Enhanced Due Diligence (EDD)
Enhanced due diligence, or EDD, is the additional scrutiny applied where money laundering risk is higher. In the UK and the EU it is mandatory in prescribed cases — politically exposed persons, high-risk countries, correspondent banking — as well as wherever a firm’s own risk assessment says the baseline is not enough.
Also called: enhanced checks
Enhanced due diligence is not a different activity from ordinary customer due diligence. It is the same activity taken to greater depth, applied where the risk is higher.
In the United Kingdom and the European Union, some triggers are prescribed and leave a firm no discretion. EDD is mandatory for a relationship or transaction involving a high-risk third country, for a correspondent relationship, for a politically exposed person and their family members and known close associates, where false or stolen identification has been provided, and for any unusually complex or unusually large transaction, or pattern of transactions, with no apparent economic or legal purpose. The firm’s own risk assessment then adds cases beyond that list — ownership deliberately hard to see through, such as nominees or layered holding companies; a product or channel that hides the customer, such as fully remote onboarding or funding by third parties; activity that does not match what was expected. The United States has no general rule of this shape: its enhanced duties are sectoral, imposed by statute on certain foreign correspondent accounts and on private banking accounts held for non-US persons, so the trigger there is the account type rather than a risk score.
What gets added
In practice EDD means evidence instead of assertions: documented source of funds and source of wealth, adverse media and litigation searches, the ownership chain verified through to natural persons, and a shorter review cycle afterwards. Where the trigger is PEP status the UK and EU measures are specified rather than left to judgment: senior management approval to establish or continue the relationship, adequate measures to establish both source of wealth and source of funds, and enhanced ongoing monitoring.
The two source questions are routinely conflated and are not the same thing. Source of funds is the origin of the specific money in this account or transaction — the proceeds of a named property sale, a dividend from a named company. Source of wealth is how the customer came to have their net worth at all. A bank statement can answer the first and leave the second completely untouched.
FATF is the source of the international expectation that enhanced measures apply to foreign politically exposed persons and to higher-risk countries. Those are recommendations: what a firm must actually do comes from the law of the country regulating it.
In practice
EDD is not triggered by how large or profitable a customer is — and it is not purely a matter of the firm’s own risk assessment either. In the UK and the EU a set of categories makes it mandatory whatever the firm’s own view: high-risk third countries, correspondent relationships, politically exposed persons and their families and close associates, false or stolen identification, and unusually complex or large transactions with no apparent economic or legal purpose. Those prescribed cases are where firms are examined first.
Example
A prospective client is the adult child of a serving minister abroad, so is treated as politically exposed by association. CDD establishes identity and ownership. EDD asks where the opening deposit came from — the sale of a named property, evidenced by the contract — and separately how the family’s wealth was built. A director approves the relationship in writing before the account opens.
Commonly confused with
| Term | How it differs |
|---|---|
| Customer Due Diligence | CDD is the baseline applied to every customer; EDD is the deeper version applied only where the risk assessment calls for it. |
| Sanctions Screening | Sanctions screening is a pass-or-fail check against government lists run on everyone; EDD is a depth of investigation reserved for higher-risk cases. |
See also
- Customer Due DiligenceCustomer due diligence, or CDD, is the baseline set of checks a regulated firm performs on a customer: who they are, who owns and controls them, and what activity to expect. It is done at onboarding and then kept current for as long as the relationship lasts, with risk rather than a fixed calendar setting when it is revisited.
- Politically Exposed PersonA politically exposed person is someone entrusted with a prominent public function, together with their close family and known associates, who is treated as higher risk because such positions create opportunity for bribery and corruption. The label is a risk classification, not an accusation.
- Source of FundsSource of funds is the evidenced origin of the specific money in a transaction or account — where this particular payment came from and how it reached the customer. It is a narrower question than source of wealth, which asks how the customer accumulated their assets overall.
- Source of WealthSource of wealth is the evidenced account of how a customer accumulated their overall assets — the business they built, the inheritance, the years of earnings — as distinct from the origin of the particular money moving through one transaction.
- Know Your BusinessKnow Your Business, or KYB, is the verification of a corporate customer rather than an individual: that the entity legally exists, who owns and controls it, and what it actually does. It is the corporate counterpart to KYC, and the ownership chain is the hard part.