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As the 2026 Billionaire Tax Act advances toward the November ballot, legal analysts and political observers are focusing on a lesser‑known but highly consequential provision: Section 50310, which outlines how the Legislature may amend the measure after voter approval. While the initiative is framed as a constitutional amendment imposing a one‑time 5% tax on individuals with a net worth over $1 billion, the amendment rules embedded in Section 50310 have become a flashpoint in

California voters may face a monumental decision in November 2026: whether to approve the 2026 Billionaire Tax Act , a ballot initiative imposing a one‑time 5% excise tax on the net worth of residents holding $1 billion or more in assets. The measure, backed by a major healthcare labor union, aims to raise up to $100 billion for healthcare, education, and food assistance programs. 1 To qualify for the ballot, supporters must gather roughly 875,000 valid signatures by June