The California Democratic Party officially endorsed Proposition 40, a ballot measure that would impose a one-time 5% tax on residents with assets exceeding $1 billion, during a recent state convention. The measure, which will appear on the November 3 statewide general election ballot, has also received backing from the California Nurses Association, representing over 100,000 healthcare workers.
Proposition 40 aims to raise an estimated $100 billion over five years, with revenue earmarked primarily for healthcare and other public programs. Supporters argue the tax targets extreme wealth to fund critical services, while opponents warn it could drive high-net-worth individuals out of the state.
Governor Gavin Newsom (D-CA) has publicly opposed the measure, citing concerns that it would encourage wealthy residents to relocate. In a June 26 Substack post, Newsom argued that billionaires could easily move to states like Texas or Florida to avoid the tax, adding that the measure’s revenue is overly concentrated in a single policy area. He emphasized that the tax “ignores our public schools” and fails to allocate funds to housing, childcare, public safety, or higher education.
The Hoover Institution, a conservative-leaning think tank, has projected that the tax’s revenue could fall short of expectations. Its analysis suggests that $100 billion in projected revenue is closer to $40 billion, due to potential relocations and legal challenges. The institution further estimates that California could lose $25 billion in long-term tax revenue if billionaires leave the state, as their taxable incomes would no longer be subject to California’s tax system.
The ballot measure includes a retroactive provision that would tax billionaires who were in California as of January 1, 2025, ten months before the November election. Critics argue this provision may be legally dubious, while supporters contend it ensures fairness by capturing wealth accumulated under current state policies.
Key Details:
- Tax Rate: 5% on assets exceeding $1 billion.
- Projected Revenue: $100 billion over five years (per supporters).
- Alternative Projection: $40 billion (per Hoover Institution).
- Long-Term Revenue Loss: Estimated at $25 billion (per Hoover Institution).
- Ballot Date: November 3, 2025.
- Primary Use of Funds: Healthcare and public programs.
Opposition Arguments:
- Gov. Newsom argues the tax is too narrow and could disincentivize investment in California.
- Critics warn of legal challenges and economic repercussions from billionaire relocations.
- Hoover Institution projects net revenue losses due to behavioral responses.
Supporting Arguments:
- California Nurses Association and California Democratic Party argue the tax addresses wealth inequality and funds essential services.
- Supporters contend the tax targets extreme wealth without harming broader economic activity.
The measure reflects a broader debate over wealth taxation, economic mobility, and state revenue strategies in California, a state with one of the highest concentrations of billionaires in the U.S.