Tri-State Election Tracker

California 2026 Ballot Measure: Billionaire Tax (Prop 40) Sparks Controversy, Intersects with Tech Billionaire Spending

California 2026 Ballot Measure: Billionaire Tax (Prop 40) Sparks Controversy, Intersects with Tech Billionaire Spending

Key Questions

What is California's Proposition 40 billionaire tax ballot measure?

Proposition 40 is a 2026 ballot measure proposing a tax on billionaires. It has sparked controversy, with Governor Newsom and Xavier Becerra opposing it while labor unions support it.

How are billionaires responding to the California wealth tax proposal?

A coalition of billionaires opposed to the measure has reserved nearly $87 million in advertising to defeat it. This effort is part of broader spending by tech billionaires totaling $336 million in local elections.

What other issues are covered in California's November ballot measures?

Voters will decide on 14 measures covering housing, taxes, campaign finance, voter ID, and more. A comprehensive guide analyzes potential economic impacts and comparisons to other countries like Norway.

A major California ballot measure for the 2026 midterms proposes a tax on billionaires. It is deeply controversial, with Governor Newsom and Xavier Becerra opposing it, while labor unions support it. A comprehensive guide to all 14 November ballot measures is now available. Billionaires have launched an $87M ad blitz to defeat Prop 40, with Brin alone giving $82M. Countermeasures Props 41 & 42 add complexity. This debate intersects with a broader trend of tech billionaires spending $336M in local elections to push AI/crypto deregulation, raising questions about corporate influence.

Sources (2)
Updated Jul 21, 2026
What is California's Proposition 40 billionaire tax ballot measure? - Tri-State Election Tracker | NBot | nbot.ai