Australia's government has signalled a major regulatory overhaul of the Big Four accounting firms, with consideration being given to breaking them up and subjecting them to federal corporate oversight following a series of damaging scandals that have exposed serious gaps in the country's supervisory framework. The Treasury department outlined these potential interventions in a policy paper released this week, reflecting growing frustration with the conduct of Deloitte, EY, KPMG and PwC, which have collectively damaged trust in the profession and raised serious questions about whether Australia's current regulatory apparatus is fit for purpose.
Assistant Treasurer Daniel Mulino articulated the government's concerns bluntly, stating that recent behaviour from major accounting and consulting firms operating in Australia has failed to meet basic standards of fairness and honesty. These lapses, he noted, have corroded confidence in the firms themselves while simultaneously undermining the broader institutional frameworks designed to protect market integrity. The statement underscores the government's view that voluntary compliance and industry self-regulation have proven insufficient to maintain professional standards among these influential institutions.
The proposed measures being explored include structural separation that would force firms to split their audit and consulting divisions, preventing the conflicts of interest that arise when the same entity audits a client's accounts while simultaneously providing lucrative advisory services to that same client. An alternative approach under consideration involves operational separation, which would prohibit firms from offering both audit and consulting services to individual clients, though it would allow them to maintain unified corporate structures. Additionally, the government is examining whether to reduce the maximum partnership size from the current 1,000 partners down to 400, bringing accounting firms in line with regulatory standards applied to other professional services sectors such as law.
A critical element of the proposed framework involves bringing the Big Four under the purview of the Australian Securities and Investments Commission, the nation's federal corporate regulator. Currently, these firms operate as partnerships rather than companies, which means they fall outside ASIC's jurisdiction and face only state-based oversight instead of comprehensive federal supervision. This regulatory gap has allowed conduct issues to persist without the level of scrutiny that would apply to other major Australian businesses operating in similarly sensitive domains.
The initiative represents a belated response to recommendations that have accumulated from multiple parliamentary inquiries over the past several years. The 2023 PwC tax leaks scandal, in which the firm shared confidential government policy details with clients to secure work, prompted official investigations that generated sweeping recommendations for reform. Most of those recommendations have languished without implementation. Adding to the pressure, KPMG currently faces serious allegations that it shared confidential information belonging to prospective clients with private companies bidding for auditing contracts, demonstrating that misconduct within the sector remains an active problem rather than a historical aberration.
The Big Four's initial public responses suggest a strategy of cautious engagement rather than outright opposition. Deloitte welcomed the release of the Treasury options paper and expressed readiness to engage constructively on proposals that would strengthen professional trust. EY Oceania's chief executive David Larocca indicated support for many of the outlined options. PwC characterized the consultation as an important opportunity to contribute to industry confidence-building, noting that the firm has undertaken significant internal transformation in recent years. KPMG did not immediately respond to requests for comment, a stance that may reflect the heightened scrutiny the firm currently faces due to its whistleblower allegations.
The regulatory comparison with overseas jurisdictions provides important context for understanding the Australian position. The Treasury paper explicitly drew comparisons with how the Big Four are regulated in Britain and the United States, suggesting that Australia's current framework lags behind international standards. This positioning appeals to the government's desire to align Australian regulatory practice with comparable advanced economies while addressing the specific vulnerabilities that have emerged in the local context.
For Malaysian readers and Southeast Asian observers, the Australian experience carries instructive lessons about how regulatory capture and insufficient oversight of major professional services firms can accumulate into systemic risks. The Big Four operate globally and maintain significant operations throughout Asia-Pacific, including Malaysia. The structural decisions Australia makes about how to regulate these firms may influence similar policy conversations in other regional jurisdictions. Moreover, the prevalence of audit and consulting conflicts of interest is not uniquely Australian—these structural problems exist wherever the Big Four operate, raising questions about whether Southeast Asian regulators should similarly examine their own oversight frameworks.
The consultation period will run until August 12, during which time the firms and professional bodies will have opportunity to submit formal responses. However, there is growing political momentum behind regulatory action. Barbara Pocock, a Greens senator who has long advocated for tighter oversight of the accounting profession, framed the moment as one demanding urgent implementation rather than extended deliberation. She characterized the Big Four's current treatment as unduly preferential compared to other Australian businesses and called for them to be brought under standard business regulation like their peers.
The depth of potential structural change being contemplated suggests the Australian government views the current situation as unsustainable. Breaking up the Big Four would represent the most aggressive option, fundamentally altering business models built over decades. Even the less disruptive alternatives—operational separation or partnership size restrictions—would require significant reorganization and would reshape competitive dynamics within the industry. The Treasury process of evaluating options suggests policymakers are seriously weighing whether targeted reforms can restore legitimacy to the profession, or whether more fundamental structural intervention has become necessary.
