zlacker

> 3. Potentially true but I would still set up my business in the US and just pay the tax, if I make $100m it’s $20m for the government and I rate that as a great deal to be honest.

You've described the wrong type of tax. I make $100m and 20% goes to the government is not controversial. It's my business is valued at $100m and so I pay $20m to the government regardless of how much my company is "making".

> 4. Why is a one off 20% tax going to lose founders control, this is only about companies post IPO.

Got it. So no more IPOs and every public company is about to go private.

>>kcb+(OP)
If you have 100M in unrealized capital gains it should be no big deal to sell some of those gains to cover the tax. Just convert the shares to non voting shares if you want to keep control.