Payroll software has become an essential tool for modern businesses, streamlining the calculation of wages, tax deductions, pension contributions and other statutory payments.
While these systems help reduce administrative workload, employers should not assume that payroll software always operates perfectly. Regular checks are vital to ensure calculations remain accurate and that employee data is processed in compliance with data protection regulations.
Why checking payroll output matters
One of an employer’s primary responsibilities is to ensure employees are paid correctly and on time. Payroll software relies on accurate configuration and up to date tax rules to calculate wages, national insurance contributions, income tax, pension deductions and other statutory payments such as statutory sick/maternity pay. If system settings are incorrect or updates have not been properly applied, employees may be underpaid or overpaid. Even small errors can accumulate over time, potentially resulting in financial loss, employee dissatisfaction and reputational damage to the organisation.
Recently, it came to light that some payroll software packages were incorrectly calculating pension contributions for employees on maternity leave. While employee contributions were calculated correctly based on actual pay in the period, the employer contributions were incorrectly calculated using the same method. Instead, the software should have calculated employer contributions using a percentage of the employee’s pre-maternity leave pay plus any increases during maternity leave. A previous Employer Focus article examined the issue in more detail.
Payroll errors can also create compliance issues. In the UK, employers must ensure their payroll processes meet HMRC’s requirements for Pay As You Earn (PAYE). If software calculates tax or national insurance incorrectly, employers may end up submitting inaccurate information through Real Time Information (RTI) submissions, potentially leading to penalties or enquiries from HMRC.
Who is responsible for under/overpayments?
Where tax and national insurance have been incorrectly calculated, the employee is responsible for any underpayment or conversely will receive a refund of any overpayment. HMRC will usually contact the employee after the end of the tax year where either is due.
However, any underpayment of wages (including national minimum wage (NMW) failures), statutory payments or pension contributions are the liability of the employer. The employee may try to seek damages for any interest they are charged on late tax payments or where they have suffered hardship or loss due to underpayments of wages, pension contributions or other payments. A past Employer Focus article highlights the need to stay NMW compliant and explains the interaction of the NMW with payroll deductions.
Regular payroll checks help reduce these risks. Employers should periodically review system settings, tax codes, pension contribution rates and statutory payment calculations, such as sick pay or parental leave entitlements. Crosschecking payroll outputs against manual calculations or independent reports can help identify inconsistencies at an early stage. It is equally important to confirm that software providers are applying legislative updates promptly when tax rules or employment regulations change. This is particularly important at the start of a new tax year. Any issues identified should be reported to the software provider immediately.
Data protection
Another critical consideration is data protection. Payroll systems store highly sensitive personal data, including employees’ names, addresses, bank details, salary information and national insurance numbers. This data is covered by the UK General Data Protection Regulation (UK GDPR) and the Data Protection Act 2018. Employers, as data controllers, are responsible for ensuring that payroll information is processed securely and lawfully.
To maintain GDPR compliance, employers should ensure their payroll systems have appropriate security measures in place. This includes strong access controls, encryption of sensitive data, secure storage and clearly defined user permissions so that only authorised personnel can access payroll information. Employers should also ensure that personal data is retained only for as long as necessary and that there are clear processes for handling subject access requests or correcting inaccurate data.
Working with reputable payroll software providers can support compliance, but ultimate responsibility remains with the employer. Conducting due diligence on providers, reviewing data processing agreements and regularly assessing system security are essential in protecting employee data.
Final thoughts
In summary, payroll software is a powerful tool, but it should never operate without oversight. By regularly reviewing payroll calculations, applying software updates promptly and ensuring strong data protection practices, employers can maintain accuracy, meet regulatory requirements and safeguard both their employees and their organisation.
This article reflects the position at the date of publication shown above. If you are reading this at a later date you are advised to check that that position has not changed in the time since.
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