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 Oct 29, 2026

Topics

Offer terms

Certain limitations apply. The offer is available to new users only, subject to the terms and conditions at kalshi.com/tc/500. 18+ only. Restrictions and eligibility requirements apply. Event contract trading involves significant risk and is not appropriate for everyone. Please carefully consider if it is appropriate for you in light of your personal financial circumstances. Kalshi products are not available in all jurisdictions. See kalshi.com/regulatory for more information.

18+ Only. Restrictions and eligibility requirements apply. Not available in all jurisdictions. Trading is risky. 100% loss can occur. See polymarket.com/tos for more information. The Polymarket US App serves as an independent software provider and affiliate of Polymarket US and Polymarket Clearing, the CFTC-regulated exchange and clearing organization.

Guides

Recap: Lakers 2026 NBA Playoffs: How to Trade the Run on Prediction Markets

The Lakers are the West's 4-seed, opening the 2026 NBA playoffs against the Houston Rockets on April 18. California has no legal online sportsbook. But prediction markets are federally regulated and available to every California resident. Here's how to trade it.

Catie Di Stefano Updated Oct 1, 2026

Recap: Lakers 2026 NBA Playoffs: How to Trade the Run on Prediction Markets

Get the California markets digest