Japan's Financial Services Agency issued a business improvement order to AEON Bank, Ltd. on 29 January 2025, citing the bank's failure to review thousands of transactions flagged by its own automated monitoring system and its chronic delays in submitting suspicious transaction reports to the authorities. The action represents a serious regulatory intervention in Japan's retail banking sector and places AEON Bank under close FSA supervision until satisfactory remediation is demonstrated.

The FSA found that AEON Bank left at least 14,639 transactions flagged by its automated anti-money-laundering monitoring system without making a determination as to whether they constituted suspicious activity. The unreviewed transactions were identified across two separate periods—June to November 2023 and July to September 2024—indicating that the bank's compliance function had not resolved a systemic backlog problem even after a first episode of the same failure had been identified.

REPORTING DELAYS AND COMPLIANCE FAILURES

Beyond the unreviewed flagged transactions, the FSA identified serious and prolonged delays in the bank's reporting of suspicious activity to the relevant competent authorities. AEON Bank took an average of 152 days to submit suspicious transaction reports, with the worst average reporting lag recorded in February 2024. Japan's Act on Prevention of Transfer of Criminal Proceeds sets clear expectations for the timely reporting of suspicious transactions, and the bank's performance fell substantially short of those requirements over an extended period.

The combination of unreviewed system alerts and delayed reporting represents a fundamental failure of the bank's anti-money-laundering control framework. An automated transaction monitoring system is only as effective as the human review processes that sit behind it. A backlog of nearly 15,000 unreviewed flags indicates that AEON Bank's compliance staffing, processes, or escalation procedures were inadequate to keep pace with the volume of alerts generated by its monitoring technology, a gap that the FSA has now formally required it to address.

AEON Bank operates as the banking arm of the AEON Group, one of Japan's largest retail conglomerates with operations spanning supermarkets, shopping centres, and a wide range of consumer services. Its integration within a major retail ecosystem means that the bank processes high volumes of everyday consumer transactions, making the robustness of its AML monitoring particularly important from a financial integrity perspective. The scale of the review backlog relative to that transaction volume will be an area of close regulatory attention during the remediation process.

FSA MANDATES IMPROVEMENT PLAN AND ESCALATION RISK

Under the terms of the business improvement order, AEON Bank was required to submit a formal business improvement plan to the FSA by 31 January 2025, just two days after the order was issued. The tight deadline underlines the urgency with which the FSA expects the bank to begin demonstrating credible corrective action. The bank is also required to submit quarterly progress reports to the agency, maintaining a structured accountability framework throughout the remediation period.

The FSA explicitly warned that stricter supervisory measures, including the possible revocation of the bank's operating licence, remain available if AEON Bank fails to make adequate and demonstrable progress in addressing the identified deficiencies. Licence revocation is an extreme sanction that has rarely been invoked in Japan's banking sector, but its explicit mention in the improvement order signals the seriousness of the FSA's concern and the potential consequences of inadequate follow-through by the bank.

The order was first published in Japanese on 26 December 2024, with the English-language version released on 29 January 2025. AEON Bank is expected to commit substantial resources to its compliance function in the near term, including possible investment in additional AML review capacity, process redesign, and technology enhancements, as it works to meet the FSA's requirements and reduce the risk of further enforcement action.