Managing payroll may seem straightforward, but even small mistakes can lead to compliance issues, unhappy employees, and costly penalties.
Whether you’re running payroll yourself or using an external provider, understanding the most common payroll mistakes can help you avoid problems before they arise.
Here are some of the key payroll mistakes UK employers should watch out for.
1. Missing HMRC Deadlines
One of the most common payroll mistakes is failing to meet HMRC deadlines.
Employers must submit payroll information through Real Time Information (RTI) on or before each payday. Payments to HMRC must also be made on time.
Missing deadlines can result in:
- Late filing penalties
- Interest charges
- Unnecessary stress
🔑 Always ensure payroll submissions are made on or before payday to avoid penalties.
2. Incorrect Tax Codes
Using the wrong tax code can result in employees paying too much or too little tax.
This often happens when:
- A P45 is not provided
- Starter information is entered incorrectly
- Tax code updates from HMRC are missed
🔑 Always check tax codes carefully and apply updates promptly (tax code notices can be found on your Government Gateway).
3. Errors in Holiday Pay Calculations
Holiday pay is a common area where mistakes occur, especially for employees with:
- Variable hours
- Overtime
- Irregular pay
Incorrect calculations can lead to:
- Underpayment or overpayment
- Employee disputes
- Potential compliance issues
For more information check out our other holiday pay specific Blog
🔑 Holiday pay must reflect an employee’s normal pay (not just basic hours).
Incorrect holiday calculations are among the most common causes of employment tribunal claims.
4. Not Meeting Workplace Pension Duties
Workplace pensions (auto-enrolment) are a legal requirement for UK employers.
Common mistakes include:
- Failing to assess employees correctly
- Missing enrolment deadlines
- Not making correct contributions
- Not issuing required communications
🔑 Pension duties apply even if employees are not eligible. Employers must assess and communicate with employees.
5. Incorrect Statutory Payments
Statutory payments such as Statutory Sick Pay (SSP) and Statutory Maternity Pay (SMP) must be calculated correctly.
Mistakes can occur due to:
- Misunderstanding eligibility
- Incorrect average earnings calculations
- Missing qualifying periods
🔑 Statutory payments follow strict rules, getting them wrong can lead to underpayments and compliance issues.
6. Failing to Keep Proper Records
Employers are required to keep accurate payroll records, including:
- Employee pay details
- Tax and National Insurance deductions
- RTI submissions
Poor record keeping can create problems if:
- HMRC carries out a review
- An employee raises a query
- Corrections are needed later
🔑 Good record keeping is essential for compliance and peace of mind.
7. Not Issuing Payslips Correctly
Providing payslips is a legal requirement, but mistakes still happen.
Common issues include:
- Missing payslips
- Incorrect information
- Late delivery
🔑 Payslips must be accurate and provided on or before payday.
8. Trying to Manage Everything Without Support
Many small businesses start by managing payroll themselves, which is understandable.
However, as responsibilities increase, this can lead to:
- Errors due to lack of time
- Missed deadlines
- Increased compliance risk
🔑 Payroll involves ongoing responsibilities, getting the right support can save time and reduce risk.
Final Thoughts
Payroll mistakes are common, but they are also avoidable.
By understanding your responsibilities and putting the right processes in place, you can ensure your payroll runs smoothly and remains fully compliant.
Need Help with Payroll?
If you’re unsure whether your payroll is being handled correctly, SAH Payroll offers a simple, all-inclusive service covering payroll and workplace pensions.
With over 15 years’ experience, you’ll receive clear guidance, accurate processing, and ongoing support, all with transparent pricing and no hidden fees.
Feel free to get in touch for friendly, expert help.
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Compliance Disclaimer
Disclaimer: This article is for general information only and does not constitute legal or payroll advice.
For the most up-to-date official guidance, please refer to: