Underpayment penalties in Australia can be substantial in 2026. An employer that intentionally underpays wages or entitlements may face criminal prosecution, while a civil contravention can attract a penalty of up to the greater of $546,000 or three times the underpayment amount for a corporation, depending on the circumstances. The safest approach is to identify the applicable award or agreement, audit pay rates and entitlements, correct errors quickly and keep a clear record of the process.

What are the underpayment penalties in Australia in 2026?

Australia’s underpayment rules come mainly from the Fair Work Act 2009, modern awards, enterprise agreements and the National Employment Standards (NES). The Fair Work Ombudsman explains that intentionally underpaying an employee can be a criminal offence from 1 January 2025. A business can also face civil penalties, back-payment orders, interest, legal costs and compliance obligations.

For a corporation, the maximum civil penalty for a contravention relating to an underpayment can be the greater of $546,000 or three times the underpayment amount. For an individual, the maximum can be $109,200. These are maximum court penalties, not automatic fines. The outcome depends on the conduct, the amount, whether the conduct was deliberate, the employer’s history and the steps taken after the error was found.

Separate criminal consequences apply where the underpayment was intentional. A person convicted of the criminal offence may face up to 10 years’ imprisonment, a fine, or both. A company can face a fine calculated under the criminal provisions. An employer that makes a genuine mistake and follows the available voluntary small business wage compliance process may have important protections, but that process should not be treated as permission to delay fixing payroll.

When can an underpayment become a criminal offence?

The criminal offence focuses on intentional conduct. In practical terms, prosecutors need to establish more than an accidental payroll calculation error. Deliberately ignoring a known award rate, manipulating hours, hiding entitlements or continuing a practice after being warned can create serious risk.

That does not make an accidental underpayment harmless. An inadvertent error may still breach the Fair Work Act, an award or an agreement and may require back payment, interest and civil penalty action. Employers should obtain advice promptly when they discover an error, particularly if it affects multiple employees or has continued over several pay cycles.

What evidence will matter?

Keep evidence showing how pay rates were selected, how payroll was checked, who approved changes, when an issue was identified and what remediation occurred. Retain rosters, timesheets, payslips, payroll reports, employment contracts, award classifications, calculations and communications. Good records do not erase a breach, but they help demonstrate a responsible response and make accurate remediation possible.

Which payroll errors create the biggest employer risks?

Common problems include applying the wrong modern award classification, missing overtime or penalty rates, failing to pay minimum engagement periods, mishandling casual loading, overlooking allowances, underpaying leave, not paying superannuation correctly or deducting money without lawful authority. Annualised salary arrangements can also create exposure if the salary does not cover every award entitlement or the required reconciliation is not completed.

Employers should not assume that a written contract overrides an award or the NES. A contract can provide better terms, but it cannot generally remove minimum statutory entitlements. Review the payroll compliance guidance for employers alongside the relevant award and the official National Employment Standards information.

How should an employer respond to an underpayment?

1. Stop the error. Put a temporary control in place so the next pay run does not repeat the problem.
2. Identify the scope. Establish the affected employees, dates, entitlements, award classifications and pay components.
3. Calculate carefully. Compare what was paid with what should have been paid, including overtime, penalties, allowances, leave and superannuation where relevant.
4. Get advice before communicating. An employment lawyer or specialist adviser can help test the methodology and response.
5. Pay the shortfall. Provide a clear calculation and process any required interest or adjustments.
6. Fix the system. Update payroll settings, contracts, classification records, manager training and audit controls.

Large or complex reviews should be documented as a remediation project. Consider whether a self-report, regulator engagement or formal compliance process is appropriate. The Fair Work Ombudsman’s criminal prosecution guidance explains the seriousness of intentional underpayment and the potential consequences.

For practical templates, use the free employment documents resource to support payroll checklists, records and employee communications. Employers can also review HR best practice guidance to strengthen approval and record-keeping controls.

How can employers prevent underpayment penalties?

Prevention requires more than choosing a payroll software package. Assign responsibility for award interpretation, keep a current register of classifications and rates, and review pay tables whenever an award or workplace law changes. Managers should understand that approving a roster or timesheet can affect overtime and penalty exposure.

Run a periodic sample audit comparing contracts, rosters, timesheets, payslips and bank payments. Test ordinary hours, overtime, weekends, public holidays, allowances, leave and termination payments. Record the result, exceptions and corrective action. Small businesses should use the Fair Work Ombudsman’s employer resources, while obtaining tailored advice where the rules or workforce are complex.

Fair Work Centre provides independent private guidance to employers on payroll controls, award compliance and remediation planning. A review of your employment contracts and payroll processes can identify gaps before they become a broader claim or investigation.