Every accountancy firm knows it needs to carry out AML checks before taking on a new client. Far fewer firms could confidently produce, on request, clear documented evidence of every check carried out over the past two years, linked clearly to the client and the date it was completed. This guide covers what UK money laundering regulations actually require, why documentation matters as much as the check itself, and how structured onboarding within EdgeAdvisory closes that gap.
What the Money Laundering Regulations Actually Require
UK accountancy firms are supervised under the Money Laundering Regulations and are required to carry out customer due diligence on every new client before an engagement begins. This means verifying the identity of individuals, establishing beneficial ownership for companies, understanding the nature and purpose of the relationship, and assessing the client's money laundering risk. Higher-risk clients require enhanced due diligence, involving more detailed checks and ongoing monitoring rather than a single point-in-time verification.
This is a statutory obligation, not an internal best practice, and professional body supervisors such as ICAEW and ACCA, alongside HMRC where relevant, have the authority to inspect a firm's AML compliance at any time, requesting evidence for any client relationship the firm holds.
Why Documentation Matters as Much as the Check Itself
This is the part of AML compliance that catches firms out most often. A firm that genuinely carries out thorough identity verification and risk assessment for every new client, but stores the evidence inconsistently across paper files, email threads and individual partners' personal records, is in a weak position if a supervisor asks to see that evidence during an inspection. From a regulatory standpoint, an undocumented check and a check that was never performed are treated identically, because the supervisor has no way to distinguish between them.
This makes structured, consistent record-keeping just as much a compliance requirement as the underlying due diligence work, even though it is often treated as a secondary administrative task rather than a core part of the onboarding process.
How Structured Onboarding Closes the Gap
EdgeAdvisory captures identity verification, beneficial ownership information, risk assessment and supporting documentation as a structured part of client setup within Business Central, rather than as paperwork stored separately from the main client record. New engagements can be configured so they cannot formally proceed until the required AML checks are marked complete, removing the dependency on individual staff remembering to carry out and document checks consistently, particularly during busy periods when steps are most at risk of being rushed or skipped.
This same structure supports ongoing monitoring, a requirement that is often less well understood than initial onboarding checks. Money laundering regulations require periodic review of client risk throughout the relationship, not just at the start, and a system that flags clients due for reassessment removes the reliance on staff remembering to revisit a client's risk profile unprompted.
What This Looks Like in Practice
A firm undergoing a routine ICAEW AML inspection produced evidence of completed identity verification and risk assessment for every client requested, directly from Business Central, in a fraction of the time a similar inspection had taken under the firm's previous paper-based filing system, where evidence had to be physically located client by client.
A practice configured new client engagements to remain on hold within EdgeAdvisory until AML checks were confirmed complete, catching an instance where a partner had begun preliminary work for a new client before the formal onboarding process, including identity verification, had actually been finished.
Getting Started on AML-Compliant Onboarding
The most useful starting point is an honest review of how consistently AML evidence is currently captured and stored across the firm, and whether that evidence could be produced quickly and completely if a supervisor requested it today. Where the answer is uncertain, structuring onboarding within Business Central is the most direct way to close that gap going forward.
The Advantage Transformation Sprint is a free, no-obligation session that reviews current onboarding and AML record-keeping practices and identifies the structural changes that would give your firm stronger, more defensible compliance evidence.
Build Auditable AML Onboarding with EdgeAdvisory
Advantage builds EdgeAdvisory, our Business Central accelerator for accountancy and advisory firms, to keep client onboarding and AML evidence structured, consistent and auditable. If you want to reduce the compliance risk of scattered paper-based AML records, speak to our team.
Contact Advantage today or call 020 3004 4600.
Read more about EdgeAdvisory for accountancy and advisory firms or explore Dynamics 365 Business Central.
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