors or shareholders living abroad need a taxpayer identification number UK (UTR, NINo).
● International Traders: Provide NINo or UTR as a foreign tax ID UK.
● Case Study: A non-resident entrepreneur used our incorporation services to secure a CRN and UTR, enabling Corporation Tax filings.

The terms “Tax Identification Number” or “TIN” are not commonly used in the UK by HMRC or Companies House. However, they are widely recognised internationally, especially in the EU, US, and other jurisdictions. If you’re conducting business abroad, you may be asked to provide your UK Tax Identification Number (TIN). In such cases, your UTR or CRN is typically used depending on the context.

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Types of TINs in the UK:

1. Unique Taxpayer Reference (UTR)

A Unique Taxpayer Reference (UTR), also known as a UK tax reference number, is a 10-digit tax ID number issued by HMRC for taxpayer identification.

What is a UTR number?

● Used for Self Assessment (individuals) or Corporation Tax (businesses).
● If you’re wondering, “What’s my UK tax ID for tax returns?”—this is likely it.

When Do You Use a UTR Number?

Your Unique Taxpayer Reference (UTR) is one of the key Tax Identification Numbers (TINs) in the UK. Whether you’re a freelancer, sole trader, or running a limited company, your UTR will come into play across several tax-related scenarios.

For Freelancers and Sole Traders

● Report Your Income: Use your UTR to fill out a Self-Assessment form for money from freelancing, tutoring, or renting a room. Example: Priya, a pet sitter, tells HMRC she earned £15,000.
● Pay Your Taxes: Send your Self-Assessment tax bill to HMRC with your UTR. Example: Tom, a tutor, pays £3,000.
● Join Construction Jobs: Sign up for the Construction Industry Scheme (CIS) with your UTR if you work in the building. Example: Raj, a painter, joins CIS.
● Report Big Sales: Sold a house or shares? Use your UTR to tell HMRC about the money. Example: Sarah reports £20,000 from a flat sale.
● Pay Child Benefit Fees: If you earn over £60,000 and get Child Benefit, use your UTR to pay the applicable charge or the fee.

For Limited Companies

● Sign Up for Company Taxes: Use your UTR to start Corporation Tax after forming your company.
● Submit Company Tax Forms: File Corporation Tax Returns (CT600) with your UTR.
● Pay Company Taxes: Use your UTR to pay Corporation Tax.
Start VAT or Payroll: Set up VAT (sales tax) or PAYE (employee tax) with your UTR.
● Update Company Info: Tell HMRC about new addresses or directors with your UTR.
● Change Tax Dates: Shift when your company reports taxes with your UTR.
● Pause Your Company: Tell HMRC your company stopped trading with your UTR.
● Talk to HMRC: Use your UTR for any tax chats with HMRC.

For Partnerships (LLPs/LPs)

● Join Partnership Taxes: Use your UTR to sign up for Self Assessment as a partnership. Example: A craft partnership joins HMRC.
● Report Partnership Money: File a Partnership Tax Return with your UTR. Example: A dance studio reports £100,000.
● Set Up VAT or Payroll: Start VAT or PAYE for your partnership with your UTR. Example: A bakery partnership sets up PAYE.
● Update Partnership Details: Tell HMRC about new partners or addresses with your UTR. Example: A partnership adds a member.

Quick Example

Lisa, a freelance pet sitter, uses her UTR to tell HMRC about £12,000 earned from dog walking, pay her £2,000 tax bill, and sign up for CIS for a construction gig. Alternatively, a freelance illustrator making over £1,000 a year uses their UTR to send a Self Assessment form to report their earnings.

Easy Tips

● Keep It Safe: Store your tax id number in your HMRC account.
● Check It Right: Look at HMRC letters to ensure your UTR is correct. Example: A wrong UTR can delay payments.
● Get Started Early: Sign up for taxes to get your UTR on time. Call HMRC (0300 200 3310) if it’s late.

Our tax support keeps your UK tax id number easy to manage.

Personal UTRs – Who Needs One?

HMRC issues personal UTRs to individuals who must report untaxed income or manage their own tax obligations under the Self-Assessment system. You may need one if you are:

• A sole trader or freelancer
• A partner in a business partnership or LLP
• A company director or shareholder
• An individual reporting Capital Gains Tax (e.g., on shares or property)
• Someone who receives income from renting property, foreign sources, investments, or tips and commissions
• A parent paying the High Income Child Benefit Charge

How to Get a UTR:

1. Individuals: Register for Self Assessment via HMRC’s Government Gateway if earning >£1,000 annually or reporting capital gains, rentals.
2. Companies/Partnerships: Issued upon incorporation at Companies House or Self Assessment registration.
3. Processing: ~15 days; HMRC sends UTR to your registered address.

