The U.S. Treasury Department has frozen more than $130 million in crypto held in digital wallets allegedly linked to Iran’s central bank, marking one of Washington’s most significant actions targeting the use of digital assets to evade economic sanctions.

Treasury Secretary Scott Bessent announced the move, saying the United States would continue pursuing financial networks that help Tehran access revenue through cryptocurrencies and other illicit channels. The action comes as the Trump administration expands its economic pressure campaign against Iran alongside military and diplomatic measures.

Why did the US freeze Iran-linked crypto wallets?

According to the U.S. Treasury, the crypto wallets were tied to Iran’s Central Bank and were allegedly used as part of financial networks designed to bypass international sanctions.

The sanctions were imposed by the Treasury Department’s Office of Foreign Assets Control (OFAC), the agency responsible for administering and enforcing U.S. economic sanctions.

Announcing the action, Treasury Secretary Scott Bessent said the department remains committed to disrupting Iran’s use of digital assets for illicit financial activities.

He added that the administration would continue targeting financial channels that generate revenue for the Iranian government.

What is OFAC?

The Office of Foreign Assets Control (OFAC) is a division of the U.S. Treasury Department that administers sanctions against countries, organizations, and individuals accused of threatening U.S. national security or violating international laws.

Its powers include:

• Freezing assets under U.S. jurisdiction.
• Sanctioning individuals and organizations.
• Restricting access to the U.S. financial system.
• Blacklisting cryptocurrency wallets associated with sanctioned entities.

In recent years, OFAC has increasingly expanded sanctions enforcement into the cryptocurrency sector as digital assets have become a larger part of global finance.

Why is crypto becoming a sanctions target?

Cryptocurrencies allow value to move across borders without relying entirely on traditional banking systems.

Although blockchain transactions are publicly recorded, governments have grown increasingly concerned that sanctioned entities may use digital assets to:

• Move money internationally.
• Circumvent banking restrictions.
• Receive payments through decentralized platforms.
• Transfer funds without using conventional financial institutions.

The United States has responded by sanctioning blockchain addresses, cryptocurrency exchanges, mixers, and digital wallets linked to criminal organizations, ransomware groups, and sanctioned governments.

How does freezing a crypto wallet work?

Contrary to popular belief, governments generally cannot simply “seize” cryptocurrency stored on a decentralized blockchain.

Instead, sanctions typically work by:

• Identifying wallet addresses connected to sanctioned entities.
• Prohibiting U.S. persons and businesses from transacting with those wallets.
• Freezing assets held by U.S.-regulated custodians or exchanges.
• Restricting the movement of funds through compliant cryptocurrency platforms.

If sanctioned funds remain in self-custodied wallets beyond the reach of regulated financial institutions, enforcement may depend on whether those assets eventually pass through exchanges or service providers that comply with U.S. sanctions.

How does this fit into the broader US strategy?

The latest sanctions are part of a wider campaign to increase economic pressure on Iran.

In recent months, Washington has announced additional sanctions targeting:

• Iranian individuals.
• Shipping companies.
• Financial networks.
• Energy exports.
• Businesses accused of facilitating sanctions evasion.

Digital assets have become another focus as regulators seek to close alternative funding channels.

What impact could the sanctions have?

The immediate financial impact depends on where the cryptocurrency is held and how accessible those assets are to sanctioned entities.

More broadly, the action signals that U.S. regulators are increasing scrutiny of cryptocurrency transactions involving sanctioned governments.

It may also encourage cryptocurrency exchanges and blockchain analytics firms to strengthen compliance measures and monitor transactions linked to sanctioned wallet addresses.

Key takeaways

• The U.S. Treasury says it has frozen more than $130 million in cryptocurrency linked to Iran’s Central Bank.
• The action was carried out by the Office of Foreign Assets Control (OFAC).
• Officials say the sanctions are intended to disrupt Iran’s alleged use of digital assets to generate illicit revenue.
• The move forms part of a broader U.S. sanctions campaign targeting Tehran’s financial networks.
• Cryptocurrency is becoming an increasingly important area of sanctions enforcement as governments seek to limit sanctions evasion.