If you employ people in the UK, you will quickly come across the term employer PAYE reference. It is one of those tax details that sounds more complicated than it is, but getting it wrong can cause confusion when setting up payroll, completing forms or dealing with HM Revenue & Customs (HMRC). The employer PAYE reference is essentially an identifier HMRC uses to identify an employer for PAYE purposes. It is issued when an employer registers for PAYE and is used across payroll-related records and services.

For a new company, understanding the difference between the PAYE reference, the Accounts Office reference and other business tax numbers is particularly important. They serve different purposes and should not be treated as interchangeable. This guide explains what an employer PAYE reference is, what it looks like, where to find it, when you need it and what to do if you cannot locate it.

What Is an Employer PAYE Reference?

An employer PAYE reference is a unique identifier HMRC assigns to an employer when they register for Pay As You Earn (PAYE). PAYE is HMRC's system for collecting Income Tax and National Insurance from employment. Employers generally operate PAYE through their payroll when paying employees. The PAYE reference allows HMRC and payroll systems to identify the correct employer record. It may also be described simply as:

• Employer PAYE reference
• PAYE reference
• Employer reference

HMRC's own guidance uses "employer PAYE reference" as the preferred term.

What does a PAYE reference look like?

A typical employer PAYE reference contains: Three numbers, followed by a forward slash, followed by letters and/or numbers. For example: 123/AB456, The first three digits identify the tax office, while the remaining characters identify the employer's PAYE record. HMRC's design guidance specifies this general format and uses 123/AB456 as its example. Your actual reference will be different.

Why Does an Employer PAYE Reference Matter?

The PAYE reference connects payroll information to the correct employer record at HMRC. When a company pays employees, it has obligations to report information about earnings and deductions. This includes PAYE Income Tax and National Insurance, as well as certain other deductions and employment-related information. The reference therefore becomes useful when:

• setting up payroll software;
• dealing with HMRC about PAYE;
• accessing PAYE Online;
• completing certain employee forms;
• checking employment or tax records;
• providing information to employees or advisers;
• identifying the correct PAYE scheme.

For example, an employee may be asked for their employer's PAYE reference when completing a tax-related application. It can also appear on employment documents such as a P60. The important point is that the reference identifies the employer's PAYE scheme; it is not the same thing as the company's Companies House registration number.

PAYE Reference vs Accounts Office Reference

This is one of the most common sources of confusion for new employers. When you register for PAYE, HMRC provides more than one important reference. The two most frequently confused are the employer PAYE reference and the Accounts Office reference. They are different numbers used for different purposes.

The Accounts Office reference is particularly important when paying your PAYE bill. HMRC says employers using alternative payment methods need to use their 13-character Accounts Office reference as the payment reference, without spaces. So, if your accountant asks for your PAYE reference, do not automatically send the Accounts Office reference.

Is the PAYE reference the same as the company registration number?

No. A limited company registered at Companies House receives a company registration number (CRN). HMRC separately assigns tax references when the company registers for different taxes. For example, a company might have:

• Companies House registration number;
• Corporation Tax UTR;
• employer PAYE reference;
• Accounts Office reference;
• VAT registration number, if VAT registered.

These numbers identify different records and should be kept securely in the company's administrative records. This distinction becomes especially important for founders running their own payroll. A mistake that seems minor—such as entering the company registration number where a PAYE reference is required—can result in an application or payroll process being rejected or linked to the wrong record.

Where Can You Find Your Employer PAYE Reference?

The first place to look is the correspondence HMRC sent when you registered as an employer. HMRC states that the employer PAYE reference is sent in the registration letter. You may also find the reference on payroll and employment documents.

1. Your HMRC PAYE registration letter

When you register as an employer, HMRC sends information about your PAYE scheme. Keep this letter with your company's tax records. It can contain both the employer PAYE reference and the Accounts Office reference, which is why it is worth retaining rather than relying on memory.

2. Employee P60s

The employer PAYE reference can appear on an employee's P60. HMRC's guidance specifically identifies the P60 as a place where an employer PAYE reference may be found.

