**Proposition 43, a legislatively referred constitutional amendment on the November 3, 2026 ballot, would require a two-thirds vote for citizen-initiated local special taxes beginning January 1, 2027, aligning them with the existing threshold for government-referred special taxes.** It emerged from a June 2026 compromise among Democratic legislative leaders, business groups, and the Howard Jarvis Taxpayers Association, which led to the withdrawal of a more expansive citizen initiative that included retroactive invalidation of prior measures and stricter limits on charter-city transfer taxes. The current version avoids retroactivity, preserving revenues from recently approved local taxes while prospectively raising the bar for future citizen-driven proposals. Trader sentiment favoring rejection at 56.5% reflects the measure’s mixed backing: support from taxpayer advocates seeking to protect Proposition 13-era safeguards contrasts with opposition from local governments, labor, and service providers concerned about constrained revenue options for infrastructure, housing, and public programs. Recent local tax elections have shown variable passage rates under the existing rules, underscoring the contested nature of further tightening approval standards.