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Billionaire one-time wealth tax passes in California election 2026?
polymarket
kalshi
predict

Billionaire one-time wealth tax passes in California election 2026?

Total volume:
$5,673,760
Volume 24h:
$17,190
53%
Liquidity:
$77,650
5%
Open interest:
$717,375
1%

In 2026

all

3 markets

Kalshi

Predict

Polymarket

consensus

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolves Nov 4, 2026

Time left: 11d:20h:04m

Will a one-time tax on billionaires ballot initiative in California pass?

24%chance
Amount

$

Trade on
kalshi

Trade on Kalshi

Join Kalshi and score $25 for your first trade.At 25¢ buys you 400 shares | Odds: 24% Total Payout: $400 | Net Profit: $300 Multiplier: 4.00x | ROI: 300% APY not meaningful 11 days to resolution
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Outcome
Trade
Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
kalshi

In 2026

Trade
24%
1%
Yes 25¢No 76¢
1¢
N/A
$1,722,500
0.7%
5%
$717,375
1w 4d 20h
active
predict

Billionaire one-time wealth tax passes in California election 2026?

Trade
23%
Yes 24¢No 78¢
2¢
$4,283
$5,644
0%
0%
N/A
1w 5d 13h
active
polymarket

Billionaire one-time wealth tax passes in California election 2026?

Trade
22%
Yes 23¢No 79¢
2¢
$73,366
$3,945,616
0.13%
0.56%
N/A
1w 5d 10h
active
PredictionHero
PH Consensus
22.6%
Yes 24¢No 77.7¢
Avg: 1.7¢Max: 2¢
Total markets: 3

Intro

This market tracks whether California voters will approve a one-time wealth tax on billionaires in the November 2026 election. Currently, the consensus probability of the ballot initiative passing is 23.0%. This forecast aggregates data from Polymarket, Kalshi, and Predict, and will resolve based on official information from the Government of the State of California, with a consensus of credible reporting used as a secondary source. The resolution will hinge on whether a qualifying ballot initiative appears on the ballot by the cutoff date, and ultimately passes in the November 3, 2026 California election, so watch for updates on ballot qualification status as they become available.

PredictionHero - Resolution Divergence Alerts (RDA)

Unified Resolution Criteria (Consistent across platforms)

All three platforms (Polymarket, Kalshi, and Predict) share identical resolution criteria regarding the passing of a one-time wealth tax on billionaires in the 2026 California election.Primary resolution logic: Official information from the Government of the State of California, with a consensus of credible reporting used as a secondary source.

Core resolution logic:

  • A one-time wealth tax targeting individuals with at least $1 billion in wealth must pass in the November 3, 2026 California election for the market to resolve 'Yes'.
  • If no qualifying ballot initiative is certified by June 25, 2026, or if a qualifying initiative is removed or amended to lower the wealth threshold, the market will resolve 'No'.

Edge cases & clarifications:

  • Initiative Withdrawal: If a qualifying initiative is withdrawn by its proponents before the election, the market will resolve to 'No'.
  • Amendment Below Threshold: If a qualifying initiative is amended to tax individuals with less than $1 billion in wealth, the market will resolve to 'No'.
  • Tie Vote: In the event of a tie vote on the ballot initiative, the market will resolve to 'No', as a tie does not constitute passage.
Timing: The market will resolve upon the official certification of the election results by the Government of the State of California, expected in late November/early December 2026.Our PredictionHero Resolution Divergence Alerts (RDA) are there to help users identify potential differences across platforms. They do not replace or supersede the official rules and description of any prediction market. Users are solely responsible for reviewing and understanding the applicable rules and resolution criteria before placing any trade or bet. If you notice a potential inconsistency, discrepancy, or error in an alert, please report it to our team so we can review and improve the accuracy of our data.

