Evolving compliance requirements mean the goalposts for payroll compliance are regularly moving and the risk of financial penalties is increasing.
With HMRC marching towards automation, digital enforcement and stricter reporting guidelines, even well-meaning employers might find themselves breaking the rules.
Understanding these common, yet costly, payroll compliance mistakes can help your business stay one step ahead.
When an employee is incorrectly classified, errors in tax, National Insurance, statutory payments and pension deductions can arise.
Incorrect classification can be easily done. For payroll, this might mean treating a team member as a temporary contractor or a part-time employee as a full-time worker, for example.
For unpaid tax because of misclassification, HMRC can impose fines based on the ‘potential lost revenue’.
If you can prove the payroll mistake was an innocent one, fines can be avoided. Where errors are non-deliberate but careless, HMRC can impose 30 per cent fines of lost revenue.
As these fines are only add-ons, businesses are still legally required to pay back the full lost tax revenue as well.
Giving workers correct classifications requires careful payroll due diligence, as carelessness might be costly for SMEs.
The rising minimum wage floor might lead to accidental wage violations from employers.
The statutory minimum pay has been rising consistently over the last few years, with the UK National Living Wage (NLW) increasing by 43 per cent over the past five years.
As employees get older and enter new NLW pay brackets, employers need to track birthdays to make sure they are paid the correct wage.
An 18th and 21st birthday trigger an automatic pay rise. Under current statutory minimum rates, someone turning 21 would have their pay rise from £10.85 an hour to the NLW of £12.71.
For those just over the statutory minimum, the incremental rises increase the risk of underpayment.
For example, uniform and equipment deductions from a salary might pull a worker only earning 30 pence over the hourly minimum under the hourly minimum rate.
Employers need to record birthdays, stay up to date with minimum wage increases and factor in equipment costs to ensure no worker is underpaid.
Financial penalties for underpaying workers below the statutory minimum are substantial.
They can include immediately paying all outstanding wage arrears, alongside fines of up to 200 per cent of the total underpayment, capped at £20,000 per employee.
From April 2026, all employees qualify for Statutory Sick Pay (SSP), regardless of earnings or working schedules.
The first day of sickness entitles any employee to SSP, removing the three-day wait.
While the maximum claim period remains 28 weeks, the weekly rate has increased to the lower of £123.25 or 80 per cent of average earnings.
As the changes are new, it is likely some employers’ absence policies might reflect the old three-day wait.
If these outdated provisions extend to payroll systems, penalties can be issued to employers for missed SSP payments.
If an employer were to underpay SSP, they can face civil penalties of up to £3,000 plus the back payment of the missing amount.
It might sound dramatic, but compliance failures for smaller businesses can sometimes pose an existential threat.
The significant financial penalties that can be imposed for mistakes and inaccuracies can have far-reaching consequences.
Where a £20,000 HMRC fine is the same as a rounding error for larger corporations, it can wipe out the entirety of a small business’s cash reserves.
Financial shocks are felt disproportionately more by SMEs, as sudden demands for back-dated holiday pay or income tax might be enough to trigger insolvency.
Tax non-compliance can also impact a small business’s credit rating, making it difficult to secure loans or invoice financing.
We understand that the many payroll trip hazards and accompanying financial penalties can be a source of anxiety for many businesses.
To make sure your workers have the right classification, our accountants can review contractor and freelance arrangements and advise on any IR 35 exposure.
We can help you keep up to date with changing minimum wages, spot hidden underpayments and conduct regular audits to reduce the risk of arrears penalties.
With the changes to payroll processing imposed by the Employment Rights Act steadily taking effect, our experts can keep your systems up to date to reflect new rules and obligations.
Reach out to one of our accountants to help your business stay compliant and avoid costly errors.
