Kalshi Faces $500,000 Daily Fine Under Michigan Court Injunction

Michigan has escalated its enforcement action against prediction market platform Kalshi, with a state court now imposing a staggering $500,000 per-day fine for any violation of a new preliminary injunction that bans sports event contracts in the state. Ingham County Circuit Court Judge Rosemarie E. Aquilina signed the order on Sept. 1, extending restrictions that first took effect under a temporary restraining order in late June, according to the Michigan Attorney General’s Office. The injunction will remain in force until the court issues a final order in the ongoing lawsuit brought by Michigan Attorney General Dana Nessel. Michigan Court Tightens Grip on Kalshi Sports Contracts The preliminary injunction prohibits Kalshi from offering, listing, executing, or settling sports-related contracts for individuals located within Michigan’s borders. The court’s order casts a wide net, covering products functionally similar to internet sports betting, ranging from moneyline markets and parlays to over-under contracts, in-game betting, and proposition bets. This legal action directly targets the core trading functionality of the platform within the state, representing a significant operational blow for the company in one of the Midwest’s largest markets. Under the terms of the injunction, Kalshi is mandated to employ a third-party geolocation service that is licensed by the Michigan Gaming Control Board. The chosen provider must be fully capable of satisfying the regulator’s stringent geofencing requirements, ensuring that no resident can access the forbidden contract types. The court has set a financial penalty of $500,000 for each day it determines the company has failed to comply with these geographic restrictions and product bans. Nessel’s Legal Battle: the Fight over Lawful Sports Betting The legal conflict traces back to March when Attorney General Dana Nessel filed a lawsuit against Kalshi on behalf of the state, acting in collaboration with the Michigan Gaming Control Board. The suit alleges that Kalshi violated the Michigan Lawful Sports Betting Act by offering sports event contracts without obtaining the necessary state approval. Nessel’s original complaint sought to have the operation declared a common-law nuisance and demanded permanent injunctive relief to prevent Kalshi from offering or advertising its sports products within Michigan. The case has seen significant procedural maneuvering. Kalshi initially attempted to remove the lawsuit from state court to the U.S. District Court for the Western District of Michigan. However, the federal court granted Michigan’s motion to remand the case, sending the legal proceedings back to Ingham County Circuit Court. This jurisdictional back-and-forth delayed the proceedings but ultimately solidified the state court’s authority over the matter. Escalating Penalties and Stricter Geolocation Rules The new preliminary injunction dramatically raises the stakes for Kalshi. The previous temporary restraining order, granted by Judge Aquilina in late June, imposed potential fines of $120,000 per day for noncompliance and similarly required the company to adhere to state geolocation rules. The new order more than quadruples the daily fine potential to $500,000, signaling the court’s increasing impatience with the platform’s operations and a firm stance on state regulatory supremacy. Court Order / Entity Key Enforcement Action Financial Penalty / Market Impact Temporary Restraining Order (June) Banned Kalshi sports contracts in Michigan $120,000 per day for noncompliance Preliminary Injunction (Sept. 1) Extends ban until final court order; mandates licensed geolocation provider $500,000 per day for noncompliance Michigan AG Office Lawsuit under Lawful Sports Betting Act; nuisance claim Seeks permanent ban on operations Kalshi Attempted federal court removal; now faces state injunction Must block all Michigan-based users from sports markets Inside the Injunction: a Breakdown of Forbidden Market Types The scope of activities that Kalshi must immediately cease for Michigan users is broad and precise. To ensure full compliance, the platform has to navigate a complex set of restrictions that mirror the state’s existing internet sports betting prohibitions. The injunction specifically targets contract types that the court believes circumvent the established legal framework for sports wagering in Michigan. Moneyline contracts (bets on which team or individual will win an event outright) Parlay contracts (bets that combine multiple selections into one wager) Over-under contracts (bets on the combined total points scored in a game) In-game betting contracts (wagers placed after an event has started) Proposition bets (wagers on specific occurrences within a game that do not directly relate to the final score) Why This Court Injunction Spells Trouble for Prediction Markets This injunction represents a significant legal precedent for the prediction market industry, which has often operated in a gray area between financial trading and sports gambling. By categorizing Kalshi’s sports offerings as unlicensed sports betting, the Michigan court is asserting that these financial contracts fall squarely under state gambling law. This decision provides regulators in other states with a potential blueprint for challenging platforms that operate without traditional gaming licenses, putting the entire sector on notice. The strong financial penalty attached to the injunction acts as a powerful deterrent against any attempts to flout the geolocation rules. Kalshi’s compliance team must now ensure that their primary platform executives and technology infrastructure are perfectly aligned with the court’s order, all while the underlying lawsuit continues its journey through the state court system. For the company, the immediate operational risk is not just the daily fine, but also the potential reputational damage associated with being labeled a violator of state law. What Triggered the Michigan court’s Injunction Against Kalshi? The injunction is the result of a lawsuit filed by Michigan Attorney General Dana Nessel and the Michigan Gaming Control Board. They allege that Kalshi violated the Michigan Lawful Sports Betting Act by offering sports event contracts without prior state authorization, prompting the court to escalate from a temporary restraining order to a preliminary injunction. How Much Will Kalshi Have to Pay for Violating the Michigan Order? Under the latest preliminary injunction signed by Judge Rosemarie E. Aquilina, Kalshi faces a fine of $500,000 for each day it is found to be noncompliant. This penalty applies to any day the company fails to meet the court’s product ban or geolocation requirements. What Types of Contracts Are Banned Under the Michigan Injunction Against Kalshi? The ban applies to sports-related contracts that are functionally similar to internet sports betting. This includes moneyline markets, parlays, over-under contracts, in-game betting, and proposition bets, all of which cannot be offered to or executed for people located in Michigan. Can Kalshi Appeal the Michigan court’s Preliminary Injunction? The company attempted to have the case moved to federal court, but a federal judge remanded the proceedings back to Ingham County Circuit Court. While Kalshi may continue to litigate the underlying issues in state court, the preliminary injunction remains in place until a final order is issued in the case. Why Is the $500,000 Daily Fine Considered a Major Escalation for Kalshi? The fine represents a more than fourfold increase from the $120,000 per day penalty established in the initial June temporary restraining order. This escalation signals the court’s strong stance on enforcing state gambling laws, raising significant operational risks for Kalshi’s sports market business model in Michigan.