A proposal to raise taxes on the wealthiest Californians has moved closer to appearing on the November ballot. The labor union backing the measure announced Monday that it would submit far more signatures than the number required to qualify.
Signature Submission and Verification
Members of the Service Employees International Union-United Healthcare Workers West, the union that drafted the proposal, stated they have collected more than 1.5 million signatures. This total is nearly twice the number of valid signatures required for the measure to proceed.
State officials are now set to begin the verification process. If officials determine that 875,000 of the submitted signatures are valid, the measure could be placed on the November ballot.
Details of the “Billionaire Tax”
The initiative seeks to implement a one-time 5% tax on the assets of Californians with a net worth exceeding $1.1 billion. The proposal would establish a smaller tax for individuals with a net worth between $1 billion and $1.1 billion.
Under the terms of the proposal, the state would be required to spend the resulting revenue almost entirely on healthcare. Proponents argue these funds are necessary to address budget shortfalls caused by Medicaid cuts included in the Big Lovely Bill signed into law by President Donald Trump.
Political Divisions and Opposing Views
The proposal has created a sharp divide among California Democrats. Gov. Gavin Newsom, who is considering a 2028 presidential bid, opposes the measure and has thwarted previous legislation related to wealth taxes.
Conversely, Rep. Ro Khanna, D-Calif., another potential White House contender, supports the tax. The issue has also influenced the race to succeed Newsom as governor; billionaire activist Tom Steyer supports the tax, while former Rep. Katie Porter and former U.S. Health and Human Services Secretary Xavier Becerra oppose it.
Mayra Castañeda, a member of SEIU United Healthcare Workers West, argued at a Monday news conference that ultra-wealthy billionaires have seen fortunes skyrocket while working families struggle with the costs of rent, gas, and food. She stated, “when hospitals are already starting to cut services, clinics are closing and families are set to lose healthcare coverage, we say that those who have prospered from here in California can afford to invest a little more in keeping California running.”
Critics of the measure warn that the tax may lead to a rapid exodus of wealthy individuals, investors, and tech leaders, which they claim could result in even larger budget problems for the state.
Frequently Asked Questions
What is the primary goal of the billionaire tax proposal?
The proposal aims to implement a one-time tax on the wealthiest Californians to generate revenue that would be spent almost entirely on healthcare, helping to fill budget shortfalls caused by Medicaid cuts.

Who is eligible to be taxed under this initiative?
The tax targets individuals with a net worth of $1 billion or more. Those with a net worth exceeding $1.1 billion would face a one-time 5% tax on their assets, while those between $1 billion and $1.1 billion would be subject to a smaller tax.
How many signatures are needed for the measure to reach the ballot?
State officials must verify that at least 875,000 signatures are valid for the measure to be placed on the November ballot.
Do you believe a one-time wealth tax is an effective way to fund essential state healthcare services?