Checklist for Self Assessment:

• NINo
• Passport/driving licence
• Proof of income (e.g., invoices)
• Business details

How to Find Your UTR:

You can find your UK tax ID number on HMRC letters, like tax return notices, or in your HMRC online account or app. If you’ve lost it, call the Self Assessment helpline (0300 200 3310). For a lost partnership UTR, contact HMRC’s Self Assessment department.

Note: You can’t request a company UTR if your business is:

• Dissolved or closed.
• Struck off the Companies House register.
• Changed to another structure, like a partnership.
• Recently incorporated (wait 3 weeks for your UTR to arrive by post).

Simplify UTR acquisition with our Accountancy Services. If you take our Accountancy services whether it’s your UTR, VAT registration, PAYE setup, or Corporation Tax filings, our expert team at FormationsHunt takes care of all your core tax obligations under one roof, ensuring full compliance from day one.

What’s the Difference Between a TIN Number and a Unique Taxpayer Reference (UTR)?

If you’re navigating the UK tax system for the first time, you’ll often come across terms like TIN and UTR. While they may seem interchangeable, they’re not exactly the same.

A Tax Identification Number (TIN) is a general term used to describe any number issued by HMRC (His Majesty’s Revenue and Customs) to identify taxpayers—whether individuals or companies. It’s an umbrella term that includes multiple identifiers based on the type of tax activity.

One of the most common types of TINs in the UK is the Unique Taxpayer Reference (UTR).

In simpler terms:
● TIN is the category.
● UTR is a specific tax number within that category.

Other examples of UK TINs include:
● VAT Number – for businesses registered for Value Added Tax.
● PAYE Reference Number – for employers managing payroll.
● National Insurance Number (NINo) – for individual taxpayers contributing to National Insurance.

FormationsHunt makes it easy.
When you form a company with us, we’ll help you secure the right TINs—whether it’s your UTR, VAT number, or PAYE reference—through our expert-led accounting support, so you stay compliant from day one.

2. National Insurance Number (NINo)

A National Insurance Number (NINo), commonly known as an NI number, is a vital UK tax identification number issued by HM Revenue & Customs (HMRC) or the Department for Work and Pensions (DWP). With a unique format of two letters, six numbers, and one letter (e.g., AB123456C), it serves as a personal tax ID number for tracking National Insurance contributions, personal tax, and access to essential public services. For many individuals, the NINo answers the question, “What is my tax ID number UK?” when managing employment, benefits, or international tax obligations. This section provides a comprehensive guide to understanding, obtaining, and locating your NINo, ensuring seamless navigation of UK tax identification.

What is a NINo?

The NINo is a cornerstone of the UK’s tax and social security systems, acting as a lifelong tax identity identifier for individuals. It links your National Insurance contributions—payments that fund services like the NHS and State Pension—to your personal record with HMRC and DWP. Beyond tax, the NINo facilitates access to a range of services, from employment to voting, and is often used as a foreign tax identifying number UK for cross-border financial dealings.

Its versatility makes the NINo indispensable for UK residents, non-residents working in the UK, and new arrivals holding a biometric residence permit (BRP) or eVisa. For example, a non-resident employee may use their NINo—found on the back of their BRP—to set up payroll and later apply for state benefits. Unlike other tax ID numbers like the Unique Taxpayer Reference (UTR) or Company Registration Number (CRN), the NINo is uniquely personal, ensuring your contributions and benefits are accurately tracked throughout your life.

Need clarity on your NINo or other tax IDs?

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Uses of a NINo

The NINo is a multi-purpose tax number UK, essential for various financial, employment, and civic activities. Its key uses include:

● Employment and Payroll: Employers require your NINo to process payroll, issue payslips, and submit P60 or P45 forms to HMRC, ensuring accurate income tax and National Insurance deductions.
● State Benefits: Claiming benefits like Universal Credit, Housing Benefit, Jobseeker’s Allowance, or State Pension requires a NINo to verify eligibility and process payments.
● Pensions: Your NINo tracks contributions toward your State Pension and may be used by private pension providers for administrative purposes.
● Student Loans: The NINo aligns student loan repayments with your income, managed through HMRC and the Student Loans Company.
● Banking and Financial Services: Opening bank accounts, Individual Savings Accounts (ISAs), or other financial products often requires a NINo to confirm your tax identity.
● Voting Registration: The Electoral Registration Office uses your NINo to verify your identity when registering to vote, enabling participation in elections.
● International Tax Compliance: For non-residents or those engaging in cross-border transactions (e.g., with US banks or EU businesses), the NINo serves as a foreign tax identifying number UK, facilitating compliance with international tax requirements.

