Meta description: New York sued Kalshi over alleged illegal gambling, seeking to halt operations and penalties reported at up to $36 billion.
Tags: Kalshi, CFTC, New York Attorney General, New York State Gaming Commission, Letitia James
Market platform: Kalshi
Category: Regulation
New York Attorney General Letitia James sued Kalshi on July 31, 2026, alleging the CFTC-regulated prediction market exchange is operating an illegal gambling business in the state without a New York gaming license. The complaint seeks an injunction, restitution, disgorgement and civil penalties, with the Associated Press and Wall Street Journal reporting possible exposure of up to $36 billion.
What did New York allege against Kalshi?
James’s complaint alleges that Kalshi offers event contracts that amount to gambling under New York law when customers risk money on uncertain outcomes in sports, elections and entertainment. The attorney general says Kalshi has not obtained a license from the New York State Gaming Commission, the state agency that regulates licensed mobile sports wagering.
The lawsuit puts sports contracts at the center of the case. New York argues that Kalshi lets users take positions on game outcomes while avoiding the licensing, tax and consumer-protection framework that applies to legal sportsbooks in the state. The attorney general’s requested relief includes shutting down Kalshi’s New York operations, recovering alleged proceeds and imposing civil penalties.
The complaint also alleges that Kalshi allows customers as young as 18 to trade on the platform. New York’s legal mobile sports-betting market has a 21-year minimum age. James has framed that difference as a consumer-protection issue, arguing that event-contract platforms expose younger users to gambling risk without the safeguards imposed on licensed operators.
Kalshi disputes the state’s theory. In federal litigation against New York gaming officials, the company has argued that it operates as a designated contract market regulated by the Commodity Futures Trading Commission, and that state gambling regulators cannot override the federal regime for contracts listed on a CFTC-regulated exchange. Kalshi has described its platform as a marketplace for user-to-user trading on public events, not a traditional sportsbook.
Why does the $36 billion figure matter?
The $36 billion figure is reported potential exposure, not a court award. The Wall Street Journal reported that New York is seeking up to $36 billion in penalties, disgorgement and fines tied to Kalshi’s alleged New York activity. The Associated Press also described the penalties as potentially reaching $36 billion.
That distinction matters because the lawsuit is at the pleading stage. New York still must prove its claims, establish the scope of Kalshi’s activity in the state and persuade a court that the requested remedies are available under New York law. The number shows the scale of the state’s enforcement posture, but it is not a judgment.
The remedies sought by New York fit a broader state campaign against sports-linked event contracts. State officials argue those contracts compete with licensed sportsbooks while avoiding state gambling taxes and oversight. New York’s mobile sports-wagering tax rate is 51% of gross gaming revenue, one of the highest rates in the U.S.
What happened in Kalshi’s federal case against New York?
Kalshi sued New York gaming officials in October 2025 after the New York State Gaming Commission sent the company a cease-and-desist letter. The federal case is KalshiEX LLC v. Williams, case number 1:25-cv-08846, in the U.S. District Court for the Southern District of New York.
U.S. District Judge Analisa Torres denied Kalshi’s request for a preliminary injunction on July 7, 2026, according to the federal docket in KalshiEX LLC v. Williams. A July 13 amended order corrected a scrivener’s error, but did not change the outcome: Kalshi did not receive the preliminary federal shield it sought against New York regulators.
Torres rejected Kalshi’s argument that the Commodity Exchange Act preempts New York’s authority to apply state gambling law to Kalshi’s sports-event contracts. The opinion analyzed express preemption, field preemption and conflict preemption, and concluded that Kalshi had not shown that federal commodities law displaced New York’s traditional authority over gambling at the preliminary-injunction stage.
The court also rejected Kalshi’s irreparable-harm argument. Torres noted that Kalshi could seek a New York gaming license, a point that weakened the company’s claim that state enforcement would create harm that could not be remedied later. The ruling left New York’s enforcement position intact while Kalshi pursued an appeal.
