Washington Court Orders Kalshi to Block Prediction Markets Under Threat of Daily Fines
A King County judge ruled that the platform likely violated state gambling laws, mandating a strict geofencing system by September.
A Washington state judge has ordered prediction market platform Kalshi to cease offering a wide array of event contracts to residents of the state. The ruling marks a significant escalation in the legal battle between state gambling regulators and federally regulated trading exchanges.
On August 13, 2026, Judge John McHale of the King County Superior Court issued a final order requiring Kalshi to stop offering bets on sports, elections, politics, entertainment, culture, technology, and science within Washington. The court found that the platform likely violated the state's Gambling Act and Consumer Protection Act. To comply, Kalshi must implement an IP and residency-based geofence by August 19, followed by a comprehensive multi-source geofencing system by September 2. Failure to meet the final deadline will result in penalties of $120,000 per day.
Regulatory Friction
The court's decision follows a December 2025 notice from the Washington State Gambling Commission, which Kalshi allegedly ignored. Washington Attorney General Nick Brown criticized the platform's business model, stating that Kalshi has "gotten rich promoting wagers on sports, elections, natural disasters, events related to the Iran War, and more."
This is not an isolated incident for the company. Nevada previously forced similar restrictions on the platform, and New York's attorney general filed a lawsuit against the exchange in August 2026. In response to the Washington ruling, Kalshi spokesperson Jacki McGavick stated, "We respectfully disagree with the court's decision and are considering all legal options."
The Jurisdictional Clash
At the heart of the dispute is a conflict over legal authority. Kalshi argues that the U.S. Commodity Futures Trading Commission (CFTC) maintains exclusive jurisdiction over its exchange, which the company claims preempts individual state gambling laws. However, state regulators continue to view these prediction markets as unregulated gambling operations.
The stakes for Kalshi are high as it aggressively expands its user base. During the 2026 FIFA World Cup, the platform added 3 million new users, with tournament trading volume exceeding $12 billion. This growth has made the platform a primary target for state-level enforcement.
Industry Implications
This ruling signals a growing conflict between state gambling regulators and federally regulated prediction markets. As Kalshi increasingly relies on high-profile sports and political betting to drive growth, state-level injunctions and heavy daily fines could significantly impact its revenue and operational viability across the U.S.
Observers are now watching to see if Kalshi will successfully challenge the order in higher courts or if other states will follow Washington's lead in implementing aggressive geofencing requirements. For now, the platform faces a tight window to secure its digital borders or face mounting financial penalties.