From Fortune · Jason Ma · · 1m 40s
California's billionaire tax sparks wealth tax debate
Proposition 40 would tax billionaires' assets once, but opponents fear it opens the door to taxing all Californians.
In brief
Proposition 40 would tax billionaires' assets once, but opponents fear it opens the door to taxing all Californians. California's Proposition 40 seeks a one-time five percent wealth tax on billionaires to raise one hundred billion dollars, but critics warn it could become a template for broader taxation. Originally…
California's revenue problem
The top one percent of California households pay forty to fifty percent of all personal income tax revenue, making state finances vulnerable to stock market swings.
The billionaire tax proposal
Proposition forty would impose a one-time five percent tax on the assets of residents worth more than one billion dollars, potentially raising one hundred billion dollars.
The Trojan horse fear

Opponents call Prop forty a Trojan horse, warning that the state legislature could modify it with a two-thirds vote, potentially expanding the tax to all Californians.
“Trojan horse”
Courts have split on changes
California courts have both upheld and struck down amendments to ballot measures. In nineteen ninety-five, the state Supreme Court allowed changes if they advanced voters' original intent.
Nobel economists back the tax
Six Nobel laureate economists including Paul Krugman and Joseph Stiglitz signed a letter saying billionaires have been amply rewarded and used loopholes to avoid taxes on capital returns.
“amply rewarded”
Silicon Valley splits on the measure
Governor Gavin Newsom opposes Prop forty, while Nvidia CEO Jensen Huang said he is perfectly fine with it. Google cofounder Sergey Brin contributed over one hundred million dollars opposing it.
“perfectly fine”
Competing ballot measures complicate vote
Proposition forty-one and Proposition forty-two would limit or prohibit new taxes. A recent poll from the Public Policy Institute of California found all three measures have majority voter support.
The main idea
California's Proposition 40 seeks a one-time five percent wealth tax on billionaires to raise one hundred billion dollars, but critics warn it could become a template for broader taxation.