3. Payroll software

If you use payroll software, the employer PAYE reference should normally be stored within the employer or payroll scheme settings. Check the payroll company's employer details rather than assuming the reference is the same as another company number.

4. Your HMRC records

Employers using PAYE Online can access information relating to their PAYE obligations. The service allows employers to check amounts owed, payment history, tax codes and notices, among other functions.

5. Your accountant or payroll provider

If an accountant, bookkeeper or payroll bureau registered your PAYE scheme on your behalf, they may have the original registration information. This is particularly common with newly incorporated companies that outsource payroll from the beginning.

How Do You Get an Employer PAYE Reference?

You do not normally create your own PAYE reference. You obtain it by registering as an employer with HMRC. You normally need to register when you start employing staff or use subcontractors for construction work. A limited company may also need to register if it is paying its directors, including a company with only one director.

HMRC says you must register before the first payday to get the employer PAYE reference. There is also a timing restriction: you cannot register more than two months before you start paying people. For most limited companies with one to nine directors, HMRC provides an online employer registration route.

What happens after registration?

Once registered, HMRC issues your employer PAYE information. If you register online, you are automatically enrolled for PAYE Online. HMRC then sends an activation code by post, which must be used within the stated activation period. This is worth planning for if your first payroll is approaching. Do not leave PAYE registration until the day before you intend to pay employees.

When Will a Company Need a PAYE Reference?

A company generally needs an employer PAYE reference once it operates a PAYE scheme. This can happen when a company starts paying:

• employees;
• directors;
• certain other workers whose payments must be processed through PAYE.

PAYE covers more than basic monthly salaries. Employer payroll reporting can also involve bonuses, tips, statutory payments, expenses and benefits, depending on the circumstances. A founder who has incorporated a company but has not yet started paying anyone does not necessarily need to register immediately simply because the company exists. The trigger is the employer's PAYE obligations, not incorporation itself.

What Is the PAYE Reference Used For?

Once you have a PAYE scheme, the reference becomes part of the company's payroll administration.

Payroll reporting

Employers operating PAYE must report employee payments and deductions to HMRC. For employers running their own payroll, the Full Payment Submission is generally submitted on or before payday. The PAYE scheme reference helps ensure those records are associated with the correct employer.

PAYE Online

PAYE Online allows employers to manage aspects of their PAYE obligations, including checking what they owe, reviewing payment history and accessing employee tax information and HMRC notices.

Employee documentation

Employees may encounter the employer PAYE reference on documents such as P60s. This is why employees sometimes ask their employer for the number.

Dealing with HMRC

When communicating with HMRC about payroll, having the correct PAYE reference available can make it easier to identify the appropriate PAYE scheme. This is particularly useful where a business has more than one PAYE scheme.

What If You Have Lost Your PAYE Reference?

Losing the original HMRC letter is not necessarily a serious problem. Start by checking:

1. previous HMRC correspondence;
2. P60s and relevant payroll documents;
3. payroll software;
4. your accountant's records;
5. your HMRC online services.

Be careful when searching company records because several numbers may look similar. If you still cannot establish the correct reference, contact HMRC rather than guessing. Do not substitute your company registration number, Corporation Tax UTR or Accounts Office reference simply because it is the only tax number you can find. The wrong reference can cause information to be associated with the wrong record or create unnecessary delays.

What If You Have the PAYE Reference but Not the Accounts Office Reference?

This is a different problem. The two references serve different purposes. In particular, the Accounts Office reference is used for making PAYE payments to HMRC. HMRC states that this is a 13-character reference and should be entered without spaces when required as a payment reference.

If you are preparing to make a PAYE payment and cannot find the Accounts Office reference, locate your PAYE registration correspondence or check your HMRC records rather than using the employer PAYE reference. This distinction can save a new business from an avoidable payment problem.

PAYE References for Companies With Multiple Payroll Schemes

Larger or more complex businesses can have more than one PAYE scheme. This means you should not assume that a company's entire payroll necessarily operates under one reference. For example, a group structure could have separate payroll arrangements for different entities or circumstances.

