NAB to Take $130 Million Earnings Hit After Staff Underpayments Revealed

Incident Overview

National Australia Bank (NAB) has disclosed a $130 million earnings impact in fiscal 2025 following a comprehensive payroll review that uncovered widespread staff underpayments across its workforce. The bank announced the remediation charge on Monday, 18 August 2025, marking the latest in a series of high-profile wage compliance failures in corporate Australia.

NAB has committed to backpay all affected employees and is rolling out additional compliance measures across the organisation. The disclosure follows a 2019 payroll review that had already cost the bank more than $250 million.

Site and Time

The underpayments were identified through a payroll review spanning NAB’s operations across Australia. The bank operates multiple payroll systems and processing centres handling thousands of employees across retail banking, corporate, and support functions.

Persons Involved

Affected Workers

• Thousands of NAB employees across multiple divisions and pay grades identified as underpaid.

Bank Spokesperson

• Sarah White, NAB spokeswoman, issued a formal apology to staff on behalf of the organisation.

Nature of the Breach

Compliance Failure

• Widespread underpayments across the workforce due to payroll system and manual processing errors.
• Failure to correctly apply award entitlements and compliance obligations.

Remediation Scope

• Backpay to all affected employees.
• Implementation of enhanced compliance checks and automated payroll auditing systems.
• Total financial impact: $130 million in fiscal 2025 earnings (plus prior $250 million from 2019 review).

Injuries / Fatalities

Fatalities

• None reported.

Injuries

• None reported.

Investigation and Regulatory Response

NAB’s payroll compliance failures fall under the Fair Work Act 2009 (Cth) and state-based workplace laws. The Australian Fair Work Ombudsman and state workplace regulators have oversight of wage compliance across the banking sector. NAB has committed to full transparency with regulators and affected employees throughout the remediation process.

Broader Context

NAB’s disclosure reflects systemic challenges in Australia’s complex workplace awards system. Payroll compliance experts note that manual payroll checks struggle to keep pace with award complexity, and many organisations lack adequate automation and regular audit protocols. The case underscores the financial and reputational costs of wage compliance failures and the importance of robust internal controls across corporate Australia.

In Summary

NAB employees who believe they have been underpaid or have questions about their entitlements are encouraged to contact the bank’s dedicated remediation team or the Fair Work Ombudsman on 13 13 94 for independent advice. Workers may also lodge a complaint with their state workplace regulator or contact the Fair Work Ombudsman online at fairwork.gov.au.