Australia's Big Four audit firms face potential break-up over repeated ethics scandals
Australia's government is proposing stricter regulation of the country's largest audit firms, including potential break-ups, after a series of ethical failures at KPMG, PwC, EY and Deloitte.
Australia's federal government has released a consultation paper proposing sweeping new regulations for the country's "big four" audit and consulting firms — KPMG, PwC, EY and Deloitte — following a string of scandals involving misuse of confidential client information.
The proposals include stricter oversight, heavier penalties, and the potential break-up of the firms themselves. A Treasury statement in the consultation paper was unusually direct: "In recent years, we have seen behaviour from large accounting, auditing, and consulting firms in Australia that is not fair and honest."
A pattern of ethical lapses
The latest scandal emerged this week when two junior EY employees were dismissed for allegedly accessing Prime Minister Anthony Albanese's private bank information while working as contractors at Commonwealth Bank.
That incident follows more serious admissions from KPMG that its senior partners had accessed confidential client information to help them bid for other companies' work. The pattern stretches back further: PwC admitted three years ago to using confidential government information about new corporate tax avoidance rules to help other corporate clients dodge those same rules. That admission triggered a federal inquiry that resulted in 40 recommendations for action in 2024.
The repeated breaches across multiple firms have exposed what regulators describe as a systemic failure in how Australia's largest audit firms are governed.
Licensing firms, not just individuals
A central plank of the government's new proposal is to begin regulating audit firms as entities — not just the individual auditors who work for them. This addresses what critics have called a critical gap: Australian regulators have struggled to hold the firms themselves accountable for culture and senior management failures.
According to the Treasury paper, the government proposes that all audit firms, including partnerships, be licensed by the Australian Securities and Investments Commission (ASIC). These licences would impose audit quality management, ethical and governance obligations as a condition of operation.
ASIC would gain enforcement powers to take action against audit firms for breaching licence conditions. Options include imposing additional conditions, issuing infringement notices, or revoking a firm's licence altogether. The government is also proposing a new penalty for licence breaches aimed at the biggest four firms, capped at $910 million.
The licensing approach mirrors a model already used for financial services businesses in Australia.
The break-up question
A more radical option outlined in the consultation paper is the potential forced break-up of the big four firms. The Treasury paper begins exploring this possibility but the full details have not yet been made public in the reporting available.
A resource question remains
One significant uncertainty looms over the proposed reforms: whether Australia's corporate watchdog will have the resources to effectively enforce them. Even with tougher rules and higher penalties in place, ASIC's capacity to adequately audit the auditors remains unclear. This question has become more urgent as the scale of compliance failures across multiple firms has become apparent.
The consultation paper represents a shift in regulatory approach after years of scandals and a federal inquiry that found systemic problems in how the profession polices itself. Whether the proposals will be enacted as stated — and whether they will be adequately enforced — will likely emerge from the government's response to feedback on the consultation paper.