Polymarket Ban Argentina: Court Orders Full Platform Block

Robert Harris
March 18, 2026
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Quick Answer: Argentina has become the first Latin American country to impose a nationwide ban on Polymarket, the U.S.-based prediction market platform. A Buenos Aires court ordered internet providers to block site access and directed tech companies to remove the app for local users, citing unlicensed gambling activity, crypto deposits, and weak identity verification.

A Buenos Aires court has ordered Argentine internet service providers to block Polymarket and instructed tech platforms to restrict app access for local users, making Argentina the first Latin American nation to impose a full ban on the prediction market. The case was brought by the Buenos Aires City Lottery alongside casino industry representatives who argued Polymarket operated outside national gambling law. Regulators also flagged suspicious market activity tied to Argentina’s February 2025 inflation data release as a key trigger for the crackdown.

Buenos Aires Court Issues Full Nationwide Block on Polymarket

How the Legal Case Was Built Against Polymarket

The Buenos Aires City Lottery, the official body overseeing licensed gambling in the Argentine capital, filed the complaint alongside representatives from the country’s regulated casino sector. Their core argument: Polymarket accepted wagers from Argentine users without holding any local gambling license, bypassing the legal framework that every licensed operator in the country must follow. The court agreed, issuing an order that covers both web access and mobile app distribution.

Regulators pointed to two structural problems with Polymarket’s operation in Argentina. First, the platform accepts cryptocurrency deposits, which regulators said made it significantly harder to trace funds and enforce financial controls. Second, identity verification on the platform was deemed unreliable, meaning Argentine authorities had no practical way to confirm who was placing bets or whether those users met legal age requirements.

The combination of crypto payments and weak KYC controls is exactly what regulators across multiple jurisdictions have flagged as the defining risk of decentralized prediction markets. Argentina’s court treated these not as technical oversights but as deliberate structural features that enabled unlicensed gambling at scale. Internet service providers received direct instructions to restrict access, and tech companies were told to limit Polymarket’s availability in local app stores.

The Inflation Data Incident That Accelerated the Ban

Beyond the licensing argument, Argentine authorities raised a more pointed concern: they suspected improper market activity on Polymarket in the period immediately before Argentina’s February 2025 inflation data was made public. Prediction markets allow users to bet on real-world outcomes, including economic indicators, and regulators believed trading patterns suggested some participants may have had advance knowledge of the figures. Argentina’s inflation rate has been one of the most closely watched economic data points in the world, reaching 211.4% annually in 2023 before beginning a sharp decline under President Javier Milei’s administration [1].

The inflation data allegation elevated the case from a routine licensing dispute to something closer to a market integrity investigation. If proven, it would mean Polymarket’s infrastructure was used to profit from non-public government information, a concern that goes well beyond gambling regulation into financial crime territory. Authorities have not yet named specific individuals in connection with that allegation.

Argentina’s Ban Hits Polymarket Users, Operators, and the Broader Crypto Betting Sector

Direct Impact on Argentine Users and the Platform

For the estimated millions of Argentine internet users, the practical effect is a DNS-level block enforced by local ISPs, the same mechanism used in other jurisdictions to restrict unlicensed gambling sites. Users with technical knowledge can route around such blocks using VPNs, but the court order creates clear legal risk for anyone who does. Polymarket, which is incorporated in the United States and operates on the Polygon blockchain, has not issued a public statement responding to the Argentine ruling as of the time of writing.

The app store restriction adds a second layer of enforcement. Even if a user bypasses the ISP block via VPN, they cannot easily download or update the Polymarket app through official channels while located in Argentina. This dual-layer approach, combining ISP blocks with app store restrictions, mirrors the enforcement model used by the United Kingdom Gambling Commission and the Australian Communications and Media Authority against unlicensed offshore operators [2].

Knock-On Effects for the Prediction Market Industry

Argentina’s move sends a direct signal to other Latin American regulators who have been watching Polymarket’s rapid growth. The platform processed over $8 billion in trading volume during the 2024 U.S. presidential election cycle alone, according to data cited by multiple financial publications, making it impossible for regulators worldwide to ignore [1]. Brazil, Mexico, and Colombia all have active gambling reform discussions underway, and a successful enforcement action in Buenos Aires gives those jurisdictions a legal template to follow.

The casino industry’s role in bringing this case is also significant. Licensed operators in Argentina pay taxes, comply with responsible gambling rules, and submit to regular audits. Their participation in the complaint reflects a broader industry frustration: regulated businesses compete against platforms that carry none of those costs. That dynamic is not unique to Argentina and will likely fuel similar complaints in other markets where prediction platforms have gained traction.

Prediction Market Regulation: Where Countries Stand in 2025

Country Polymarket Status Regulatory Basis
United States Blocked for U.S. users (CFTC) Unregistered derivatives trading; $1.4M CFTC fine in 2022
Argentina Fully banned (2025) Unlicensed gambling, crypto deposits, KYC failures
European Union Accessible, unregulated No unified prediction market framework; MiCA covers crypto assets
United Kingdom Accessible, grey area UKGC has not issued specific guidance on prediction markets
Australia Restricted under IGA Interactive Gambling Act prohibits unlicensed online wagering services

Polymarket’s regulatory history is longer than many observers realize. The U.S. Commodity Futures Trading Commission fined the platform $1.4 million in January 2022 for operating unregistered binary options markets and failing to comply with CFTC rules, after which Polymarket blocked U.S.-based IP addresses [3]. That enforcement action did not slow the platform’s global growth, but it established a precedent that other regulators have since referenced when building their own cases.

