Deloitte Australia admits misuse of information as PwC scandal widens

International Tax Review is part of Legal Benchmarking Limited, 1-2 Paris Garden, London, SE1 8ND

Copyright © Legal Benchmarking Limited and its affiliated companies 2026

Accessibility | Terms of Use | Privacy Policy | Modern Slavery Statement

Deloitte Australia admits misuse of information as PwC scandal widens

Gdansk, Poland - May 8, 2022: Logo and sign of Deloitte, multina

Another ‘big four’ firm has been dragged into claims of impropriety as a Senate inquiry into consulting services continues.

Deloitte Australia has told the Senate it misused information from the Australian government last year, but the firm refused to provide more details owing to concerns over client confidentiality.

The firm maintained, however, that the confidential information was not misused for commercial gain.

“Any matters in relation to the misuse of confidential government information would be investigated in line with our normal processes,” said Deloitte in the Friday, July 14, Senate hearing on consulting services.

“Consequences would vary depending on the findings of our internal investigations and, as with any misconduct, these consequences include disciplinary actions in accordance with our policies, which apply to both partners and employees,” the firm told the Senate committee.

The Senate investigation into consulting services comes amid the ongoing PwC Australia tax leaks scandal, in which former partner Peter-John Collins was found to have shared confidential government information with colleagues and clients.

Deloitte Australia also confirmed there was misuse of confidential or proprietary information on nine occasions in FY2021/22, but that this was down from 18 times the previous financial year.

At the hearing, Deloitte Australia also provided the Senate with details about two cases of conflicts of interests involving government contracts. This included work with the Australian National Audit Office (ANAO) and the Home Affairs Department.

“It was identified in August 2022 that Deloitte had not sought pre-approval from the ANAO to provide the service, as required under their independence and conflicts management policies,” the firm told the Senate.

Deloitte acknowledged that the Home Affairs Department terminated a contract with the firm over an undisclosed conflict of interest. However, the firm told the Senate it was not aware of any other “significant conflict-of-interest matters relating to government work”.

The Senate inquiry will hear from consultancy Accenture and big four firm EY Australia next as the two-day hearing continues until tomorrow, July 18. Meanwhile, management consultancy firm McKinsey has declined to appear before the committee.

more across site & shared bottom lb ros

More from across our site

The recent spree of firm mergers and acquisitions proves that geographic scale is the name of the game
The big four spin-off firm becomes Taxand’s second UK member; in other news, Haynes Boone launched a UK tax practice
Stephanie Pantelidaki’s economic expertise will give Norton Rose Fulbright’s other teams ‘extra firepower,’ she says
Mada has opened simultaneously in Paris and Dubai with an eight-lawyer team from Trinity International
PwC will continue to provide indirect tax services as part of the deal; in other news, the CJEU addressed the VAT treatment of TP adjustments
The arrival of Renan Ozturk and his team from A&M Tax introduces a unique proposition within the Middle East legal market, the firm said
The deal, reportedly worth $400m, will add Svalner Atlas’s 50-partner Nordic and Benelux presence to Ryan’s rapidly growing global footprint
The combined firm, which comprises over 1,400 lawyers, will boast robust tax practices in both the UK and US
Cascading tax reform, bullish foreign investment and vigorous TP audits have made Italy’s tax advisory market dynamic and stiffly competitive
As ITR data reveals that 2025 saw more than double the amount of private client hires than 2024, it seems firms are jostling for position
Gift this article