California Voters to Decide on Billionaire Tax in November

California voters will decide in November whether to approve a controversial one-time 5% tax on individuals with net worth exceeding $1 billion. The initiative, backed by the Service Employees International Union Healthcare Workers West (SEIU-UHW), would apply retroactively to those living in California as of January 1, 2026, and aims to generate $100 billion primarily for funding the state's Medicaid system after federal cuts.

California Secretary of State Shirley Weber officially certified the measure for the Nov. 3 ballot on Thursday evening. Proponents argue the tax is necessary to stabilize healthcare systems threatened by federal cutbacks, while opponents warn it could push wealthy residents out of state and create budget instability.

The proposal has drawn significant opposition from Democratic Governor Gavin Newsom and a broad coalition including healthcare, education, public safety, housing, business, and labor leaders. Newsom argues the tax would drive away ultra-wealthy individuals whose income tax contributions are crucial to California's volatile budget. Tech moguls like Google co-founder Sergey Brin have already moved assets out of state or threatened to do so in response.

Brin donated at least $82 million to an organization funding efforts to invalidate the proposed billionaire tax. The nonpartisan Legislative Analyst's Office estimates that while the proposal would generate tens of billions initially, income tax revenues could subsequently decline by hundreds of millions annually. Two 'poison pill' measures that could void the tax if approved also qualified for the ballot.

Governor Newsom has called for a national minimum tax on billionaires and a federal fund that would give every American a stake in the wealth created by artificial intelligence. He argues that the fight over taxing the ultra-wealthy should be undertaken at the federal level rather than by individual states, as billionaires can simply relocate to avoid state taxes. Newsom also objects to the California billionaire tax because it mainly funds Medicaid and not other needs such as public schools, women's health clinics, housing, and child care.

The debate comes as Democrats focus on affordability, income inequality, and federal cutbacks to government programs. Support for such initiatives often declines as elections near, and if passed, the measure is likely to face legal challenges. The proposal has divided liberals, with Sen. Bernie Sanders supporting it while Newsom opposes it due to concerns about its impact on California's budget.