Polymarket

A one-time wealth tax on billionaires has been proposed to potentially appear on California's ballot for the November 3, 2026 general election. You can read more about that here: https://6abc.com/post/california-union-proposes-taxing-billionaires-offset-medicaid-cuts-low-income-people/18066430/ This market will resolve to "Yes" if any proposition containing a one-time tax targeting individuals, households, or family units with wealth, assets, or net worth of at least $1 billion (USD or equivalent) passes in the named election. Otherwise, this market will resolve to "No". If no qualifying ballot initiative is certified to appear on the official statewide California ballot as a proposition to be voted on in the stated election by June 25, 2026, 11:59 PM ET (the official cutoff date for new initiatives to be approved), or if all qualifying propositions/initiatives are removed from the ballot or amended before the election such that the main threshold drops below $1 billion, this market will resolve "No". The primary resolution source for this market will be official information from the Government of the State of California, however a consensus of credible reporting may also be used.

Kalshi

If a one-time tax on billionaires ballot initiative in California passes, then the market resolves to Yes.

Predict

A one-time wealth tax on billionaires has been proposed to potentially appear on California's ballot for the November 3, 2026 general election. You can read more about that here: https://6abc.com/post/california-union-proposes-taxing-billionaires-offset-medicaid-cuts-low-income-people/18066430/ This market will resolve to "Yes" if any proposition containing a one-time tax targeting individuals, households, or family units with wealth, assets, or net worth of at least $1 billion (USD or equivalent) passes in the named election. Otherwise, this market will resolve to "No". If no qualifying ballot initiative is certified to appear on the official statewide California ballot as a proposition to be voted on in the stated election by June 25, 2026, 11:59 PM ET (the official cutoff date for new initiatives to be approved), or if all qualifying propositions/initiatives are removed from the ballot or amended before the election such that the main threshold drops below $1 billion, this market will resolve "No". The primary resolution source for this market will be official information from the Government of the State of California, however a consensus of credible reporting may also be used.

Frequently asked questions

This dashboard tracks the consensus view on whether a billionaire one-time wealth tax will pass in California in the 2026 election, aggregating data from multiple prediction markets. Currently, the combined volume across Polymarket and Kalshi exceeds $5,673,760, with $13,715 traded in the last 24 hours. The dashboard provides a weighted average of probabilities from these platforms, offering a comprehensive look at expectations. The current spread between Polymarket and Kalshi is 2.0 percentage points, indicating a degree of uncertainty among traders regarding this market.

Prediction market odds often provide a different perspective than traditional polling data. While polls capture stated preferences, this market reflects what individuals are willing to *wager* on, potentially revealing more about deeply held beliefs and perceived likelihoods. Polling averages may show support or opposition to a wealth tax, but this market assesses the probability of actual passage, factoring in political maneuvering, fundraising, and unforeseen events. It’s important to remember that prediction markets are forward-looking, while polls are a snapshot in time. Discrepancies can arise due to differing methodologies and information access.

Prices on Polymarket and Kalshi can diverge due to several factors. Each platform has a different user base, trading dynamics, and liquidity. Polymarket and Kalshi can show different implied probabilities for the same outcome because of liquidity, fee structure, participant mix, and how each venue defines the contract. Furthermore, differing market-making strategies and the presence of informed traders on one platform versus the other can influence price discovery. Currently, Polymarket currently favors the outcome of the tax passing at 22.0%, while Kalshi leans toward the tax failing to pass at 24.0%. These differences highlight the inherent uncertainty and varying interpretations of available information within each market.

This market resolves around Nov 4, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Resolution will be based on whether a ballot initiative proposing a one-time wealth tax on California billionaires is approved by voters in the 2026 election. The outcome will be determined by official election results certified by the state of California. Traders should monitor news sources and official election websites for updates as the election approaches and for final confirmation of the results.

Several key events could significantly impact this market. Major shifts in California’s economic conditions, changes in public opinion regarding wealth inequality, and the emergence of prominent supporters or opponents of the tax could all move the odds. Significant fundraising efforts by either side, legal challenges to the ballot initiative's qualification, and endorsements from influential political figures are also potential catalysts. Unexpected political developments or scandals involving key stakeholders could also introduce volatility into this market, shifting trader sentiment and influencing prices.