Example: Sarah, a recent graduate, starts a job in Manchester. She provides her NINo to her employer for payroll setup, uses it to apply for a student loan repayment plan, and later registers to vote in local elections—all with the same NINo.

How to Get a NINo

Obtaining a NINo depends on your residency status and circumstances. Here’s a detailed guide to help you apply online for a National Insurance number:

● UK Residents: If your parents claimed Child Benefit, you’re automatically issued a NINo before turning 16, typically sent via a letter from HMRC. This ensures you’re ready for employment or benefits as an adult.
● Non-Residents or Ages 16-19: If you don’t have a NINo, apply online through HMRC’s website. You’ll need:
                  ○ A valid passport, biometric residence permit (BRP), eVisa, or EU national identity card.
                  ○ Proof of address (e.g., utility bill, tenancy agreement).
                  ○ Some applicants may require an identity interview to verify details, conducted in-person or remotely.
● BRP or eVisa Holders: Non-residents with a BRP can find their NINo on the back of the card. Those with an eVisa can access it via their UKVI account. Note: BRPs expiring after 31 October 2024 must transition to eVisa for continued NINo access, as physical cards are being phased out.
● Processing Time: New applications take approximately 4-6 weeks. Once approved, HMRC sends your NINo by post to your registered address.
● Important Note: Your NINo is lifelong and does not change, even if you leave and return to the UK. HMRC does not reissue NINos, so safeguard it carefully.

Example: Pooja, a non-resident moving to the UK, applies for a NINo using his BRP. After a remote identity interview, he receives his NINo in 5 weeks and uses it to start a job in London.

Non-residents applying for a NINo?

Our expert team guides you for a smooth process, guiding you through BRP and eVisa integration. Call us or chat with our experts via WhatsApp.

How to Find Your NINo

If you’ve lost your NINo or need to locate it, several sources can help. Here’s where to look:

● Biometric Residence Permit (BRP): For non-residents, check the back of your BRP for your NINo.
● eVisa: Access your NINo through your UKVI account, especially if your BRP has expired (post-31 October 2024).
● Employment Documents: Review payslips, P60 (end-of-year tax summary), or P45 (leaving a job) forms, which include your NINo.
● HMRC or DWP Correspondence: Check letters from HMRC (e.g., tax notices) or DWP (e.g., benefits statements) for your NINo.
● Online Accounts: Log into your HMRC online account or UKVI account to view your NINo.
● Request a Confirmation: If you’re unable to locate your National Insurance Number, you can either fill out form CA5403 and send it to HMRC or contact the National Insurance helpline at 0300 200 3500. Let them know that you’ve misplaced your National Insurance number.
● Processing Time for Confirmation: HMRC typically sends a confirmation letter within 15 days.

Example: Maria, a freelancer, misplaces her NINo. She checks her latest payslip and finds it listed next to her tax details, saving her the need to contact HMRC.

How to find my TIN number UK?

For personal tax, your NINo is likely on your BRP, eVisa, payslip, or HMRC account. You can ask us if you are not able to locate it.

Does a Tax Identification Number count as a National Insurance Number?

No, a NINo is just one type of tax identification number UK. While it’s used for personal tax, National Insurance contributions, and benefits, other UK TINs serve distinct purposes:

● Unique Taxpayer Reference (UTR): For Self Assessment or Corporation Tax filings.
● Company Registration Number (CRN): Identifies companies or LLPs for legal and tax purposes.
● VAT Registration Number: For businesses charging VAT.
● Employer PAYE Reference: For payroll and employer tax reporting.

Using the correct TIN for each task prevents delays or errors. For instance, providing a NINo instead of a UTR for Self Assessment could lead to HMRC rejecting your submission.

Confused about which TIN to use?

Our team clarify your UK tax ID number requirements, ensuring compliance for individuals and businesses alike. Feel free to call us anytime; otherwise, you can email or message us.

3. Company Registration Number (CRN)

A Company Registration Number (CRN) is a unique 8-character tax ID number UK issued by Companies House to identify limited companies, limited liability partnerships (LLPs), and other registered entities. Formatted as digits or letters with digits (e.g., 12345678, SC123456), the CRN serves as a company tax ID, verifying an organization’s legal existence for tax and regulatory purposes. For businesses, it often answers the question, “What is my taxpayer ID number?” alongside the Unique Taxpayer Reference (UTR). This section offers a detailed guide to understanding, obtaining, and locating your CRN, ensuring seamless compliance with UK tax identification requirements.

