California Can’t Afford Prop 40

Proposition 40 is a poorly-designed tax scheme that will damage California’s economy, cost our state budget billions of dollars, and expose all Californians to higher taxes - all without doing anything to lower healthcare costs.

Prop 40 complicates passage of smart, proven tax measures, crafted by broad labor coalitions, that provide stable funding, accountability and results. Voters should reject Prop 40.

Dr. René Bravo, M.D., President of the California Medical Association, with text Vote No on Prop 40

Watch: Three California doctors — Dr. René Bravo, President of the California Medical Association; Dr. C. Freeman, M.D., of Marina del Rey; and Dr. Nicole Barnett, President of Planned Parenthood Northern California Action Fund — explain why they oppose Prop 40.

Read the Video Transcript

Dr. C. Freeman, M.D., Marina Del Rey, CA: The people pushing Prop 40 say it's supposed to improve health care. That's not true.

Dr. René Bravo, President, California Medical Association: That's why we oppose Prop 40.

Dr. Nicole Barnett, President, Planned Parenthood Northern California Action Fund: Because studies show it will cost California billions in tax revenue, forcing deep cuts to hospitals and clinics.

90% of the money could go to big health insurance companies with no requirement to lower your health care costs.

That's why doctors, hospitals, and Planned Parenthood affiliates of California all agree. Vote no. Vote no.

Vote no on 40.

Why California Leaders Oppose Prop 40

Doctors, teachers, firefighters, labor and civil rights leaders explain in their own words why they oppose Prop 40.

  • Gavin Newsom Governor of California

    "[Prop 40] does not support our public educators. It does not support our teachers and counselors, our librarians. It doesn’t support our first responders and firefighters. It doesn’t support the general fund and parks."

  • Xavier Becerra, Former U.S. HHS Secretary & Democratic Candidate for Governor

    “You don’t need tax policy to be a one-time shot because you need consistent, predictable revenue in order to manage a budget the size of the state of California…I was for 20 years on the Ways and Means Committee in Congress — a tax policy writer. Tax policy has to be predictable, it has to be stable, and it has to understand that it’s interconnected with everything that goes on.” (March 11, 2026)

  • Jodi Hicks, President & CEO Planned Parenthood Affiliates of California

    "[Prop 40]’s uncertain impacts on the state budget and lack of specificity on health care allocations will do more harm than good in the long term. In order to protect access to care for the millions of patients that safety net providers like Planned Parenthood serve, we have opposed this measure and urge our health care partners to do the same."

  • Francisco Silva, President & CEO California Primary Care Association

    "It’s unfathomable that proponents of [Prop 40] are claiming their efforts are intended to help Medi-Cal, while at the very same time they are advocating for policies that will decimate the very safety-net and workforce that Medi-Cal patients rely on. Proponents have a long history of promoting flawed and deceptive proposals that actually harm patients. This measure is no different."

  • Rene Bravo, MD, President California Medical Association

    "[Prop 40] is the wrong way to address the state's health care funding challenges and was developed without input from the physicians, hospitals, clinics, and other providers who care for Medi-Cal patients every day. [Prop 40] relies on an unstable revenue source, provides no clear accountability for how the money would be spent, and does not offer the long-term funding solution that patients and health care professionals need."

  • Vernon M. Billy, CEO & Executive Director California School Boards Association

    "[Prop 40] raises serious questions about revenue reliability, economic impacts and the long-term consequences for California's tax base. CSBA believes students are best served through durable funding solutions that strengthen educational opportunity while preserving the state's economic competitiveness."

  • Ann-Louise Kuhns, President & CEO California Children’s Hospital Association

    "California’s children deserve a stable, sustainable health care system. The one-time tax proposed by Prop 40 doesn’t provide that stability. Worse, the measure jeopardizes existing revenue that children on Medi-Cal, including those with the most medically complex conditions, rely upon for their care."

  • Dr. Rick L. Callender, Esq., President NAACP California Hawaii State Conference

    "Proposition 40 is the wrong way to address the challenges facing our state. In fact, it will make many of our problems worse, diverting billions of dollars from public schools and putting additional pressure on the budget that could squeeze funding for other essential public services. That’s why we urge Californians to vote No on Proposition 40."

