Operating a payroll in the United Kingdom is governed by the Income Tax (Pay As You Earn) Regulations 2003 (SI 2003/2682) made under Section 684 of the Income Tax (Earnings and Pensions) Act 2003 (ITEPA 2003). Employers act as unpaid statutory tax collectors, calculating and deducting Income Tax and Class 1 National Insurance Contributions (NIC) at source.
Compliance requires mastering the Real Time Information (RTI) digital reporting rules alongside the mandatory lifecycle forms issued to workers: Form P45, Form P60, and Form P11D.
Real Time Information (RTI): FPS vs EPS
Since the enactment of RTI, periodic annual reporting has been replaced by live digital data transmissions for every payroll event:
1. Full Payment Submission (FPS)
Under Regulation 67B of SI 2003/2682, an employer must deliver an FPS to HMRC on or before the day wages are paid:
- Contains gross pay, tax code, Income Tax deducted, employee NICs, employer NICs, and student loan deductions for every worker on the payroll.
- Strict Compliance: Generating bank payments on Friday and submitting the FPS on Monday violates statutory regulations and triggers automated penalty notices under Schedule 55 to the Finance Act 2009.
2. Employer Payment Summary (EPS)
The EPS is a secondary monthly return submitted by the 19th of the following calendar month:
- Used to claim statutory reductions to your HMRC bill:
- Employment Allowance: Up to £5,000 (increasing in future statutory budgets) of employer Class 1 NIC relief for eligible businesses.
- Statutory Payments Reclaim: Reclaiming statutory maternity, paternity, adoption, or shared parental pay.
- CIS Deductions Suffered: Limited company subcontractors report CIS tax withheld by main contractors to offset against their PAYE liability.
- Nil Payment Declarations: Reporting months where no employees were paid.
The Statutory Employee Compliance Forms
Employers are legally obligated to issue standardized statutory documents to employees at defined milestones:
| Statutory Form | Regulatory Reference | Purpose & Trigger Event | Statutory Deadline |
|---|---|---|---|
| Form P45 | SI 2003/2682, Reg 36 | Details of employee leaving; certificates tax code, cumulative pay, and tax deducted | Provided to employee without delay upon termination |
| Form P60 | SI 2003/2682, Reg 67 | End of Year Certificate for all staff employed on 5 April | Issued to employees by 31 May |
| Form P11D | SI 2003/2682, Reg 85 | Statutory return of Benefits in Kind & Expenses provided to staff | Submitted to HMRC & copy to staff by 6 July |
| Form P11D(b) | SI 2003/2682, Reg 85 | Return of Employer Class 1A National Insurance on benefits | Submitted to HMRC by 6 July; payment due 22 July |
Benefits in Kind: Form P11D & Class 1A NIC
Under Part 3 of ITEPA 2003, non-cash perks provided to employees or directors are subject to income tax and employer National Insurance:
- Company Cars & Fuel: Taxed on the car's list price multiplied by a percentage based on CO2 emissions (electric vehicles enjoy preferential low Benefit in Kind bands).
- Private Medical Insurance: Taxed on the exact gross premium paid by the company.
- Beneficial Loans: Under Section 175 ITEPA 2003, loans to employees or directors (over £10,000) at interest rates below the official rate are taxed on the interest savings.
Employer Class 1A National Insurance
Employers must pay statutory Class 1A NIC on the cash-equivalent value of all reportable benefits declared on Form P11D(b). Cleared funds must reach HMRC by 22 July (if paying electronically) or 19 July (by post).
The Payrolling Benefits Alternative: Employers can register with HMRC before the start of the tax year to 'payroll' benefits. This taxes perks through the regular monthly FPS, eliminating the need to file individual P11Ds.
Late Filing Penalties for Employers
Late FPS and EPS filings incur monthly statutory penalties under Schedule 55 FA 2009 based on the size of the payroll:
- 1 to 9 employees: £100 per late month.
- 10 to 49 employees: £200 per late month.
- 50 to 249 employees: £300 per late month.
- 250+ employees: £400 per late month.
HMRC grants one unpenalized late filing per tax year; subsequent late submissions trigger immediate automated penalties, plus 5% surcharge penalties if payments are delayed past 30 days.
How ac-co Powers Automated Payroll Compliance
ac-co delivers modern, automated payroll directly integrated with your accounting books:
- Calculates PAYE, National Insurance, student loans, and pension contributions with mathematical precision.
- Submits Real Time Information (FPS) submissions to HMRC automatically on payment day.
- Reclaims the Employment Allowance and offsets CIS deductions suffered on monthly EPS filings.
- Generates digital, compliant P45 and P60 documents accessible to staff in their secure employee portal.