What is a CRN?

The CRN is a key tax identifier in the UK that confirms a company or LLP is legally registered with Companies House, the official business registry. It acts as a taxation number, enabling entities to fulfill legal and tax obligations, from filing annual accounts to registering for HM Revenue & Customs (HMRC) services. Unlike the National Insurance Number (NINo), which is personal, or the UTR, which is tax-specific, the CRN is a public identifier, often displayed on business documents and websites.

The CRN is essential for businesses operating in the UK, including startups, established firms, and non-resident-owned companies. For example, a new tech startup uses its CRN to open a business bank account and file Corporation Tax returns. Its public nature makes it a key tool for transparency, allowing suppliers, lenders, and customers to verify a company’s legitimacy via the Companies House register.

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Uses of a CRN

The CRN is a versatile company tax ID, required for a wide range of legal, tax, and operational tasks. Its key uses include:

● Filing Annual Confirmation Statements: Submit yearly updates to Companies House to confirm company details (e.g., directors, shareholders).
● Submitting Annual Accounts: File financial statements with Companies House and HMRC, ensuring compliance with reporting standards.
● Registering for Corporation Tax: Use your CRN to enroll with HMRC within 3 months of incorporation.
● Filing Company or Partnership Tax Returns: Submit Corporation Tax or Partnership Tax Returns to HMRC using your CRN and UTR.
● Paying Corporation Tax: Reference your CRN when settling Corporation Tax bills with HMRC.
● Registering for VAT or PAYE: Provide your CRN to enroll for Value Added Tax (VAT) or Pay As You Earn (PAYE) schemes.
● Filing VAT Returns or PAYE Reports: Use your CRN alongside other TINs to submit VAT Returns or payroll reports.
● Updating Companies House Records: Notify changes like registered office address, company name, or director appointments using your CRN.
● Filing Return of Allotment of Shares: Report new share issuances to Companies House.
● Issuing Share Certificates: Include your CRN on certificates for shareholder records.
● Appointing or Removing Directors/Secretaries: Update officer details with Companies House.
● Opening Business Bank Accounts: Banks require your CRN to verify the legal status of your company.
● Applying for Loans or Credit: Lenders use your CRN to check your company’s financial history on the Companies House register.
● Setting Up Supplier Accounts: Suppliers request your CRN to confirm your legitimacy before extending credit.
● Displaying on Stationery: Legally required to show your CRN on invoices, letterheads, websites, and other business materials.

Example: A London-based startup uses its CRN to file its first annual confirmation statement, open a business bank account, and display it on its website, ensuring compliance and credibility.

CRN Formats

The CRN differs depending on the region where the company is incorporated, reflecting the UK’s diverse business landscape. The table below outlines the formats:

Note: The format indicates where the company is registered, not its operational location. For example, a company with SC123456 is registered in Scotland but may operate across the UK.

How to Get a CRN

You can easily get a CRN when you register your company with us:

● Incorporate Your Business: Register a company, LLP, Limited by Guarantee, or e-seller business online with us—choose the structure that fits your needs. Provide details like company name, registered office address, and director information. Simply follow the steps, and we’ll handle the rest. If you need any help, feel free to contact us anytime.
● Receive Your CRN: Upon successful incorporation, Companies House issues your CRN instantly, included in the Certificate of Incorporation sent via email or post.
● Processing Time: Online incorporations are typically approved within 24 hours, making it a fast way to secure your company tax ID.

Example: Emma registers her consultancy firm online with Companies House. Within hours, she receives her Certificate of Incorporation containing her CRN, ready for Corporation Tax registration.

Incorporate today with our company formation services for an instant CRN and virtual office address, streamlining your business setup.

How to Find Your CRN

Can’t find your CRN? Here are a few places to check:

● Certificate of Incorporation: Check the original document issued by Companies House upon incorporation, available in email or hard copy. You can also access it anytime in your FormationsHunt Online Company Manager by logging in and navigating to the documents section.
● Companies House Correspondence: Review letters or emails from Companies House, such as confirmation statements or filing reminders, which include your CRN.
● Companies House Register: Search the Companies House register using your company name or partial details to retrieve your CRN instantly.
● Business Documents: Look at invoices, letterheads, or your website, where your CRN must be displayed by law.

