Senate Democrats find Iran relies heavily on Tether’s USDT
DeFi & Yields ·
An investigation by Senate Democrats concludes that USDT has become a primary means of payment for the Iranian regime, with the vast majority of sanctioned crypto wallets tied to Iran using the stablecoin.
The report examined more than 800 sanctioned crypto wallets and found that 84% of them exclusively or mostly used USDT for payments, according to WSJ. That concentration points to USDT functioning as a default settlement tool for sanctioned Iranian actors moving funds through crypto rails rather than a marginal option among several stablecoins or tokens.
The findings arrive alongside separate action by Tether itself, which froze nearly $550 million in Iran-linked USDT in 2026 as U.S. authorities widened sanctions-evasion enforcement. That freeze reportedly covered holdings tied to Iran's central bank and sanctions networks, and was carried out in coordination with U.S. law enforcement and the Office of Foreign Assets Control. Multiple accounts of the freeze put the figure at approximately $550 million, describing it as a response to the same scrutiny reflected in the Wall Street Journal report cited by Senate Democrats.
The scale of wallet usage described in the investigation, more than 800 sanctioned addresses with an 84% concentration on USDT, suggests the stablecoin's liquidity and dollar-pegged stability have made it attractive for actors seeking to move value outside traditional banking channels subject to sanctions. Tether's decision to freeze the Iran-linked balances indicates the company is acting to comply with expanding U.S. sanctions rather than contesting the findings, though the freeze and the Senate report emerged through parallel tracks rather than as a single coordinated disclosure.
Coverage of the freeze and the investigation has circulated across at least seven distinct sources, with figures consistently describing the frozen amount as nearly or approximately $550 million and the wallet analysis as spanning over 800 sanctioned addresses. The repetition of these numbers across separate accounts lends some consistency to the reported scale, even as the underlying Senate report and Tether's compliance actions are described through secondary reporting rather than a single primary document made public in the material available.
What remains unresolved is how Senate Democrats plan to act on the findings, whether through legislation, hearings, or referrals to regulators, and whether Tether's freezing of Iran-linked balances will extend to additional wallets identified in the 800-wallet sample. Also unclear is the timeframe covered by the sanctioned-wallet analysis and whether the 84% figure reflects a snapshot or a trend measured over a longer period.