Ohio proposes licensing rules for prediction market operators

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2026/04/16: Ohio bill proposes fees on sports bets to fund stadiums and schools 2025/10/08: Kalshi sues Ohio in a bid to prevent being blocked from operating 2026/04/16: Ohio fines Kalshi US$5 million for unlicensed sports betting 2026/03/11: Ohio Judge rules state can enforce gambling laws against Kalshi

The Backstory

Mounting pressure sets the stage

Ohio’s latest move to license prediction market operators follows a year of heightened scrutiny that pulled event-contract platforms into the state’s sports betting framework. The Ohio Casino Control Commission asserted jurisdiction over sports-related “event contracts,” culminating in a US$5 million penalty against Kalshi for allegedly running an unlicensed sportsbook aimed at Ohio customers. Regulators said Kalshi kept offering sports-linked products despite prior warnings, framing the action as necessary to preserve the integrity of Ohio’s sports gaming regime. The commission’s stance and the fine are detailed in Ohio fines Kalshi US$5 million for unlicensed sports betting.

The enforcement track has been reinforced by statewide political messaging. Ohio Attorney General Dave Yost publicly argued that Kalshi’s event contracts amounted to unlawful gaming under Ohio law and pointed to a federal court’s agreement with the state’s view. His position surfaced alongside another policy push at the Statehouse in Ohio bill proposes fees on sports bets to fund stadiums and schools, where lawmakers debated a separate 2% levy on sports wagers to support stadium projects and K-12 funding. Together, the enforcement actions and fiscal proposals underscored that Ohio intends to regulate and tax activity it views as sports gaming, whether offered by a traditional sportsbook or an event-contract marketplace.

From cease-and-desist to the courthouse

Kalshi’s response has been to challenge Ohio in federal court, arguing state regulators are overreaching and that its products, described as “event contracts,” are legal under federal oversight. In its complaint, the company said state threats chilled partnerships and damaged operations, and it sought an injunction to keep Ohio from blocking business. The timeline, including a cease-and-desist and warnings to licensed books against teaming up with Kalshi, is laid out in Kalshi sues Ohio in a bid to prevent being blocked from operating.

Kalshi’s core argument is jurisdictional: as a federally regulated marketplace supervised by the Commodity Futures Trading Commission, it says states cannot reclassify its contracts as sports betting. Ohio’s regulators counter that state law governs gambling within its borders and that sports outcomes are squarely within the definition of sports gaming when offered to residents. The clash left counterparties wary. According to the lawsuit, sportsbooks and vendors were warned their own licenses could be at risk if they partnered with Kalshi, even for activities outside Ohio. That posture raised the stakes beyond Kalshi, signaling how state policing of gray areas could ripple through the broader betting and financial trading ecosystem.

Court rulings narrow the lane

The legal fight took an early turn against Kalshi. On March 9, Chief U.S. District Judge Sarah D. Morrison denied the company’s bid for a preliminary injunction, allowing Ohio to continue enforcing its gambling laws against providers of sports event contracts. The decision, which questioned whether the contracts qualify as legitimate swaps under federal commodities law, is summarized in Ohio Judge rules state can enforce gambling laws against Kalshi.

The ruling mattered for two reasons. First, it preserved Ohio’s leverage to pressure unlicensed platforms while lawmakers considered how to codify oversight. Second, it aligned with a line of federal decisions in other states upholding state regulators’ authority over similar products, even as at least one state court granted temporary relief to a prediction market platform. The result is a patchwork where operators face differing risk profiles depending on the state, strengthening the case for Ohio to clarify in statute when an event contract becomes sports betting and how it should be licensed and taxed.

Policy ambitions converge with revenue goals

Parallel to the enforcement track, Ohio lawmakers have tested broader funding models for the sector. A proposal to add a 2% fee on sports wagers, on top of the existing 20% tax on sports gaming receipts, projected roughly US$200 million a year for stadiums and K-12 funding, according to its sponsor. Skeptics questioned those numbers and the fairness of singling out gamblers for additional charges. The debate, captured in Ohio bill proposes fees on sports bets to fund stadiums and schools, echoed an earlier idea from Gov. Mike DeWine and highlighted how fiscal aims and regulatory boundaries are increasingly intertwined in the state’s gambling policy.

That political backdrop informs the drive to fold sports-linked prediction markets into the established sportsbook apparatus. By requiring prediction market operators to secure licenses and pay the same taxes and fees as sportsbooks, lawmakers signal that the mechanics of the wager, not the branding of the platform, will determine regulatory treatment. It also creates a clearer path for consumer protections, compliance audits and partnerships with licensed books that have been hesitant to engage given the threat of regulatory blowback.

National currents shape local decisions

Ohio’s moves are unfolding as other states revisit the legality of event-contract trading. In Minnesota, a bill to ban prediction markets advanced out of a Senate committee, with backers arguing the platforms are not covered by current law and raise risks related to insider information and market integrity. The hearing, and the concerns it surfaced, are detailed in Minnesota Senate advances prediction market ban. At the same time, attorneys general in multiple states have backed efforts to keep sports-linked contracts under state gambling laws rather than federal commodities rules.

The crosscurrents complicate national operators’ compliance strategies. A model that treats non-sports events as federally regulated derivatives and sports outcomes as state-regulated bets may satisfy some jurisdictions but not others. For Ohio, codifying the line for sports-related contracts aims to minimize ambiguity and strengthen enforcement where event trading looks, feels and functions like betting.

Why the stakes are high for operators and bettors

The proposed licensing track would reshape market access, economics and partnerships. Operators offering sports event contracts to Ohio residents would face the same licensing, fees and 20% tax as sportsbooks, shrinking any cost advantage from operating in a gray zone. For licensed books, statutory clarity could reduce counterparty risk and open doors to structured collaborations on compliant products. For consumers, it could bring stronger safeguards around identity checks, responsible gaming tools and dispute resolution.

Kalshi’s legal challenges, the commission’s enforcement actions and the court’s early rulings set the foundation for the current legislative push. If enacted, Ohio’s licensing regime would convert what has been a regulatory tug-of-war into a defined on-ramp for prediction markets that touch sports. The broader message to market participants is plain: in Ohio, contracts tied to games, players and scores will be treated as sports betting, and companies that want to offer them must play by sportsbook rules.