California Billionaire Tax Initiative Secures Ballot Qualification After Signature Surge

On Monday, the coalition backing the California Billionaire Tax announced that it has filed more than 1.5 million signatures, nearly double the 875,000 needed to place the California Billionaire Tax Act on the November state ballot. The proposal would impose a one-time 5 % wealth tax on California residents with a net worth of $1 billion or more. Proponents say the revenue would fund local hospitals, food-aid programs, and public-education initiatives.

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The tax drive emerges amid a fiscal shortfall created by the Republican-passed One Big Beautiful Bill Act, which eliminated state spending on Medicaid and the Supplemental Nutrition Assistance Program (SNAP). State officials have highlighted the need for new revenue streams to sustain essential services, prompting the coalition to frame the billionaire tax as a remedy for the budget gap.

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The effort is organized by the California Billionaire Tax coalition, which includes labor groups such as the Service Employees International Union-United Healthcare Workers West (SEIU-UHW) and Teamsters Local 396. National figures have taken public positions: Sen. Bernie Sanders (I-VT) endorses the measure, while Gov. Gavin Newsom (D-CA) has voiced opposition.

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The coalition’s signature collection surpasses the required threshold by approximately 625,000. A University of California, Berkeley poll conducted last month shows support for the tax at roughly two-to-one over opposition among likely voters. The Institute on Taxation and Economic Policy estimates the tax would generate $100 billion over five years, sufficient to cover the budget shortfall attributed to the One Big Beautiful Bill Act.

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• Gov. Gavin Newsom has publicly opposed the billionaire tax, arguing that the approach could deter investment and undermine California’s economic competitiveness.

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• Sen. Bernie Sanders has praised the proposal, describing it as a “fair contribution from the ultra-wealthy to fund critical public services.”

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Critics, led by Gov. Newsom’s office, contend that a one-time wealth levy may create legal challenges and could set a precedent for future tax measures targeting high-net-worth individuals. They also warn that the tax could encourage capital flight, potentially harming the state’s tax base.

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• “When funding is cut, it brings a world of pain.” — Mayra Castañeda, ultrasound technologist, SEIU-UHW

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• “We deserve to be able to afford to see a doctor when we’re sick… In a nation as rich as ours, that’s the least we deserve.” — Jared Hamil, member, Teamsters Local 396

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Having cleared the signature requirement, the coalition must submit the petition to the California Secretary of State for verification. If validated, the California Billionaire Tax Act will appear on the November ballot, where voters will decide whether the one-time wealth tax proceeds. Campaigns from both supporters and opponents are expected to intensify in the weeks leading up to the election.

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