PwC Australia will appoint outsiders to its board and publish audited financial statements as part of a governance overhaul to bring the partnership closer to public company standards following a scandal over the leak of confidential tax documents.

An independent review into governance, culture and accountability at consulting giant PwC has singled out the "excessive power" of the firm's chief executive and poor practices which went "unexamined and uncorrected" for years.

Embattled consulting giant PwC will today announce a major overhaul of governance, culture and accountability when it releases a long-awaited independent review into a tax leak scandal that has badly damaged the firm's reputation.

PwC Australia is implementing significant governance reforms in the wake of a scandal involving the leak of confidential tax documents.