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Events
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California Retroactive Tax Prohibition Proposition

California Retroactive Tax Prohibition Proposition
Vol

PM $98

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Events

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Markets

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Current odds

Snapshot from

As of Oct 20, 2026, 6:00 PM UTC, Yes is priced at 69.5% on Polymarket.

Polymarket

  1. Yes69.5%

Yes prices. They are not order quotes; check each platform's rules, fees and live prices before trading.

AI Analysis

Trader mode: Market mechanics, assumptions and risks

PM $98

Reported volume · provider units

1

Saved contracts

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Same-question pairs

Source snapshot: Oct 20, 2026, 6:00 PM UTC

About This Event

Proposition 42 is a California ballot measure currently scheduled for voting on November 3, 2026. It would prevent retroactive taxes and new taxes on personal property, which would offset the proposed wealth tax in Proposition 40. This market will resolve to “Yes” if the specified ballot measure is approved by a majority of voters at the California statewide general election currently scheduled for November 3, 2026. Otherwise, this market will resolve to “No.” If voting on the specified ballot measure does not occur, or the results thereof are not known definitively, by March 31, 2027, this market will resolve to “No”. This market will resolve based on a consensus of credible reporting. If there is ambiguity, this market will resolve solely based on official information from the State of California, including the California Secretary of State (https://www.sos.ca.gov/).

AI-generated analysis based on market data. Not financial advice.

AI-written background. References identify the evidence used; Wikipedia links under Learn More are additional reading. Prices and provider rules are dated snapshots. This is not financial advice.

Prices are catalog snapshots and may have changed. Check each market's rules and observation time.

KalshiPolitics
California Proposition 40 election: Yes vote percent

California Proposition 40 election: Yes vote percent

K 256.99 contracts
Will Yes receive at least 38% of the popular vote in the 2026 California Proposition 40 election?Yes 65%
Will Yes receive at least 58% of the popular vote in the 2026 California Proposition 40 election?Yes 50%
Will Yes receive at least 56% of the popular vote in the 2026 California Proposition 40 election?Yes 50%
+8 moreNext deadline Nov 3, 2027 UTC
KalshiPolitics
California Proposition 40 election margin of victory? (Yes)

California Proposition 40 election margin of victory? (Yes)

K 22.3K contracts
Will the margin of victory for Yes in the 2026 California Proposition 40 election be at least 1%?Yes 25%
Will the margin of victory for Yes in the 2026 California Proposition 40 election be at least 4%?Yes 14%
Will the margin of victory for Yes in the 2026 California Proposition 40 election be at least 7%?Yes 8.5%
+5 moreNext deadline Nov 3, 2027 UTC
KalshiPolitics
California Proposition 40 election margin of victory? (No)

California Proposition 40 election margin of victory? (No)

K 21.3K contracts
Will the margin of victory for No in the 2026 California Proposition 40 election be at least 1%?Yes 65.5%
Will the margin of victory for No in the 2026 California Proposition 40 election be at least 4%?Yes 51%
Will the margin of victory for No in the 2026 California Proposition 40 election be at least 7%?Yes 32.5%
+5 moreNext deadline Nov 3, 2027 UTC
PolymarketPolitics
California Higher Local Tax Vote Threshold Proposition

California Higher Local Tax Vote Threshold Proposition

PM $4.0K
California Higher Local Tax Vote Threshold PropositionYes 27%
1 mktNext deadline Nov 4, 2026 UTC
PolymarketPolitics
California High-Earner Permanent Tax Proposition

California High-Earner Permanent Tax Proposition

PM $4.0K
California High-Earner Permanent Tax PropositionYes 92.5%
1 mktNext deadline Nov 4, 2026 UTC
PolymarketPolitics
California Tax Spend Audit Proposition

California Tax Spend Audit Proposition

PM $1.5K
California Tax Spend Audit PropositionYes 75.5%
1 mktNext deadline Nov 4, 2026 UTC

Market Insights

Price gaps of 2 pp+

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Same-question pairs

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No outcomes on this page have been reviewed as the same question on both platforms yet.

Price differences do not establish arbitrage. Check each pair's review, current order prices, fees and settlement rules.

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