Argentina has blocked access to Polymarket nationwide. A Buenos Aires judge ordered the action on March 16 after the prediction market accurately forecast February inflation before official data from INDEC.
The regulator ENACOM is enforcing the ban across ISPs and app stores, cutting off Android and iOS access.
Investigators from FEJA and CIJ found Polymarket operated as an unauthorized online betting platform-accepting crypto and credit cards without age verification or gambling licenses.
LOTBA and CASCBA filed formal complaints. The court emphasized risks to minors and lack of oversight.
Colombia became the first Latin American country to ban Polymarket in September 2025 after Coljuegos ruled it illegal without a license.