Payslip Errors: What To Do If Your Pay or Tax Looks Wrong

Spotting a mistake on your payslip can be worrying — especially when it affects your pay or tax. The good news? Most payroll errors are easy to fix if you know what to look for and act quickly. Here’s what to check, who to contact, and how to correct any payslip problems before they snowball.

Common Payslip Errors

The most frequent issues include:

• Incorrect gross or net pay
• Wrong tax code or National Insurance number
• Missing overtime, bonuses, or holiday pay
• Deductions that look unfamiliar or too high
• Payslips not being issued at all

Even small mistakes can affect your tax record or benefits, so it’s worth reviewing each payslip carefully.

Step 1: Check the Basics

Start with these key details:

• Your name and NI number are correct.
• Employer name and PAYE reference match your contract.
• Pay period (dates covered) matches your normal schedule.
• Tax code matches the one HMRC sent you.

👉 If any of these are wrong, flag it to payroll or HR immediately.

Step 2: Compare With Previous Payslips

Look at your last few payslips side by side.
If you notice changes in tax deductions, pension amounts, or net pay that aren’t explained by a pay rise or bonus, something may be off.

Keep a running record of your payslips — it makes spotting problems much easier.

Step 3: Speak to Payroll or HR

In most cases, payroll teams can fix the issue before your next payday.
If you’re underpaid, they may arrange a corrective payment; if you’ve overpaid tax, it’s usually adjusted automatically in your next pay run.

Be polite but firm, and always keep written records of your conversations.

Step 4: Contact HMRC if Needed

If the issue relates to your tax code or National Insurance, contact HMRC directly.
You can update your details or check your tax code through your Personal Tax Account online.

HMRC helpline (UK): 0300 200 3300

Step 5: Learn From It

Regularly checking your payslips helps prevent future problems.

• Keep digital copies in secure storage.
• Review totals against your P60 each year to ensure they match.
• Use our Free Payslip Creator to understand how figures should add up.

Internal Links

• ➡️ Not sure what should appear on your payslip? Read What Should Be on a Payslip.
• ➡️ Confused by deductions? Here’s our Payslip Deductions Explained.
• ➡️ Cross-check with your P60 guide to ensure annual figures match.

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