The PwC tax scandal involved sharing confidential government tax plans with clients such as Google and Facebook.

This scandal has caused significant upheaval within PwC and raised concerns about the involvement of the tax office.

A criminal investigation has been initiated, and those involved have faced bans.

A Senate committee is set to release its final report on the matter this week.

The Australian Taxation Office (ATO) has faced scrutiny for allegedly attempting to hinder the investigation.

Tensions have escalated between the ATO and the Tax Practitioners Board (TPB) over data access and investigation handling.

The TPB has taken actions, including banning a former PwC partner, which have led to internal reviews and complaints.

The scandal highlights the need for proper regulation and robust support for regulators in the consulting industry.