US Treasury Threatens Binance Over Iran Transaction Compliance Breach: Sources

US Treasury officials have sent a private letter to Binance demanding immediate compliance with a 2023 monitoring agreement, according to sources familiar with the matter. The demand comes after reports that the crypto exchange facilitated transactions linked to Iran, potentially violating U.S. sanctions.

“This letter signals a significant escalation in enforcement activity against Binance,” said Sarah Mitchell, a former Treasury Department official now at the Center for Financial Integrity. “The agency is clearly sending a message that past settlements won’t shield companies from fresh scrutiny if new violations emerge.”

The Letter’s Demands

The letter, sent earlier this month, presses Binance to fully cooperate with the independent monitor appointed under the 2023 settlement. Sources say Treasury officials expressed alarm over lapses in monitoring systems that allowed Iran-linked transactions to pass through the exchange.

Binance has not publicly commented. However, internal communications reviewed by reporters suggest the company is scrambling to address the concerns, fearing further legal action.

Background: The 2023 Settlement

In November 2023, Binance and its CEO at the time, Changpeng Zhao, pleaded guilty to charges including violating U.S. sanctions and money laundering. The settlement required Binance to pay $4.3 billion in fines and submit to an independent compliance monitor for at least three years.

Despite the deal, the exchange has continued to face regulatory challenges globally. The monitoring arrangement was intended to ensure Binance screens all transactions and reports suspicious activity to U.S. authorities.

What This Means

If Treasury determines Binance breached the settlement terms, the company could face additional penalties, including expanded monitoring, enhanced oversight by U.S. regulators, or even revocation of its operating licenses in key jurisdictions.

“For the broader crypto industry, this is a wake-up call,” said Michael Chen, a compliance consultant who previously worked at the Financial Crimes Enforcement Network (FinCEN). “It shows that old settlements don’t provide immunity. Regulators are watching every transaction, especially those involving sanctioned nations.”

The development also raises questions about the effectiveness of Binance’s compliance program. Experts note that the company had touted its cooperation with law enforcement as a model for the industry.

What’s Next

Treasury has given Binance a short deadline to respond to the letter, sources said. Failure to satisfy the agency could trigger a formal investigation or court proceedings.

Meanwhile, Iran-related transactions remain a high priority for U.S. enforcement. The Treasury Department has repeatedly warned crypto platforms not to facilitate transactions that circumvent sanctions.

For Binance, the stakes are immense. The company is already under pressure from regulators across Europe, Asia, and the United States. This new confrontation could further destabilize its operations.