America Turns Its Financial Power on Iran as Trump Administration Launches Sweeping Economic Offensive

WASHINGTON — The United States opened a powerful new front against Iran on Monday, launching an unprecedented financial campaign designed to isolate Tehran from the global economy and force governments and businesses around the world to choose between dealing with the Iranian regime or maintaining access to America's financial system.

Treasury Secretary Scott Bessent announced Operation Economic Outcast, describing the campaign as an effort to sever the financial networks that continue providing Iran with revenue, technology and access to international commerce.

The move represents a major demonstration of one of America's greatest strategic advantages: the enormous reach of the U.S. dollar, American financial institutions and the world's largest economy.

The Treasury Department formally expanded sanctions authority over five critical sectors of Iran's economy — aviation, digital assets, gold, shipping and technology. The determinations took effect Monday and dramatically increase the potential sanctions exposure facing companies and individuals operating in those sectors.

At the same time, the Treasury Department's Office of Foreign Assets Control moved against more than 60 entities, individuals and vessels around the world accused of helping Tehran obtain nuclear and missile technology, conduct cyber operations or generate revenue.

Bessent characterized the broader campaign as an “economic D-Day” and said Washington intends to pursue what he called the “single greatest financial offensive ever marshaled against an adversary.”

The message from Washington is straightforward: doing business with Iran could increasingly mean risking business with America.

That threat carries considerable weight because international banks, multinational corporations and governments depend heavily on access to the U.S. dollar and American financial markets. Secondary sanctions give Washington the ability to impose consequences even on foreign parties that may have little direct connection to the United States but continue conducting sanctioned business with Tehran.

The administration's strategy therefore extends far beyond Iran itself.

Countries and companies that continue providing economic lifelines to Tehran are being warned that they could face escalating American financial consequences. Bessent said Washington has identified the networks Iran uses to move money, sell commodities and evade existing restrictions.

“Any entity that facilitates money laundering on behalf of Iran will be removed from the U.S. Dollar system,” Bessent said while announcing the campaign.

The Treasury secretary also presented Tehran with two possible futures: deeper international economic isolation or a route toward normalization if the Iranian government changes course.

President Donald Trump's administration argues that economic pressure can accomplish American national-security objectives while reducing the need to rely exclusively on additional military force. The goal is to deprive Tehran of the revenue and international connections Washington says sustain Iran's military activities and Islamic Revolutionary Guard Corps.

The pressure is arriving while Iran's economy is already under extraordinary strain.

The Iranian rial fell to a new record low against the dollar Monday as markets anticipated Washington's latest measures. The currency traded at roughly 1.992 million rials per dollar on the unofficial market, according to exchange-rate tracking cited by MarketWatch.

For Washington, however, the success of Operation Economic Outcast will ultimately depend on enforcement.

Iran has spent decades developing methods to circumvent American sanctions, including opaque shipping arrangements, intermediaries, informal financial networks and increasingly digital assets. Major economic partners will also test how far the United States is prepared to go when sanctions enforcement intersects with broader trade and diplomatic relationships.

Bessent made clear Monday that Washington intends to use America's financial leverage aggressively, although the administration is allowing foreign governments and businesses an opportunity to change their behavior before the most severe consequences are imposed.

That creates a potentially powerful calculation for Iran's remaining economic partners.

They may continue helping Tehran maintain access to international commerce — or preserve their relationship with an American economy and financial system whose reach remains unmatched.

The Trump administration is betting that when confronted with that choice, much of the world will choose the United States.

Operation Economic Outcast is therefore more than another sanctions package. It is an attempt to turn America's economic dominance into a strategic weapon — tightening Iran's access to money, markets and international partners without requiring the United States to achieve every objective through military force.

The effectiveness of that strategy will become clearer as Washington begins enforcing the new restrictions. But the message delivered from the Treasury Department on Monday was unmistakable: the United States intends to make continued economic support for Tehran increasingly expensive — and increasingly difficult to hide.