Enhanced due diligence: when ordinary CDD is not enough
High-risk countries, PEPs, complex structures, unusual transactions and what EDD should add.
Executive summary
EDD is extra work for higher-risk relationships.It should produce a reasoned accept, mitigate or refuse decision.Senior approval and source evidence are central.Enhanced due diligence is not a punishment; it is the documented extra work an office performs when a relationship or matter carries higher AML risk. The point is to understand risk well enough for a senior person to accept, mitigate or refuse it.
Common EDD triggers include PEP involvement, high-risk geography, complex or opaque ownership, unusual source of funds, nominee arrangements, adverse media, sanctions proximity, urgent unexplained transactions and clients who resist ordinary questions.
Good EDD adds substance: stronger verification, source-of-wealth and source-of-funds evidence, senior approval, closer monitoring, specific conditions and a clear record of why the office decided the risk was manageable or not.
Who this applies to
This guide is for offices handling files where ordinary CDD does not explain the risk sufficiently.
- PEPs and close associates
- High-risk countries or sectors
- Complex company or nominee structures
- Unusual source-of-funds explanations
- Adverse media or sanctions proximity
- Urgent transactions with weak rationale
Legal and supervisory context
The purpose of EDD is not to collect more documents for its own sake. It is to reduce uncertainty enough that the office can make a defensible decision about whether to proceed.
EDD should be tailored to the risk. A PEP file needs wealth and funds work; an opaque company structure needs control and purpose work; a sanctions-adjacent counterparty needs ownership, control and legal-risk escalation.
What the office must actually do
When an EDD trigger appears, the office should pause automatic acceptance, gather targeted evidence, document residual risk and obtain senior sign-off.
- Record the EDD trigger.
- Collect targeted evidence, not generic paperwork.
- Document source of funds and source of wealth where needed.
- Clarify ownership, control and business rationale.
- Apply conditions or monitoring if risk is accepted.
- Refuse or exit where risk cannot be mitigated.
What good evidence looks like
A strong EDD record explains the trigger, the extra evidence requested, what was received, what remained unresolved and who accepted or refused the residual risk.
Common mistakes supervisors find
- Adding generic document requests that do not answer the risk question.
- Approving EDD without senior sign-off.
- Failing to state residual risk.
- Accepting unexplained urgency.
- Not converting EDD conclusions into monitoring conditions.
Practical checklist
- Identify the trigger.
- Pause acceptance where needed.
- Request targeted evidence.
- Assess residual risk.
- Record senior approval.
- Set conditions or refuse.
- Review sooner than ordinary-risk files.
- Raises EDD tasks from PEP, sanctions, UBO, adverse-media and transaction signals.
- Separates evidence collection from final human approval.
- Records residual-risk reasoning.
- Links accepted conditions to monitoring.
- Seals the EDD decision in the ledger.
FAQ
Does EDD mean the client must be refused?
No. EDD means the office needs more understanding and approval. Some files are accepted with controls; others are refused.
Is senior approval always needed?
For key high-risk categories such as PEP relationships, senior approval is a core control and should be evidenced.
Can EDD be completed after work starts?
Material EDD should be resolved before acting where possible, especially where acceptance itself creates risk.
Official references
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