The proponent of this plan mentions coordination among all nations - and I understand many nations won’t sign on - but enforcement is another. The shitweasels among those 200 billionaires would get busy hiding assets, so an infrastructure of financial surveillance must try to keep up with their maneuvering.

this is a big deal. i am testimony to that if you goto school hungry, you cant learn. i was also a grouch.
ca has one too also.

They have a special tax on incomes over $1M. That's an income tax.

Brasil's proposing a wealth tax. You have $2B in real estate just sitting there because you like visiting it once a year but make $50k/year in income--you'd pay an income tax on the $50k income and a 2% tax on the $2B non-income possessions.

Did a quick calculation. I'm paying around 9% of my annual income in income tax (plus FICA, unemployment insurance, property tax, sales tax, etc.) but all told around paid 0.70% of my income for f/y 2023 + "wealth"--mostly in the form of a house and retirement accounts.