The Trump administration is preparing to intensify its financial campaign against Iran, with Treasury Secretary Scott Bessent signaling that another major bank could soon face U.S. sanctions.
The expected move reflects Washington’s broader effort to restrict the financial channels that allow Tehran to access foreign currency, move oil revenues and maintain connections with international markets.
Rather than relying only on traditional trade restrictions, the administration is increasingly targeting the banking infrastructure behind Iran’s economy. The strategy aims to make financial institutions think twice before maintaining relationships with Iranian entities that Washington considers part of the regime’s economic network.
Banking System Becomes Washington’s Pressure Point
Bessent has repeatedly warned that banks facilitating financial activity connected to Iran could face consequences. He previously said the administration knew which institutions were supporting Tehran and that additional bank sanctions were likely to follow.
The Treasury secretary’s comments suggest the administration is pursuing a continuing sanctions campaign rather than treating individual designations as isolated actions. Reuters reported that Bessent had indicated another bank sanction could be announced, reinforcing the expectation of additional measures.
The approach gives Washington a powerful tool because major banks depend heavily on access to the U.S. financial system. Losing that access can create significant difficulties for institutions that conduct international transactions or rely on dollar-based payments.
Why Bank Sanctions Matter
Targeting a bank can have consequences far beyond the institution itself. International financial institutions often maintain relationships with multiple banks, payment networks and corporate customers.
When one institution is designated by the U.S., other banks may reduce or terminate their dealings with it to avoid exposing themselves to American penalties. That creates a wider financial isolation effect.
For Iran, the consequences could be particularly significant because the country depends on external channels to convert oil earnings, conduct international trade and obtain access to foreign currency.
Washington therefore views financial sanctions as a way to increase pressure without directly targeting every company involved in Iranian commerce.
Treasury Expands the Broader Campaign
The potential bank action comes as the Treasury Department continues adding new Iran-related sanctions. Treasury’s Office of Foreign Assets Control listed fresh Iran-related designations on September 8 and September 9, alongside other measures involving counterterrorism activities.
Earlier this month, the administration also imposed extensive sanctions targeting Iran’s aviation sector. The measures included restrictions involving airlines, front companies, cargo handlers and intermediaries accused of helping Tehran obtain aircraft or sensitive technology.
These actions show that Washington is attempting to attack several parts of Iran’s economic infrastructure simultaneously. The banking sector, however, remains particularly important because financial institutions can serve as intermediaries connecting different industries to the international economy.
Turkey and Other Financial Gateways Under Scrutiny
The sanctions strategy also extends beyond Iran’s borders. The United States recently sanctioned Turkey’s Golden Global Yatirim Bankasi, accusing the institution of helping transfer Iranian oil revenue from China through Turkey and converting those proceeds into cash and gold.
Washington described the bank as an important financial lifeline for Tehran. The case demonstrates the administration’s willingness to target foreign institutions rather than limiting sanctions to Iranian companies.
That approach could increase pressure on banks in countries that maintain commercial relationships with Iran. Financial institutions may become more cautious about processing Iranian-related transactions if they believe those activities could trigger U.S. action.
A Strategy Designed to Force Tehran Back to Negotiations
Bessent has presented the sanctions campaign as part of a broader strategy intended to force Iran toward an agreement. His comments indicate that the administration believes increasing economic pressure can weaken Tehran’s ability to resist negotiations.
The goal is not simply to punish financial institutions but to reduce the resources available to the Iranian government. This strategy also reflects Trump’s preference for using economic leverage alongside diplomatic and military pressure.
However, the effectiveness of sanctions will depend partly on whether Iran can continue developing alternative financial routes through countries willing to maintain trade ties.
Global Banks Face a Difficult Choice
The prospect of additional sanctions creates another challenge for international financial institutions. Banks must balance commercial opportunities against the possibility of losing access to the U.S. financial system. For many global institutions, that calculation makes compliance with Washington’s sanctions regime a higher priority.
As the Trump administration expands its campaign, the consequences could therefore reach well beyond Iran.
The expected bank designation is another indication that Washington intends to use America’s financial influence aggressively. If additional institutions are targeted, the campaign could further isolate Tehran from international banking networks and increase pressure on countries and companies that continue doing business with Iran.
For now, the message from Washington is increasingly clear: financial institutions that help sustain Iran’s international economic connections could become the next targets of U.S. sanctions.
