Bessent says Washington will sanction 'a large bank' on Monday over Iran

U.S. Treasury Secretary Scott Bessent said on Thursday that the Trump administration will sanction “a large bank” on Monday as part of its campaign to cut Iran out of the financial system. He gave the interview on Real America’s Voice. He did not name the institution or the country.

“We’re going to do it on Monday because we want to honor the memory of our fallen citizens on 9/11. But watch this space on Monday,” he said. The move had been lined up for Friday, 11 September, and was slipped to 14 September so it would not land on the 25th anniversary ceremonies.

Bessent framed the step as part of a sequence, not a one-off. “We are just going to continue with this process until everyone stops dealing with this regime,” he said. “We will make it so unprofitable that if you want to risk an extinction-level event for your company or for your person, your personal finances, then have at it. But we are coming for you.”

What came immediately before

The administration recently sanctioned the Dubai branches of Egypt’s second-largest bank, which U.S. officials say moved about $1.8 billion for Iranians. Bessent also said Turkey’s largest bank “that had been giving to the Iranians” will be closed. Those two remarks sit next to Monday’s unnamed target and tell markets the list is not limited to small front companies.

Last month Treasury rolled out what Bessent called Operation Economic Outcast: sanctions on nearly 60 entities, people and vessels, plus a wider use of secondary sanctions on shipping, aviation, technology, gold and digital assets tied to Iran. The United States has, since the current war with Iran began in February, also gone after oil exports and weapons-buying channels.

Secondary sanctions are the tool that reaches a bank in a third country. They tell that bank it can keep its Iran clients or its dollar access, not both. For a large lender the dollar side of the choice is existential, which is the point of Bessent’s “extinction-level” line.

Why he timed it off 11 September

Friday is the 25th anniversary of the 2001 attacks. President Trump is at the Pentagon. Four former presidents and Vice President Vance are in New York. Bessent presented the delay as respect for the dead. He also tied Monday’s action to that memory, which puts a sanctions announcement inside a terrorism anniversary rather than inside a markets calendar.

Markets will still treat Monday as a banking event. An unnamed “large bank” is a phrase that forces compliance lawyers from Istanbul to Dubai to Singapore to pull exposure lists over the weekend. Even a wrong guess moves spreads. Bessent knows that. Leaving the name blank for four days is part of the pressure.

The war this is supposed to serve

The Treasury track runs beside a shooting war that has already taken tankers off Hormuz and pushed Brent over $107. Sanctions will not refill the strait. They are meant to raise the cost of the networks that pay for missiles, oil sales and the partners who still clear those sales. Whether Monday’s bank is in Turkey, the Gulf or elsewhere will show which node Washington thinks is still open.

Until the name drops, the only hard facts are the day, the adjective “large,” the Iran target, and the decision to wait until the memorials end. That is enough to put every corresponding-bank relationship with a Middle East or South Asian book on a watch list until Monday afternoon in Washington.