Stablecoins
Senate Report Links Tether's USDT to Iran's Sanctions-Evasion Network
A report from the Senate Permanent Subcommittee on Investigations (PSI) has uncovered that Tether's USDT stablecoin plays a crucial role in Iran's sanctions-evasion strategies. Released on September 28, 2026, the report titled “Tethered to Terrorism: Crypto and Iran’s Shadow Banking Network” details that 84% of 846 assessed crypto wallets linked to Iran primarily used USDT. This figure rises to 87% for wallets associated with terrorism financing.
The investigation highlights that Iran's Central Bank has amassed over $507 million in USDT, granting the nation access to dollar-denominated liquidity outside traditional banking systems. Additionally, sanctioned oil smugglers reportedly transferred over $603 million in USDT from 2021 to 2025, contributing to Iran's estimated $2 billion in cryptocurrency transactions in 2025, predominantly in USDT.
Connections to Hezbollah, the US-designated terrorist organization, were also identified in the report. The findings have been referred to the Treasury and Justice Departments for further investigation.
Tether has responded by stating its collaboration with US authorities, having frozen nearly $550 million in USDT linked to Iran in 2026. However, the Senate report criticizes Tether for its slow response in freezing certain wallets and its failure to proactively block others, suggesting that delays allowed illicit funds to move freely.
The report underscores USDT's dominance over alternatives like Bitcoin in Iranian networks, attributing this to its stability, liquidity, and acceptance, which may outweigh the risks associated with potential freezing by regulators.
As regulatory scrutiny intensifies, competing stablecoins like USDC, which emphasizes compliance, may gain an advantage over Tether.
FAQ
What does the Senate report say about Tether's USDT?
The Senate report reveals that Tether's USDT stablecoin is significantly involved in Iran's sanctions-evasion strategies, with 84% of crypto wallets linked to Iran primarily using USDT.
How much USDT has Iran's Central Bank accumulated?
Iran's Central Bank has amassed over $507 million in USDT, enabling access to dollar-denominated liquidity outside traditional banking systems.
What role does USDT play in terrorism financing according to the report?
The report indicates that 87% of wallets associated with terrorism financing used USDT, highlighting its critical role in facilitating such activities.
How has Tether responded to the findings of the report?
Tether has stated that it is cooperating with US authorities and has frozen nearly $550 million in USDT linked to Iran, although the report criticizes its slow response in some cases.
What implications does the report have for the future of stablecoins?
As regulatory scrutiny increases, the report suggests that competing stablecoins like USDC, which focus on compliance, may gain an advantage over Tether due to its associations with illicit activities.