The core legal tension is definitional. Prediction markets occupy a grey zone between financial derivatives, information markets, and gambling, and different jurisdictions classify them differently. The CFTC treated Polymarket as an unregistered derivatives exchange. Argentina’s court treated it as an unlicensed gambling operator. That classification difference matters enormously because it determines which regulatory body has jurisdiction and what penalties apply.

The 2024 U.S. election brought prediction markets into mainstream financial media, with outlets including the Financial Times and Bloomberg covering Polymarket’s odds as legitimate forecasting data. That visibility accelerated regulatory scrutiny globally. Regulators who had previously ignored prediction platforms as niche products suddenly faced political pressure to act after seeing billions of dollars flow through unregulated infrastructure during a major democratic election.

What Argentina’s Polymarket Ban Means for Crypto Casino Players

For players who use crypto-based gambling platforms, Argentina’s ruling is a direct warning about the regulatory direction of travel. The two specific concerns cited by Buenos Aires authorities, cryptocurrency deposits and inadequate identity verification, are standard features of many offshore crypto casinos operating in Latin America today. Any platform that accepts USDT, ETH, or BTC without robust KYC processes now has a clear legal precedent working against it in at least one major South American jurisdiction.

The enforcement mechanism matters too. ISP-level blocks combined with app store restrictions represent a more aggressive approach than simple cease-and-desist letters. Crypto casino operators watching this case should note that Argentine authorities did not wait for Polymarket to voluntarily comply. They went directly to infrastructure providers, a model that is increasingly common and increasingly effective at restricting access even for platforms with no local physical presence.

Players in Argentina who use licensed, regulated platforms are unaffected by this ruling. The case reinforces why licensing matters: regulated operators carry legal certainty that unlicensed platforms simply cannot offer their users, regardless of how sophisticated the technology behind those platforms may be.

Key Takeaways

  • Argentina is the first Latin American country to impose a full nationwide ban on Polymarket, ordered by a Buenos Aires court in 2025.
  • The Buenos Aires City Lottery and licensed casino industry representatives filed the original complaint, citing unlicensed gambling operations.
  • Regulators flagged suspicious trading activity on Polymarket ahead of Argentina’s February 2025 inflation data release as a key concern.
  • Two technical failures drove the ruling: cryptocurrency-only deposits and unreliable identity verification systems that prevented proper KYC compliance.
  • Argentine ISPs received direct orders to block the platform, and tech companies were instructed to restrict Polymarket’s app for local users.
  • Polymarket was previously fined $1.4 million by the U.S. CFTC in January 2022 for operating unregistered binary options markets.
  • Brazil, Mexico, and Colombia are all engaged in active gambling reform discussions that could produce similar enforcement actions in 2025 or 2026.

Frequently Asked Questions

Why did Argentina ban Polymarket?

Argentina banned Polymarket because the platform operated without a local gambling license, accepted cryptocurrency deposits that complicated financial oversight, and used identity verification systems that regulators deemed unreliable. Authorities also suspected improper trading activity on the platform ahead of Argentina’s February 2025 inflation data release, which escalated the case beyond a standard licensing dispute.

Is Polymarket legal in Latin America?

As of 2025, Polymarket is fully banned in Argentina, making it the first Latin American country to impose such a restriction. Other major Latin American markets including Brazil, Mexico, and Colombia have not yet issued specific rulings on the platform, but all three countries are actively reforming their gambling regulations, which could lead to further restrictions [1].

Can Argentine users still access Polymarket with a VPN?

Technically, a VPN can route around ISP-level DNS blocks. However, the Buenos Aires court order creates legal risk for users who bypass the restriction, and the app store restriction means the Polymarket app cannot be easily downloaded or updated through official channels in Argentina. Using a VPN to access a court-banned platform may expose users to legal liability under Argentine law.

What is the CFTC’s history with Polymarket?

The U.S. Commodity Futures Trading Commission fined Polymarket $1.4 million in January 2022 for operating unregistered binary options markets and failing to comply with CFTC regulations [3]. Following that action, Polymarket blocked access for U.S.-based IP addresses. The CFTC case is frequently cited by other regulators, including Argentine authorities, as evidence of the platform’s pattern of operating outside established financial and gambling law.

The Bottom Line

Argentina’s Polymarket ban is not an isolated regulatory event. It is the clearest signal yet that prediction markets, which spent years operating in a definitional grey zone between finance and gambling, are now firmly in regulators’ crosshairs across multiple continents. The Buenos Aires ruling gives other Latin American authorities a tested legal framework, a working enforcement model, and political cover to act. Platforms that assumed geographic distance from regulators provided permanent protection are learning that ISP orders and app store restrictions close that gap faster than any legal team can respond.

For the broader crypto gambling sector, the two specific failure points Argentina cited, crypto-only deposits and weak KYC, read like a checklist of what not to do in 2025. Regulators are no longer debating whether to act on these issues. They are acting, and they are winning in court. The platforms that survive the next wave of enforcement will be the ones that treated compliance as a foundation rather than an afterthought.

Argentina drew the first line in Latin America. It will not be the last.

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Sources

  1. GamblingNews.com – Primary reporting on Argentina’s Polymarket ban, regulatory complaints, and enforcement details including ISP block orders and app store restrictions.
  2. GamblingNews.com – Analysis of dual-layer enforcement mechanisms used by regulators against unlicensed offshore gambling platforms.
  3. GamblingNews.com – Background on Polymarket’s 2022 CFTC fine of $1.4 million for operating unregistered binary options markets.
Author Robert Harris