California's Proposition 41, a citizen-initiated constitutional amendment on the November 3, 2026 ballot, requires pre-election audits by the State Auditor for voter initiatives proposing new special taxes once they reach 25 percent of required signatures, plus recurring four-year reviews of programs funded by special taxes enacted after January 1, 2026. It also bars any new state taxes from being excluded from the existing Gann spending limit. The measure emerged as a direct counter to competing initiatives, including a proposed billionaire wealth tax, with the higher-vote rule determining which prevails in conflicts. Trader consensus favoring rejection at 57 percent reflects the crowded ballot environment, institutional opposition from groups seeking new revenue flexibility, and the structural barriers such fiscal oversight amendments typically face in statewide votes.