...to determine who is eligible for the tax and then how much they owe?

Being a one time tax, does that mean it could never be imposed again on future billionaires? Why not?

not to mention teachers pension funds ( really all union pensions ).

The vast majority of billionaires are worth "billions" only because of unrealized cap gains in the stock market. They rarely sell those shares ( thus avoiding either income tax or capital gain tax ). To pay the wealth tax they will need to sell something like 8% of their stock to pay a 5% wealth tax. Well, doesn't sound bad, right? Except putting 8 percent of the largest tech companies... all in the same year, possibly in the same quarter, back into the market will cause an enormous sell pressure on the entire tech sector... and no one will want to be "the last ones holding the bag' so now there will be a crash or at least a "major correction" ( the long boom is finally over ). Thus watch your retirement accounts lose, what... 10%... maybe 20%? Could be more.

All to collect money from the remaining billionaires that DID NOT SIMPLY MOVE to another state ( often possibly taking their companies and many employees with them ).

Brilliant.

Find a different way to tax billionaires. not this way. And, no, income tax won't work either. Billionaires do not have income ( at least the smart ones do not ).

Luxury tax... maybe. but again, needs to at least be nation wide ( or really world wide ).

That is where you impose restrictions on anyone who moves from the state solely because they don't want to pay the taxes. There are plenty of people just waiting to take over those potentially vacated businesses and industries, they just don't want us to know that their hold on everyone and everything exist only because we allow it to.

We really need to stop listening to billionaires and their cronies when we are discussing a more equitable society.

Like, we need to stop listening right now.

It will never happen, of course. Financial greed is the name of the game in this nation today, and anyone who does not like it can either leave or die.

Very equitable.

OK... so now billionaires, by the condition of having a certain net worth, are now prevented from moving?

Why stop at billionaires, why not anyone with a net worth of $1M?

Good luck with this one, federal law being in supremacy over state law and everything.

I am all in favor of getting billionaires to pay more to the federal and state tax collectors. Between the feds and the state I know I pay 50 percent of every dollar I make... and close to 59 percent of every dollar I spend on stuff in federal, state, property and sales taxes. It would be nice if the people with a higher net worth than me also contributed the same percentage. I am fine with paying my share... but I have never owned a house in California, never had children here ( although I have a daughter, I did not adopt her until after I could no longer claim her as a dependent ). I feel the government should NOT be in the business of social engineering as far as lifestyle choices ( own v rent, children v. no children, etc ). We should have a progressive tax system, but that tax system should be fair and it should be universally imposed ( not state by state or city by city ). We all need to pay for the common good.

Now come up with a way to do it. One that cannot be avoided by clever tax people ( we really should eliminate tax people - either from the IRS side or the tax preparation / tax lawyer side, completely useless people that do not contribute a damn thing to society ).

Tax our (AI) JOB CREATORS!