Polymarket and Kalshi in California
Current access status and legal context for prediction market users in California. Kalshi is available under federal CFTC authority; Polymarket geoblocks all US residents.
Short answer for California residents: Polymarket geoblocks US IPs; users typically access it via a VPN and crypto deposits (no KYC at signup). Kalshi is the CFTC-regulated US exchange available under federal designation regardless of state law.
Polymarket in California
Blocked. Polymarket geoblocks California residents along with all US IPs. Using a VPN is technically possible but violates Polymarket terms and carries KYC risk.
Access via VPN and crypto deposits is the typical US-user path. Polymarket does not require KYC at signup — identity checks trigger only at large fiat offramps, where US IDs can lead to account restriction. Gains are US-taxable; Polymarket does not issue 1099s.
Kalshi in California
Available. Kalshi operates in California under federal CFTC DCM designation; the California Gambling Control Commission has not moved to challenge this federal preemption.
PredictIt in California
Available.
California sports betting law
No legal online sportsbooks. 2022 Propositions 26 and 27 both failed.
State gambling law
California Penal Code §330–337 restricts gambling. Card rooms and tribal casinos exist under separate framework.
For federally-designated contract markets (DCMs) like Kalshi, the Commodity Exchange Act and CFTC jurisdiction provide preemption over state gambling statutes. This means Kalshi operates legally in California even though the state itself may restrict unlicensed online gambling.
Tax treatment in California
State income tax up to 13.3%; federal ordinary income. California residents pay some of the highest effective rates on prediction market gains.
Kalshi issues IRS Form 1099 to customers whose gains exceed reporting thresholds. Gains are federal ordinary income and flow through to California state income tax (where applicable). For detailed tax planning, see our sister site polytaxes.com.
Common questions from California users
Can I use Polymarket from California with a VPN?
Yes, technically — and the typical US-user path. A non-US IP via VPN plus crypto deposits (USDC on Polygon) gets you a working Polymarket account with no KYC at signup. KYC triggers at fiat offramps, where a US ID can result in restrictions. Keep withdrawals to self-custody crypto wallets if you want to avoid that.
Does Kalshi report my gains to the IRS?
Yes. Kalshi issues 1099s. Gains are federal ordinary income or short-term capital gains depending on activity.
Does Polymarket report my gains to the IRS?
No 1099 from Polymarket. US users are personally responsible for reporting gains.
What happens if California passes its own prediction-market rule?
State-level rules cannot override federal CFTC designation for event contracts — this is the preemption question at the heart of several 2024–2026 court cases between Kalshi and various state regulators. Kalshi has consistently prevailed at federal court level.
Related states
Last verified: April 16, 2026. Nothing on this page constitutes legal or tax advice.