The Australian government has signalled it is seriously considering radical structural reforms to the country's dominant accounting firms, with the Treasury department releasing a consultation paper on Wednesday outlining potential interventions that could fundamentally reshape how Deloitte, EY, KPMG and PwC operate. The timing reflects growing frustration with repeated misconduct by these firms, which have dominated Australia's professional services landscape for decades while operating under regulatory frameworks that many observers argue are outdated and insufficiently stringent.
Assistant Treasurer Daniel Mulino framed the government's concerns in stark terms, acknowledging that recent conduct by major accounting, auditing and consulting firms has violated basic standards of fairness and honesty. Such behaviour, he argued, has corroded the institutional trust these organisations depend upon while raising fundamental questions about whether existing regulatory mechanisms can adequately safeguard market integrity. The Treasury paper explicitly identifies gaps in Australia's current regulatory architecture by drawing comparisons with the stricter oversight regimes operating in Britain and the United States, suggesting that Australian safeguards have fallen meaningfully behind international standards.
The most dramatic proposal under consideration is structural separation, which would require these firms to divest themselves of either their audit divisions or their consulting operations, preventing them from offering both services under a single corporate umbrella. A less aggressive alternative involves operational separation, which would stop firms from simultaneously providing audit services and non-audit work to the same client. These options directly address what many regulators identify as a fundamental conflict of interest: when the same firm both audits a company's accounts and sells that company consulting services, the auditor has financial incentives to maintain the client relationship that may compromise the independence and rigour of the audit function.
Additionally, the Treasury is examining whether to reduce the maximum partnership size from 1,000 partners to 400, bringing accounting firms into alignment with restrictions already applied to other professional services sectors including law. This cap would effectively constrain the scale at which individual partnerships can operate, potentially fragmenting some of the largest practices and reducing the concentration of power within single entities. Such changes would represent a fundamental shift in how Australia's professional services industry is structured, mirroring regulatory philosophies that other developed economies have adopted to address systemic risks.
The catalyst for this regulatory reckoning lies in a series of high-profile scandals that have demonstrated the inadequacy of existing oversight. Most prominently, PwC faced severe criticism in 2023 after revelations emerged that the firm had shared confidential government policy information with prospective private-sector clients as part of pitches to win auditing contracts. This breach of trust struck at the heart of professional ethics and public sector governance, essentially weaponising privileged information to advance commercial interests. More recently, KPMG has found itself embroiled in similar allegations that it shared confidential company information with prospective clients to strengthen bids for audit work, revealing what appears to be a systemic problem rather than an isolated incident.
A critical regulatory gap has enabled this misconduct to occur: the Big Four operate as partnerships rather than incorporated companies in Australia, which means they fall outside the supervision of the Australian Securities and Investments Commission (ASIC), the nation's primary corporate regulator. Instead, they remain subject to state-based laws that provide considerably less rigorous oversight and fewer mandatory disclosure requirements. Mulino has indicated that centralising regulatory authority under ASIC is among the strongest options the government is considering, effectively bringing these partnerships within the federal regulator's purview and subjecting them to the same corporate governance expectations that apply to publicly listed companies and other major corporations.
The proposed reforms are not particularly novel: they largely echo recommendations made by parliamentary inquiries that were themselves triggered by the PwC scandal. However, most of those earlier recommendations have languished without implementation, prompting frustration among legislators and public interest advocates. Greens Senator Barbara Pocock, who has been a vocal advocate for tighter regulation of the accounting sector, has called for urgent action, characterising the Big Four as having received special treatment compared to other Australian businesses and demanding that the government finally act on the solutions it already knows are necessary.
The Big Four have adopted a cautious, diplomatic stance toward the consultation process. Deloitte welcomed the Treasury options paper and expressed willingness to engage constructively with measures aimed at strengthening trust in the profession. EY Oceania's chief executive David Larocca indicated support for many of the proposals, while PwC framed the consultation as an important opportunity to contribute to rebuilding industry credibility, noting that the firm has undergone significant transformation in recent years. KPMG, facing the most acute reputational damage from current whistleblower allegations, did not immediately provide comment on the Treasury paper.
For Malaysian and Southeast Asian observers, the Australian debate carries significant implications. As international firms headquartered in Britain and America increasingly expand their operations throughout Asia-Pacific, the regulatory approach Australia adopts will likely influence how governments and regulators across the region think about professional services oversight. Malaysian investors and businesses frequently engage with the Big Four for audit and consulting services, and any structural changes in Australia will almost certainly reshape how these firms operate globally. Moreover, the willingness of a developed regulatory system to fundamentally restructure an entire sector demonstrates that even mature financial markets can experience governance failures serious enough to warrant radical intervention.
The consultation period for these proposals runs until August 12, giving the Big Four and other stakeholders a window to make submissions to the Treasury. The government is expected to develop its final policy position based on feedback received during this process, though the momentum behind reform appears substantial. The fact that an options paper has reached public circulation suggests that the Albanese government is moving beyond abstract discussion toward concrete legislative possibilities, making it likely that some version of these reforms will eventually become law. Whether Australia opts for full structural separation, modified operational restrictions, or primarily regulatory centralisation under ASIC remains to be determined, but the trajectory clearly points toward significantly enhanced oversight and constraints on how the Big Four can structure their businesses.
