Updated August 24, 2026 at 11:02 AM PDT
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Treasury Secretary Scott Bessent has unveiled a new round of U.S. economic sanctions on Iran, in what President Trump has called an "economic D-Day."
"Our objective is to sever every economic lifeline that sustains this tyrannical regime until Tehran stands alone," Bessent said Monday. The administration is calling the measures "Operation Economic Outcast."
"Those who tether themselves to Tehran should expect to share in the isolation of a withering regime," he added.
What are these new sanctions and how much more pressure can they pile on?
The U.S. already has extensive sanctions on Iran, some stretching back almost 50 years. And as recently as June, the U.S. had imposed further penalties for entities that helped Iran evade existing financial restrictions. There has also been a months-long U.S. naval blockade of Iran, which has cut off most goods to Iran from the outside world.
This latest suggestion from President Trump and Bessent appears to be focused on putting more pressure on the countries and governments — not just the businesses — that host the entities providing cashflow for Iran.
In an editorial for the Financial Times published overnight, Bessent wrote, "our objective is to sever every economic lifeline that sustains the tyrannical regime until Tehran stands alone." He appeared to reference countries that still trade with Iran, saying they should "consider the consequences of doing so."
That includes China, Iran's biggest oil customer, which Bessent criticized last week for historically buying about 90% of Iran's oil.
A statement from the Treasury Department said among the targets of the new sanctions is "a network of brokers, companies, and shadow fleet vessels operating across the United Arab Emirates (UAE), Hong Kong, China, Singapore, Switzerland, Europe, and other regions to transport Iranian oil and channel revenue to the Islamic Revolutionary Guard Corps-Qods Force (IRGC‑QF) and other regime elements."
But some analysts question the actual utility of fresh economic sanctions.
Alan Eyre, a former American diplomat who was part of the U.S. negotiating team over Iran's nuclear program until 2015, told NPR's Emily Feng that the U.S. has already targeted "the low-hanging fruit, the mid-hanging fruit, the high-hanging fruit, the tree," and that "there are no new sanctions that are effective."
Iran vows a "seismic" retaliation to any sanctions
Iran's new security chief, Mohsen Rezaei, said in an interview on state TV over the weekend that Iran would retaliate in a "seismic manner" to Trump's latest attempt at economic warfare. Rezaei, a hard-liner who used to lead Iran's paramilitary Revolutionary Guard, is now a military adviser to Iranian Supreme Leader Mojtaba Khamenei.
Rezaei warned Gulf states that any countries partnering in these new economic restrictions would be considered an enemy of — and a target for — Iran.
Since the U.S. and Israel launched their war on Iran nearly six months ago, Iran has attacked U.S. bases in Jordan and Gulf countries including the United Arab Emirates, Kuwait and Saudi Arabia. Several have led to serious injuries and fatalities.
Rezaei said Iran would retaliate by further targeting oil tankers that are transiting the Persian Gulf on the Omani side of the Strait of Hormuz, warning that "not even a single drop of oil will leave the region."
Iran is not currently interfering in these routes, so such actions could further hamper oil supplies. Energy exports from the Gulf region have already suffered the biggest disruption in their history because of the war and Iran's closure of the Strait of Hormuz.
Gulf countries that invested billions on pipelines that can help avoid the Strait of Hormuz have not yet commented on the U.S. plans for fresh sanctions.
New sanctions will make a dire economic situation worse for ordinary Iranians
Iran has weathered some U.S. sanctions for almost half a century, since the Islamic Revolution of 1979, with ordinary Iranians bearing the brunt of the subsequent economic pain.
The Iranian economy was already struggling when the U.S. and Israel launched this war against Iran in February, with double-digit inflation and currency devaluation. According to the Iranian government's Statistical Center of Iran, inflation is now at almost 90%.
In anticipation of the fresh sanctions, Iran's rial currency plunged — hitting more than 2 million rials to the dollar, according to online currency exchange trackers.
NPR spoke to one 30-year-old Iranian woman who said most ordinary Iranians are now buying food using a credit system because they do not have enough cash.
"Since I am in debt to the grocery store, I couldn't even buy tomato paste to cook pasta," she told NPR's Hadeel Al-Shalchi. She did not want to be named for fear of retaliation from the Iranian government.
She said lifesaving medicines like insulin have become too expensive for many, and that daily life is becoming increasingly difficult, with frequent power cuts and unemployment rising.
Economic pain and the high cost of living were among the factors driving Iranians to protest on the streets earlier this year, in demonstrations that were met with a deadly government crackdown.
The U.N. wants to help get goods through Hormuz
Separately, while the Trump administration steps up sanctions, the United Nations is proposing to be a neutral arbiter to get some goods flowing through the Strait of Hormuz.
The war with Iran has not only disrupted the global fuel trade. It is also having a big impact on the flow of fertilizer and other commodities, and driving up prices.
U.N. Secretary-General António Guterres is calling on everyone to respect international law and allow civilian trade.
"Maritime chokepoints must never become instruments of coercion and the world's food supply must never become the collateral damage of conflicts," he told reporters in New York on Monday.
The U.N. is ready to monitor civilian shipping in the strait, he said, but countries involved in the conflict need to agree.
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