Money laundering refers to the process of concealing the origins of illegally obtained money, typically by passing it through a complex sequence of banking transfers or commercial transactions. While laundering itself is an ancient practice, the global legal framework addressing it has expanded dramatically in recent years, especially in response to growing concerns about terrorism financing and organized crime.
Global Evolution of Money Laundering Laws
Historically, money laundering was a lesser-known concern, but events over the past few decades have prompted governments to develop robust anti-money laundering (AML) statutes. Notably, significant changes followed high-profile terrorist attacks and evidence linking criminal activity to organized financial systems.
For example, the USA PATRIOT Act (2001) in the United States and various European Union directives have heightened scrutiny on financial transactions and client identity. International cooperation has also been strengthened through organizations such as the Financial Action Task Force (FATF), which sets global standards to combat money laundering and terrorist financing. This has resulted in more stringent requirements for businesses and individuals engaged in financial services.
Money Laundering in the UK and Elsewhere
In many countries, including the UK, regulations require professionals such as bookkeepers and accountants to record and retain evidence of clients’ identities for AML compliance. This is a legal obligation, designed to make it harder for criminals to disguise illicit funds within the financial system.
Key Purposes of Client Verification
- Due Diligence: Ensures that professionals investigate their clients’ backgrounds, taking steps to verify identity and assess risk.
- Client Identity Proof: Serves as documented evidence held by professionals. Should a client be involved in any criminal activity, this documentation is crucial for investigations and legal proceedings.
Due diligence typically involves requesting and examining documents that verify a client’s legitimacy. If a client is later implicated in money laundering, terrorist activities, or other crimes, having identity proof on file protects both the professional and broader financial sector.
Wider Impact and Common Reactions
Many practitioners, and most ordinary people, often perceive these requirements as bureaucratic and burdensome. Nevertheless, complying with these regulations is non-negotiable under the law. Every client engagement requires thorough client checks, regardless of the perceived risk.
What Constitutes Proof for Money Laundering Checks?
Compliance hinges on gathering and retaining two key types of documents:
- Photographic Identification: Such as a current driving licence or passport.
- Proof of Address: Typically a recent (within the last three months) utility bill, credit card statement, or local government correspondence showing your client’s name and permanent address.
Retention Requirements and Best Practices
Regulations commonly require that records be retained for at least five years from the end of the client relationship or the completion of the transaction. However, many professionals prefer to store documents longer, in case of future investigations or audits.
Practical Advice for Record-Keeping
- Photocopy only the relevant sections of documents, for example, do not include unrelated pages from a passport like travel stamps.
- In the UK, only black and white photocopies are acceptable; color copies are not allowed for compliance purposes.
- Use secure, organized filing systems to ensure client records are accessible for inspection if required by authorities.
Requirements may differ between countries. While UK rules specify black and white photocopies, the United States and other jurisdictions may have similar but not identical regulations. Always check local guidelines before accepting or storing documents.
| Document Type | UK Requirements | Common US Requirements |
|---|---|---|
| Photographic ID | Driving licence or passport; black & white copy | Driving licence, state ID, or passport; color or B&W depending on institution |
| Proof of Address | Utility bill, government letter, bank statement (recent) | Utility bill, lease agreement, bank statement (recent) |
| Retention Period | Minimum 5 years | Generally 5 years |
Case Study: AML in Practice
Consider the case of a UK-based accountant who failed to properly verify a new client’s identity. The client was later discovered to have laundered money through a shell company. Because the accountant had not retained proper evidence of due diligence, they faced legal consequences and reputational damage. This highlights why compliance is critical, not just for legal protection but also for maintaining professional trust.
Money Laundering and Inland Revenue
Professionals must also register with their country’s revenue authorities for AML purposes. In the UK, this means registering with HM Revenue & Customs (HMRC) and paying an associated fee. Failing to do so can result in significant penalties.
- HMRC provides comprehensive guidance on money laundering regulations for tax and accounting professionals.
- Similar agencies exist in other countries, such as the IRS in the United States, which have their own AML oversight programs.
To learn more about the practical side of running a bookkeeping business, including AML compliance, read our guide: Bookkeeping Business From Home.

