Brazil has officially banned 27 prediction market platforms including major names like Kalshi and Polymarket, as part of a wider crackdown on unauthorized online betting activities.
The Brazilian government confirmed the enforcement action as part of its ongoing effort to control illegal gambling and unlicensed prediction markets operating within the country.
These platforms allow users to place bets on real-world outcomes such as elections, economic trends, and global events. According to an official statement from Brazil’s federal communications authorities, the country is stepping up actions against illegal betting services and restricting platforms that operate without proper authorization.
In total, 27 prediction market platforms have been blocked. Among the most notable are Kalshi, a U.S.-regulated exchange, and Polymarket, a blockchain-based prediction platform that gained global attention during the 2024 U.S. election cycle.
Kalshi and Polymarket under spotlight
Kalshi and Polymarket stand out among the banned platforms due to their global reach and strong user bases. Kalshi operates under regulation in the United States as a CFTC-approved exchange, while Polymarket runs on blockchain infrastructure and is widely used in crypto trading communities.
Brazil’s decision to include both regulated and crypto-native platforms highlights a strict approach where prediction markets are treated as gambling products rather than financial instruments. The enforcement does not differentiate between licensed international exchanges and decentralized platforms.
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Impact on users and market access
Users in Brazil who were using these prediction market platforms can no longer access them after the government blocked 27 services. The main goal of this action is to stop unlicensed betting activities in the country and protect users from illegal gambling platforms.
Brazil’s consumer protection agency, Senacon, is also working with other authorities to monitor and take action against companies offering unauthorized betting services. This shows that the government may continue to tighten rules in this area.
However, this ban does not affect regular cryptocurrency trading. People in Brazil can still use and trade assets like Bitcoin and Ethereum without any issue.
The restriction mainly targets prediction market platforms such as Polymarket, which use crypto-based systems like USDC for settlements, showing how closely crypto and betting-style platforms are connected.
Growing global regulatory pressure
Brazil’s decision is part of a larger global trend where governments are becoming stricter about prediction market platforms. These platforms allow people to bet or trade on real-world events like elections, economic changes, or sports outcomes, which makes their legal status unclear in many countries.
Different countries treat them differently. In the United States, platforms like Kalshi have been involved in legal discussions and were allowed by courts to offer certain election-based contracts under regulation. However, Brazil has taken a much stricter approach by classifying these platforms as gambling services and banning them completely.
This shows that regulators are still trying to decide whether prediction markets should be treated as financial tools or betting platforms. As these services grow, more countries may introduce stronger rules or restrictions, especially for platforms operating internationally or using blockchain technology.
