What if I told you, this is already enforced in the form of tax withholding (W8-BEN) but it only affects a few countries that are considered "tax heavens".
Enforcement is easy: You enforce at the point of "exit of money". Banks can do this enforcement or at least inform the relevant authorities about certain transactions.
Enforcement is easy: You enforce at the point of "exit of money". Banks can do this enforcement or at least inform the relevant authorities about certain transactions.