Payroll management can be difficult, and errors are more common than expected. Even little errors might result in overpayments, underpayments, tax miscalculations, or compliance concerns. If not corrected swiftly, these errors might result in penalties, employee unhappiness, and possible HMRC payroll disputes. Understanding how to fix running payroll errors is critical for firms seeking to maintain accuracy and compliance. Whether your PAYE bill does not meet expectations or payroll calculations appear inaccurate, acting quickly is critical.
This guide explains how to fix payroll mistakes in the UK, covering common errors, pre-correction checks, and step-by-step solutions. By applying these insights, you can effectively rectify payroll disparities and avoid future issues.
Your PAYE Bill Is Not What You Expected
Receiving an inaccurate PAYE bill from HMRC can be alarming. Overpayment strains financial flow, whereas underpayment incurs penalties. Before taking action, employers must investigate the source of the problem.
Here are some frequent reasons why your PAYE bill may not meet expectations:
- Incorrect payroll figures: Errors in compensation computations, deductions, or tax codes can cause inconsistencies.
- Duplicate payroll submissions: If payroll is submitted multiple times, HMRC may record double payments.
- Missed adjustments in the Employer Payment Summary (EPS): Failure to disclose reductions for statutory payments or Employment Allowance might raise the cost.
- Incorrect Full Payment Submission (FPS): If the Full Payment Submission (FPS) report contains inaccuracies, HMRC will calculate tax and national insurance (NI) wrongly.
- Previous period corrections: Past payroll adjustments may be reflected in the current bill.
To fix running payroll errors, employers must first compare payroll records with HMRC’s calculations. Reviewing Full Payment Submission (FPS) and Employer Payment Summary (EPS) submissions can help identify disparities. If errors are discovered, use the correction process detailed below to fix them efficiently.
What to Check Before Correcting Errors
Before making payroll corrections, conduct a thorough review to avoid further issues. Employers should double-check critical areas to ensure that adjustments are accurate.
1. Payroll Software Records:
Verify payroll reports in your software. Look for errors, duplicate entries, or missing deductions. To avoid payroll mismatches, ensure that employees’ start and finish dates are precise.
2. HMRC Submissions (FPS/EPS):
Compare the information submitted to HMRC with internal records. If FPS or EPS reports contain errors, determine which submissions need to be corrected. This is crucial for fixing HMRC payroll disputes efficiently.

3. Employee Information:
Check the tax codes, NI category letters, and gross salary figures. Using the wrong tax code might result in improper deductions and tax liabilities. If an employee has gone, ensure that the proper departure date was reported.
4. Statutory Payments and Deductions:
Consider statutory sick pay, maternity pay, student loan deductions, and pension payments. Errors in these computations can have an impact on tax returns and PAYE expenses.
5. Previous Payroll Adjustments:
If errors were made in previous payrolls, make sure they are correctly accounted for. Misreported adjustments might result in recurring problems in PAYE calculations.
Taking these procedures before correcting payroll issues helps you avoid unnecessary back-and-forth with HMRC. It also guarantees that fixes are right, preventing future errors.
Correcting Payroll Errors
Once errors are detected, they must be corrected as soon as possible in order to remain compliant and preserve accurate payroll records. Follow these steps to fix running payroll errors effectively:
- Identify the Type of Error: Determine whether the problem is due to inaccurate salary payments, tax miscalculations, or misreported employee information. Categorizing the problem aids in identifying the appropriate corrective approach.
- Amend FPS and EPS Submissions: If errors are found in an FPS submission, resend an amended report through your payroll software. Submit an EPS correction for any errors with statutory payments or earlier adjustments.
- Adjust Payroll in Your Software: Update the payroll records to reflect the changes. Before proceeding with the next payroll cycle, make sure that all modifications have been saved. This avoids the same mistake from being made again.
- Inform Affected Employees: If an employee’s salary is inaccurate, advise them of the change. Provide a breakdown of the correction and ensure that their payslip shows the proper amount.
- Verify HMRC’s Updated Records: After submitting adjustments, ensure that HMRC has updated your account. Log in to your HMRC online account to ensure that the updated statistics reflect your adjustments.
- Prevent Future Payroll Errors: Implement internal checks before submitting payroll to prevent repeating errors. Automate computations wherever possible and audit payroll records on a regular basis.
By following these steps, businesses can fix running payroll errors while minimizing disruption. Understanding how to fix payroll mistakes in the UK ensures compliance and smooth payroll operations. Taking a proactive approach to error prevention will save time, money, and stress in the long run.