Example: Where do I find my tax ID number? James, a business owner, searches his company name on the Companies House register and finds his CRN in seconds.

CRN in Context

For companies, the CRN often pairs with the UTR to answer, “What is my taxpayer ID number?” While the CRN establishes legal identity, the UTR handles tax filings. Using both correctly ensures compliance with HMRC and Companies House requirements.

4. VAT Registration Number

A VAT registration number—often called a VAT number—is a unique tax identifier in the UK, issued by HM Revenue & Customs (HMRC) to businesses registered for Value Added Tax (VAT). Formatted as a country code followed by 9 digits (e.g., GB123456789 for UK, XI123456789 for Northern Ireland), it serves as a tax number UK for businesses charging and reclaiming VAT. For VAT-registered entities, it answers, “What is my tax identification number UK?” for VAT-related obligations. This section provides a comprehensive guide to understanding, obtaining, and locating your VAT number, ensuring seamless compliance with UK tax identification requirements.

What is a VAT Number?

The VAT number is a critical tax identification number UK for businesses involved in the supply of taxable goods or services. It enables companies to charge VAT on sales, reclaim VAT on purchases, and report these transactions to HMRC. Unlike the National Insurance Number (NINo) for individuals or the Company Registration Number (CRN) for legal identity, the VAT number is specific to VAT compliance, ensuring businesses contribute to the UK’s tax system while maintaining financial transparency.

The VAT number is essential for businesses with a taxable turnover exceeding £90,000 (as of 2025) or those voluntarily registered for VAT to enhance credibility or reclaim costs. It’s also vital for international trade, particularly with EU countries, where it facilitates cross-border VAT processes. For example, a UK retailer uses its VAT number to issue invoices and reclaim VAT on business expenses, strengthening its cash flow.

Need to register for VAT?

Our VAT registration services streamline the process, ensuring your UK tax ID number is set up for compliance. Click here to learn more about how to register for VAT in the UK.

Uses of a VAT Number

The VAT number is a versatile tax number UK, used for several tax and business activities. Its key uses include:

● Issuing Invoices: Legally mandatory to display your VAT number on all invoices issued to customers, ensuring transparency and compliance with HMRC regulations.
● Filing VAT Returns: Submit quarterly or monthly VAT Returns to HMRC, reporting VAT charged and reclaimed, using your VAT number.
● Claiming VAT Refunds: Reclaim VAT paid on business purchases (e.g., equipment, services) through VAT Returns, improving cash flow.
● Engaging with Suppliers: Provide your VAT number to suppliers to verify your VAT-registered status, often required for business-to-business transactions.
● International Trade: Use your VAT number for cross-border transactions, such as EU VAT compliance or importing/exporting goods, to avoid double taxation or claim exemptions.
● HMRC Compliance: Reference your VAT number when communicating with HMRC about VAT queries, audits, or scheme changes (e.g., Flat Rate Scheme).

Example: A Manchester-based retailer includes its VAT number (GB123456789) on invoices, files quarterly VAT Returns, and reclaims VAT on shop fittings, saving thousands annually.

How to Get a VAT Number

Obtaining a VAT number involves registering with HMRC, either mandatorily or voluntarily. Here’s a detailed guide:

● Mandatory Registration: If your business’s taxable turnover exceeds £90,000 (2025 threshold), you must register for VAT within 30 days of crossing this limit. Apply online via HMRC’s website or by post using form VAT1.
● Voluntary Registration: Businesses below the threshold can register voluntarily to reclaim VAT on purchases, enhance credibility, or trade with VAT-registered clients. Submit the same application, providing financial projections.
● Required Information: Provide your Company Registration Number (CRN), Unique Taxpayer Reference (UTR), business details (e.g., turnover, trading start date), and bank account information.
● Processing Time: HMRC typically issues your VAT number within 20 working days, sent via a VAT registration certificate by email or post. Delays may occur if additional verification is needed.
● Effective Date: Your VAT number is active from the date specified on the certificate, allowing you to charge and reclaim VAT.

Example: Priya, a freelance designer, voluntarily registers for VAT to reclaim costs on software subscriptions. She applies online, submits her UTR, and receives her VAT number in 18 days.

Simplify your VAT setup with our VAT registration services, ensuring fast and compliant registration.

