Increasing the GST to 12.5 percent could raise more than $14 billion a year, new modelling shows.
Consulting firm PwC has also found expanding the consumption tax to five exempt categories - fresh food, health, education, childcare and water and sewage - would raise another $21 billion.
Releasing its modelling on July 7, PwC said tax reform would be critical to recovering from the coronavirus-led economic recession, arguing the GST was ripe for the picking.
Daniel McCulloch in Canberra
