California billionaire wealth tax faces likely defeat in polls

California's ambitious wealth tax proposal is tracking toward defeat at the ballot box, according to projections from major US media outlets. Proposition 40 would have imposed a 5% annual tax on the net worth of around 200 of the state's wealthiest residents, making it one of the most aggressive wealth-targeting measures attempted in the United States.

The tax was designed to generate significant revenue for healthcare programmes, with the state legislature backing the initiative as a means to address funding gaps in medical services. Proponents argued that the measure would ensure ultra-wealthy Californians contribute more equitably to public services while leaving middle-class and working families unaffected.

Opposition to the proposition has centred on concerns about implementation challenges, potential constitutional issues, and fears that the tax could prompt wealthy residents and businesses to relocate. Critics also questioned whether the revenue projections were realistic given legal complexities around taxing net worth rather than income or transactions.

The defeat of Proposition 40 reflects broader national debates over wealth taxation and the methods states should use to fund public services. Several other US states have explored similar wealth tax proposals, though few have successfully implemented them due to legal and administrative hurdles.