California Secretary of State Shirley Weber announced Wednesday that a proposal to raise taxes on the state's wealthiest residents has qualified for the November ballot after her department verified the required number of signatures submitted by organizers.

The so-called billionaire tax, backed by Service Employees International Union-United Healthcare Workers West, would implement a one-time 5% tax on the assets of Californians whose net worth exceeds $1.1 billion. The measure would also impose a smaller tax on individuals with net worth between $1 billion and $1.1 billion. Both taxes would apply retroactively to anyone living in the state as of January 1, 2026.

The proposal requires organizers to decide by June 25 whether they want to move forward with placing it on California's ballot.

What the Right Is Saying

Governor Gavin Newsom, widely viewed as a potential 2028 presidential contender, has publicly opposed the billionaire tax. His administration has argued that such taxes could accelerate departures of wealthy residents and successful businesses from California.

Former Health Secretary Xavier Becerra, who is currently the leading candidate to succeed Newsom as governor, also opposes the measure. He has expressed concern about its potential impact on California's economic competitiveness.

Critics within the business community have warned that a tax targeting billionaires could send a negative signal to entrepreneurs and investors considering California as a place to establish or grow companies. They argue that wealthy residents may relocate to states with more favorable tax environments, potentially reducing overall state revenue over time.

Some Democratic lawmakers have also raised objections to how the revenue would be allocated, particularly given that 90% is directed toward healthcare while education and food assistance programs receive only 10%.

What the Left Is Saying

Representative Ro Khanna of California, who has been mentioned as a potential future presidential candidate, is among those supporting the initiative. He argues that taxing extreme wealth would help address income inequality in the state.

Billionaire activist Tom Steyer, who ran unsuccessfully for governor, has also backed the effort, saying it represents a necessary step toward ensuring wealthy residents contribute their fair share to public services.

Proponents argue the tax would help offset state budget shortfalls resulting from Medicaid cuts included in legislation President Donald Trump signed into law last year. They note that 90% of revenue generated by the measure would go toward healthcare programs, with the remaining 10% split between education and food assistance.

Healthcare workers' unions have been central to the coalition pushing for the measure, arguing that increased funding for medical programs is essential as federal support declines.

What the Numbers Show

The proposal targets approximately 100 individuals estimated to meet the $1.1 billion net worth threshold in California, according to data cited by supporters of the measure.

Revenue projections from proponents suggest the one-time tax could generate between $20 billion and $30 billion based on current wealth valuations among California's ultra-high-net-worth residents.

California's general fund budget faces an estimated shortfall of approximately $10 billion following federal Medicaid reductions included in recent federal legislation.

The state's top 1% of earners already pay a disproportionate share of California income taxes, contributing roughly 46% of total personal income tax revenue in recent fiscal years.

The Bottom Line

The billionaire tax measure represents one of the most significant policy questions facing California voters this fall. Its fate could shape the state's fiscal landscape for years to come.

Opponents face pressure from within their own party to find an alternative that addresses budget gaps without risking wealthy resident flight. Supporters argue the moral imperative to address inequality outweighs economic relocation concerns.

The June 25 deadline gives organizers a narrow window to confirm their commitment before the measure officially appears on the November ballot. If they proceed, California voters will decide whether to approve what would be one of the most aggressive wealth taxes attempted by any U.S. state.