The practical lesson is simple: identify the specific PAYE scheme involved before entering a reference on a form or payroll system. For growing businesses, maintaining a central tax-reference register can be surprisingly useful. Keep the company number, Corporation Tax UTR, VAT number, PAYE reference and Accounts Office reference together, but clearly label each one. That small administrative habit prevents a surprising number of avoidable mistakes.

Employer PAYE Reference: Common Mistakes to Avoid

Confusing it with the company number

Companies House and HMRC operate separate systems. Your company registration number is not your PAYE reference.

Using the Accounts Office reference instead

Both may appear in the same HMRC correspondence, but they have different purposes.

Registering too late

HMRC says you must register before the first payday.

Guessing a missing reference

Do not reconstruct a PAYE reference from the company's name, registration number or other tax information.

Assuming incorporation automatically creates a PAYE scheme

Company formation and PAYE registration are separate processes.

Forgetting payroll deadlines

Once you employ people, the PAYE reference is only one part of the compliance picture. Employers also have ongoing reporting and payment obligations. PAYE bills are generally due by the 22nd of the following tax month when paid electronically, or by the 22nd after the quarter for employers on quarterly payment arrangements.

A Practical PAYE Reference Checklist for New Companies

If you are setting up payroll for the first time, use this checklist:

Before employing people

• Confirm whether you need to register as an employer.
• Register with HMRC within the permitted timeframe.
• Obtain and securely store your employer PAYE reference.
• Record your Accounts Office reference separately.
• Set up payroll software or appoint a payroll provider.
• Enrol for PAYE Online where required.
• Understand your reporting and payment deadlines.

After registration

• Keep HMRC correspondence.
• Make sure payroll software contains the correct PAYE reference.
• Check that employee documentation is accurate.
• Keep PAYE and other tax references clearly labelled.
• Review HMRC notices and payroll records regularly.

For founders using a UK company formation and management platform such as IncorpUK, it is useful to treat PAYE information as part of the company's wider compliance records rather than as an isolated number.

Frequently Asked Questions

Is a PAYE reference the same as a PAYE number?

The terms are sometimes used interchangeably, but employer PAYE reference is the clearer term. HMRC's own design guidance recommends this terminology.

How many digits is an employer PAYE reference?

It generally begins with a three-digit tax office number, followed by a forward slash and an employer reference. For example, 123/AB456. The employer reference portion can contain letters and numbers.

Where can I find my employer PAYE reference?

Check your HMRC PAYE registration letter, relevant payroll records and P60s. You can also check your HMRC PAYE Online records or ask your accountant or payroll provider.

Does every limited company have a PAYE reference?

No. A limited company does not automatically receive a PAYE reference simply because it is incorporated. The company needs to register as an employer when it has PAYE obligations.

Does a company director need a PAYE reference?

A director's pay may need to be processed through PAYE. HMRC specifically states that a limited company with one to nine directors can register online and that employers should register before the first payday.

Is the PAYE reference the same as the Accounts Office reference?

No. They are separate identifiers. The Accounts Office reference is used when making PAYE payments to HMRC, while the employer PAYE reference identifies the employer's PAYE record.

Is the PAYE reference the same as the Corporation Tax UTR?

No. The Corporation Tax UTR identifies the company for Corporation Tax purposes. The employer PAYE reference identifies its PAYE scheme.

Can an employee find their employer's PAYE reference?

Often, yes. The reference may appear on employment documents such as a P60.

Can I choose my own PAYE reference?

Generally, no. HMRC assigns the employer reference when the PAYE scheme is created. HMRC's internal guidance states that new employer references are system-generated, subject to certain circumstances.

Conclusion

The employer PAYE reference is a simple but important piece of information for any UK business operating payroll. It identifies the employer's PAYE record with HMRC and appears in payroll administration, employee documentation and HMRC services. The biggest mistake is confusing it with another business identifier. Your Companies House number, Corporation Tax UTR, employer PAYE reference and Accounts Office reference are not interchangeable.

For a new employer, the sensible approach is to register with HMRC before the first payday, keep the PAYE registration letter securely, record each tax reference separately and make sure your payroll provider or software has the correct details. Once those basics are in place, the PAYE reference becomes what it should be: a straightforward identifier that helps keep your company's payroll connected to the right HMRC record.