How California Cities Are Rushing Tax Measures to Beat the Two-Thirds Majority Requirement of Proposed Prop 43

If you live in California, your November 2026 ballot is likely packed with local tax measures for parks, transit, and homelessness programs. The actionable takeaway for voters is simple: these measures are part of a coordinated, statewide rush to pass taxes before a looming legal deadline permanently changes how cities and counties can fund their services. At the center of this surge is a high-stakes tug-of-war between taxpayer advocacy groups and local governments over a single constitutional loophole.[5]

Local governments and public employee unions are hurrying these "citizen-initiated" special taxes to the current ballot to take advantage of a mechanism that allows them to pass with just over 50% of the vote. If they wait until next year, the exact same measures will likely require a daunting 66.67% supermajority to become law.[1]

That window is on the verge of closing. Proposition 43, a statewide constitutional amendment on the same November ballot, is designed to mandate that all future local special taxes secure a two-thirds supermajority to pass, regardless of who proposes them. Because Proposition 43 only takes effect on January 1, 2027, the current election represents the final opportunity for municipalities to secure funding under the lower threshold.[2][3]

To understand the rush, you have to look at the structural rules of California taxation. Since the passage of Proposition 13 in 1978 and Proposition 218 in 1996, the state constitution has mandated that any "special tax"—a tax whose revenue is earmarked for a specific purpose rather than a general fund—must be approved by two-thirds of local voters.[2][4]

This supermajority requirement was designed to make it exceptionally difficult to raise taxes, ensuring that only broadly popular initiatives could secure funding. For decades, city councils and county boards struggled to clear this 66.67% bar, often seeing taxes that won 60% or 65% of the vote fail to become law.[4]

The landscape shifted dramatically in 2017. In a landmark ruling known as California Cannabis Coalition v. City of Upland, the California Supreme Court determined that the two-thirds requirement applied only to taxes placed on the ballot by government bodies. If a tax measure was placed on the ballot by citizens through a signature-gathering initiative, the court ruled, it only needed a simple majority to pass.[3]

This ruling created what tax-limitation advocates call a loophole and what local governments call a lifeline. Over the next several election cycles, public employee unions, transit advocates, and local coalitions began using the citizen-initiative process to bypass city councils entirely, successfully passing special taxes for homelessness, early education, and infrastructure with simple majorities.[3]

Business groups and taxpayer organizations launched a counter-offensive to close the Upland loophole. They initially proposed a sweeping, retroactive ballot measure that would have invalidated any citizen-initiated tax passed without a two-thirds majority since the 2017 ruling, threatening billions of dollars in existing local funding.[3][4]

Facing the prospect of municipal budgets being wiped out, Governor Gavin Newsom and legislative leaders negotiated a last-minute compromise in June 2026. The retroactive initiative was withdrawn from the ballot and replaced with a legislative constitutional amendment, which became Proposition 43.[3][4]

Proposition 43 is strictly forward-looking. If approved by a simple majority of statewide voters this November, it will amend the California Constitution to require a two-thirds vote for all local special taxes, including those proposed by citizen initiatives, starting January 1, 2027.[2][3]

Crucially, the measure explicitly protects any tax measures approved on or before the November 2026 election. This non-retroactive clause is the exact mechanism driving today's municipal tax rush. Organizers know that any measure that qualifies for the current ballot will be judged by the 50%-plus-one standard, while identical measures proposed next year will face the higher threshold.[3]

The result is a crowded local ballot across the state. In Fresno, for example, voters are weighing special taxes for parks and transportation. In the Bay Area, advocates are pushing massive sales tax increases to fund transit services, all hoping to secure a simple majority before the rules change.[1]

To facilitate this wave of local measures, state lawmakers have even stepped in to clear administrative hurdles. Governor Newsom recently signed Senate Bill 762, granting waivers to over a dozen cities and counties to exceed the state's statutory 9.25% cap on local sales taxes, ensuring that these new initiative-based taxes can legally be collected if voters approve them.

For voters, the immediate takeaway is that the outcome of these local measures will be decided by razor-thin margins. A tax that secures 51% of the vote this November will become law and remain in effect indefinitely, protected by the compromise language in Proposition 43.[3][5]

Looking ahead, if Proposition 43 passes, the era of the citizen-initiated tax boom will end. Local governments will once again have to build broad, bipartisan coalitions capable of clearing the two-thirds supermajority bar for any dedicated funding streams, fundamentally altering the fiscal strategy of California cities for the foreseeable future.[2][5]