Large listed companies have been issued a firm directive to reveal just how reliant they are on the Morrison government's $70 billion JobKeeper program and other wage support packages around the globe as they prepare for the trickiest reporting season in recent years.

Delivering profit numbers to the market was already a challenge as two major accounting changes came into effect this year but the COVID-19 crisis has added further complications, prompting the corporate watchdog to inform companies that despite the uncertainty, it will be expecting increased disclosure.