Snapshot from Jul 19, 2026 at 14:14 UTC. For live data and tracking: View Live
Events / Regulatory / Australia Considers Big Four Breakup
Regulatory regulatory reform

Australia Considers Big Four Breakup

Analysis based on 10 articles · First reported Apr 20, 2026 · Last updated Jul 01, 2026

Sentiment
50
Attention
6
Articles
10
Market Impact
General
Live prominence charts, article sentiment distribution, and event development timeline available on the Ergen Dashboard
Market Impact

The potential break-up or operational separation of the Big Four accounting firms in Australia could significantly impact the professional services market, leading to increased competition and potentially lower fees for clients. Investors in related sectors might see shifts in market dynamics as firms like Deloitte, EY, KPMG, and PwC adapt to new regulatory environments. The increased oversight by the Australia — Australian Securities and Investments Commission could restore investor confidence in the integrity of financial reporting and consulting services.

accounting consulting auditing
Event Summary

The Australian government is considering significant regulatory reforms for the Big Four accounting firms—Deloitte, EY, KPMG, and PwC—following a series of high-profile scandals, including the PwC tax leaks and KPMG's alleged sharing of confidential information. Proposals outlined by the Australia — Treasury (Australia) department include structural separation, forcing firms to split their audit and consulting arms, or operational separation, preventing them from offering both services to the same client. The government is also examining reducing the cap on partners from 1,000 to 400 and bringing these firms under the supervision of the Australia — Australian Securities and Investments Commission, as they are currently regulated as partnerships under state laws. Assistant Treasurer Daniel Mulino highlighted that the firms' conduct has undermined trust and exposed gaps in Australia's regulatory framework. Consultation on these proposals is open until August 12.

Key Actions
100 Australia considered breaking up
85 Australia — Treasury (Australia) outlined proposals
80 PwC shared confidential policy
75 Daniel Mulino stated conduct exposed gaps
70 KPMG shared confidential information
60 Barbara Pocock called for urgent action Australia — Australian Labor Party
50 Deloitte welcomed release
50 EY supported options
40 PwC said paper was opportunity
Entities Involved
cnt
Australia
Australia's government is considering significant regulatory reforms for the accounting sector to address past scandals and enhance market integrity.
Importance 100.0 Sentiment 50.0
priv
PwC
PwC is one of the Big Four accounting firms in Australia, previously involved in a tax leaks scandal that triggered parliamentary inquiries. The firm is undergoing significant transformation and welcomes the opportunity to contribute to strengthening trust in the industry.
Importance 90.0 Sentiment -40.0
priv
KPMG
KPMG is one of the Big Four accounting firms under scrutiny in Australia, currently embroiled in a scandal over alleged sharing of confidential company information. The firm faces potential regulatory changes.
Importance 90.0 Sentiment -30.0
priv
EY
EY is one of the Big Four accounting firms in Australia that may be subject to new regulations, including potential separation of audit and consulting services. EY Oceania CEO David Larocca expressed support for many of the proposed options.
Importance 80.0 Sentiment 20.0
priv
Deloitte
Deloitte is one of the Big Four accounting firms facing potential structural or operational separation and increased regulation in Australia due to past conduct. The firm welcomes the opportunity to engage constructively on measures to strengthen trust.
Importance 80.0 Sentiment 20.0
govactor
Australia — Treasury (Australia)
The Australia — Treasury (Australia) department outlined proposals in a paper for regulating the Big Four accounting firms, including potential break-ups and caps on partnerships, in response to industry scandals.
Importance 70.0 Sentiment 50.0
govactor
Australia — Australian Securities and Investments Commission
The Australia — Australian Securities and Investments Commission may gain increased supervisory authority over the Big Four accounting firms, which are currently regulated as partnerships under state-based laws.
Importance 70.0 Sentiment 50.0
per
Daniel Mulino
Assistant Treasurer Daniel Mulino stated that the recent conduct of large accounting firms has undermined trust and raised questions about market integrity, advocating for stronger regulatory frameworks.
Importance 60.0 Sentiment 50.0
per
Barbara Pocock
Barbara Pocock, a Greens senator, has campaigned for tougher regulation of the accounting sector and called for urgent action from the Labor government to regulate the Big Four like other Australian businesses.
Importance 40.0 Sentiment 60.0
polparty
Australia — Australian Labor Party
The Australia — Australian Labor Party government is being urged by Senator Barbara Pocock to implement tougher regulations on the Big Four accounting firms, building on recommendations from previous inquiries.
Importance 40.0 Sentiment 50.0
Relationships
Australia related ↔ PwC
Australia related ↔ Australia — Australian Securities and Investments Commission
Australia related ↔ Australia — Australian Labor Party
PwC related ↔ KPMG
PwC related ↔ EY
PwC related ↔ Deloitte
KPMG related ↔ EY
KPMG related ↔ Deloitte
EY related ↔ Deloitte
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