
A new California wealth tax fight now tests whether Gov. Gavin Newsom will back a scaled-down deal or keep fighting the levy outright.
Quick Take
- Billionaire tax backers are offering to reduce the proposed levy in hopes of winning Newsom’s support.
- The measure would still target California residents with more than $1 billion in net worth.
- Supporters say the money is needed to help cover health care funding losses and protect Medi-Cal.
- Newsom has publicly opposed the proposal and warned it could damage the state’s tax base.
Backers Try to Narrow the Fight
California labor-backed supporters of the billionaire tax are trying to soften the proposal after heavy pushback. The new pitch is simple: cut the levy, keep the revenue, and win over Governor Gavin Newsom. The move shows how much resistance the tax has already faced, even before voters can weigh in.
The proposal would impose a one-time tax on California billionaires, with the current plan set at 5 percent of net worth above $1 billion.[2][3] Supporters say the money would flow mainly to state health care programs, including Medi-Cal, with smaller shares for food assistance and education.[2][5] Research tied to the campaign says the tax could raise about $100 billion over five years.[1][20]
Why Supporters Say the Tax Is Needed
Backers frame the measure as an emergency fix for a widening health care gap. They argue that federal cuts have put pressure on Medi-Cal and could force hospital, clinic, and job cuts if Sacramento does not replace the lost money.[1][9][11] In their view, the tax asks a very small group of ultra-wealthy residents to help steady a system used by millions of Californians.[5][9]
The Department of Justice filing describes the plan as a one-time tax on accumulated wealth, not income.[5] It also says the tax would apply to California residents with net worth above $1 billion and would phase down for those just under that level.[3][5] Supporters say that design keeps the focus on extreme wealth and avoids hitting ordinary taxpayers.[2][7]
Newsom’s Opposition Shapes the Political Fight
Governor Newsom has not embraced the scaled-back idea. He has repeatedly argued that the tax could shrink California’s tax base if wealthy residents leave the state.[2][4][5] Newsom has also said the plan may hurt schools, public safety, and other core services by driving away taxpayers who already contribute a large share of state revenue.[5][16]
California labor union offers to scale back billionaire tax proposal after pushback https://t.co/JzmRzBaffK
— WHLT 22 Hattiesburg (@WHLT22) June 19, 2026
That warning has become the central argument for opponents. The Legislative Analyst’s Office has said the tax could bring in tens of billions in one-time revenue but also reduce income tax collections by hundreds of millions of dollars each year if some billionaires move away.[2][3] Outside groups and some Democrats now echo that concern, saying a one-time windfall is no substitute for stable funding.[10][13][15]
What Happens Next
The measure still must clear the signature drive before it reaches the November ballot.[3][11] If it qualifies, voters will decide whether California should bet on a narrow wealth tax to patch health care losses or reject a plan critics call risky and unpredictable.[1][6][21] For Newsom, the issue is not just tax policy. It is also a test of whether he wants to stand with union allies or keep siding with warnings about capital flight and long-term budget damage.[2][4][9]
Sources:
[1] Web – Billionaire tax backers offer to cut proposed levy against …
[2] Web – California’s proposed wealth tax could raise $100 billion even if …
[3] Web – 2026 California billionaire tax initiative – Wikipedia
[4] Web – California’s Proposed 2026 Billionaire Tax Act: What You Need to …
[5] Web – California Wealth Tax Proposal Achieves a New Feat in Tax Policy
[6] Web – [PDF] 25-0024A1 (Billionaire Tax) – California Department of Justice
[7] Web – California One-Time Wealth Tax for State-Funded Healthcare …
[9] YouTube – One State Found a Way to Make Billionaires Pay. Your …
[10] Web – California unions clash with Newsom on billionaire tax
[11] Web – Gavin Newsom’s race to block a billionaire tax – POLITICO
[13] YouTube – California’s proposed billionaire tax faces opposition from …
[15] Web – Gavin Newsom Vows to Stop Proposed Billionaire Tax in California …
[16] Web – Opposition to Billionaire Tax Grows | GrowSF.org
[20] Web – [PDF] The California Tax on Extreme Wealth (ACA 8 & AB 310): Revenue …
[21] Web – Expert Report on the California 2026 Billionaire Tax









