Kalshi, a platform offering event contracts, is navigating a complex legal landscape as various states, tribal nations, and consumers challenge the classification of its offerings. Conflicting rulings from federal circuit courts have created significant uncertainty regarding the platform’s operational future and the regulatory framework governing its contracts.
At the heart of the dispute is Kalshi’s assertion that its event contracts are financial swaps, subject to regulation by the Commodity Futures Trading Commission (CFTC). However, states and other entities contend that these contracts function as sports wagers, falling under state gambling laws. This fundamental disagreement has coincided with a series of legal battles, with federal circuit courts issuing divergent opinions on whether federal commodities law preempts state gambling regulations.
Recent court decisions have highlighted this division. On August 28, 2026, the Ninth Circuit ruled against Kalshi in a case involving Nevada. This was followed by the Sixth Circuit’s rejection of Kalshi’s appeal on September 28, 2026, which cleared the path for Ohio and Tennessee to pursue enforcement actions against the platform. In contrast, the Third Circuit had previously sided with Kalshi on the issue of preemption in a dispute concerning New Jersey. Separately, Montana and Kalshi mutually dismissed their lawsuits on September 17, 2026, temporarily pausing enforcement in that jurisdiction.
The legal uncertainty extends beyond state enforcement. Kalshi is also facing claims from tribal gaming entities and consumer class actions, further complicating its operational environment. The differing outcomes across federal circuits mean that Kalshi’s ability to operate may vary depending on the geographic location of its users, a situation that could persist until the conflict is resolved, potentially by the Supreme Court.
This regulatory ambiguity occurs against a backdrop of significant growth in the sports wagering market. In 2025, Americans wagered approximately $166 billion on sports bets, with legal sportsbooks handling $166.94 billion, generating $16.96 billion in revenue and $3.71 billion in state taxes. A notable trend reported by Fortune indicates that 35% of bettors are using traditional sportsbooks less, with many shifting their wagers to prediction markets like Kalshi. This migration of funds to platforms not classified as traditional gambling presents a competitive challenge to established sportsbooks and reduces potential tax revenue for state governments.
The core legal question revolves around preemption: whether federal commodities law supersedes state gambling laws when applied to Kalshi’s event contracts. The current circuit split underscores the complexity of this issue, creating a fragmented regulatory landscape. Until a definitive resolution is reached, the classification of Kalshi’s contracts and its operational scope remain uncertain, with potential implications for both the platform and the broader market for event-based contracts.
Why This Matters
The core legal question is whether federal commodities law preempts state gambling laws when applied to Kalshi’s event contracts. The conflicting circuit court rulings create a fragmented regulatory landscape for Kalshi’s operations across different states, with the ultimate classification of Kalshi’s event contracts (swaps vs. gambling) remaining uncertain until a definitive resolution is reached, potentially by the Supreme Court.
Broader Context
Americans spent more on sports bets in 2025 than on movies, music, and museums combined, with a growing share of that action flowing to platforms that do not classify themselves as traditional sportsbooks.
