How to Register for PAYE in the UK: A 2026 Step by Step Guide

Taking on your first employee, paying yourself as a company director, or offering benefits can all trigger Pay As You Earn (PAYE) obligations. Missing the registration window risks leaving your business unable to run payroll or issue legal wages when payday arrives.

This comprehensive guide breaks down when PAYE registration is required, how to register step-by-step with HMRC, how to avoid common filing traps, and how to maintain complete payroll compliance once your system goes live.

What is PAYE and When Do You Need to Register?

Pay As You Earn (PAYE) is the formal system HMRC uses to collect Income Tax and National Insurance contributions (NICs) directly from employment income. As an employer, you act as an official tax collector for the government, deducting tax and contributions before net pay reaches your workers' bank accounts.

You must register as an employer and operate a formal PAYE scheme if you employ staff or pay company directors and any of the following conditions apply:

• An employee or director earns £123 or more a week (the Lower Earnings Limit).

• You provide expenses or taxable employee benefits (such as company cars or healthcare).

• An employee has another job or receives a workplace or state pension.

• Statutory deductions for tax or National Insurance are triggered on earnings.

This rule applies universally across the UK. It affects limited companies with a single director just as strictly as it affects a growing business hiring ten team members at once.

PAYE Obligations for Company Directors

Setting up PAYE for directors is a fundamental early step for most limited companies. Directors often draw a tax-efficient mixture of salary and dividends. Because a limited company is a distinct legal entity from its owners, paying a director a salary is treated as employment income.

While director payroll features specialized National Insurance calculation methods (such as the cumulative annual baseline), the company must still process these payments through an approved PAYE scheme and report them to HMRC via Real Time Information (RTI).

Situations Where PAYE May Not Be Required

Registration is generally not required if all staff earn below the primary thresholds, have no secondary employment, receive zero taxable benefits, and do not draw pension income.

However, even if you fall under these thresholds, maintaining accurate internal payroll records remains vital. If an employee’s pay increases later in the tax year, or if their tax status changes, a PAYE scheme must be activated immediately.

Step 1: Confirm Who Is Employed and Determine Pay Structures

Before initiating HMRC registration, create a complete inventory of every person who will receive payments from the business.

Worker Classification Checklist

• Permanent Full-Time and Part-Time Staff: Regular employees with contract hours.

• Company Directors: Executive officers receiving director compensation or salaries.

• Casual Workers and Apprentices: Temporary staff, interns, or vocational trainees paid directly by the business.

• Agency Workers and Subcontractors: Verify whether individuals are genuine self-employed contractors (under CIS or direct invoicing) or fall under off-payroll working (IR35) rules requiring PAYE deductions.

For every individual listed, document their legal full name, home address, National Insurance number, expected gross pay, pay frequency (weekly, bi-weekly, or monthly), planned start date, and first scheduled payday.

Having these figures established upfront ensures your initial HMRC application aligns accurately with your real-world trading timeline.

Step 2: Choose How Your Business Will Run Payroll

Decide on your operational approach before applying to HMRC, as your chosen model will dictate how software and login access are set up.

Option	Best Suited For	Key Operational Responsibilities
In-House Payroll Software	Small businesses with straightforward pay structures whose managers are comfortable handling HMRC tax codes and filing deadlines.	Selecting HMRC-recognized, RTI-compliant software to calculate statutory pay, generate digital payslips, and send Full Payment Submissions (FPS) and Employer Payment Summaries (EPS) on or before each payday.
Outsourced Accountant / Payroll Bureau	Employers seeking full compliance protection, companies with complex director pay, or businesses offering varied employee benefits and workplace pensions.	Handling employer registration, configuring HMRC credentials, executing payroll runs, managing pension auto-enrolment compliance, and providing exact month-end liability totals.

Deciding who will run payroll affects every step that follows.

Step 3: Register as an Employer with HMRC Before Your First Payday

You must apply to HMRC to open an employer PAYE scheme before your first official payday. Attempting to process payments without active registration numbers leads to filing delays and potential HMRC compliance queries.

Required Registration Information

When completing the online application via GOV.UK, you will need to supply:

• Official business name and trading name (if different).

  
  

• Registered business address and primary contact details.

  
  

• Company Registration Number (CRN) and Unique Taxpayer Reference (UTR).

• Full personal details of all active directors or sole proprietors.