How to Find Your VAT Number

If you’ve lost your VAT number or need to locate it, several sources can help:

● VAT Registration Certificate: Check the certificate issued by HMRC upon registration, available in email or hard copy.
● Business Documents: Review invoices, VAT Returns, or correspondence with HMRC, where your VAT number must be displayed.
● HMRC VAT Online Account: You can view your VAT number and manage your VAT Returns by logging in to your HMRC VAT online account.
● Contact HMRC: Call HMRC’s VAT helpline on 0300 200 3700 with your CRN or UTR to retrieve your VAT number. Be prepared to verify your identity.
● Processing Time for Queries: HMRC typically confirms your VAT number within 5-10 working days if requested via phone or letter.

Example: Where can I find my UK tax identification number? Tom, a small business owner, finds his VAT number (GB987654321) on his latest VAT Return in his HMRC online account.

Lost your VAT number or other tax IDs?

Our secure portal helps you store and access your UK tax identification numbers safely.

VAT Number in Context

For businesses, the VAT number works alongside the CRN and UTR to manage VAT and Corporation Tax obligations. Unlike the NINo or Employer PAYE Reference, which are private, the VAT number is public, often shared with customers and suppliers. Using it correctly ensures compliance and supports efficient cash flow management.

Confused about your VAT number or other TINs?

Our tax compliance services clarify your UK tax ID number requirements, keeping your business compliant.

5. Employer PAYE Reference

An Employer PAYE Reference, often called an ERN number UK or PAYE reference, is a unique tax identification code assigned by HM Revenue & Customs (HMRC) to businesses and organizations managing payroll. Formatted as a number followed by a letter sequence (e.g., 123/AB456), it serves as an employer identification number UK, enabling employers to process employee taxes and National Insurance contributions. For businesses with staff, it answers, “What is my taxpayer ID number?” for payroll obligations. This section provides a comprehensive guide to understanding, obtaining, and locating your PAYE reference, ensuring seamless compliance with UK tax identification requirements.

What is a PAYE Reference?

The PAYE reference is a vital tax identification number UK for employers operating the Pay As You Earn (PAYE) system, which collects income tax and National Insurance contributions from employees’ wages. It identifies your business as an employer to HMRC, ensuring accurate reporting and payment of payroll taxes. Unlike the Company Registration Number (CRN) for legal identity or the VAT registration number for VAT purposes, the PAYE reference is specific to employer tax obligations, linking your payroll activities to HMRC’s records.

The PAYE reference is essential for any UK business with employees, including startups, small firms, and non-resident companies with UK staff. It’s also required for organizations like charities or trusts paying wages. For example, a tech startup uses its PAYE reference to issue payslips and file payroll reports, ensuring compliance with HMRC regulations.

Uses of a PAYE Reference

The PAYE reference is a critical tax number UK, required for several payroll and tax-related tasks. Its key uses include:

● Processing Payroll: Use your PAYE reference to calculate and deduct income tax and National Insurance contributions from employee wages, ensuring accurate payroll processing.
● Issuing Payslips and P60s: Include your PAYE reference on payslips and P60 forms (end-of-year tax summaries) issued to employees, as required by HMRC.
● Filing PAYE Reports: Submit Real Time Information (RTI) reports to HMRC through payroll software, detailing employee earnings and deductions, using your PAYE reference.
● Paying PAYE and National Insurance: Reference your PAYE reference when paying HMRC for income tax and National Insurance collected from employees, typically monthly or quarterly.
● Communicating with HMRC: Use your PAYE reference in correspondence or queries with HMRC about payroll issues, audits, or scheme changes (e.g., Small Employers’ Relief).
● Onboarding New Employees: Provide your PAYE reference to HMRC when registering new employees for payroll, ensuring their National Insurance Number (NINo) is linked correctly.

Example: A Bristol-based startup uses its PAYE reference (456/CD789) to process payroll for five employees, issue payslips, and submit monthly RTI reports to HMRC, ensuring compliance and timely tax payments.

How to Get a PAYE Reference

Obtaining a PAYE reference involves registering as an employer with HMRC. Here’s a detailed guide:

● Register as an Employer: If you hire employees or pay wages above the National Insurance threshold, register with HMRC before the first payday. Apply online via HMRC’s website or by phone (0300 200 3200), providing:
                  ○ Your Company Registration Number (CRN) or Unique Taxpayer Reference (UTR).
                  ○ Business details (e.g., name, address, trading start date).
                  ○ Employee details (e.g., number of staff, payroll frequency).
● Processing Time: HMRC typically issues your PAYE reference within 15 working days, sent via a welcome pack by post or email. You’ll also receive login details for HMRC’s online payroll services.
● Set Up Payroll: Once received, use your PAYE reference to configure payroll software or appoint a payroll agent to manage deductions and reporting.
● Important Note: Register early to avoid penalties, as HMRC requires setup before your first payment to employees.

