US Sanctions Iranian Crypto Exchanges Over Sanctions Evasion and Terror Finance

The United States has intensified its crackdown on Iran’s use of digital assets, imposing sanctions on Iranian cryptocurrency exchanges accused of helping the regime move funds, evade sanctions and support activities linked to the Islamic Revolutionary Guard Corps (IRGC).

The action highlights a growing challenge for financial institutions and crypto businesses as US authorities increasingly treat digital-asset platforms as part of the sanctions-evasion and financial-crime landscape rather than as a separate technology sector.

The US Department of the Treasury’s Office of Foreign Assets Control (OFAC) has targeted several Iranian digital-asset exchanges, including Nobitex, Iran’s largest cryptocurrency exchange, as well as Wallex, Bitpin and Ramzinex. Treasury said the exchanges had facilitated transactions linked to the Iranian regime, sanctions evasion and IRGC-connected activity.

Crypto Moves Deeper Into Sanctions Enforcement

The latest measures demonstrate how sanctions enforcement is adapting to the growing use of digital currencies and blockchain-based financial infrastructure.

According to Treasury, Nobitex processed more than half of all Iranian digital-asset inflows in 2025 and enabled Iranian regime insiders to access international cryptocurrency exchanges. Treasury also alleged that the platform facilitated transactions involving wallets associated with IRGC-linked ransomware actors and helped move funds through multiple jurisdictions.

Wallex, Bitpin and Ramzinex were also designated for their roles in Iran’s financial sector. Treasury said Wallex received about 12 per cent of Iranian digital-asset inflows in 2025, while Bitpin received approximately 10 per cent. Ramzinex, which is based in Tehran, was reported to have processed more than $2.45 billion in transactions, including activity linked to the IRGC and an Iranian government-backed financial institution.

The designations demonstrate that cryptocurrency exchanges can become direct sanctions risks when their platforms are used to facilitate transactions involving sanctioned persons, entities or sectors.

A Wider Financial Crime Network

The action forms part of a broader US effort to disrupt Iranian financial networks operating through conventional and digital channels.

In January, OFAC designated Iranian businessman Babak Zanjani and two UK-registered digital-asset exchanges, Zedcex and Zedxion, alleging that they had processed funds associated with IRGC-linked counterparties. Treasury subsequently expanded its action against Zanjani’s wider network, including companies in Turkey and the United Arab Emirates that provided financial, technological and other support to the exchanges.

The pattern is significant for compliance teams because it demonstrates that sanctions exposure can extend beyond the directly sanctioned organisation. Payment providers, technology companies, intermediaries and financial institutions supporting a digital-asset platform may also face scrutiny if their services enable prohibited transactions.

The Challenge for Financial Institutions

The growing use of cryptocurrency to move value across borders creates particular challenges for banks and other regulated financial institutions.

Traditional sanctions screening generally relies on information such as names, account numbers, counterparties and jurisdictions. Digital-asset transactions can introduce additional layers of complexity because funds may move between wallets, exchanges and intermediaries across multiple jurisdictions in rapid succession.

Financial institutions therefore need to understand not only the identity of their customers but also the counterparties, wallets, exchanges and transaction patterns associated with their activity.

Blockchain transparency can provide valuable investigative information, but it does not automatically eliminate sanctions risk. Organisations still need effective screening, transaction monitoring, customer due diligence and escalation procedures.

Regulatory Expectations Are Expanding

The US enforcement approach sends a clear message that digital assets are firmly within the scope of sanctions compliance.

Treasury has repeatedly warned that it will target both traditional sanctions-evasion schemes and the exploitation of digital assets. Its broader 2026 campaign has also targeted Iranian shadow-banking networks and foreign companies supporting illicit Iranian commerce.

For cryptocurrency businesses, the development increases pressure to strengthen sanctions controls and demonstrate that they can identify and prevent prohibited activity.

For banks and other financial institutions, it creates a parallel obligation to understand their exposure to crypto-related counterparties and payment flows.

Compliance Takeaway

The sanctions against Iranian crypto exchanges demonstrate that digital assets are now firmly embedded in the sanctions-enforcement agenda.

Financial institutions, cryptocurrency businesses and payment providers should review their exposure to Iranian counterparties, digital-asset exchanges, wallet addresses and intermediaries connected to high-risk jurisdictions. Sanctions screening should be supported by transaction monitoring capable of identifying unusual routing, rapid movement of funds and attempts to obscure beneficial ownership or the ultimate destination of assets.

Compliance teams should also ensure that third-party relationships involving cryptocurrency platforms receive appropriate due diligence and ongoing monitoring.

The wider lesson is that sanctions compliance can no longer focus exclusively on traditional banking channels. As regulators follow money across blockchain networks and digital exchanges, organisations must be prepared to identify sanctions risks wherever value moves.