Anti-Money Laundering (AML) compliance plays a critical and multifaceted role in correspondent banking, acting as the primary safeguard against the misuse of cross-border payment channels for financial crime.

Correspondent banking—where one bank (the respondent) holds accounts with another (the correspondent) to facilitate international transactions—can present elevated risk because of limited visibility into the respondent’s customers and transaction activity.

Below is a structured analysis of AML compliance in this context, organized by its core functions and regulatory expectations.

1. Risk Assessment and Due Diligence (CDD & EDD)

The foundation of AML compliance in correspondent banking is rigorous due diligence applied to the respondent bank itself.

Know Your Customer’s Customer (KYCC)
While correspondents do not directly onboard the respondent’s customers, they must evaluate the respondent’s AML framework to infer downstream risk. This includes assessing customer segments, geographic exposure, and industry risk.

Enhanced Due Diligence (EDD)
EDD is required for higher-risk respondents, such as those operating in jurisdictions under increased monitoring or with complex ownership structures. Measures may include on-site visits, independent audit reviews, and transaction sampling.

Correspondent Banking Due Diligence Questionnaire (CBDDQ)
Standardized tools—such as those developed by the Wolfsberg Group—help assess AML governance, sanctions controls, and suspicious activity reporting frameworks.

2. Prohibition of Shell Banks

Applicable AML frameworks may prohibit or restrict relationships with shell banks—institutions with no physical presence and no affiliation with a regulated financial group.

Common controls may include:

• Confirm that respondents do not operate as shell banks.
• Ensure respondents do not allow shell banks to access their accounts.
• Obtain formal attestations and supporting policies verifying compliance.

3. Transaction Monitoring and Screening

Correspondent accounts (often nostro accounts) may be subject to ongoing monitoring for suspicious activity.

Sanctions Screening
All cross-border payments must be screened against global sanctions lists (e.g., UN, EU, OFAC). Correspondents remain liable even if a respondent’s controls fail.

Pattern Detection
Monitoring systems identify red flags such as layering, structuring, round-tripping, and unusual transaction volumes inconsistent with expected activity.

Periodic Reviews
Regular reviews of transaction flows assess counterparties, jurisdictions, and overall activity consistency with the respondent’s risk profile.

4. Information Sharing and Audit Rights

Effective AML compliance depends on transparency and cooperation between correspondent and respondent banks.

Common arrangements may include:

• Access to annual AML audit reports
• Rights to conduct on-site or remote reviews
• Timely responses to information requests on transactions or customers
• Compliance with international standards requiring prompt sharing of beneficial ownership information

5. Suspicious Activity Reporting (SAR) and Liability

Depending on the applicable framework, correspondent banks may have independent suspicious activity reporting obligations.

If unusual patterns are detected—such as sudden spikes in higher-risk corridors—the correspondent may need to consider reporting obligations under the applicable framework.

Failures to meet applicable reporting obligations can result in regulatory penalties and reputational harm.

6. De-Risking: Managing Unintended Consequences

Overly conservative AML practices have led to “de-risking,” where banks terminate entire categories of correspondent relationships.

While this reduces exposure, it can:

• Limit access to financial services in developing regions
• Disrupt remittance flows
• Push transactions into informal, less transparent channels

Regulators increasingly emphasize proportionate, risk-based approaches rather than blanket disengagement.

7. Regulatory Framework and Enforcement

AML compliance in correspondent banking is shaped by global regulatory standards, including:

• FATF recommendations on correspondent banking and wire transfers
• National AML laws (e.g., the U.S. Bank Secrecy framework)
• Regional directives such as the EU’s AML regimes

Enforcement actions in the sector have resulted in substantial penalties, illustrating the potential consequences of non-compliance.

8. Common AML Compliance Practices

Common practices may include:

• Risk-Based Approaches (RBA): Tailor controls to the respondent’s risk profile
• Regular AML Audits: Conduct periodic reviews of respondent controls
• Payment Transparency: Ensure complete and accurate transaction data
• Advanced Technology: Use AI and machine learning to enhance detection and reduce false positives
• Secure Information Sharing: Enable compliant and efficient exchange of AML intelligence

Conclusion

AML compliance in correspondent banking is not merely a regulatory obligation—it is a critical operational function that underpins trust in the global financial system. By combining robust due diligence, continuous monitoring, and collaborative information sharing, banks can mitigate financial crime risks while maintaining vital cross-border financial connections.

At the same time, AML frameworks can be calibrated to reduce unintended consequences such as de-risking, which may affect financial inclusion and economic development. Effective AML compliance can support safe and sustainable correspondent banking relationships.