Example: Ryan, a café owner, registers as an employer with HMRC before hiring two baristas. He submits his CRN online and receives his PAYE reference in 12 days, ready to process payroll.

How to Find Your PAYE Reference

If you’ve lost your PAYE reference or need to locate it, several sources can help:

● HMRC Welcome Pack: Check the initial letter or email from HMRC issued upon employer registration, containing your PAYE reference.
● Payroll Documents: Review payslips, P60 forms, or payroll reports generated by your software, which include your PAYE reference.
● Payroll Software: Log into your payroll system (e.g., Sage, Xero) to view your PAYE reference in the employer settings.
● HMRC Correspondence: Check letters or emails from HMRC related to payroll or National Insurance payments.
● Contact HMRC: Call the HMRC Employer Helpline at 0300 200 3200 with your CRN or UTR to retrieve your PAYE reference. Verify your identity with business details.
● Processing Time for Queries: HMRC typically confirms your PAYE reference within 5-10 working days if requested via phone or letter.

Example: How do I find my TIN number UK? Lisa, a small business owner, finds her PAYE reference (789/EF123) in her payroll software’s settings, avoiding a call to HMRC.

PAYE Reference in Context

For employers, the PAYE reference is used alongside the CRN and UTR to manage payroll and Corporation Tax obligations. Unlike the VAT number, which is public, the PAYE reference is private, shared only with HMRC and payroll providers. Using it correctly ensures accurate tax reporting and avoids penalties.

Step-by-Step Guide to Obtaining Your TIN

Where to Find Your TIN: A Comprehensive Checklist

Tips for Lost TINs:

● NINo: Use form CA5403 or check BRP/eVisa.
● UTR: Call HMRC; provide CRN for companies.
● CRN: Search Companies House.

Of course, Sir. Here’s a clearer, more elaborative and engaging version of the “Common Mistakes and How to Avoid Them” section that fits seamlessly into the blog and supports a non-expert audience while subtly promoting FormationsHunt’s value:

Common Mistakes When Handling UK TINs—and How to Avoid Them

Understanding your UK tax identification numbers is crucial for compliance. However, many individuals and businesses make small but costly mistakes. Here’s a breakdown of the most common errors and how to stay on the safe side:

Mistake 1: Thinking there’s only one TIN in the UK

Many assume there’s a single “UK TIN number” for everything, but multiple TINs exist for different purposes—and each serves a distinct function.

Solution:

• Use your UTR for tax filings like Self Assessment or Corporation Tax.
• Use your National Insurance Number (NINo) for benefits, pensions, and employment records.

Knowing which number is relevant for which task can prevent delays and rejections from HMRC.

Mistake 2: Sharing your UTR or NINo publicly

Some business owners mistakenly print their UTR or NINo on invoices, websites, or even business cards, thinking it boosts legitimacy. Unfortunately, this puts them at risk of identity fraud and unauthorised access to tax accounts.

Solution:

• Keep sensitive numbers (like UTR and NINo) private.
• Only display safe identifiers such as your Company Registration Number (CRN) and VAT number on public documents.
• Store private numbers securely—digitally encrypted or offline in a safe location.

Mistake 3: Missing tax registration or filing deadlines

Whether it’s failing to register for Self Assessment or missing your Corporation Tax deadline, delays lead to penalties.

Solution:

• Register early—ideally right after incorporation.
• Take advantage of our FormationsHunt compliance services. We track deadlines and send timely reminders so you never miss an important filing date.
• Timely filing isn’t just a good habit—it’s essential to avoid fines and legal troubles.
  Want to stay penalty-free? Check out our dedicated guide.

Mistake 4: Losing your TINs or forgetting where they’re stored

Misplacing your UTR or VAT number can stall filings and payments—especially during peak tax season.

Solution:

• Create and regularly access your HMRC online account, where most TINs can be retrieved.
• If you’re a FormationsHunt client, you can also securely view and manage these from our Online Company Manager dashboard.

Mistake 5: Using the wrong number for the wrong task

It’s common for new business owners to try using their National Insurance Number for tasks that specifically require a UTR, such as filing Self Assessment or paying Corporation Tax.

Solution:

• Always double-check which number is required for the action you’re taking.
• If unsure, consult our expert team—our Accountancy Support ensures you’re using the right identifier at the right time.

Mistake 6: Neglecting to monitor the expiration of BRPs (Biometric Residence Permits)

For non-UK nationals, using an expired BRP as ID can cause delays in UTR or PAYE registrations.

