PAYE Registration for New Employers

When a company or individual starts employing staff in England and Wales, one of the first statutory obligations is to set up a Pay As You Earn (PAYE) scheme with HM Revenue & Customs (HMRC). PAYE is the UK system used to collect Income Tax and National Insurance contributions from employee earnings. Registering as an employer ensures that tax and National Insurance deductions are reported and paid correctly on behalf of employees. Failing to register in time can expose a business to compliance issues, penalties, and enforcement action. This article explains who must register, when that obligation arises, the steps involved in setting up PAYE, and key considerations for new employers.

Who Must Register as a New Employer?

Any business or individual that pays employees through payroll may need to register as an employer with HMRC when:

• They pay an employee who earns above the relevant earnings threshold (typically £96 per week for the 2025/26 tax year).
• They provide benefits or expenses to employees as part of their remuneration.
• They employ someone who already has another job or receives a pension.

For some workers classified as self‑employed or structured as personal services workers, PAYE may not apply. In such cases, the business may not need to register a PAYE scheme, but accurate classification is essential to avoid tax disputes or liabilities.

Even if a company's only employee is a director, the company must normally register for PAYE before any pay is processed.

When Must PAYE Registration Be Done?

A new employer must register for PAYE before the first payday. HMRC advises that registration should be completed with sufficient lead time, because processing and allocation of reference numbers can take up to 15 working days or more.

Employers can register for PAYE no more than two months before the date of the first planned payroll run. Attempting to register earlier may result in processing delays.

If the PAYE reference has not arrived before the first pay day, employers can still run payroll and submit a full payment submission (FPS) to HMRC once they receive the reference, provided the FPS is submitted as soon as possible.

Why PAYE Registration Is Important

A PAYE scheme enables employers to:

• Calculate and deduct income tax and National Insurance from employee pay.
• Report payroll information in real time (RTI) to HMRC every time employees are paid.
• Issue payslips that detail gross pay, deductions and net pay.
• Submit employer payment information and pay liabilities to HMRC on time.

Operating payroll without PAYE registration where it is required can lead to late filing penalties, interest on unpaid liabilities, and administrative compliance notices. Employers should set up their scheme promptly to ensure tax compliance and protect their workforce's entitlements.

How to Register for PAYE

1. Gather Required Information

Before starting, the employer should have:

• The company name and registered address.
• The date on which they will start paying employees.
• Details of the business structure (limited company, sole trader, partnership).
• A contact name and details for correspondence.
• National Insurance numbers of directors or partners where requested, particularly for sole traders operating as employers.

2. Use the Online Registration Tool

Most employers can register online via HMRC's official registration service:

1. Visit the HMRC register as an employer page.
2. Complete the required online form, providing business and contact details, expected payroll start date, and date of first pay.
3. Submit the application to HMRC.

HMRC will then process the registration and issue:

• An Employer PAYE Reference Number, identifying the PAYE scheme when reporting payroll.
• An Accounts Office Reference Number, used when making PAYE payments to HMRC.

3. Activation and Online Access

After registration, employers may need to enrol for PAYE Online if they did not include this at the point of registering. HMRC sends an activation code by post, usually within about ten days, which must be activated online to access the service.

Employer Record and HMRC Correspondence

Once registered, HMRC creates an employer record in its systems. This record determines what forms and reminders HMRC will send an employer, which may include tax code notices and payment schedules. Employers should notify HMRC promptly of any changes in company details to keep the record accurate.

Payroll Software and Reporting

After registering and receiving reference numbers, employers must set up payroll software or use tools such as Basic PAYE Tools to:

• Generate payroll calculations and payslips.
• Send Real Time Information (RTI) submissions to HMRC with each pay period.
• Deal with starter and leaver forms, student loan deductions, and National Insurance calculations.

Choosing reliable payroll software helps ensure that the employer meets statutory filing deadlines and correctly reports employee earnings, tax and National Insurance.

Practical Considerations and Timing Risks

Allow for Processing Delays

HMRC processing of PAYE registrations and issuance of reference numbers can take several weeks. Employers should register well in advance of their first payroll date to avoid rushed reporting or errors.

Paying Before Reference Arrives

If payroll must run before the PAYE reference arrives, employers should:

1. Run payroll and prepare records.
2. Store the full payment submission.
3. Send a late FPS as soon as the PAYE scheme and reference are issued by HMRC.

This approach helps demonstrate compliance even if formal registration processing lags.

Identify Worker Status Correctly

Not all workers are subject to PAYE. Employers should determine whether an individual is an employee or self‑employed contractor before registering or operating PAYE. Misclassification can lead to additional tax liabilities and employer penalties.

Common Questions About PAYE Registration

Do All Employers Have to Register?

No. If a business pays workers below statutory earnings thresholds and they do not have tax or National Insurance liabilities, it might not need to register immediately. However, record‑keeping and employment law obligations still apply.

Can You Register Too Early?

Yes. Employers cannot register for PAYE more than two months before the expected first payroll date. Planning within this window helps HMRC process registrations without needless delays.

What Happens If You Don't Register?

Failure to register on time exposes a business to potential penalties and enforcement action by HMRC. It may also result in incorrect tax reporting and liabilities for unpaid Income Tax and National Insurance. Prompt registration protects both employer and employee interests.

Summary

For anyone becoming an employer in the UK, setting up a PAYE scheme with HMRC is an essential step in fulfilling legal responsibilities for income tax and National Insurance deductions. Registration must be completed before the first payday and can be done online up to two months in advance. HMRC issues an Employer PAYE reference and an Accounts Office reference that are used for payroll reporting and payments. Employers should allow adequate time for processing, choose appropriate payroll tools for reporting, and ensure workers are correctly classified. Accurate and timely PAYE registration and reporting help a business meet statutory duties and avoid penalties, while promoting transparency and compliance in employment relations.