• Date of the first employment and the estimated date of the first payday.

• Expected total number of employees in the current tax year.

Application Timeline and Received Credentials

Allow 1 to 5 working days (and up to 15 working days during peak periods or when manual verification is needed) for HMRC to process the registration and issue your official credentials.

Once approved, HMRC will issue three critical setup pieces:

1. Employer PAYE Reference: (e.g., 123/AB12345) Used by payroll software to identify your company.

   
   

2. Accounts Office Reference: (e.g., 123PQ00123456) Used when sending monthly tax payments to HMRC.

   
   

3. Activation Code for PAYE Online Services: Enables digital management of tax code changes and official HMRC notices.

   
   

Step 4: Set Up Complete Employee Payroll Records

Once your employer references arrive, build individual master records inside your payroll system for every worker.

Mandatory Employee Data Points

• Full legal name, date of birth, gender, and residential address.

• National Insurance Number (NINo).

• Official Start Date.

• Agreed gross pay rates and payment frequency.

• Tax Code details (extracted from a formal P45 provided by a previous employer or a completed HMRC Starter Checklist).

• Student Loan or Postgraduate Loan repayment plan types.

• Primary bank account details for direct BACS payments.

For new employees without a P45, the HMRC Starter Checklist assigns temporary starter tax codes (such as 1257L on a Month 1/Week 1 basis) to prevent over-taxation while HMRC syncs their record.

Step 5: Execute Your First Payroll Run and File RTI Reports

Running payroll involves processing gross pay through tax calculation rules to generate net earnings, employee payslips, and mandatory statutory reporting.

Real Time Information (RTI) Requirements

Under Real Time Information (RTI), employers must report pay details electronically to HMRC on or before the date wages are released.

• Full Payment Submission (FPS): Sent on or before every payday. It detail gross pay, Income Tax deductions, Employee and Employer NICs, student loan deductions, and net pay for every individual worker.

• Employer Payment Summary (EPS): Submitted monthly (by the 19th) if you need to reclaim statutory pay (such as maternity or paternity pay), claim the Employment Allowance, or report zero payments made during a full tax month.

• Payslip Issuance: You are legally required to provide every worker with an itemized payslip on or before payday, clearly displaying gross earnings, itemized deductions, and net pay received.

Automated payroll systems ensure timely FPS submissions and compliance with UK RTI regulations

Step 6: Master Mandatory Deductions and Employer Overheads

Operating payroll means balancing two distinct types of figures: employee deductions (taken from their wages) and direct employer overheads (paid by the company on top of wages).

1. Income Tax

Deducted directly from the employee’s gross earnings based on their assigned tax code and tax band thresholds. HMRC updates employee tax codes periodically via electronic P9 notices, which your payroll system must apply immediately.

2. Employee National Insurance (Primary NICs)

Deducted from employee gross earnings that exceed the primary threshold. These contributions build the employee's entitlement to state benefits and the UK State Pension.

3. Employer National Insurance (Secondary NICs)

A direct operational overhead for the business. Employer NICs are calculated on employee earnings above the secondary threshold and are added to your total monthly HMRC liability.

Budgeting Note: When hiring a staff member on a £30,000 annual salary, the total business cost will exceed £30,000 once Employer NICs and mandatory pension contributions are factored in.

4. Pension Auto-Enrolment

Under UK workplace pension laws, all eligible employers must assess their workforce every pay period. Eligible jobholders (generally aged 22 to State Pension age earning over £10,000 per year) must be automatically enrolled into an approved workplace pension scheme.

Employers must make mandatory minimum pension contributions alongside employee contributions, submit data to the pension provider every payday, and complete a formal Declaration of Compliance with The Pensions Regulator.

Step 7: Remit Monthly Liabilities to HMRC On Time

All Income Tax, Employee NICs, Employer NICs, and student loan deductions collected during a tax month (which runs from the 6th of one month to the 5th of the next) must be remitted directly to HMRC.

HMRC Payment Deadlines and Methods

Payment Method	Statutory Deadline	Key Action Item
Electronic Transfer (FPS, Direct Debit, Online Banking)	22nd of the month following the tax month	Ensure cleared funds reach HMRC's account by midnight on the 22nd.
Cheque by Post	19th of the month following the tax month	Post early to guarantee physical delivery to the Accounts Office by the 19th.

