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UK Payroll Compliance Guide – RTI, HMRC Deadlines and Employment Law in One Place
Payroll compliance is more than paying employees correctly. Every payroll run involves meeting HMRC reporting requirements, calculating taxes accurately, managing workplace pensions, complying with employment legislation, and maintaining records that can withstand an audit. For many UK businesses, keeping up with changing regulations while processing payroll each pay period can be challenging.
Without the right tools, staying compliant can be difficult. Growing UK businesses frequently face common compliance challenges, including:
Missing strict HMRC filing deadlines
Manual calculation errors and spreadsheet-based processes
Incorrect employee tax codes or pension enrolment mistakes
Inconsistent payroll records and difficulty tracking statutory payments
Time-consuming manual reconciliation with accounting software
Modern payroll software eliminates these manual tasks, reducing costly errors while keeping your process audit-ready. This guide covers everything you need to know to maintain a fully compliant UK payroll process.
UK Payroll Compliance Guide
Payroll compliance means meeting every legal obligation when paying your team including calculating PAYE and National Insurance (NI) accurately, submitting Real Time Information (RTI) to HMRC, managing workplace pensions, issuing payslips, and keeping audit-ready records. Keeping up with these requirements protects your business from HMRC penalties, interest charges, and costly administrative errors.
1. Registering as an Employer
Before running your first payroll, register with HMRC to obtain your essential credentials:
PAYE Reference Number: Identifies your business for tax reporting.
Accounts Office Reference Number: Required for making payments to HMRC.
Registration is generally required before your first payday if staff earn above the Lower Earnings Limit (£123/week) or receive employee benefits.
2. Calculating PAYE Deductions
Each pay run, you must calculate gross pay, net pay, and all applicable statutory deductions:
Income Tax and Employee NI
Employer NI contributions
Student and Postgraduate Loan repayments
Pension contributions
3. Real Time Information (RTI) Submissions
Rather than reporting annually, send your payroll data to HMRC every payday using two main reports:
Full Payment Submission (FPS): Submitted on or before payday to report individual earnings, tax, NI, and pension deductions.
Employer Payment Summary (EPS): Submitted as needed to reclaim statutory pay, claim the Apprenticeship Levy allowance, or report periods with no employee payments.
4. HMRC Deadlines
Stay on schedule to avoid automatic late-filing penalties:
Every Payday: Submit the FPS and pay your employees.
Monthly (by the 22nd): Pay accrued PAYE, Employee NI, and Employer NI to HMRC via electronic transfer.
Year-End (by May 31): Issue P60 summaries to all active employees.
5. Employment Law and Statutory Payment Obligations
UK payroll management must align with broader employment legislation. Beyond basic wage calculations, employers are legally required to manage statutory leaves, minimum wage standards, and itemised reporting across five key areas:
Statutory Leave & Pay: Payroll must accurately calculate, track, and report statutory pay for eligible employees during periods of leave. This includes:
Statutory Sick Pay (SSP): Paid to employees who are ill for 4 or more consecutive days.
Statutory Maternity / Paternity / Adoption Pay (SMP / SPP / SAP): Parental allowances calculated based on average weekly earnings.
Shared Parental Pay (ShPP): Flexible leave and pay shared between parents in the child’s first year.
National Minimum & Living Wage: All employee hourly rates must meet or exceed statutory requirements based on age and apprenticeship status.
Holiday Pay: Paid annual leave entitlement must be calculated accurately based on working patterns and statutory rules, including variable hours or overtime.
Payslips: Employers must issue payslips on or before payday detailing gross earnings, itemised deductions (tax, NI, pension, student loans), and net pay, alongside working hours for hourly-paid staff.
Statutory Records: Employers must maintain complete leave and pay records for at least three years to support HMRC compliance and audit requirements.
Best Practices for Staying Compliant
Building a reliable payroll process requires consistency.
Some practical best practices include
Process payroll using a standard checklist: Use the same workflow every pay period to reduce errors and ensure every compliance step is completed.
Keep employee information up to date: Changes to tax codes, addresses, pension status, or employment details should be reflected before each payroll run.
Submit RTI on time: Late submissions can lead to unnecessary penalties and additional administrative work.
Review payroll reports regularly: Regularly reviewing payroll summaries helps identify discrepancies before they become compliance issues.
Maintain organised payroll records: Keeping payroll documents securely stored simplifies audits and employee queries.
Integrate payroll with accounting: Connecting payroll and accounting reduces manual journal entries while improving financial accuracy and month-end reporting.
How Zoho Payroll helps UK businesses stay compliant
Zoho Payroll is designed to simplify payroll compliance for UK businesses by bringing payroll processing, statutory calculations, reporting, and employee self-service into one platform.
With Zoho Payroll, businesses can:
i) Process payroll accurately every pay period
ii) Generate and submit RTI reports
iii) Calculate PAYE and National Insurance automatically
iv) Manage workplace pension contributions
v) Handle statutory payments
vi) Generate compliant payslips
vii) Maintain organised payroll records
viii) Integrate payroll with Zoho Books for automated payroll accounting
By automating repetitive payroll tasks, businesses spend less time managing compliance and more time focusing on growth.
Building a Compliant Payroll Process
Payroll compliance is an essential part of running a successful business in the UK. From RTI submissions and HMRC deadlines to workplace pensions and employment law, every payroll cycle requires careful attention to statutory obligations.
The right payroll software removes much of the complexity by automating calculations, simplifying reporting, maintaining accurate records, and helping employers stay ahead of changing requirements.
Whether you're hiring your first employee or managing a growing workforce, establishing a compliant payroll process today helps protect your business, supports your employees, and creates a strong foundation for future growth.
Experience Zoho Payroll
Start your free trial today and experience a smarter way to manage payroll compliance in the UK.