Politics1 min read

California voters fail to pass proposed one-time tax on billionaires’ wealth

By · Via The Guardian Business · Published by Everything Blog

In short

California voters have rejected Proposition 40, defeating a proposed one-time 5% tax on individuals residing in the state with a net worth exceeding $1 billion as of January 1, 2026. Sponsored by the healthcare union SEIU-United Healthcare Workers West, the measure was designed to fund healthcare, education, and food assistance to offset cuts from Trump’s One Big Beautiful Bill Act. The outcome marks a significant victory for California's ultra-wealthy and may slow nationwide efforts to enact similar wealth taxes.

Key points

  • Billionaires and Silicon Valley tech executives successfully mobilized unprecedented fund…: Billionaires and Silicon Valley tech executives successfully mobilized unprecedented funding to thwart the proposed wealth tax.
  • Bipartisan political leadership, including Governor Gavin Newsom and both major candidate…: Bipartisan political leadership, including Governor Gavin Newsom and both major candidates running to succeed him, joined the opposition against the measure.
  • Rejection of the California initiative will likely slow nationwide efforts by labor group…: Rejection of the California initiative will likely slow nationwide efforts by labor groups and progressive politicians to institute targeted wealth taxes.

Sources checked by our analysis pipeline: 1

California billionaires won a contentious ballot measure campaign, defeating a proposed one-time tax on their wealth.

The bruising campaign over Proposition 40 was the most expensive in state history and witness to back-and-forth dealing from tech billionaires and democratic leaders, including Gavin Newsom, the governor, who steadfastly opposed the measure. While supporters of Prop 40 cast it as a solution to drastic healthcare cuts from Trump’s One Big Beautiful Bill Act, opponents led by prosperous billionaires mounted an influential campaign saying the billionaire tax was instead “an everyone tax”.

This result could hamper nationwide momentum on demands that billionaires pay their fair share and states enacting new laws to tax the ultra-wealthy.

Prop 40 proposed a one-time 5% tax on all individuals in California with a net worth of more than $1bn as of 1 January 2026. It was sponsored by the healthcare union SEIU-United Healthcare Workers West, and dictated that the proceeds from the tax would fund healthcare programs, along with some education and food assistance.

The state’s major unions, and progressive politicians such as Bernie Sanders, the Vermont…

Politics