How would they enforce it?
How would they enforce it?
(And even then, banks can be touchy enough that you still can't get any ActualMoney out of Bitfinex.)
So are many other kinds of financial transactions, there hasn't been a real problem enforcing that. That's basically the IRS's job.
I was talking about unregulated securities offerings, where I'd say cryptocurrency DOES help. However, I see OP invoked the IRS for some reason- I agree cryptocurrency doesn't help much for tax evasion.
You can have 10 million USD in crypto and live a normal life: pay rent, drive a usual car, etc. Nobody will notice you, not even the IRS.
If you want to move your funds in another country, you simply have to move yourself and spend them there. You can't do that with fiat.
...or you could just pay 20% (or whatever) cap gains taxes and immediately use your 8 million USD in the US- That seems like the preferable option.