Trump’s Treasury Strikes Rogue Swiss Bank

Bronze seal of the Department of the Treasury mounted on a stone wall

Treasury under President Trump moves aggressively to sever a rogue Swiss bank’s access to the U.S. financial system, starving Iran and Russia-linked terrorists of over $100 million in dirty money.

Story Highlights

FinCEN proposes Section 311 rule to ban MBaer Merchant Bank AG from U.S. correspondent accounts over illicit ties to IRGC-Quds Force and Russian corruption.
MBaer allegedly funneled more than $100 million through American institutions for sanctioned actors, posing direct national security threats.
Treasury Secretary Scott Bessent warns global banks: expect aggressive enforcement to protect dollar integrity.
Rare action against a Swiss bank underscores U.S. leverage via dollar dominance amid sanctions evasion by Iran and Russia.

FinCEN Targets MBaer’s Illicit Operations

On February 26, 2026, the U.S. Department of the Treasury’s Financial Crimes Enforcement Network issued a Notice of Proposed Rulemaking under Section 311 of the USA PATRIOT Act. This targets MBaer Merchant Bank AG, a Switzerland-based institution, for its role in processing over $100 million through U.S. financial systems. FinCEN found reasonable grounds that MBaer serves as a primary money laundering concern, facilitating transfers for Iran-linked terrorist groups including the IRGC and its Quds Force, as well as Russian corruption networks. The proposal invokes special measure five, which would prohibit all U.S. banks from maintaining correspondent accounts for MBaer.

Treasury Secretary Bessent Signals Zero Tolerance

Treasury Secretary Scott Bessent issued a strong statement emphasizing the administration’s commitment to financial integrity. Bessent declared that MBaer has funneled over a hundred million dollars for illicit actors, and Treasury will aggressively protect the U.S. financial system. This action highlights the power of America’s dollar hegemony, forcing even secretive Swiss banks to comply or face isolation. Banks worldwide should take note, as this deters future sanctions evasion and safeguards national security from terror financing.

Historical Context and Precedents

Section 311, enacted in the 2001 USA PATRIOT Act, empowers FinCEN to designate foreign banks as money laundering threats and impose access bans. MBaer has enabled such activities since its inception, exploiting Switzerland’s banking secrecy to aid post-2022 Russian sanctions evaders and longstanding Iranian terror networks. Precedents include actions against Cyprus’s FBME Bank in 2014 and Latvian institutions for similar Russian laundering. This rare Swiss targeting follows a February 25 Treasury strike on Iran’s shadow fleet, showing a pattern of swift enforcement under the new administration.

Stakeholders and Power Dynamics

Key players include FinCEN as the enforcing agency, Secretary Bessent driving public deterrence, and MBaer as the accused profiteer from high-risk clients. Illicit beneficiaries like IRGC-Quds Force and Russian actors rely on such nodes for U.S. dollar access. The U.S. holds overwhelming leverage through correspondent banking dependencies, while Swiss regulators remain silent in available data. A whistleblower program fueled this intelligence, underscoring ongoing vigilance against global threats to American interests.

Impacts and Next Steps

If finalized after a 30-day comment period, MBaer immediately loses U.S. dollar channels, disrupting its operations and clients. Short-term effects hit Iranian and Russian networks hardest, blocking over $100 million in flows and raising compliance costs for other foreign banks. Long-term, this strengthens sanctions regimes, prompts global de-risking, and signals U.S. resolve. No MBaer response appears in records; finalization could occur soon, enhancing economic security and countering terror support without eroding constitutional principles.