New York just went nuclear on Kalshi's entire business
Key Points
- New York sued Kalshi on July 31, alleging that its event contracts constitute illegal gambling offered without a state gaming license.
- The state wants to prohibit Kalshi from operating an alleged gambling business “within or from” New York, where the company is headquartered.
- The requested relief includes customer restitution, disgorgement, triple Kalshi’s alleged gains and a $100,000 penalty for each unauthorized sports-wagering offer.
- Court filings reportedly estimate the potential financial exposure at approximately $36 billion, although no damages have been awarded.
New York Targets Kalshi’s Business From Its Home State
New York Gov. Kathy Hochul and Attorney General Letitia James sued KalshiEX LLC on July 31, accusing the company of operating an illegal, unlicensed gambling business through its prediction markets.
The verified petition filed by James’ office argues that Kalshi’s Yes-or-No event contracts meet New York’s definition of gambling because users risk money on uncertain outcomes outside their control. It alleges violations of the state constitution, New York penal and racing laws, and the federal Wire Act.
Kalshi is registered with the Commodity Futures Trading Commission as a designated contract market. Its central legal position is that event contracts listed on a federally regulated exchange fall under the CFTC’s exclusive jurisdiction, preventing individual states from treating those contracts as unlicensed gambling.
State Allegations Extend Beyond Sports Contracts
The lawsuit focuses heavily on Kalshi’s sports products, which the company began offering in January 2025. New York alleges that Kalshi has accepted sports wagers without a state license, offered markets involving New York college teams and allowed users between 18 and 20 to participate even though the state’s minimum age for mobile sports betting is 21.
The state also argues that Kalshi avoids obligations imposed on licensed sportsbooks, including regulatory controls and New York’s approximately 51% tax on mobile sports-wagering gross revenue. Licensed operators generated roughly $2 billion in gross gaming revenue and paid more than $1 billion in state taxes during 2024, according to figures cited in the petition.
“New York’s gambling laws protect children from underage betting and help combat gambling addiction,” James said in the state’s announcement of the lawsuit.
No matter what they call themselves, prediction markets like Kalshi are gambling platforms, plain and simple.
The requested injunction reaches contracts relating to sports, culture, elections and other events. New York is therefore asking the court for authority that could cover most of Kalshi’s consumer-facing exchange rather than a limited prohibition on game-winner or player-prop markets.
Requested Penalties Could Reach Billions
New York is asking Kalshi to identify its customers and provide an accounting of bets placed, customer losses and gains received by the company. The state also seeks full customer restitution, disgorgement of amounts obtained through the alleged violations, damages and a penalty equal to three times Kalshi’s gains.
For unauthorized sports wagering, the petition requests an additional $100,000 for every offer or attempted offer made “within or from” New York.
The state’s accompanying court records put the potential total above $36 billion. The verified petition does not demand one fixed $36 billion judgment, and the eventual exposure would depend on the accounting, the conduct covered by the case and which remedies the court accepts.
The language concerning operations “within or from” New York creates the largest business risk. Kalshi’s principal place of business is in New York City, meaning the state is pursuing relief that could interfere with activity conducted from the company’s headquarters even when customers are located elsewhere.
Kalshi’s Earlier Federal Challenge Failed to Stop Enforcement
The lawsuit followed a series of unsuccessful attempts by Kalshi to prevent New York from enforcing its gambling laws.
The New York State Gaming Commission issued a cease-and-desist demand in October 2025. Kalshi responded by suing state officials in the Southern District of New York and seeking a preliminary injunction based on federal preemption.
A federal judge denied that request on July 7, 2026. The court then denied Kalshi’s request for an injunction pending appeal on July 27, leaving the state free to proceed while Kalshi appeals to the Second Circuit.
“It’s sad to see this type of political theater from the leadership in our own state,” Kalshi Head of Communications Elisabeth Diana said in a statement reported by the Associated Press. “States can’t just shut down a federally licensed exchange.”
Kalshi removed New York’s new lawsuit from state court to the Southern District of New York on the day it was filed, according to the federal docket. The company identified the case as related to its existing federal litigation with New York officials.
Why This Matters
For bettors in New York, the immediate risk is losing access to Kalshi markets if the state secures an injunction. Because the requested relief covers sports, elections, culture and other events, geofencing sports contracts alone may not satisfy the state.
Users could also become part of the accounting and restitution process. New York wants Kalshi to disclose customer identities, positions, losses and other transaction information so the court can determine what money should be returned. How that process would treat winning customers, open positions or fees paid to the exchange remains unresolved.
The broader threat comes from the attempt to regulate activity conducted from Kalshi’s New York headquarters. A ruling that prevents the company from operating an alleged gambling business “from” the state could force an operational relocation, disrupt product availability or create a wider shutdown risk while the dispute is litigated. Those outcomes would affect liquidity and market continuity well beyond New York bettors.
The case also sharpens the competitive imbalance between prediction exchanges and licensed sportsbooks. New York’s sportsbook operators pay a 51% tax on gross gaming revenue and must comply with state rules covering age verification, approved events, advertising and responsible-gambling controls. Kalshi operates under a federal derivatives framework and offers sports contracts without entering that licensing system.
New York is asking a court to decide whether federal exchange status allows Kalshi to bypass those state requirements. If the state prevails, other attorneys general could pursue similarly broad remedies rather than settling for sports-market geofencing. If Kalshi prevails on appeal, state regulators could lose one of their strongest routes for controlling federally listed event contracts.
The $36 billion estimate will attract attention, but the injunction is the more consequential demand. Financial penalties can be challenged, reduced or calculated after years of litigation. An order restricting Kalshi’s ability to operate from its headquarters could alter the company’s business much sooner.
What Happens Next
The federal court must first address where the lawsuit belongs. Kalshi has removed the case from New York Supreme Court to federal court, while the state may seek to return it to the state-court system.
Separate proceedings will continue over Kalshi’s appeal from the denial of its preliminary injunction. A favorable Second Circuit ruling could restore protection against state enforcement, while another loss would strengthen New York’s position as it seeks immediate restrictions in the new case.
The court will also have to define the geographical and product scope of any injunction. The state’s language encompasses operations within New York, contracts offered to New Yorkers and business conducted from New York. Whether a court accepts all three theories will determine whether this becomes a state access dispute or a direct threat to Kalshi’s national operations.
Until an injunction is entered, bettors should expect the platform to continue defending access under federal commodities law. The legal risk surrounding market availability, customer records and unsettled contracts will rise if New York obtains emergency relief.
Marcus has spent over 20 years navigating the legal side of online betting - from his early days consulting for offshore operators to helping licensed U.S. sportsbooks launch in regulated markets. He’s worked with compliance teams, reviewed licensing frameworks in 15+ states, and advised on some of the biggest regulatory shifts since PASPA was repealed.
At BettingScanner, Marcus serves as the voice of reason - translating legalese into plain English and helping bettors understand what’s legal, what’s risky, and where the gray areas live. If you’re ever unsure about the rules, Marcus is your man - as he probably helped write them.
