What Triggers Enhanced Due Diligence (EDD) for a CSP? (2026)

What is enhanced due diligence (EDD)?

Enhanced due diligence is the additional set of measures a CSP applies to higher-risk clients, on top of standard customer due diligence. Where standard CDD establishes who the client and beneficial owners are, EDD digs deeper into where the money comes from, why the structure exists, and whether the activity makes sense — and requires more senior sign-off.

EDD is risk-based and proportionate. It is triggered by the presence of one or more higher-risk factors, and its intensity scales with how much risk those factors present.

What factors trigger EDD for a CSP?

A CSP must go beyond standard CDD when the client presents elevated ML/TF risk. The common triggers are:

• Politically exposed persons (PEPs) — including their family members and close associates.
• High-risk jurisdictions — clients, owners or funds connected to higher-risk or sanctioned countries.
• Complex or opaque structures — layered holding companies, trusts or arrangements that obscure beneficial ownership without a clear commercial reason.
• Nominee arrangements — nominee directors or shareholders that place someone between the public record and the real controller.
• Unusual transactions — activity with no apparent lawful or economic purpose, or inconsistent with what the CSP knows about the client.
• Non-face-to-face or convoluted onboarding — where identity and control are harder to establish reliably.

What EDD measures does a CSP apply?

Once a trigger is present, the CSP applies additional measures proportionate to the risk. The table below maps typical EDD measures to what they add over standard CDD.

How does a CSP handle a politically exposed person (PEP)?

A PEP is a person entrusted with a prominent public function — and, by extension, their family members and close associates. Because that status carries higher corruption and ML risk, a CSP that identifies a PEP should apply EDD: establish source of wealth and source of funds, obtain senior-management approval, and apply enhanced ongoing monitoring.

PEP status is identified through screening at onboarding and on an ongoing basis. A client can also become a PEP during the relationship, which is why re-screening matters. Not every PEP is barred — but every PEP relationship should be understood, approved at a senior level, and watched.

What are source of wealth and source of funds?

Source of wealth is the origin of a client’s total assets — how they built their wealth overall. Source of funds is narrower: the origin of the specific money involved in the relationship or a particular transaction. EDD often requires both, because a plausible overall wealth story does not guarantee that a specific transaction’s funds are clean.

The CSP seeks a coherent, corroborated explanation and treats vague, evasive or unverifiable answers as a red flag — potentially one that warrants declining the relationship or considering a suspicious transaction report.

What should a CSP do if EDD cannot be satisfied?

If a CSP applies EDD and still cannot get comfortable — source of wealth or funds cannot be established, beneficial ownership stays opaque, or the answers do not hang together — it should not proceed with the relationship or transaction, and must consider whether the circumstances warrant a suspicious transaction report.

CorpSec AI supports this with an EDD radar: it flags the high-risk triggers, prompts for source-of-wealth and source-of-funds evidence, records senior-management approval, and holds a gate so a higher-risk engagement cannot advance while required EDD is incomplete — with the analyst deciding. For the red flags that often surface these triggers, see AML red flags in company incorporation.