Your UK payroll audit guide & checklist
7-step audit framework: a clear sequence covering timing, data cleansing, pay reconciliation, and process improvement, ready to follow on your next internal review.
PAYE and RTI compliance checks: practical guidance on validating tax codes, deductions, and HMRC submissions before errors turn into penalties.
UK-specific payroll controls: advice on aligning records with 2026/27 HMRC requirements, from starter and leaver processes through to year-end reporting.
Real-world audit findings: the most common errors UK employers uncover, with the checks that help you spot them early.
Frequently asked questions
How often should payroll be audited?
How often should payroll be audited?
It’s best practice to run a payroll audit semi-regularly, be it once a year or more frequently. It’s probably best to avoid conducting an audit of your payroll around the end of tax year, as things can be a little hectic. You may even consider setting up a dedicated end of tax year checklist to ensure proper payroll compliance.
Summertime is a traditionally quieter time in the world of UK payroll, so can be an ideal time to run an audit.
How to do a payroll audit effectively?
How to do a payroll audit effectively?
You execute the audit process by following a strictly structured checklist, starting with employee data cleansing and ending with actionable process improvements. Consistency is the key to successfully managing your payroll journals.
What is an internal payroll audit?
What is an internal payroll audit?
An internal payroll audit is a proactive review carried out by your own in-house team rather than an external agency. It serves as a vital preventative measure to establish solid payroll best practices before HMRC gets involved.
How to check payroll compliance?
How to check payroll compliance?
You verify compliance by ensuring your internal records correspond exactly with the amounts submitted via your HMRC RTI submissions. Discrepancies here can trigger severe fines and unwanted external scrutiny.
What payroll records to review in an audit?
What payroll records to review in an audit?
You must review timesheets, year-to-date (YTD) tax documents, variable pay records, and employee status changes. Validating UK tax codes is absolutely essential for calculation accuracy.
What happens if you fail a payroll audit?
What happens if you fail a payroll audit?
Failing an audit can result in hefty financial penalties, enforced external audits, and employees being incorrectly placed on an emergency tax code. It also makes handling a new employee payroll setup incredibly difficult without accurate historical data.
