The PwC tax scandal shocked Australia, but the issues with consulting giants are bigger than just one firm.

Four Corners investigates the revolving door of staffers who’ve moved between the likes of EY, Deloitte and federal government departments. Whistleblowers also expose how KPMG, one of Canberra’s biggest clients, got cosy with Defence.

Broadcast as Shadow State on ABC iview on 6 August 2023 and ABC TV on 7 August 2023.

Four Corners is Australia’s premier investigations documentary series.

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EDITOR'S NOTE (August 7, 2023): Following publication of this story, KPMG told Four Corners it investigated various claims made by a former contractor in 2019 and there was no evidence to support over-billing of Defence.