The Correspondent Bank Relationship Under Pressure
A mid-sized bank maintains a correspondent banking relationship with a larger institution in a jurisdiction with weaker anti-money-laundering supervision. The correspondent provides US dollar clearing for the mid-sized bank's corporate customers. Over the last year, the mid-sized bank's transaction volume through the relationship has grown 40%, driven largely by two new corporate customers in a sector the correspondent has flagged as higher risk. The correspondent has asked for updated information on the bank's AML controls and customer base. Internally, the mid-sized bank's compliance team is under-resourced: two analysts cover the whole corporate book, and the transaction monitoring system produces a large backlog of unreviewed alerts. The relationship generates 18% of the bank's fee income. The board is reluctant to lose the relationship.
1. Why does the correspondent's request matter, and what are the risks of responding slowly or incompletely?
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Why it matters:
- The correspondent is itself subject to AML obligations and must be able to justify the relationship to its own regulator. It is conducting ongoing due diligence on its respondent.
- The growth (40%), the two new higher-risk customers, and the sector flag are exactly the triggers that cause a correspondent to re-assess.
Risks of a slow or incomplete response:
- De-risking - the correspondent may exit the relationship, cutting off dollar clearing, which can be existential for corporate customers.
- Suspicion - evasiveness or delay may be read as a sign that controls are weak, prompting a stricter response.
- Regulatory exposure - if the correspondent reports concerns, the mid-sized bank's own supervisor may take an interest.
- Reputational damage - an exit is visible to customers and the market.
The right response is full, timely and honest disclosure of controls, gaps and remediation plans - not a polished but incomplete picture. Concealing the monitoring backlog would be far riskier than disclosing it with a credible plan.
2. The compliance team cannot clear the alert backlog. What should the bank do, and what should it tell the correspondent?
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Internally:
- Prioritise the backlog by risk: alerts linked to the two new higher-risk customers and the flagged sector first.
- Resource the function - temporary analysts, a remediation project, or a system tuning exercise to reduce false positives.
- Assess whether the growth should be paused until monitoring capacity catches up; onboarding more volume into a backlog is compounding risk.
- Report to the board the true state of the control environment and the resourcing decision.
To the correspondent:
- Disclose the backlog honestly, with the numbers, the remediation plan, milestones and owners.
- Explain the risk-based prioritisation and the interim controls.
- Provide the requested information on customer base and controls.
- Offer a call between the compliance leads.
A credible remediation plan is far more reassuring than a claim that everything is fine. Correspondents expect gaps; they do not expect them to be hidden.
3. The board argues the relationship must not be lost because of its 18% fee contribution. How should management frame the decision?
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Management should reframe the question from 'how do we keep the relationship?' to 'what must be true for us to keep it responsibly?'
- Concentration risk: 18% of fee income from one relationship is itself a vulnerability; the board should have a plan to reduce dependence over time.
- The condition for keeping it is a control environment the correspondent can rely on - which means resourcing compliance and clearing the backlog, not lobbying the correspondent.
- The cost of keeping it badly - regulatory action, loss of the relationship anyway, or involvement in illicit flows - is likely to exceed the fee income.
- The decision should be documented: the board chooses to invest in remediation and to accept a possible temporary slowdown in growth, rather than to prioritise volume over controls.
Framing it this way gives the board a defensible position: they are not choosing between the relationship and compliance, but recognising that the relationship only survives if compliance is credible.