HMRC, or Her Majesty's Revenue and Customs, is the United Kingdom's tax authority responsible for administering and collecting taxes, enforcing tax compliance, and overseeing statutory payments including National Insurance contributions. For employers, HMRC manages PAYE (Pay As You Earn) systems, ensuring correct income tax and National Insurance deductions from employee wages, and regulates statutory sick pay, maternity pay, and pension auto-enrolment compliance.
HMRC requires employers to submit Real Time Information (RTI) reports each pay period, detailing employee earnings and deductions. For example, when a company hires a new employee earning £35,000 annually, the employer must register them with HMRC, deduct appropriate income tax and National Insurance through PAYE, and submit Full Payment Submissions (FPS) digitally on or before each payday. HMRC also conducts compliance checks and issues penalties for late or incorrect submissions, making accurate payroll management essential for UK employers.
HMRC compliance is critical for UK employers to avoid substantial penalties, maintain legal standing, and ensure employee trust. Non-compliance can result in fines ranging from £100 to £400 per month for late PAYE submissions, plus interest on unpaid taxes. According to HMRC's 2022-23 annual report, the department collected over £731 billion in tax revenue, with employment taxes representing a significant portion. Accurate HMRC reporting protects businesses from audits, reputational damage, and legal consequences while ensuring employees receive correct statutory entitlements and tax credits, directly impacting workforce satisfaction and retention.
- Register as an employer: Before hiring your first employee, register with HMRC for PAYE and obtain an employer PAYE reference number. This enables you to report payroll information and make tax payments correctly from day one.
- Implement compliant payroll systems: Use HMRC-recognized payroll software that calculates income tax, National Insurance, and statutory payments automatically, ensuring accurate deductions aligned with current tax codes and thresholds for each employee.
- Submit Real Time Information: File Full Payment Submissions (FPS) to HMRC on or before each payday, detailing gross pay, deductions, and employee details. Submit Employer Payment Summaries (EPS) when claiming statutory payment recoveries or reporting nil payments.
- Maintain accurate records: Keep payroll records for at least three years, including P60s, P45s, and payment documentation. Conduct regular internal audits to ensure ongoing compliance and prepare for potential HMRC inspections or queries.
Key Statistics & Benchmarks
- £731 billion collected in 2022-23 — HMRC's total tax revenue demonstrating its fiscal importance.
- £100-£400 monthly penalties — fines imposed for late PAYE submissions to HMRC.
- Real Time Information mandatory since 2013 — all UK employers must report payroll digitally each pay period.
- 3-year record retention required — minimum period employers must maintain HMRC payroll documentation.
Common Mistakes to Avoid
- Late RTI submissions: Submit FPS on or before payday, not after, to avoid automatic penalties and compliance flags from HMRC.
- Incorrect tax codes: Verify employee tax codes with HMRC notices rather than assuming; incorrect codes cause under or over-deduction issues.
- Missing EPS filings: Always submit Employer Payment Summaries when claiming statutory payment recoveries or reporting no payment due to avoid payment demands.
Frequently Asked Questions
What is HMRC and what does it do?
HMRC (Her Majesty's Revenue and Customs) is the UK's tax authority responsible for collecting income tax, National Insurance, VAT, and corporation tax. For employers, HMRC administers the PAYE system, ensuring correct tax deductions from employee wages, and oversees compliance with statutory payment obligations including sick pay, maternity leave, and pension auto-enrolment. HMRC enforces tax law through audits, investigations, and penalties for non-compliance.
How do I register my business with HMRC as an employer?
Register with HMRC as an employer online through the Government Gateway before your first payday. You'll need your business details, the date you'll first pay employees, and information about whether you'll provide expenses or benefits. HMRC will issue an employer PAYE reference number and Accounts Office reference within five working days, which you'll use for all payroll submissions and tax payments throughout your business operations.
What is the difference between HMRC and PAYE?
HMRC is the government department that administers UK tax collection, while PAYE (Pay As You Earn) is the system HMRC uses to collect income tax and National Insurance from employees through their employers. PAYE is one of many tax mechanisms HMRC manages, alongside VAT, corporation tax, and self-assessment. Employers operate PAYE on behalf of HMRC, deducting taxes from wages and remitting them directly to the tax authority.
How often do I need to submit payroll information to HMRC?
You must submit a Full Payment Submission (FPS) to HMRC on or before every payday through Real Time Information (RTI) reporting, whether you pay employees weekly, fortnightly, or monthly. If you're claiming statutory payment recoveries or have no payments to report in a tax month, submit an Employer Payment Summary (EPS) by the 19th of the following month. Annual reporting via P60s is also required by May 31st each year.