California Billionaire Tax Heads to November 2026 Ballot at 31% Win Odds
In brief
- California's 2026 Billionaire Tax Act imposes one-time 5% wealth tax on state billionaires, targeting 200–255 residents
- Proponents estimate measure could raise $100 billion to offset federal cuts to Medi-Cal and education
- Governor Newsom and opponents warn tax could trigger wealthy resident departures and job losses
- Prediction markets price measure at 31% pass probability, up from 28% week prior
Revenue and intent
Proponents estimate the measure could generate approximately $100 billion in revenue. The tax aims to offset federal cuts to key public services, including Medi-Cal and education. The billionaire tax proposal is backed by the Service Employees International Union–United Healthcare Workers West, a major union representing healthcare workers in the state.
Opposition and market outlook
Governor Gavin Newsom opposes the billionaire tax proposal. Opponents warn the measure could trigger the departure of wealthy residents and job losses. The measure's outcome remains uncertain due to various political and economic factors.
Market pricing indicates a 31% probability of the tax passing, up from 28% a week ago. That uptick reflects shifting sentiment in prediction markets, though the low odds still suggest skeptics outnumber backers. Voters will decide the proposal's fate in November.
