Internal Auditor (IA): Role, Value, and 2025 Trends in Australia

Internal auditors are no longer just compliance checkers—they’re now strategic partners steering Australian businesses through risk, regulation, and transformation in 2025. Here’s why their expertise is crucial for every organisation, from start-ups to ASX-listed giants.

The Expanding Role of Internal Auditors in 2025

Gone are the days when internal auditors (IAs) were perceived as the office police. In 2025, their role has evolved well beyond ticking boxes. The modern IA is a trusted advisor, collaborating with leadership to strengthen governance, streamline operations, and proactively identify risks—especially as cyber threats and ESG (Environmental, Social, and Governance) requirements intensify.

• Regulatory Guardians: With the Australian Securities and Investments Commission (ASIC) tightening enforcement on corporate governance, internal auditors ensure compliance with new standards—like the 2025 updates to the Corporations Act and whistleblower protections.

• Cyber Risk Sentinels: As ransomware and data breaches surge, IAs are vital in mapping digital vulnerabilities, aligning with the updated Australian Cyber Security Centre (ACSC) Essential Eight framework.

• ESG Champions: New 2025 reporting obligations mean companies must demonstrate environmental and social impact. Internal auditors help integrate ESG data into reporting processes, ensuring accuracy and credibility.

Real-World Impact: Internal Auditors in Action

Consider a mid-sized manufacturing company in Victoria. Facing a mandatory climate risk disclosure under the 2025 reforms, its internal audit team worked with finance, IT, and sustainability officers to map carbon data, verify controls, and ensure transparent reporting. The result? Not just compliance, but also a stronger reputation with investors and customers.

Or look at a fintech startup navigating the new Consumer Data Right (CDR) privacy requirements. An internal auditor’s review uncovered a data storage flaw—preventing a costly breach and preserving customer trust.

Across the board, IAs are also helping boards and audit committees adapt to hybrid workforces, by testing remote access controls and business continuity plans. Their findings drive smarter decision-making, not just regulatory box-ticking.

Key Skills and Tools for Today’s Internal Auditors

• Tech-Savvy Mindset: With AI and automation reshaping audit processes, IAs use data analytics tools (like ACL and IDEA) to spot anomalies and trends in real time.

• Strategic Communication: Modern auditors translate complex risks into clear recommendations that boards and executives act on.

• Continuous Learning: 2025’s fast-paced regulatory changes mean successful IAs stay ahead through ongoing professional development, such as the Institute of Internal Auditors Australia’s (IIA-Australia) new digital risk certifications.

These skills are in high demand—recent Hays recruitment data shows a 15% year-on-year increase in listings for internal audit roles across Australia, particularly in financial services and tech sectors.

Why Every Business Needs a Strong Internal Audit Function

Whether you’re a listed entity or a growing SME, a robust internal audit function delivers tangible value:

• Early Risk Detection: Spotting issues before they become crises—protecting both reputation and bottom line.

• Operational Efficiency: Streamlining processes, reducing waste, and improving profitability.

• Investor Confidence: Transparent internal controls reassure shareholders and regulators alike.

In 2025, with regulatory scrutiny and cyber risk at all-time highs, internal auditors are indispensable. They’re not just checking the past—they’re shaping the future.