What Payroll Records Must a Business Keep for HMRC

At Towerstone, we specialise in payroll accounting services and have written this article for employers managing records. The purpose of this article is to explain record keeping duties, helping you make informed decisions.

Running payroll in the UK carries strict legal responsibilities. Employers must pay staff correctly, submit Real Time Information to HMRC, calculate deductions accurately, and comply with employment law. One of the most important but often misunderstood duties is keeping proper payroll records. HMRC expects every employer to maintain accurate, complete, and up to date information for each employee and to retain it for a number of years. These records support tax compliance, protect employers during inspections, and ensure employees receive the correct pay and statutory entitlements.

In my opinion payroll record keeping is one of the most important parts of running a compliant business. Employers who neglect it often face penalties, incorrect PAYE balances, staff disputes, and unnecessary stress. This guide explains exactly what payroll records a business must keep for HMRC, how long to keep them, what format they should be in, and how to avoid the common mistakes that lead to compliance problems.

Why HMRC Requires Payroll Records

Payroll affects several major tax and compliance areas including:

• Pay As You Earn

• National Insurance

• Statutory payments

• Student loans

• Pensions

• Benefits in kind

• National Minimum Wage compliance

Because of this HMRC needs employers to keep detailed records so that:

• Payroll submissions can be checked

• HMRC can review PAYE and NI accuracy

• Tax code changes can be monitored

• Errors can be corrected

• Investigations can be carried out

• Employers can evidence compliance

Records protect employers as much as they protect HMRC. Without proper records it becomes extremely difficult to defend payroll decisions if an employee challenges their pay or if HMRC opens a review.

What Payroll Records Must a Business Keep

HMRC requires businesses to keep a wide range of payroll records. These cover employee details, pay, deductions, hours, statutory payments, and payroll submissions.

The following sections break down each category in detail.

1. Employee Personal and Starter Information

Every employer must keep accurate employee details. These form the basis of accurate payroll calculations and RTI submissions.

Required records include:

• Full name

• Address

• Date of birth

• Gender

• National Insurance number

• Start date

• Leaving date if applicable

• Starter declaration (from a P45 or Starter Checklist)

• Employment contract or written statement of terms

• Job title and working pattern

• Right to work documentation

Accurate starter information is vital. In my experience many payroll errors start with incorrect or incomplete data at onboarding.

2. Pay Records for Each Employee

Employers must keep a full breakdown of earnings. This information must be detailed enough to show how pay was calculated.

Required pay records include:

• Gross pay

• Basic pay rate

• Overtime pay

• Bonuses

• Commission

• Shift allowances

• Tips or tronc if applicable

• Holiday pay

• Sick pay

• Maternity, paternity, adoption, shared parental pay

• Unpaid leave

• Salary sacrifice adjustments

• Benefits in kind if applicable

• Net pay after deductions

Pay records must match what is reported in the Full Payment Submission sent to HMRC.

3. Records of Hours Worked

Some employers do not realise that HMRC expects evidence of hours worked especially for National Minimum Wage compliance.

Employers must keep:

• Timesheets

• Clock in and clock out records

• Shift patterns

• Overtime records

• Records of unpaid breaks

• On call hours where relevant

• Records for salaried hours workers in sectors covered by minimum wage monitoring

These records are essential if HMRC checks minimum wage compliance. In my opinion hourly records are often the weakest part of small business payroll because many employers rely on informal methods.

4. Deductions and Contributions Records

Every deduction or contribution made through payroll must be fully documented.

Required records include:

• Income Tax deductions

• National Insurance contributions

• Student loan repayments

• Postgraduate loan repayments

• Pension contributions (employee and employer)

• Attachment of earnings orders

• Child maintenance deductions

• Union fees

• Repayments for loans or advances

• Salary sacrifice adjustments

• Court orders

Each deduction must be auditable and correctly linked to legal or contractual documentation.

5. HMRC Real Time Information (RTI) Submissions

Employers must keep full records of every RTI submission made.

Required records:

• Full Payment Submissions (FPS)

• Employer Payment Summaries (EPS)

• Year end submissions

• A record of corrections or amended RTIs

• Confirmation of submission receipts

These records prove that the employer met deadlines and submitted accurate information.

6. PAYE Payment Records

Employers must also keep records showing how much they paid to HMRC.

Required records include:

• Monthly PAYE and NI payments

• Payment references used

• Breakdown of PAYE liability calculations

• CIS deductions suffered if used to offset PAYE

• Payment plans agreed with HMRC if applicable

• Evidence of late payments with explanations

If an employer ever disputes PAYE arrears these records become essential.

7. Pension and Auto Enrolment Records

Auto enrolment rules require employers to keep detailed pension records for every worker.

Required records include:

• Pension scheme information

• Eligibility assessments

• Opt in notices

• Opt out notices

• Contribution calculations

• Pension submissions to provider

• Re-enrolment assessments every three years

• Employee communications

• Details of employer contributions

• Salary sacrifice pension arrangements

• Record of postponement where used

The Pensions Regulator can request these documents at any time.

8. Holiday and Leave Records

Payroll must be able to evidence entitlement and payments for:

• Annual leave

• Statutory sick leave

• Maternity leave

• Paternity leave

• Adoption leave

• Shared parental leave

• Parental bereavement leave

• Dependants leave

• Unpaid leave

• Flexi time arrangements

Holiday records are especially important for part time employees and those with irregular hours.

9. Benefits in Kind and Expenses Records

If the employer provides any benefits or reimburses expenses certain records must be kept.

