Prediction market guides for Californians

Plain-English guides for California traders: how event contracts work, which apps are available, taxes, deposits, withdrawals and what to trade.

Updated

For the apps and offers in one place, start with California prediction markets.

Plain-English guides to event contracts, probability pricing, California tax treatment, and which platform to use for which event, written for California traders.

Prediction-market basics

How do prediction markets work?

You buy a yes-or-no contract that pays $1 if the outcome happens. The price (e.g. 62¢) reflects the market's estimate of the probability. Sell anytime before the event resolves to lock in profit or limit loss.

Are prediction markets legal in California?

Available — dispute pending (as of October 3, 2026). Kalshi, Polymarket US, ProphetX and OG are CFTC-regulated exchanges that accept eligible Californians, but courts are still deciding whether state gambling law applies to sports contracts. See Are prediction markets legal in California?

How are winnings taxed in California?

They're taxable at both the federal and California state level; the IRS hasn't said how event contracts are classified. Kalshi provides a profit-and-loss statement for your trades; report your profit whether or not you get a form. Track every trade for cost basis.

Where should I start?

Open a Kalshi account, fund $20-$50, and trade two or three small markets you actually have an opinion on. Read our event-contracts guide before you place your first trade.

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Kalshi withdrawal limits, fees and timing (2026)

Kalshi sets a personal daily withdrawal limit for each account and doesn't publish a fixed amount; for debit cards it rises with account activity. Withdrawals are free. Bank transfers usually arrive within a few business days, debit-card withdrawals within a few hours. Last checked October 22, 2026.

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The Pitt won Outstanding Drama at the 2026 Emmys at 97.2% Gold Derby probability. The 2027 race is wide open: Severance season 3, The Pitt season 2, House of the Dragon season 3, and Pluribus all in play. Here's how to trade it from California.

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Recession Odds 2026: Trading the NBER Contract from California

Polymarket's 'US recession in 2026' contract trades at 22-34% YES, well above the unconditional 15% base rate. For California traders whose payrolls run 1.4-1.8x the national beta, recession YES is the cleanest macro hedge on the board.

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California votes on Tuesday, 3 November 2026. The governor's race is Democrat Xavier Becerra against Republican Steve Hilton. There are 14 statewide propositions, and Los Angeles has a mayor runoff between Karen Bass and Nithya Raman. Polls close at 8 p.m. PT. California counts mail ballots for days, so close races can take a week or more to call. We add each result here as it's called, with the source.

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