OECD Secretary-General Mathias Cormann stands to have made substantial gains from secretive share dealings with the man who was CEO of PwC Australia for the entire tax leaks affair.

Former Australian Finance Minister Mathias Cormann — now the boss of the OECD — went to work for the former CEO of PwC Australia almost immediately after leaving office.

Stolen government tax policy data was shared between two top-level groups of PwC's controversial “transfer pricing” division.

Disgraced consultancy PwC’s attempts at redemption have failed spectacularly, with a Senate inquiry rejecting its internal “investigations” into the tax scandal.

The “Indigenous” arm of disgraced consultancy PwC has been given $121,000 to map “government programs and policies”. 

The ATO has opened the door to PwC being stripped of its tax agents licence, rejecting suggestions it's “too big to fail”.