[jhall1468]

Literally everything you mentioned isn't a loophole, it's tax fraud. Tax loopholes are what they do within a single jurisdiction to avoid taxes. What you're suggesting is transferring money from one jurisdiction to another, which can't be done tax-free.

[tim333]

On example under UK law is if you work abroad for a year and deemed non UK tax resident then you could receive income tax free during that period. The K2 scheme that Jimmy Carr took part in got a lot of coverage https://en.wikipedia.org/wiki/K2_(tax_scheme)