Payment Reference Rule: Always quote your exact 13-character Accounts Office Reference on bank transfers. Omitting or misinterpreting this reference can cause HMRC systems to misallocate your payment, leading to false automated warning notices or late payment interest charges.

(Note: Small employers with total average monthly liabilities below £1,500 may request permission from HMRC to pay quarterly rather than monthly.)

Step 8: Maintain Statutory Record-Keeping Standards

HMRC requires employers to maintain complete, unedited payroll records for at least 3 years from the end of the tax year they relate to.

Essential Audit Trail Documents

• Detailed summaries of gross pay, tax, and NIC deductions for every worker.

• Copies of all FPS and EPS submission receipts generated by your payroll software.

• Employee leave records, sickness logs, and statutory pay calculations (SSP, SMP, SPP).

• HMRC tax code updates (P6/P9 notices) and Starter Checklists.

• Monthly HMRC payment confirmation receipts and bank statements.

• Pension contribution logs and compliance records.

Maintaining secure, digital cloud backups of these records protects your business against compliance inquiries or formal HMRC employer compliance audits.

Step 9: Complete End-of-Year Payroll Responsibilities

The UK tax year ends on 5 April. Navigating the year-end process smoothly requires completing several mandatory reporting tasks:

1. Submit Final RTI Filing: Send your final FPS or EPS for the tax year by 19 April, explicitly marking it as the final submission for the year.

   
   

2. Issue P60 Statements: Provide a formal P60 annual summary to every employee working for you on 5 April by no later than 31 May.

   
   

3. Report Benefits and Expenses (P11D): Submit P11D and P11D(b) forms by 6 July to report taxable employee benefits (or ensure benefits have been properly payrolled during the year).

   
   

4. Update Tax Codes: Apply updated standard tax codes across your payroll software for the start of the new tax year on 6 April.

   
   

Keeping payroll records organised makes month-end and year-end easier.

Common Setup Pitfalls and How to Avoid Them

• Failing to Account for Processing Time: Applying for PAYE on the exact day salaries are due leaves you unable to file RTI reports legally. Always start registration at least two weeks before your initial payment date.

• Overlooking Employer Overheads: Forgetting to budget for Employer National Insurance (13.8% above thresholds) and employer pension contributions can create unexpected cash flow bottlenecks.

• Ignoring Pension Auto-Enrolment: Pension duties apply from the exact day your first worker starts. Failing to assess staff or complete your Declaration of Compliance with The Pensions Regulator carries heavy statutory fines.

• Submitting Late RTI Reports: Sending an FPS after money has transferred to employee accounts triggers automated late-filing penalties from HMRC. Always align payroll processing with actual banking release dates.

Quick Employer PAYE Checklist

Use this checklist to track your progress from setup to live payroll execution:

• [ ] Identify all directors, full-time staff, and casual workers to be paid.

• [ ] Select an RTI-compliant payroll software or hire an accounting partner.

• [ ] Register as an employer online with HMRC via GOV.UK.

• [ ] Store your Employer PAYE Reference and Accounts Office Reference securely.

• [ ] Collect P45s or complete Starter Checklists for all onboarding workers.

• [ ] Set up pension auto-enrolment with an approved workplace pension provider.

• [ ] Calculate gross pay, statutory deductions, and net earnings.

• [ ] File your Full Payment Submission (FPS) with HMRC on or before payday.

• [ ] Provide itemized payslips to all employees on or before payday.

• [ ] Remit monthly tax liabilities to HMRC by the 22nd electronically.

• [ ] Archive all payroll files and submission confirmations in secure records.

 Need Help Setting Up PAYE for Your Business?

Setting up payroll for the first time can feel overwhelming from managing HMRC deadlines to navigating pension auto-enrolment and director pay rules.

At Red Parrot Accounting Ltd, we take the hassle out of payroll. Whether you need help registering with HMRC, configuring RTI software, or fully outsourcing your monthly payroll processing, our tax experts are here to ensure complete compliance from day one.

Contact Red Parrot Accounting Ltd Today  to get your PAYE scheme running smoothly without the stress.

Disclaimer: This guide is provided for general informational purposes only and does not constitute formal legal, accounting, or tax advice. Tax thresholds, rules, and compliance dates change frequently. For guidance tailored to your specific corporate structure, consult directly with a qualified professional at Red Parrot Accounting Ltd.