New York Attorney General Letitia James filed a state-court complaint against Kalshi at the stroke of midnight on Friday, seeking $36 billion in damages and accusing the platform of operating a gambling business without a licence. The lawsuit lands hours after both the District Court and the Second Circuit denied the company emergency injunctive relief, removing the last legal shield that had kept state enforcement at bay.
New York Attorney General Letitia James filed a state-court complaint against Kalshi at the stroke of midnight on Friday, seeking $36 billion in damages and accusing the platform of operating a gambling business without a licence. The lawsuit lands hours after both the District Court and the Second Circuit denied the company emergency injunctive relief, removing the last legal shield that had kept state enforcement at bay.
The state of New York filed a civil enforcement petition against Kalshi in state court at 12:01 a.m. on 1 August 2026, minutes after the contractual standstill that had protected the company from state enforcement expired. The filing follows decisions by both the US District Court for the Southern District of New York and the US Court of Appeals for the Second Circuit to deny Kalshi emergency injunctive relief, clearing the path for Governor Kathy Hochul and Attorney General Letitia James to proceed.
The complaint, filed by James's office, characterises Kalshi's platform as "quintessentially gambling", defining it as a service that allows a bettor to stake money on the outcome of a future contingent event not under the bettor's control, in exchange for a potential return. According to the petition, Kalshi has operated this service without a New York gambling licence, and has offered contract types, including bets on in-state college sports teams and wagers tied to elections and cultural events, that are prohibited under New York's existing sports betting framework.
The damages arithmetic is stark. New York law permits the state to claim three times an illegal operator's gains from its unlicensed activity, plus $100,000 for every bet placed by a New York user. The state has calculated the cumulative value of those penalties at $36 billion. That figure dwarfs Kalshi's total fee revenue since launch, which according to the source material stands at approximately $1.6 billion before costs, and substantially exceeds the company's last publicly reported fundraising valuation of $22 billion.
Governor Hochul framed the action in terms of competitive equity and consumer protection. "Kalshi has chosen to ignore New York's gaming laws, which exist to protect consumers, prevent problematic gambling, deliver funding for critical public services, and ensure that every company plays by the same rules," she said in a statement released alongside the filing. "No company is above the law."
Bill Miller, president and chief executive of the American Gaming Association, supported the lawsuit, stating that a "massive, bipartisan coalition of attorneys general" had already concluded that sports betting on prediction-market platforms is illegal, and estimating that prediction-market activity has removed more than $1.2 billion in gaming tax revenue from state and tribal programmes across America.
Kalshi responded within hours by moving to have the case transferred to federal court, an approach the company has pursued in virtually every state enforcement action it has faced. The company's central argument remains that the Commodity Exchange Act (CEA), which governs federally regulated event contracts, preempts state gambling law, making federal court the appropriate and exclusive forum. The CFTC issued a statement warning that state enforcement could "bring entire federally regulated markets to the brink of destruction", reflecting the continuing divide between federal market regulators and state gambling authorities over which legal framework governs prediction-market activity.
Every state court that has heard a case involving Kalshi's sports event contracts has ruled against the company. Courts in Washington and Michigan have each found that Kalshi likely operated unlicensed gambling, with the Washington decision explicitly blocking the platform pending further proceedings and the Michigan court ordering a halt to sports event contracts. Federal courts, by contrast, have been more divided, with some accepting the CEA preemption argument in narrow procedural contexts. New York's decision to proceed in state court, rather than waiting for the federal appellate process to resolve the preemption question, reflects a deliberate strategic calculation: state judges have consistently been less receptive to arguments that federal commodity law displaces state gambling authority.
Kalshi's removal motion, in which it argues the CEA establishes a mandatory federal forum, faces a higher legal bar than the injunction standard it has already failed to clear. The company's track record on removal motions in other state actions has been uniformly unsuccessful, which is why the New York filing, regardless of its eventual outcome on the merits, represents an immediate operational and reputational escalation for a platform currently targeting a $40 billion valuation.
The $36 Billion Figure Is a Legal Mechanism, Not a Settlement Number, but It Reframes the Risk
The penalty calculation that produces $36 billion is a statutory formula rather than a figure New York expects to collect in full. Its function is to establish the outer boundary of liability and to signal the scale of the state's claimed harm, which is precisely why it matters commercially. For a company that has raised capital at a $22 billion valuation, a credible state-court claim that its aggregate liability could exceed that valuation by a factor of more than one and a half is a material disclosure risk. Investors and prospective employees will price that uncertainty, and the company's ambition to close a funding round at a $40 billion valuation becomes considerably harder to execute while a nine-figure enforcement action sits unresolved in state court. The figure also anchors the public and political narrative: it is now the number attached to the Kalshi story in every state legislature considering how to respond to prediction-market growth.
The Tax-Revenue Argument Is the Most Potent Political Weapon
The American Gaming Association's estimate that prediction markets have siphoned more than $1.2 billion in gaming tax revenue from US states and tribes introduces a fiscal dimension that regulatory and legislative debates have until now treated as secondary. States are not acting solely to protect consumers or uphold licensing integrity; they are defending a tax base that funds public services, and New York's complaint makes that explicit in the governor's statement. That argument resonates across party lines in a way that abstract jurisdictional disputes do not, and it explains the bipartisan character of the multi-state attorney-general coalition that has been building around this issue. The fiscal case for enforcement is, if anything, stronger than the consumer-protection case in a political environment where gaming tax receipts are already a significant budget line in most large states.
Preemption Will Eventually Need a Federal Resolution, but States Are Not Waiting
The core legal question, whether the CEA's framework for federally regulated event contracts displaces state gambling licensing requirements, is one that federal appellate courts and potentially the Supreme Court will ultimately have to resolve definitively. Kalshi's appeal to the Second Circuit keeps that process alive, and the CFTC's public intervention on the company's behalf indicates that the federal regulatory apparatus is not a neutral bystander. But the accumulation of state-court losses, combined with enforcement actions in Nevada, Washington, Michigan, and now New York, means Kalshi is fighting on multiple fronts simultaneously with no guarantee that a favourable federal ruling arrives before a state court issues a judgment that imposes real financial consequences. The practical result is that a company built on the premise of operating as a federally regulated exchange is now subject to a legal environment that looks, in practice, increasingly like state-by-state gambling regulation, the outcome its federal strategy was designed to prevent.
