Peter Collins has had his registration as a tax agent terminated.
PwC was also found to have breached the industry’s code of conduct and must submit a compliance report to the practitioners’ board for the next two years.
TheAustralian Financial Review reported that Collins was a regular member of consultation groups set up by the Treasury and by the Board of Taxation to provide confidential advice to the government on matters that included its measures to combat international tax avoidance.
Collins,who was named tax adviser of the year by the Tax Institute of Australia in 2016,left PwC in October last year.
The board said its investigation revealed that Collins,while participating in confidential consultation with Treasury to improve tax laws,made unauthorised disclosures of this confidential law reform information to partners and staff of PwC.