California Voters to Decide on Wealth Tax for Billionaires to Fund Public Health
California is set to become the first U.S. State to let voters decide whether its wealthiest residents should pay a one-time tax on their net worth to counter federal funding cuts to healthcare. The proposal, known as the California Billionaire Tax Act, has secured enough signatures to appear on the November 2026 ballot, marking a historic moment in the state’s ongoing battle to protect its public health system from sweeping federal reductions.
The measure, backed by the Service Employees International Union-United Healthcare Workers West (SEIU-UHW), would impose a 5% tax on the net worth of California’s billionaires. Proponents estimate the tax could generate “tens of billions of dollars” over five years, with 90% of the revenue earmarked for Medi-Cal, the state’s Medicaid program, and other critical health services. The remaining 10% would support CalFresh, California’s food assistance program, which has also faced federal cuts.
“The majority of Californians—and even many billionaires—recognize how reasonable and necessary this proposal is,” said Suzanne Jiménez, a spokesperson for SEIU-UHW, in a statement announcing the signature milestone. “It’s about keeping emergency rooms open and preventing businesses from closing due to healthcare instability.” The union’s campaign collected 1.5 million signatures—nearly double the 874,641 required to qualify for the ballot—reflecting widespread public support for the measure.
The Federal Cuts Driving the Proposal
The ballot initiative is a direct response to H.R. 1, a sweeping federal budget bill signed into law in early 2025 that slashed funding for Medicaid and the Supplemental Nutrition Assistance Program (SNAP). The legislation, championed by the Trump administration and Republican lawmakers, has been described by health policy experts as the “largest cut to healthcare and food assistance in U.S. History.”
According to the California Health and Human Services Agency, H.R. 1 could strip Medi-Cal coverage from up to 2 million Californians and cost the state between $2.3 billion and $5.1 billion annually in lost federal funding. The cuts would disproportionately affect low-income families, seniors, and children, many of whom rely on Medi-Cal for essential services like prenatal care, mental health treatment, and long-term care for disabilities.
For California, the stakes are particularly high. The state is home to 14.9 million Medi-Cal enrollees—more than a third of its population—and has long served as a national leader in expanding healthcare access. The federal cuts threaten to unravel decades of progress, forcing state lawmakers to either reduce benefits, tighten eligibility, or find alternative revenue sources. The billionaire tax proposal represents one of the most ambitious attempts to fill the funding gap without raising taxes on middle- or low-income residents.
How the Tax Would Work
If approved by voters, the California Billionaire Tax Act would impose a one-time 5% tax on the net worth of individuals with assets exceeding $1 billion. The tax would apply only to California residents and would be calculated based on their net worth as of a specific valuation date, likely January 1, 2027. The revenue would be deposited into a dedicated fund, with 90% allocated to Medi-Cal and 10% to CalFresh.
Proponents estimate the tax could raise between $20 billion and $40 billion over five years, though the exact figure depends on the number of billionaires residing in the state at the time of assessment. California is home to some of the world’s wealthiest individuals, including tech moguls in Silicon Valley and entertainment industry leaders in Los Angeles. As of 2026, the state had at least 186 billionaires, according to the Forbes Real-Time Billionaires List.
The tax would be structured as a one-time levy, though the ballot measure does not explicitly prohibit future iterations. This design aims to address concerns about wealthy residents relocating to avoid recurring taxes, a phenomenon often referred to as “tax flight.” However, critics argue that even a one-time tax could accelerate an exodus of high-net-worth individuals, particularly in tech-heavy regions like Silicon Valley, where many billionaires have the flexibility to work remotely.
Opposition and Concerns
Opponents of the measure, including business groups and conservative policy organizations, warn that the tax could backfire by driving billionaires—and their tax revenue—out of California. The California Chamber of Commerce has called the proposal “shortsighted,” arguing that it could destabilize the state’s economy and discourage investment. “California already has the highest income tax rate in the nation,” said Chamber President Jennifer Barrera. “Adding a wealth tax on top of that risks making the state even less competitive.”
Some economists have also raised concerns about the practical challenges of implementing a net-worth tax. Unlike income taxes, which are based on annual earnings, net-worth taxes require valuing illiquid assets like privately held companies, real estate, and art collections. This process could lead to disputes over valuations and create administrative burdens for both taxpayers and the state.
Despite these concerns, the proposal has gained traction amid growing frustration over federal inaction on healthcare funding. A 2025 poll by the Public Policy Institute of California found that 62% of likely voters supported the idea of taxing billionaires to fund public health programs, reflecting broad public appetite for progressive revenue solutions.
What’s Next for California’s Healthcare System?
If the ballot measure passes in November, the tax would capture effect in 2027, with revenue beginning to flow into state coffers shortly thereafter. However, the timeline could be delayed by legal challenges. Wealth taxes have faced constitutional hurdles in other states, including Massachusetts, where a similar proposal was struck down by the state’s Supreme Judicial Court in 2022. California’s constitution, however, includes provisions that allow voters to approve tax increases directly through ballot initiatives, which could provide a stronger legal foundation for the measure.
In the meantime, state lawmakers are exploring other ways to mitigate the impact of federal cuts. Governor Gavin Newsom has proposed a series of budget adjustments, including tapping into the state’s rainy-day fund and delaying non-essential infrastructure projects. However, these measures are seen as temporary fixes, and the billionaire tax remains the most ambitious long-term solution on the table.
For Medi-Cal recipients and healthcare providers, the stakes could not be higher. Hospitals in rural and low-income areas are already struggling with staffing shortages and financial strain, and further cuts could force closures or reductions in services. “This isn’t just about numbers on a spreadsheet,” said Dr. Alice Chen, chief medical officer of the Los Angeles County Department of Health Services. “It’s about whether a mother can secure prenatal care, whether a child with asthma can see a doctor, and whether a senior can afford their medications.”
Key Takeaways
- Ballot Measure: California voters will decide in November 2026 whether to impose a 5% one-time tax on billionaires’ net worth to fund Medi-Cal, and CalFresh.
- Federal Cuts: The proposal is a response to H.R. 1, a 2025 federal law that slashed Medicaid and SNAP funding, threatening coverage for up to 2 million Californians.
- Revenue Projections: The tax could generate $20 billion to $40 billion over five years, with 90% allocated to healthcare and 10% to food assistance.
- Opposition: Critics argue the tax could drive billionaires out of the state, reducing overall tax revenue and harming the economy.
- Legal Uncertainty: The measure could face legal challenges, though California’s ballot initiative process may provide a stronger legal basis than similar efforts in other states.
- Impact on Healthcare: Without new funding, hospitals and clinics could face closures or service reductions, particularly in rural and low-income communities.
What Happens Next?
The next major milestone is the November 2026 election, where California voters will cast their ballots on the billionaire tax proposal. In the months leading up to the vote, both supporters and opponents are expected to ramp up their campaigns, with SEIU-UHW and allied groups likely to emphasize the human impact of healthcare cuts, while business groups warn of economic consequences.
For now, Californians are watching closely as the state grapples with a question that could have national implications: Can progressive tax policies save public health systems from federal austerity? The answer may well shape the future of healthcare access not just in California, but across the United States.
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