One of the world's biggest accountancy firms became mired in a tax scandal after its chairman refused to share a tax leaks investigation with Australian parliament

PwC chairman refuses to share tax leaks scandal investigation with Australian parliament. Firm cites legal professional privilege after request for copy of report but provides more detail about scope of investigation. Firm says it will not reveal scope of probe into leaked tax payments to Australian parliamentarians. Pwc chairman refused to share details of investigation with parliament.

PricewaterhouseCoopers used secrets to help clients in Australia and the US avoid tax. The scandal has forced resignations and threatens contracts worth hundreds of millions. PwC is one of the world’s biggest accountancy firms and one of its biggest in the world.