Fixing Incorrect Payments to HMRC
Mistaken payments to the HMRC can occur for a variety of reasons. Overpayments, underpayments, or erroneous allocations may result in compliance concerns. Here’s how to fix running payroll errors related to HMRC payments:
- Identify the mistake: Check payroll records, past submissions, and HMRC statements to confirm the discrepancy.
- Review PAYE calculations: Ensure the correct tax, National Insurance, and deductions were applied.
- Adjust your next payment: If you overpaid, reduce future PAYE payments to balance the amount. If you paid less than you should have, pay the difference right away.
- Submit a correction: To report modifications, use the Employer Payment Summary (EPS).
- Contact HMRC if necessary: If there are any unsolved concerns, phone the employer helpline to discuss the HMRC payroll dispute.
Acting soon prevents further fines and interest charges. Always double-check submissions before processing payments.
Correcting Employee Pay and Deductions
Payroll errors influencing employee salaries or deductions can cause disagreements and displeasure. To fix running payroll errors, follow these steps:
- Check payslips for errors: Verify basic salary, overtime, bonuses, and deductions like tax and pension contributions.
- Adjust payroll records: If an error is discovered, update the payroll system before the following pay period.
- Issue corrected payslips: Provide employees with revised payslips reflecting the accurate amount.
- Adjust tax and national insurance: If a miscalculation affects deductions, make sure the following payroll run corrects the error.
- Communicate with employees: Explain the error and correction process to maintain trust.
Ensuring payroll accuracy decreases complaints and prevents legal consequences.

Correcting an Employee’s National Insurance Category Letter
Using the wrong National Insurance (NI) category letter can result in improper deductions. Check the employee’s eligibility for particular categories to fix running payroll errors connected to NI. The correct letter is determined by factors such as age, employment type, and pension payments. If an error is discovered, update your payroll software and make the appropriate changes in the next payroll submission.
Notify the employee of the revision and ensure that they receive appropriate payslips reflecting the change. If an overpayment or underpayment is made due to the incorrect NI category, fix it during the next payroll cycle or contact HMRC for assistance. Keeping employee details up to date helps prevent such issues.
Handling Payroll Submission Errors
Payroll submission errors may result in fines or delays in employee payouts. To fix running payroll errors, verify the accuracy of your Full Payment Submission (FPS) and Employer Payment Summary (EPS) before sending them to HMRC. Common errors include missing employee information, using erroneous tax codes, and sending payroll late.
If an error is identified after submission, it should be corrected quickly. Minor faults may be resolved with modifications to the next FPS. For major discrepancies, HMRC’s online portal allows employers to submit corrections. Regularly examining payroll submissions guarantees compliance and avoids recurring errors. Employers should also keep up with HMRC’s payroll standards to avoid filing problems.

Contacting HMRC for Assistance
When payroll mistakes go unaddressed, it is vital to seek assistance from HMRC. Employers can contact HMRC’s employer hotline to fix running payroll errors that cannot be fixed via payroll software. If a payroll disagreement arises, HMRC can provide official guidelines on how to resolve discrepancies, deal with tax code concerns, or correct overpayments.
To expedite the settlement process, ensure that all necessary payroll data are readily available before phoning HMRC. Keeping a record of previous payroll submissions and correspondence with HMRC allows you to track corrections and avoid repeating errors. Businesses can maintain compliance and ensure proper employee pay by taking proactive efforts and seeking timely advice.
Conclusion
Running payroll requires accuracy to avoid compliance issues and disputes. Quickly correcting problems ensures that payroll operations run smoothly and that employees are satisfied. Employers must examine records on a regular basis, use reputable payroll software, and stay up-to-date on HMRC regulations. If problems persist, getting professional assistance can help prevent future payroll troubles. Following these measures can help firms in the UK efficiently fix running payroll errors and maintain compliance.