Czech Ministry of Finance Adds Decentralized Prediction Market Polymarket to Blacklist... Regulatory Pressure in Europe Intensifies

On July 15, 2026, the Czech Ministry of Finance officially added Polymarket, a decentralized prediction platform, to the blacklist of unauthorized online gambling websites. As a result of this measure, internet service providers (ISPs) in the Czech Republic are now obligated to block access to the Polymarket domain within the next 15 days.

The Czech Ministry of Finance increased regulatory pressure by listing Polymarket on the 'List of Unauthorized Internet Games' as of July 15, 2026. This decision was based on the determination that Polymarket was providing services to local users without obtaining the appropriate license under the Czech Gambling Act, and it was finalized through official administrative procedures.

Internet connection providers in the Czech Republic are obliged to prevent access to all web pages included in the blacklist determined by the Ministry of Finance.

According to the Czech Gambling Act, the Ministry of Finance has the authority to blacklist and manage websites that provide unauthorized online games. In 2026, Czech authorities have significantly intensified their crackdown on illegal gambling sites, with more than 1,000 domains added to the blacklist since the beginning of the year, bringing the total number of managed prohibited domains to over 3,300.

Regulatory Domino Effect Spreading Across Europe

This move by the Czech Republic comes amid intensifying regulatory pressure on Polymarket within Europe. Similar measures, such as blacklisting or blocking access to Polymarket, have already been taken in neighboring countries like Poland and Romania, signaling the emergence of a so-called 'European regulatory domino' effect.

• Poland: The Ministry of Finance added Polymarket to its blacklist and blocked access.
• Romania: The National Gambling Office (ONJN) blacklisted the platform for failing to obtain a license.
• France: The National Gaming Authority (ANJ) is investigating compliance with gambling laws and considering a service ban.

Polymarket has attracted user interest by operating prediction markets related to local Czech issues. In particular, prediction markets for political events such as the 'Next Prime Minister of the Czech Republic' have been actively traded, which is analyzed as one of the primary reasons regulatory authorities have come to view Polymarket as a de facto gambling service rather than a mere information platform.

Despite these regional regulations, Polymarket is recording explosive growth in the global market in 2026. On February 28, 2026, daily trading volume surpassed $425 million due to issues related to Iran, breaking an all-time record. However, as the regulatory net of major European countries tightens, securing legal licenses has emerged as an urgent task for the platform's sustainable growth.

Czech users are now expected to face difficulties accessing Polymarket normally unless they use circumvention methods such as a VPN. The official government blacklisting will result in a significant decrease in accessibility for general users, which is expected to deal a substantial blow to the platform's local user base.

Whether Polymarket will apply for a formal license in accordance with the Czech authorities' requirements or choose legal action or service withdrawal, as seen in other European countries, is a major point of interest in the industry. Given the precedents in Romania and Poland, Polymarket will likely have to undergo rigorous procedures under local gambling laws to obtain legal status in the Czech market.

In conclusion, the blacklisting of Polymarket by the Czech Republic is expected to be a significant watershed moment for prediction market regulation in Europe. As regulatory authorities in various countries begin to strictly apply existing gambling laws to decentralized financial services, attention is focused on how platforms like Polymarket will seek new survival strategies within the institutional framework.