Google Bans Prediction Market Ads in Ohio as State Regulatory Dispute Escalates

Google has blocked advertising related to prediction markets in Ohio, the company announced in June, responding to the unresolved legal conflict between state officials and prediction market platforms operating under federal CFTC licensing. The policy change means operators like Kalshi can no longer run targeted Google ads in Ohio — a significant blow to their customer acquisition efforts in a state with one of the more active sports betting markets in the country.

The restriction took effect on June 2, 2026. Google’s advertising policies for regulated financial products already require that prediction market operators obtain certification from the company and comply with applicable local laws. Given that Ohio regulators have moved against Kalshi and other platforms — and that the CFTC has countered with its own federal lawsuit — Google appears to have determined the legal landscape in Ohio does not currently meet its standards for advertising approval.

Ohio’s Dispute With Prediction Markets

Ohio has been one of the more aggressive states in pushing back against prediction market platforms. The state’s casino control commission and attorney general’s office have both challenged Kalshi’s operations, asserting that the company’s sports event contracts constitute unlicensed sports wagering under Ohio law. Kalshi has contested that characterization, arguing its products are federal derivatives contracts regulated exclusively by the CFTC.

A federal appeals court in the Sixth Circuit is now weighing the jurisdictional question in the Kalshi-Ohio case, and the CFTC has filed its own federal suit in multiple states asserting its exclusive jurisdiction. Former CFTC and SEC chair Gary Gensler filed an amicus brief on June 12 supporting Ohio’s position, arguing that Congress never intended the 2010 Dodd-Frank Act to displace state gambling authority over sports-related event contracts.

Advertising Restrictions as a Business Pressure Point

Google’s decision to restrict prediction market advertising in Ohio adds a meaningful layer of business pressure to the jurisdictional fight. Paid search and display advertising through Google represent a major customer acquisition channel for prediction market platforms — particularly for reaching casual bettors who may be unfamiliar with prediction markets and are searching for sports wagering options.

Losing access to Google advertising in Ohio would limit Kalshi and other platforms to organic search, social media, and direct marketing within the state — methods that are typically less efficient and more expensive on a cost-per-acquisition basis. The practical effect may be to significantly slow user growth in Ohio until the underlying legal questions are resolved.

Ohio is not the first state where prediction market advertising has faced restrictions. The combination of active state legal challenges and Google’s conservative approach to advertising in legally contested markets has produced a patchwork of states where prediction market operators can and cannot run paid campaigns. The sports betting landscape in Ohio has been highly competitive since the market launched in January 2023, making Google advertising access a particularly valuable resource for any operator trying to compete against established national sportsbooks.

What Happens Next

Google’s ban is expected to remain in effect until the legal status of prediction markets in Ohio is clearly resolved. That resolution could come through a Sixth Circuit ruling in the Kalshi case, through legislative action at the state level, or through an eventual Supreme Court decision if the circuit courts continue to produce conflicting rulings on federal versus state jurisdiction.

For Ohio consumers who want to trade on sports event contracts, access to prediction market platforms remains technically available — the legal dispute is between the platforms and state regulators, not a ban directed at end users. But the advertising blackout means fewer Ohio residents are likely to discover and sign up for prediction market services through online search until the regulatory situation stabilizes. The Kalshi promo code and other platform offers remain accessible for users who seek them out directly. Readers can also review our guide on whether prediction markets are legal in each state for up-to-date status information.