New York sues Kalshi, calling its prediction markets illegal gambling
The state's petition asks a New York court to shut an exchange the CFTC licenses, with remedies one report reckons could pass $36bn, and puts the sharpest question yet to the federal footing of event contracts.
What happened
Governor Kathy Hochul and Attorney General Letitia James announced on 31 July that New York has sued KalshiEX LLC, with the petition filed in the Supreme Court of the State of New York, New York County. The state alleges Kalshi runs an unlicensed gambling business: it offers wagers on outcomes outside bettors' control without a Gaming Commission licence, admits users aged 18 to 20 against the state's 21-year minimum, and evades the tax obligations licensed operators carry. The petition seeks an order ending unlicensed operations, forfeiture of gains, treble damages, restitution and civil fines. Covers reports the filing's remedies, including a $100,000 penalty for each unauthorised sports betting offer, could exceed $36bn if the state prevailed in full. Kalshi called the suit 'political theater' and said states 'can't just shut down a federally licensed exchange'.
Why it matters
Whether event contracts are derivatives under exclusive federal jurisdiction or gambling under state law decides which economics governs them, and this suit forces the question in the largest state market. New York moves from defence to attack: its Gaming Commission issued a cease-and-desist in October 2025, a federal court in New York ruled against Kalshi's challenge to that order in early July, and the Attorney General sued Coinbase and Gemini on the same theory in April. The suit lands while the CFTC's public-interest rulemaking on event contracts is still open, so the federal perimeter the state is testing is itself unsettled.
What is not settled
The courts disagree: the Third Circuit held in April 2026 that federal commodities law preempts state gaming law for sports contracts, while the New York federal court ruled for the state's regulator in July. Sources also differ on scale, with NY1 reporting the remedies without figures and Covers putting the filing's arithmetic above $36bn. Kalshi has not yet filed its response.
Institutions in this story
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New York Attorney General
Regulator
Filed the verified petition against KalshiEX LLC on 31 July 2026 in the Supreme Court of the State of New York, New York County, jointly announced with Governor Hochul, seeking a permanent injunction, an accounting, restitution, disgorgement and civil penalties under the state gambling statutes.
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Kalshi
Exchange
The designated contract market at the centre of it, whose whole listing practice rests on the Commodity Exchange Act reading that its event contracts are federally regulated swaps rather than wagers; it called the suit political theater and says a state cannot shut a federally licensed exchange.
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Commodity Futures Trading Commission
Regulator
Licenses the venue New York is asking a state court to close, and its own public-interest rulemaking on event contracts is still open, so the federal perimeter the state is testing has not been drawn yet.
On the record
New York sues Kalshi, alleging an unlicensed gambling operation
Governor Kathy Hochul and Attorney General Letitia James announced on 31 July 2026 that New York had petitioned the Supreme Court of the State of New York, New York County, against KalshiEX LLC, alleging that its sports event contracts amount to an unlicensed gambling business under state law: wagers on outcomes outside the bettor's control without a Gaming Commission licence, users admitted from the age of 18 against a state minimum of 21, and none of the tax obligations licensed operators carry. The petition seeks an injunction, forfeiture of gains, treble damages, restitution and civil penalties.