By Jose E. Navarro | The Navarro Report | October 13, 2026
California voters will see three measures on the Nov. 3 ballot that cannot all take full effect. Proposition 40 would tax billionaires. Propositions 41 and 42 would block it. Because the state settles conflicts by counting yes votes, a voter who backs two of them may end up cancelling a choice.
What each measure does
Prop. 40 imposes a one-time 5% tax on the wealth of billionaires who lived in California on Jan. 1, 2026. Ninety percent of the revenue would go to health care and 10% to schools and food assistance. The sponsor, the health care workers union SEIU-UHW, says it would offset an estimated $100 billion in federal health funding losses over five years. A few hundred billionaires live in California, according to the Legislative Analyst’s Office (LAO), which projects a temporary revenue gain of tens of billions of dollars over several years, plus a possible ongoing income tax loss of less than $1 billion a year.
Prop. 41 would nullify any state tax enacted after Jan. 1, 2026 whose revenue is exempt from the state spending limit, and require audits of programs funded by new special taxes. Prop. 40 exempts its revenue from that limit. Prop. 42 would ban new state taxes on personal property and most retroactive taxes. Supporters, including firefighters and building trades unions, say it protects retirement savings from double taxation.
The rule that decides
When measures conflict, the one with the most yes votes prevails. The LAO says both Props. 41 and 42 conflict with the billionaire tax. If either gets more yes votes than Prop. 40, the tax is void, even if Prop. 40 also passes.
That matters because the Public Policy Institute of California surveyed 1,103 likely voters in early September and found about 52% support for Prop. 40, 51% for Prop. 41 and 54% for Prop. 42. All three lead. CalMatters columnist Dan Walters notes that respondents saw only each measure’s official summary and were not told how the three interact.
Sacramento State political scientist Wesley Hussey says the overlap appears to be deliberate, letting voters like parts of one measure while preferring another.
The arguments
Supporters of Prop. 40 argue the Trump administration cut health care funding to pay for billionaire tax breaks. Sen. Bernie Sanders headlined a Los Angeles rally for the measure on Oct. 5. Opponents note that the top 1% of earners supply nearly half of personal income tax revenue and say wealthy residents are already leaving. Jodi Hicks, California CEO of Planned Parenthood, calls the measure “seriously flawed.” Backers of Prop. 41 say audits would bring accountability after billions went to programs like homelessness with too little to show.
Who is paying
The campaigns are lopsided. As of Aug. 6, committees for the three measures had raised about $140 million, the San Francisco Examiner reported. Yes on 40 had $31.4 million, almost all from SEIU-UHW. Opposing efforts had $108.8 million, with $107.5 million coming directly or indirectly from billionaires or their affiliates. By mid-August, Google co-founder Sergey Brin had put $102 million into Building a Better California, the committee behind Props. 41 and 42.
A report published Oct. 9 put opposition totals above $300 million, roughly ten times the yes side, with about $96 million in ads booked against $209,000 for supporters, according to AdImpact. Totals vary by source and date.
The politics
Gov. Newsom opposes Prop. 40 and endorses Prop. 42, saying, “We all agree that Californians deserve to have their retirement and life savings protected from new state taxes.” He has taken no position on Prop. 41. Rep. Ro Khanna says donor relationships are the “only reason” for his stance.
Opponents of the tax, including the California Taxpayers Association and the California School Boards Association, call it a flawed one-time levy that could hurt state finances. Backers of Prop. 40 call Props. 41 and 42 an effort to “trick voters.” The committee behind them says it supports “forward-looking ideas to improve affordability and quality of life for all Californians.”
What a voter can do
A voter who wants the tax and also wants retirement savings protected cannot assume that a yes on both delivers both. A voter who opposes the tax can vote no on Prop. 40 and yes on Prop. 41 or 42 as insurance in case it passes. The practical lesson is to read the three measures together, starting with the Legislative Analyst’s summaries in the voter guide.
What to watch
Even a clear result may not end the matter. Walters writes that the measures’ complex language would likely lead to prolonged legal battles. And because the rule counts yes votes, the order of finish among the three may matter more than whether Prop. 40 passes. California counts ballots for weeks, so that order may not be clear on election night.
The Navarro Report practices Human-Directed AI Journalism. This article was researched and drafted with AI assistance under the direction, review and editorial approval of Jose E. Navarro.