What is the Second Circuit posture?
Kalshi appealed Torres’s ruling to the U.S. Court of Appeals for the Second Circuit. The Times Union reported that U.S. Circuit Judge Myrna Perez denied Kalshi’s request for temporary administrative relief and referred the matter to a three-judge panel. That order was procedural, not a full appellate ruling on the merits.
The Second Circuit has not issued a merits decision resolving whether New York gambling law is preempted by the Commodity Exchange Act as applied to Kalshi’s sports-event contracts. The current New York ruling is a district-court decision from the Southern District of New York. The appeal will determine whether the Second Circuit agrees with Torres’s view of federal commodities law and state gambling authority.
New York’s July 31 lawsuit raises the pressure on that appeal because the state is now pursuing affirmative civil enforcement while also defending against Kalshi’s federal preemption challenge. For the prediction-market industry, the core issue is no longer abstract: a federally registered exchange is facing a state case seeking both an operational halt and large monetary remedies.
How does New York compare with New Jersey?
New York’s district-court ruling points in the opposite direction from Kalshi’s win in New Jersey. On April 6, 2026, a divided Third Circuit panel affirmed preliminary relief blocking New Jersey regulators from enforcing state gambling laws against Kalshi’s sports-event contracts in KalshiEX LLC v. Flaherty, No. 25-1922.
The Third Circuit treated Kalshi’s sports-related event contracts as swaps under the Commodity Exchange Act and found that state enforcement was likely preempted at that stage. That decision supports Kalshi’s national argument that a CFTC-regulated exchange should not need separate state gambling licenses for sports-event contracts listed on its market.
New York argues the opposite. Its position is that federal derivatives regulation does not erase state gambling authority, especially where the products resemble sports wagers offered to retail users. The result is a growing state and federal court conflict over how far CFTC oversight reaches when event contracts track sports outcomes.
What is happening in other states?
The fight extends beyond New York and New Jersey. Massachusetts sued Kalshi in 2025 over alleged illegal sports betting, and James joined a bipartisan coalition of 38 attorneys general in April 2026 supporting Massachusetts’ case. In that amicus filing, the attorneys general argued that the Commodity Exchange Act does not silently legalize sports betting nationwide through federally regulated event contracts.
Other state disputes have reached federal court as regulators tried to restrict Kalshi or similar prediction-market activity. Public filings and reporting have identified litigation involving Arizona, Connecticut and Illinois, reflecting a broader clash between state gambling regulators and the CFTC’s role as the federal regulator of designated contract markets.
Nevada has been another major front. The Nevada Gaming Control Board issued enforcement warnings involving prediction-market sports contracts, and litigation followed. In July 2026, the Nevada Supreme Court denied Kalshi’s emergency request for a stay, leaving in place a lower-court order requiring geofencing while the case continued. That was not a final merits ruling on a statewide ban.
Minnesota produced a different result. A federal court there granted preliminary relief blocking state enforcement against Kalshi, according to the Associated Press. The split outcomes show how uneven the legal map has become, with similar products receiving different treatment depending on the state, court and procedural posture.
What legal question comes next?
The central legal question is whether the Commodity Exchange Act gives CFTC-regulated exchanges room to list sports-linked event contracts nationwide, or whether states can still apply gambling laws to those products inside their borders. Kalshi says federal law controls. New York says state gambling law still applies.
For New York, the practical stakes include control over one of the country’s most valuable online sports-betting markets and the tax revenue tied to licensed operators. For Kalshi and other prediction-market operators, the stakes are national scale. A state-by-state licensing requirement would make sports-event contract expansion look more like sports betting, with separate compliance obligations in each jurisdiction.
The next concrete milestone is Kalshi’s appeal in the Second Circuit from Torres’s July 7 ruling in KalshiEX LLC v. Williams, case number 1:25-cv-08846. Until the appellate court rules, New York’s July 31 enforcement lawsuit and Kalshi’s federal preemption challenge will move on parallel tracks.
