Facebook probably don't pay any tax on the profit they make from Australian companies advertising on Facebook.
One way is dont give the Australian companies who advertise on facebook or any other overseas big tech a tax deduction.
Australian consumers pay for the advertising in the price they pay for the goods they buy and facebook want our news content for nothing.
And pay no tax on the advertising revenue.
See how far any wage earner will get not paying tax, the tax department will go after any one they think might be putting in a dud receipt but not after the big tech.