FinCEN's suspicious-activity reporting rules govern detecting, escalating, filing and retaining US SARs. Deadlines and electronic filing join confidentiality and supporting documentation, connecting the decision to report with evidence retained for the required period and examination.
TL;DR:
- Banks report suspicious attempted or completed transactions meeting the rule's conditions.
- Requires factual assessment, filing timelines, retention and strict confidentiality.
- Alerts do not automatically require SARs; urgent cases can need separate law-enforcement notification.
Summary
A bank-specific suspicious-transaction rule
Section 1020.320 requires banks to report suspicious transactions relevant to possible violations of law or regulation when the rule's conditions are met. It covers transactions conducted or attempted by, at or through the bank. The criteria concern matters such as possible unlawful proceeds, evasion of BSA requirements or activity without an apparent lawful purpose after examination of the available facts. The cited provision is the bank rule, not the identical SAR regulation for every financial business.
From an alert to a supported filing decision
Monitoring can identify activity that needs investigation, but a system alert and a reportable transaction are different stages. The bank must consider the relevant facts, background and possible purpose against the rule's criteria. A SAR reports suspicion rather than establishing a criminal conviction. The regulation also allows voluntary reports of suspicious activity beyond the mandatory filing conditions, preserving a distinction between required and permitted reporting.
Timing, urgent situations and supporting evidence
The rule sets filing deadlines measured from initial detection of facts that may form the basis for a SAR, with a defined extension where no suspect is identified. Situations requiring immediate attention can also require prompt contact with appropriate law enforcement in addition to timely filing. The bank must retain the SAR and supporting documentation for the specified period and make the supporting material available to authorised authorities on request.
Confidentiality is part of the reporting framework
The existence of a SAR and information that would reveal it are subject to the regulation's confidentiality provisions, with defined permitted disclosures. These protections are separate from the obligation to document the underlying activity. Customer communications, internal escalation and cooperation with authorities must therefore be understood within the applicable rules. The reporting requirement complements AML programmes and customer due diligence without replacing either of them.
Keywords
- bank SARs
- 31 CFR
- suspicious transactions
- attempted transfers
- filing deadlines
- supporting records
- report confidentiality
- voluntary reports
- law-enforcement notices
- reporting criteria