California voters could decide the fate of a proposed one-time 5 percent wealth tax on residents with net worth exceeding $1 billion when they consider the 2026 Billionaire Tax Act on the November ballot. The initiative, which cleared signature thresholds after backers submitted over 1.5 million signatures in late April, would direct proceeds toward state-funded health care, education, and food assistance while amending the state constitution to address legal constraints. Opposition from business groups and lawmakers highlights risks of capital flight, valuation disputes, and reduced economic activity, factors that have tempered expectations for passage despite the measure’s qualification. Upcoming court challenges and any shifts in voter sentiment before Election Day remain key variables that could alter the current trader consensus reflected in market pricing.