David Ryder is right, most of that lost 12.4 billion dollars is being shifted offshore, by the Federal Government, not by multinationals in the Private Sector.
Futhermore it is not illegal to accept cash as payment for goods and services when it is offered as opposed to being demanded. I am an Age Pensioner and choose to pay in cash to support local businesses that are being driven out of their livelihood by the escalating mal-administration of the Income Tax Act that is now full of weasel words. IT IS ILLEGAL to Demand Crypto payment for a pound of potatoes when it forces the buyer, being unable to buy, to go without food, goods and Services.