Reports highlights how illegal gambling thriving in Czech Republic
The Czech Republic is losing more than CZK330 million (€13m) in tax revenue each month as players continue to gamble with unlicensed operators, according to new research.
Data published in the 2026 Black Book of Illegal Gambling by Robert Klobuck of the Sociological Institute at the Slovak Academy of Sciences estimates that around 400,000 Czech residents use illegal gambling websites. The report incorporates economic modelling from the Centre for Economic and Market Analysis, led by executive director Aleš Rod.
The analysis suggests Czech players lose approximately CZK14.5 billion annually on unlicensed online casinos and betting sites. This is linked to between CZK2.9 billion and CZK3.6 billion in foregone tax revenue each year, alongside municipal losses of up to CZK500 million.
The study warns that the overall impact on public finances may be higher, citing additional losses tied to income tax and employment contributions. Rod said illegal gambling represents a growing economic risk as online play expands.
The report also highlights the new challenges authorities face in tackling illegal gambling, with these including cryptocurrencies, which are often a payment option at offshore gambling sites, mobile applications from outside traditional App Stores, social media influencers, Lootboxes in esports betting and the misuses of legitimate domains to host or advertise gambling.
The report highlights a specific case in April 2025, when the official website of the Ministry of Transport of the Slovak Republic was hacked, with advertisements for Thai online casinos on some of its subpages.
