US Raises Alarm Over Iran’s Sanctions-Evasion Network

The United States has raised fresh concerns over financial networks allegedly being used by Iran’s Islamic Revolutionary Guard Corps (IRGC) to evade sanctions, move illicit funds and gain access to the international financial system.

 The Financial Crimes Enforcement Network (FinCEN), an agency of the US Treasury Department, issued an alert warning banks and other financial institutions to strengthen monitoring of transactions linked to Iran and its financial facilitators.

 According to FinCEN, Iranian actors rely on front companies, complex ownership structures, shipping networks and digital assets to disguise the origin and destination of funds.

 The agency said its analysis showed that oil companies potentially linked to Iran carried out about $4 billion in transactions in 202, while shipping companies potentially involved in transporting sanctioned Iranian oil and petrochemicals conducted about $707 million in transactions through US correspondent accounts during the same period.

 FinCEN said Iranian oil-smuggling networks frequently use ageing vessels and other “shadow fleet” tactics to conceal shipments. These include changing vessel names, flags and ownership details, as well as manipulating or disabling shipping-tracking information.

 The US agency also identified a network of suspected shell companies operating through jurisdictions including the United Arab Emirates, Hong Kong and China.

 Its analysis indicated that such companies moved about $5 billion in 2024, with transactions involving non-resident accounts at Chinese banks and transfers connected to the UAE.

 Digital currencies are another area of concern. FinCEN said Iranian networks increasingly use cryptocurrencies and stablecoins to transfer value internationally while reducing reliance on traditional financial institutions.

 The agency urged banks, money-service businesses and digital-asset firms to pay attention to unusual transactions, opaque ownership structures, unexplained cryptocurrency activity and other indicators that could point to sanctions evasion.

 FinCEN stressed that individual warning signs should not automatically be treated as evidence of criminal activity, but said institutions should consider multiple indicators alongside a customer’s normal business activities.

 The alert is expected to increase compliance pressure on financial institutions as US authorities intensify efforts to disrupt Iran-linked illicit finance.

 FinCEN directed institutions reporting potentially suspicious transactions associated with the alert to reference “FIN-2026-Alert002” in their filings.

 The latest warning underscores the growing challenge facing regulators as sanctions-evasion networks increasingly combine conventional banking, international trade, shipping and digital assets.