California's proposed billionaire tax: How does it add up?

Key Points:

• California voters will decide on Proposition 40, a novel one-time 5% tax on the net worth of the state's approximately 200 billionaires, aimed at raising $100 billion over five years to restore healthcare funding cuts linked to federal Medicaid reductions.
• Proposition 40 faces strong opposition, including from some billionaires who have left California, major unions, and prominent Democrats like Governor Gavin Newsom and former Congresswoman Katie Porter, who argue the tax could drive wealthy individuals out of the state and harm job creation.
• Supporters, led by healthcare union leader Dave Regan, view the tax as a necessary temporary measure to prevent millions from losing health insurance and to keep healthcare facilities operational, emphasizing its symbolic value in addressing a broken tax system favoring wealth held in stocks.
• Polls show a divided electorate, with proponents framing the vote as resistance to federal cuts and opponents concerned about economic consequences; notable billionaire Jensen Huang supports paying higher taxes but stresses the importance of efficient use of tax dollars.
• If passed, Proposition 40 could set a precedent for other states, with advocates like Regan predicting it will inspire similar wealth tax initiatives nationwide, marking California as a trendsetter in tax policy.