The accounting giant has also announced the appointment of a new chief executive in the country.
The move will allow the firm "to move forward with predictability and focus," PwC Australia said in a statement.
In January, it emerged that a former PwC Australia partner had leaked the classified information.
The ex-partner, who was advising the Australian government, had shared drafts of corporate tax avoidance laws with colleagues, who used it to pitch to potential clients. The leaks occurred between 2014 and 2017.