Solution:

• If your BRP has expired, you’ll need to switch to the eVisa (digital immigration status) through the UKVI system.
• Keep your immigration details updated and accessible.

Pro Tip from FormationsHunt:

With our all-in-one support system, you never have to juggle multiple TINs alone. From formation to filing, we streamline the entire process—backed by secure storage, expert advice, and automated reminders.

UK TINs vs. International TINs

Differences Between TIN Types

● TIN vs. NINo: NINo for National Insurance; TIN broader.
● TIN vs. UTR: UTR for Self Assessment/Corporation Tax.
● UTR vs. NINo: NINo for benefits; UTR for tax filings.
● CRN vs. UTR: CRN for legal identity; UTR for tax.

Keeping Your TINs Safe

● Public: CRN, VAT number on invoices, websites.
● Private: UTR, NINo, PAYE reference confidential.
● Tips: Use HMRC accounts.
● Our virtual office services protect your TINs.

Special Considerations for TINs

● Non-Residents: Required UTR for Self Assessment; NINo via BRP/eVisa.
● Dormant Companies: UTR for dormancy notifications.
● International Trade: NINo/UTR as foreign tax ID UK.
● CIS: UTR for contractors.
● Expired BRPs: Use eVisa via UKVI.

Case Study: A non-resident used our formation services for CRN and UTR.

FAQs

1. What is a TIN number in the UK?
A UK TIN number includes identifiers like UTR, NINo, CRN, VAT number, and PAYE reference for tax purposes.

2. What is your tax identification number in the UK?
Depends on context: NINo for personal tax, UTR for self-employed, CRN/UTR for companies, VAT number for VAT, or PAYE reference for employers.

3. where do i find my tin number uk?
Check HMRC letters, BRP (back), eVisa, payslips, Certificate of Incorporation, or Companies House register.

4. How to get tin number in the UK?
Register with HMRC (NINo, UTR, VAT, PAYE) or Companies House (CRN) based on your tax needs.
Starting a business? Our company formation services deliver CRN instantly.

5. Is a National Insurance Number the same as a Tax Identification Number in the UK?
No, NINo is one TIN for personal tax; others like UTR, CRN, VAT, or PAYE serve different purposes.

6. What is a tax registration number?
In the UK, tax registration numbers—such as the UTR, VAT number, and PAYE reference—are used to ensure compliance with HMRC requirements.

7. How to find my tax identification number uk?
Check BRP, eVisa, HMRC accounts, payslips, VAT certificates, or Companies House register.
8. What is the tax number UK?
Varies: NINo for individuals, UTR for self-employed, CRN/UTR for companies, VAT number for VAT, PAYE for employers.
Unclear? Our Accountancy services clarify tax numbers.

9. How do I find my tax ID number UK?
Use HMRC helplines (0300 200 3500), HMRC online account, BRP, eVisa, or Companies House records.

10. Can I use my NINo as my TIN internationally?
Sometimes, as a foreign tax identifying number UK, but confirm with the relevant country’s tax authority.
Need guidance? Our experts assists with international tax.

11. What if my TIN is incorrect?
Contact HMRC (0300 200 3500) or Companies House to verify and correct your TIN details promptly.
Facing issues? Our Accountancy services resolve TIN errors.

12. How to update my TIN details?
Update via HMRC online account for UTR, VAT, PAYE, or Companies House for CRN.
Need help? Our Accountancy services streamline updates.

13. Are TINs free?
Most TINs (NINo, UTR, VAT, PAYE) are free; CRN requires a Companies House incorporation fee (£12-£50).
Starting up? Our company formation services include CRN setup.

14. How long to get a TIN?
UTR: ~15 days; NINo: 4-6 weeks; CRN: instant; VAT: ~20 days; PAYE: ~15 days.
In a hurry? Our company formation services deliver CRN instantly.

15. What if I lose my TIN?
Use HMRC helplines (0300 200 3500), HMRC accounts, to retrieve your UK tax ID number.

Conclusion

UK TINs are vital for compliance and operations. Whether you need a UTR, NINo, or CRN, this guide ensures you’re equipped. Start with our company formation package for seamless TIN acquisition.

Resources and Support

• HMRC Self Assessment Helpline: 0300 200 3310
• HMRC National Insurance Helpline: 0300 200 3500
• HMRC VAT Helpline: 0300 200 3700
• HMRC Employer Helpline: 0300 200 3200
• Companies House Register
• Contact our expert support for TIN assistance.

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