Required records include:

• Company car usage

• Fuel benefit records

• Private medical insurance

• Mobile phone and broadband reimbursements

• Trivial benefits where appropriate

• Business mileage logs

• Subsistence claims

• Accommodation or living expenses

• Any items included on a P11D or payrolled through payroll

HMRC can request these at any time to check whether a benefit in kind should apply.

10. Apprenticeship and Deductions Records

For apprentices and apprenticeships funded through the Apprenticeship Levy employers must keep:

• Proof of apprentice status

• Apprentice pay rates

• Training records

• Levy calculations

• Co investment payments

These records are essential for compliance with both HMRC and apprenticeship funding rules.

11. Records for Leavers

When an employee leaves a business payroll must maintain:

• Leaving date

• Final payslip

• P45

• Payment in lieu of notice calculations if applicable

• Holiday pay or deductions

• Redundancy calculations

• Final RTI submission

Many HMRC discrepancies arise when leaving dates are missing or incorrect.

12. Records Related to National Minimum Wage

HMRC can open a minimum wage investigation at any time. Employers must keep records that demonstrate compliance.

These include:

• Pay rates

• Hours worked

• Deductions

• Accommodation offset records

• Piece worker calculations if used

• Daily or weekly work schedules

Records must be detailed enough to show that each worker received at least the minimum wage for every pay reference period.

How Long Employers Must Keep Payroll Records

Most payroll records must be kept for three years after the end of the tax year they relate to. However in practice it is wise to keep them for six years because:

• HMRC can investigate older years under certain circumstances

• Companies House records may require supporting payroll evidence

• Payroll affects pensions and other long term entitlements

• Employees may challenge pay after several years

In my opinion six years is the safest retention period for all payroll documents.

Specific retention rules

• Pension auto enrolment: six years

• Opt out notices: four years

• National Minimum Wage records: six years

• PAYE records: three years legally but six years recommended

• Expenses and benefits: six years

Keeping everything for six years covers every requirement.

What Format Payroll Records Should Be In

HMRC allows employers to keep payroll records in any format as long as they are:

• Accurate

• Readable

• Complete

• Accessible

• Backed up

• Reproducible on request

Acceptable formats include:

• Digital payroll software

• PDF payslips and RTI receipts

• Cloud storage

• Spreadsheets

• Paper files

Digital records are strongly recommended. Paper records can easily be lost or damaged.

I always advise employers to ensure payroll data is backed up and stored securely because it contains sensitive personal information.

What Happens If Payroll Records Are Missing or Incorrect

If HMRC inspects a business and payroll records are missing or incomplete HMRC may:

• Estimate PAYE and NI owed

• Issue penalties

• Charge interest

• Open a wider investigation

• Challenge minimum wage compliance

• Request additional evidence

Missing records put the employer in a very weak position because HMRC assumes the worst in the absence of evidence.

Employees may also make claims for:

• Unpaid holiday

• Incorrect deductions

• Underpaid wages

• Missing statutory pay

Good records protect the business from these issues.

Common Payroll Record Keeping Mistakes

In my experience the most common mistakes include:

• No timesheets for hourly staff

• Missing or incorrect starter details

• Incorrect or missing NI numbers

• Not retaining RTI receipts

• Not keeping pension assessment data

• Not recording holiday correctly

• Relying on informal WhatsApp messages for hours worked

• Losing track of salary sacrifice agreements

• Not recording unpaid leave

• Failing to document pay rises or changes

• Forgetting to keep records for leavers

Most of these mistakes are avoidable with simple systems.

Best Practices for Keeping Payroll Records

1. Use payroll software

Modern cloud payroll systems automatically store records and provide audit trails.

2. Create a centralised payroll folder structure

Store timesheets, contracts, RTI receipts, deductions evidence, and pension files clearly.

3. Keep HR and payroll in sync

Contract changes must be updated in both HR systems and payroll.

4. Back up data

Payroll records should be backed up securely.

5. Keep paper documents digitised

Scan anything received in paper format.

6. Check records before each payroll run

Prevent errors before they reach HMRC.

7. Document changes and authorisations

Every pay change needs a record of who authorised it.

In my opinion clean record keeping is one of the most effective ways to avoid payroll disputes and HMRC problems.

Real UK Examples

Example 1: Small business without timesheets

A small café keeps no written hours for part time staff. HMRC audits and finds potential minimum wage breaches because they cannot verify hours. The employer must pay arrears and penalties.

Example 2: Missing pension records

A construction employer fails to keep opt out notices. The Pensions Regulator assumes the employees should have been enrolled. The employer must pay backdated contributions.

Example 3: Incorrect NI number

A retail employer submits RTI with a wrong NI number. HMRC creates duplicate records and the employee’s tax code becomes incorrect. Clean records fix the issue.

Example 4: No leaver documentation

A charity forgets to file a P45 for an employee. HMRC believes the employee still works there and incorrect tax is collected at their new job.

These are common issues that strong payroll records would prevent.

Final Thoughts

Payroll record keeping is one of the most important responsibilities for any employer. HMRC expects businesses to keep detailed and accurate records covering pay, hours, deductions, pensions, holiday, RTI submissions, and employee information. Good records protect the business from penalties, PAYE errors, tax disputes, and employee claims. Poor or incomplete records leave the employer exposed.

In my opinion businesses should take payroll record keeping just as seriously as tax filing. With proper systems and clear processes payroll record keeping becomes straightforward and removes one of the biggest risks employers face.

If you would like to explore related payroll guidance, you may find What payroll reports should a business review each month and What should I do if my payslip is wrong useful. For broader PAYE rules and employer obligations, see our PAYE guidance centre.