Cockatoo guide

Related-Party Transactions Australia 2026: New Rules & Compliance Guide

Is your business prepared for 2026’s related party transaction scrutiny? Review your policies and speak with your finance team today to ensure compliance and peace of mind.

Related-party transactions have always been a complex aspect of doing business in Australia, but 2026 is shaping up to be a year of heightened scrutiny and fresh regulation. With the Australian Taxation Office (ATO) and the Australian Securities & Investments Commission (ASIC) both tightening their approach, understanding the ins and outs of related-party dealings is more important than ever for directors, shareholders, and finance teams.

Simply put, a related-party transaction is a deal, arrangement, or transfer of resources between two parties who have a pre-existing relationship. In Australia, these transactions most commonly occur between:

These transactions can include loans, asset sales, leases, service agreements, or even share issues. While they can be legitimate and beneficial, they also create risks of conflicts of interest, tax avoidance, or shareholder disadvantage if not managed transparently.

2026 Regulatory Changes and ATO/ASIC Focus

In response to ongoing concerns about tax minimisation and corporate governance, 2026 has seen several key developments:

Failure to comply can trigger hefty penalties, forced transaction reversals, and reputational damage. In April 2026, for example, an ASX200 company faced a $2.5 million fine and public censure after failing to adequately disclose a multimillion-dollar asset transfer to a director’s family trust.

With regulators watching closely, Australian businesses should adopt these best practices:

For example, a mid-sized Melbourne manufacturing firm recently avoided regulatory issues by engaging an external auditor to review all related-party agreements annually and implementing a policy requiring board approval for any transaction over $50,000.

Red Flags and Common Pitfalls

Even well-intentioned businesses can stumble. Watch out for:

In 2026, the ATO has made it clear that even inadvertent mistakes—like missing disclosures or underestimating asset values—can result in investigation or penalty.

As Australia’s regulators step up both enforcement and technology-driven surveillance, the message is clear: related-party transactions must be above board, well-documented, and fully disclosed. With AI-powered data-matching becoming mainstream at the ATO, expect fewer transactions to fly under the radar in the years ahead.