All most fun. And proof that criminals are idiots of course. The only surprising thing here is that Daddy was a senior tax officer.
Basics – set up as a payroll processing company. Gain contracts to do the work.
Then don’t pay the correct PAYE.
I mean, yes, there’s more, but that’s the basics.
At which point criminals are idiots. The taxman is going to come looking for this money at some point. So you don’t spend it on cars and properties and watches and so on. Most certainly not in the tax jurisdiction you’re ripping off you don’t.
Suitcases of cash in some jurisdiction with no extradition treaty is the way to go.
Oh, and skipping just as the first letters start arriving asking where the PAYE is.