By Cherie Griffiths | Payroll Consultant, Australian Payroll Association
I once came across an underpayment hidden in an enterprise agreement. Payroll had been processed the same way for years and nobody had questioned the approach. It took months of investigation and advice from external experts to establish what one clause actually required.
The result? More than $1 million in back payments.
Nobody in that business had deliberately set out to underpay employees. The payroll team was experienced, the process was established, and the clause had been read and applied in good faith. The problem was that the wording could be interpreted in more than one way and the interpretation used in payroll was not the correct one.
It is a reminder that payroll compliance is not just about processing pay accurately. It is about making sure you are paying the right entitlements in the first place.
Payroll systems are designed to follow instructions. Once a pay rule has been configured, the system will generally apply it consistently every pay cycle. But consistency does not necessarily mean correctness. If a clause has been interpreted incorrectly, that error can be repeated hundreds or thousands of times before anyone realises there is a problem. Reports may balance, employees receive their usual pay, and the payroll team has no obvious reason to question a process that has worked the same way for years.
Employees may not recognise the issue either, particularly when the relevant entitlement depends on complex Award or Enterprise Agreement wording.
This is what makes interpretation errors so difficult to detect. The payroll process can appear to be working exactly as intended, while the underlying pay rule is wrong.
Industrial instruments contain detailed rules that need to be understood in context. A small misunderstanding can have a significant financial impact, particularly when it is built into payroll and applied over an extended period.
Common risk areas include:
Allowances and loadings: Some are fixed amounts, while others are calculated as a percentage of a specified rate. The clause may also determine when an allowance applies and whether it interacts with other payments. Getting the basis wrong can create a recurring underpayment.
Penalty rates and overtime: The wording determines which rates apply, when they apply and whether particular payments are cumulative or operate instead of another rate. Assuming that a familiar pay rule applies across every circumstance can lead to errors affecting entire employee groups.
Employee classifications: An employee's classification must reflect the applicable instrument and the relevant classification criteria. Changes to duties, responsibilities or work arrangements can affect the appropriate level, but payroll may not be informed when those changes occur.
Award and Enterprise Agreement interactions: An Enterprise Agreement does not simply remove the need to understand the underlying Award. The applicable legal requirements, including the better off overall test when an agreement is made, and the ongoing operation of the agreement must be understood. Changes to Award rates can also have implications that need to be assessed rather than assumed.
Leave and termination payments: Different instruments can contain different rules for leave loading, overtime related entitlements and termination payments. Errors may remain undetected until an employee takes leave or leaves the organisation.
In each case, the issue may not be a failure to follow the payroll process. It may be that the process was built on an incorrect interpretation from the beginning.
The financial consequences can extend well beyond the original underpayment. Depending on the circumstances, an organisation may need to calculate historical entitlements, make back payments, address superannuation obligations, consider interest, correct payroll configuration and review whether other employees have been affected. There can also be regulatory, legal, employee relations and reputational consequences.
The Fair Work Ombudsman’s reported recovery figures and the penalties that may apply demonstrate the scale of wage compliance risk. Serious contraventions can attract significantly higher penalties, and intentional wage underpayment can also have criminal consequences under Australian law.
The distinction between an honest mistake and deliberate conduct matters, but good intentions alone do not establish compliance. Organisations need to be able to demonstrate that their pay practices are based on a sound understanding of the relevant obligations.