A new proposal in California is drawing attention and controversy. The plan would impose a one-time 5% tax on billionaires and their assets, with the goal of funding health care programs across the state. Supporters say it’s a targeted way to address funding gaps, but critics are raising concerns about how much power it could give lawmakers.

What’s in the Proposal?

The measure, known as the “2026 Billionaire Tax Act,” outlines a one-time tax aimed specifically at the ultra-wealthy. Backers, including the health care union SEIU-UHW, argue that the revenue would help offset financial pressures on the state’s health care system, especially in light of potential federal funding cuts.

Why Business Leaders Are Concerned

The California Business Roundtable, which represents many of the state’s largest companies, is pushing back. Their concern centers on a provision that allows the state Legislature to amend the law in the future with a two-thirds vote, as long as changes align with the measure’s original purpose.

According to the group, this language could open the door to broader taxation powers down the line. They argue it might allow lawmakers to expand what counts as taxable wealth, potentially including assets like savings or retirement accounts.

Supporters Push Back

Supporters of the measure strongly reject those claims. Representatives from SEIU-UHW say the proposal is narrowly focused and includes safeguards. They emphasize that any amendments must stay consistent with the core purpose: taxing billionaires, not the general public.

They also point to growing financial strain on health care systems as a reason the measure is needed now.

What Happens Next?

The proposal is still in the early stages. Organizers say they’ve submitted around 1.5 million signatures to qualify it for the November ballot. However, the verification process, overseen by the California Secretary of State, has not yet begun and could take several months.

If enough valid signatures are confirmed, California voters will ultimately decide whether the billionaire tax becomes law.