The Swiss Financial Market Supervisory Authority terminated enforcement action against MBaer Merchant Bank AG, finding that the bank had an extreme lack of anti-money laundering controls and sanctions risk management. The move came after the bank supervisors found that the Zurich-based merchant bank had taken on board high-risk clients, without adequate mitigation controls.
MBaer filed an appeal to the Federal Administrative Court of Switzerland, which suspends the enforceability, by the court of Switzerland, of the ruling of FINMA until the court reaches a final decision. To provide a solution in the meantime, FINMA authorized an external audit agent that would control compliance and supervise the corrective measures.
This procedural dynamic reflects Switzerland’s emphasis on judicial oversight and proportionality in financial supervision. However, it also constrains the regulator’s ability to immediately impose management bans or capital restrictions, particularly in cases with cross-border implications.
FinCEN’s parallel intervention under Section 311
The Federal Financial Crimes Enforcement Network of the U.S. Treasury, sometimes referred to as FinCEN, gave a notice of proposed rule making under Section 311 of the USA PATRIOT Act. The measure listed MBaer as a primary money laundering concern and recommended the application of special measure five, the most intense remedy of the statute.
If finalized, the rule would prohibit U.S. financial institutions from opening or maintaining correspondent or payable-through accounts for MBaer. Public consultation is scheduled for 30 days before potential implementation.
U.S. Treasury Secretary Scott Bessent stated that MBaer allegedly “funneled over a hundred million dollars through the U.S. financial system on behalf of illicit actors tied to Iran and Russia,” framing the action as necessary to protect the integrity of the dollar-based financial system.
Scope of alleged misconduct
FinCEN’s proposal outlines more than $100 million in suspicious dollar-denominated transactions since 2019. The agency alleges facilitation of transactions linked to Iranian entities, including networks associated with the IRGC-Quds Force, as well as Russian sanctions evasion and Venezuelan corruption proceeds.
The notice further claims that certain bank executives were aware of deficiencies in compliance controls and failed to implement effective safeguards. These allegations expand the case beyond technical compliance lapses into questions of institutional accountability.
By invoking Section 311, FinCEN effectively leverages the centrality of the U.S. dollar clearing system. Even before finalization, the reputational impact of such a proposal often prompts voluntary disengagement by global counterparties.
Divergent regulatory tempos and enforcement philosophies
The Section 311 MBaer case illustrates structural differences between U.S. and Swiss enforcement frameworks. FINMA operates within a legal system that prioritizes appeal rights and proportional administrative remedies. Federal Administrative Court proceedings can extend 12 to 18 months, delaying definitive regulatory outcomes.
While the appointment of an audit agent ensures oversight, critics argue that the suspension of binding measures during appeal creates windows of uncertainty. According to Swiss regulatory statistics, approximately 20 percent of enforcement actions in 2025 involved interim monitoring arrangements due to pending appeals.
Switzerland’s Anti-Money Laundering Act requires regulators to demonstrate proportionality and evidentiary rigor before imposing sanctions. This safeguards institutional rights but may slow reaction times in fast-moving cross-border cases.
U.S. administrative velocity
Section 311 empowers FinCEN to act swiftly without waiting for foreign judicial processes. Since 2004, the U.S. has finalized 15 such measures, with most targeted institutions losing access to the U.S. financial system. In roughly 85 percent of cases, institutions either collapsed or restructured significantly after designation.
The tool’s deterrent effect lies in its immediacy. Even the proposal stage can prompt correspondent banks to preemptively sever ties, limiting exposure to secondary compliance risk.
In 2025, FinCEN expanded its use of Section 311 logic to emerging risk areas, including virtual asset mixers and opaque merchant banking models. The MBaer action fits within this broader enforcement posture emphasizing preemptive disruption.
Transatlantic coordination and friction
The United States and Switzerland maintain established channels for financial intelligence exchange, including memoranda of understanding and collaboration within the Egmont Group. In 2025, bilateral data sharing intensified in relation to Iran-related sanctions probes.
FINMA has confirmed contact with both MBaer and U.S. authorities, indicating ongoing coordination. Yet coordination does not eliminate divergence in enforcement timing. The U.S. administrative process may conclude before Swiss courts finalize appellate review.
This asymmetry can generate tension. Swiss authorities may view unilateral U.S. measures as pre-empting domestic judicial processes, while U.S. officials emphasize the need to protect the integrity of dollar clearing.
FATF and mutual evaluation pressures
Switzerland’s 2025 mutual evaluation cycle under the Financial Action Task Force highlighted concerns about delays in finalizing enforcement outcomes due to appeals. Approximately 40 percent of high-risk cases reportedly experienced prolonged timelines.
The Section 311 MBaer case could become a reference point in Switzerland’s 2026 follow-up assessments. To the American authorities, the case reflects the ongoing attention to counter the sanctions evasion and terror financing networks that are affiliated with Iran and Russia.
Both jurisdictions are likewise vulnerable to international compliance scrutinies, and this strengthens incentives to prove effective even despite the differences in processes.
Correspondent banking and systemic risk implications
The proposed ban on correspondent accounts goes to the core of the international activities of MBaer. The availability of the U.S. dollar clearing is also important to international trade and investment flows, such as the estimated 1.2 trillion of annual financial interconnections between the United States and Switzerland.
There is a possibility that the rule would be published and the U.S. banks would be obligated to screen foreign correspondents in order to make sure the indirect access is not provided. An increased number of due diligence requirements would encompass beyond direct links adding to compliance pressures throughout the industry.
Past Section 311 cases show that institutions often lose significant market confidence once designated. In 2025, threatened banks in Latvia and parts of Eastern Europe saw rapid counterparty withdrawal even before formal action concluded.
Spillover effects on Swiss merchant banking
Merchant banks occupy a specialized niche, frequently serving high-net-worth individuals and cross-border trade intermediaries. The MBaer developments have prompted broader scrutiny of this segment within Switzerland.
In 2025, FINMA increased audit frequency for higher-risk merchant institutions by roughly 15 percent. The regulator’s 2026 supervisory agenda includes intensified focus on sanctions screening and beneficial ownership transparency.
Peer institutions have reportedly strengthened transaction monitoring protocols for clients with exposure to Iran, Russia, and Venezuela, reflecting heightened sensitivity to secondary sanctions risk.
Remediation prospects and forward pathways
MBaer has indicated its intention to contest both Swiss findings and U.S. allegations, while engaging in consultations with American authorities. In comparable cases during 2025, institutions pursued divestment of high-risk portfolios and overhauled compliance teams to mitigate designation risks.
The Federal Administrative Court’s eventual ruling will shape FINMA’s ability to impose binding measures domestically. Meanwhile, FinCEN’s final decision may arrive sooner, potentially altering MBaer’s international standing irrespective of Swiss judicial timelines.
The Section 311 MBaer case underscores how regulatory asymmetries can redefine institutional viability in a globalized financial system. As U.S. administrative speed intersects with Swiss procedural safeguards, the outcome may influence not only MBaer’s trajectory but also the calibration of enforcement strategies across transatlantic corridors. Whether future frameworks can reconcile velocity with due process remains an open question with implications far beyond a single Zurich merchant bank.