Understanding Customer Due Diligence (CDD)

October 5, 2025

Customer Due Diligence (CDD) is the cornerstone of every Anti-Money Laundering (AML) framework. Under the UK Money Laundering Regulations 2017, all regulated businesses — including estate agents, solicitors, accountants, and financial advisers — must verify who their clients are, assess the risks they pose, and monitor transactions over time.

Done correctly, CDD protects both your firm and the wider financial system from being used for money laundering or terrorist financing. Done poorly, it exposes you to regulatory fines, legal action, and reputational damage.

What Is CDD and Why It Matters

CDD means verifying the identity of customers, understanding the purpose of the business relationship, and assessing the risk of money laundering.

It applies whenever you start a new client relationship, perform an occasional high-value transaction, or suspect that an existing client’s circumstances have changed.

Failing to complete CDD is not optional — if you can’t verify a client, you must not proceed with the transaction.

How AML Buddy Helps

AML Buddy automates client verification and screening so you never skip a required step. Its digital workflow ensures every new client is verified, risk-scored, and recorded automatically — fully aligned with HMRC and FCA standards.

Standard CDD Requirements

For most customers, standard due diligence involves:

  • Identifying the client using reliable documents such as passports, driving licences, or national ID cards.
  • Verifying the address with recent utility bills or bank statements.
  • Identifying beneficial owners (people who own or control more than 25 % of a company).
  • Understanding the relationship’s purpose, such as the reason for a property purchase or investment.
  • Verifying representatives acting on behalf of clients and confirming their authority.

The level of detail should always reflect the client’s risk level — simple cases require straightforward checks, while complex or higher-risk clients need deeper verification.

How AML Buddy Helps

AML Buddy lets you send each client a secure AML Link to complete ID and document verification online. The platform validates ID documents, matches facial biometrics, and confirms addresses instantly — producing a regulator-ready report in seconds.

Enhanced Due Diligence (EDD)

When a client or situation presents higher risk, you must perform Enhanced Due Diligence.

EDD typically applies when:

  • The client is from a high-risk country.
  • The client is a Politically Exposed Person (PEP) or a close associate.
  • A transaction is unusually large or complex.
  • The relationship is non face-to-face or involves opaque ownership.

EDD requires gathering extra evidence of identity, verifying the source of funds and wealth, obtaining senior-management approval, and performing ongoing enhanced monitoring.

How AML Buddy Helps

AML Buddy automatically detects risk triggers — such as PEP status or high-risk jurisdictions — and prompts the user to collect additional documentation. Built-in workflows guide you through each EDD step and record every action for audit purposes.

Sector-Specific Examples

Estate Agents

Must verify both buyer and seller, confirm the source of funds, and retain documents for five years.

AML Buddy automates identity checks and flags high-risk transactions, keeping every client file HMRC-ready.

Solicitors

Handle high-value property and trust transactions.

AML Buddy simplifies onboarding with digital ID capture, sanctions screening, and a complete audit trail to satisfy SRA and LSAG requirements.

Independent Financial Advisers

Need to verify investors and monitor large transfers.

AML Buddy enables fast client verification and continuous PEP/sanctions monitoring, ensuring FCA-level compliance with minimal admin.

Accountants

Verify company ownership, beneficial owners, and client funds.

AML Buddy performs instant KYB checks, cross-references Companies House data, and maintains compliant five-year records.

Best Practices for CDD

  1. Use reliable documents or electronic verification to confirm identity.
  2. Verify beneficial ownership through independent records.
  3. Confirm the source of funds and wealth with evidence.
  4. Screen against sanctions, PEP, and adverse-media databases.
  5. Maintain clear, secure records of all checks and communications.
  6. Apply a risk-based approach — focus deeper scrutiny where risk is higher.
  7. Train staff and review risk assessments regularly.

How AML Buddy Helps

AML Buddy unifies all these practices in one system: identity verification, PEP/sanctions screening, beneficial-owner mapping, and secure document storage. It continuously re-screens clients and sends reminders for expiring documents — ensuring nothing slips through the cracks.

Ongoing Monitoring and Record Keeping

CDD doesn’t end after onboarding. Firms must monitor client activity and refresh data periodically.

Records must be kept for at least five years and produced promptly during regulatory audits.

How AML Buddy Helps

Every action inside AML Buddy is time-stamped and archived automatically. Reports, IDs, and correspondence are stored in encrypted UK data centres and easily exported for HMRC or FCA reviews — no manual filing needed.

Turning Compliance Into Confidence

Customer Due Diligence is not just a legal duty — it’s a trust-building process that protects your business and your clients.

With AML Buddy, firms of any size can achieve enterprise-grade AML compliance without complexity or delay.

  • Faster onboarding
  • Automated verification and monitoring
  • Audit-ready reports
  • Zero contracts or minimums

AML Buddy — AML compliance, made refreshingly simple.