California Governor Gavin Newsom is pushing a retroactive billionaire tax targeting the roughly 220 billionaires residing in California in 2025, ignoring that these individuals are the most financially mobile and can live anywhere. Expecting them to remain in the state as if they will happily and willingly hand over even more of their wealth surely must be facetious.
SEIU is sponsoring the “2026 Billionaires Tax Act.” The measure, recently listed on the Attorney General’s website, would impose a one-time 5% tax on individual wealth exceeding $1 billion, Marc Joffe wrote for the Globe this week. He explains the measure and more:
Although the tax would be levied based on 2026 net worth, it would apply to billionaires who resided in California in 2025, so theoretically it could not be avoided. Of course, billionaires are well equipped to defend themselves in court, so the constitutionality of this unprecedented tax will be rigorously tested.
Proponents assert that the measure would not cause billionaires to flee the state because of the one-time nature of the tax. Unlike federal wealth taxes floated by Bernie Sanders and Elizabeth Warren, the SEIU tax would not be applied each year.
But the flaw in this argument is obvious: if the state could impose a wealth tax once, it could do so again and again. So, yes, billionaires might well leave if this measure passes.
Why are California businesses and residents fleeing the once-Golden State in droves? We’ve asked and answered this question many times.
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