  • Chris Hannan, President State Building and Construction Trades Council of California

    "[Prop 40] will drive away capital when we need it the most, threatening construction jobs, our infrastructure, and California's future. When investment leaves California, critical housing, transportation, school, and water projects leave with it. We can't let that happen."

  • California Hospital Association

    "While access to health care in California is more precarious than ever, [Prop 40] is simply the wrong answer. This measure would only temporarily generate funding and threaten the overall health of California’s finances over the long term, further jeopardizing resources for life-saving health care services. California can’t afford this poorly designed tax measure."

  • Pete Rodriguez, Vice-President United Brotherhood of Carpenters

    "California’s working people need more jobs, more investment, and more opportunities — not policies that make it harder to build and grow. This initiative will discourage investment, slow economic activity, and threaten the jobs, wages, and benefits that support union families. We believe in a fair tax structure, but this proposal misses the mark."

  • Chione Lucina Muñoz Flegal, Executive Director Housing California

    "To truly address our affordability crisis, California needs permanent, scaled investments that deliver stable, lasting impact. This measure simply doesn’t achieve that. That’s why Housing California and our partners remain focused on meaningful solutions that advance both health and prosperity: safe and affordable housing, strong schools, quality healthcare, and essential services. The foundation that will make everyday life more affordable and ensure our communities thrive."

  • California Chamber of Commerce

    "The effort to impose an unprecedented wealth tax is not only misguided but creates a dangerous precedent that will cause more problems than it would ever solve. The risky nature of taxing unrealized gains on shares held by founders of Silicon Valley simply to obtain a one-time infusion of tax revenue that ignores the state’s systemic budget problems. One recent analysis found the exodus of wealthy Californians, along with the resulting trickle-down of those decisions to leave, could shrink government tax revenues by as much as $4.5 billion."

Get the  Facts

Prop 40 is a flawed, reckless tax proposal that:

Will Cost $25 Billion in Lost Revenue

Will Cost $25 Billion in Lost Revenue

Prop 40 would leave California worse off by an estimated $25 billion once lost income tax revenue is considered, according to research from the Hoover Institution at Stanford University (March 2026).

Gives Politicians Power to Expand the Tax to Anyone

Gives Politicians Power to Expand the Tax to Anyone

Prop 40 lets legislators change the tax after it passes without voter approval. CalMatters warns: "They can keep ratcheting down the income level of who pays it."

Taxes Retirement for the First Time in State History - A Dangerous Precedent

Taxes Retirement for the First Time in State History - A Dangerous Precedent

Because legislators can change Prop 40 after it passes without voter approval, the tax could be expanded to target Californians' savings or retirement accounts, KCRA reported.

Has Zero Safeguards on How Funding is Spent

Has Zero Safeguards on How Funding is Spent

The California Medical Association warns Prop 40 "has no safeguards to ensure the revenue generated is directed toward patient care."

Contains Serious Constitutional & Legal Flaws That Could Block Revenue

Contains Serious Constitutional & Legal Flaws That Could Block Revenue

Legal analyses find Prop 40 has constitutional vulnerabilities that could lead a court to narrow or invalidate it, and California could spend years defending the tax before seeing meaningful revenue.

Violates Voter-Approved Constitutional Protections for Schools & Taxpayers

Violates Voter-Approved Constitutional Protections for Schools & Taxpayers

Prop 40 exempts itself from Proposition 98's school funding guarantee. The nonpartisan Legislative Analyst's Office says laws requiring tax revenue to go to schools "would not apply to this money."

What is Prop 40?

Prop 40 is a measure on the 2026 ballot that imposes a 5% tax on the net worth of certain California taxpayers, and politicians could expand it after it passes without a vote of the people. Learn more in our FAQ.

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Join our Coalition

I/we oppose Prop 40, the reckless California wealth tax experiment that will push innovators and job creators out of the state, jeopardizing core services and forcing other taxpayers to make up the difference.

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