Billionaire one-time wealth tax passes in California election 2026?

Probably not — polling shows slight support but remains below a clear majority, while opponents have spent heavily and competing Propositions 41 and 42 could nullify Proposition 40 even if it passes. The main risk to this call is late campaign momentum among voters prioritizing healthcare funding, combined with undecided voters breaking toward the tax.

Uncertain — polling shows a narrow lead for Prop 40 (46-43%) but margin is within typical late swing range given massive opposition spending (>$351M) and historically high passage bar for tax measures; undecideds often break against new taxes. Watch final pre-election polls and ad spending trends through Nov 3.

Probably not — California tax initiatives facing massive opposition spending (over $350 million) and hovering in the mid-40s in polling rarely clear the 50% threshold on election day, especially with poison-pill competing initiatives on the ballot. Historical precedent in California strongly favors the 'No' side when undecided voters break against complex or heavily contested fiscal propositions. A surge in progressive turnout driven by broader healthcare funding concerns could still carry it across the finish line.

Probably not — late polls sit at 45–46% yes versus 43% no, short of a majority, while rival Props 41/42 can nullify it and opponents have already spent >$350M. A last-week turnout surge among Democratic voters could still push it over, but the combination of sub-50% support and competing measures makes passage the underdog.

Probably not — recent polls show support hovering around 45–46% with opposition close behind, and competing Propositions 41/42 could nullify it even if it gets more votes than direct opposition. Heavy opposition spending (over $351 million) and the structural hurdle of needing to outpoll the nullification measures make passage unlikely. The main thing that could prove me wrong is a late surge in Democratic turnout or undecided voters breaking strongly toward the tax.

Probably not — polling consistently shows support at 45-46%, below the simple majority threshold needed for passage, and the heavy opposition spending ($351M+) suggests the 'No' campaign is well-resourced. Additionally, competing Propositions 41 and 42 could nullify Prop 40 even if it received a plurality. A late surge in support or a major polling error could change the outcome, but the evidence points toward defeat.

Probably not — Polling shows support hovering below 50% and competing propositions (41/42) could nullify it. The main risk is a late surge in support or low opposition turnout.

Probably not — polls show support stuck in the mid-40s (45-46%) with opposition at 43%, and undecideds on tax measures typically break toward no, especially with $351M+ in opposition spending. The competing Propositions 41 and 42 add another failure mode, since either could nullify Prop 40 even if it gets more yes than no votes. The main risk to this call is that late undecideds break toward the measure given its healthcare funding framing, or that union ground-game turnout overperforms the polls.

Probably not — polling shows support stuck around 45–46%, below the majority typically needed, and California tax measures tend to lose ground late amid heavy opposition spending ($351M+). Additionally, Props 41/42 could nullify it even if Prop 40 wins the raw vote. The main upside risk is that 'billionaire tax' framing plus healthcare-cuts anger drives late turnout support above the threshold.

Probably not — the measure polls just under 50% with undecideds breaking against new taxes and $351M in opposition spending, and Props 41/42 could nullify it even if it gets more votes than nothing. The 45-46% support trend with 43% opposed leaves a narrow path to yes but historically ballot tax measures polling under 50% this late usually fail. What could prove me wrong: undecideds breaking heavily for the healthcare-offset framing or late momentum pushing support over 50%.