New York Sues Kalshi for Illegal Gambling, Seeking Billions in Penalties

A New Jersey attempt to ban Kalshi was overturned by a U.S. Circuit Court of Appeals judge in April 2026.
New York's lawsuit seeks to forfeit Kalshi's illegal gains, order restitution to harmed users, and impose fines equal to three times the gains (potentially about $36 billion).
Donald Trump Jr. serves as an advisor to both Polymarket and Kalshi, underscoring political connections between the platforms and the Trump circle.
Kalshi is described as a federally licensed exchange regulated by the CFTC, in contrast to Polymarket, which is not presented as similarly regulated.
The CFTC has filed an emergency motion arguing that state actions against Kalshi could cause irreparable harm and that the CFTC is the sole regulator of prediction markets.
New York has filed a $36 billion lawsuit against prediction market company Kalshi, calling it an illegal gambling operation. Governor Kathy Hochul and Attorney General Letitia James announced the suit, accusing Kalshi of taking bets on uncertain events without a New York license and allowing users under 21 to place wagers, according to Herald Sun.
New York is asking a court to shut Kalshi down in the state. The lawsuit seeks to claw back all illegal gains, pay restitution to harmed users, and impose fines of $100,000 per illegal bet — plus treble damages that could push the total to roughly $36 billion, Bradenton reported.
New York argues that Kalshi's bets hinge on uncertain events outside a bettor's control — the legal definition of gambling under state law. The state also says Kalshi never got a license from the New York State Gaming Commission. That makes every trade on the platform an illegal wager, according to Black Chronicle.
Regulators also raised alarms about underage access. State law bars gambling for anyone under 21. New York says Kalshi failed to keep young users off the platform. The suit adds tax compliance failures to the list of charges, arguing the company skirted rules that licensed gambling operators must follow.
Kalshi pushed back hard. The company says it is a federally licensed exchange, regulated by the U.S. Commodity Futures Trading Commission, or CFTC. It compares itself to a stock market, not a casino. Kalshi called the New York action political theater designed to protect casino industry profits, AOL reported.
The CFTC backed Kalshi's position. The agency filed an emergency motion arguing that state actions against Kalshi could cause irreparable harm. The CFTC says it — not state gaming commissions — is the sole regulator of prediction markets. That federal-versus-state clash is now at the heart of the legal fight.
New York is not the first state to go after Kalshi. New Jersey tried to ban the platform, but a U.S. Circuit Court of Appeals judge overturned that ban in April 2026. That ruling gave Kalshi a major legal win and set a precedent that state regulators are now trying to work around, according to Ledger-Enquirer.
Other states are watching closely. The outcome in New York could shape whether prediction markets operate freely nationwide or face a patchwork of state bans. Kalshi also has political connections — Donald Trump Jr. serves as an advisor to both Kalshi and rival platform Polymarket, adding a charged backdrop to the legal battle.
The New York case cuts to a core question: is trading on event outcomes investing or gambling? Kalshi says it is investing, covered by federal law. New York says it is gambling, covered by state law. The answer could define how a fast-growing industry worth billions is regulated going forward, AOL reported.
If New York wins, Kalshi could face $36 billion in damages — a sum that would effectively end its U.S. operations. If Kalshi wins, it could open the door for prediction markets to expand in states that have tried to shut them out. The CFTC's emergency motion means federal courts may weigh in before any state judge rules.
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