Amex's banking arm fined $350m by OCC over AML gaps

The Office of the Comptroller of the Currency has fined American Express National Bank $350 million over shortcomings in its anti-money laundering and Bank Secrecy Act compliance work. The civil money penalty is the latest signal that federal supervisors are willing to act forcefully when banks fall short on financial crime controls.

The OCC, which oversees nationally chartered banks in the United States, announced the action against the Amex subsidiary. AML and BSA rules require lenders to monitor transactions, screen customers and report suspicious activity to authorities, obligations that have grown more demanding as regulators press for faster, more accurate detection.

For American Express, the penalty lands on its banking arm rather than the broader group, though such enforcement actions can carry reputational as well as financial costs. A fine of this size typically prompts a lender to revisit staffing, technology and internal review processes tied to compliance.

The case adds to a run of AML penalties levied on large financial institutions in recent years, underscoring how costly lapses in monitoring and reporting can become. Regulators have repeatedly said that robust compliance programs are a basic expectation for banks handling cross-border payments and large volumes of customer transactions.