Anti Money Laundering Checks for Solicitors in the UK

Anti money laundering checks for solicitors are the client and transaction checks a UK law firm must run before it acts, and they carry on while the matter is live. Confirming who the client is comes first. From there, working out where their money comes from and whether the work itself carries a money laundering risk fills out the rest. Get them right and you meet your duty under the Money Laundering Regulations 2017. Get them wrong and the firm, not just the client, is the one a regulator comes after.

Written for compliance officers, MLROs, and fee earners who need the obligations in plain terms, this guide keeps to plain English. Start with who supervises legal-sector AML. From there it walks through the checks themselves and the step-by-step process. Last comes the question of how firms run those checks at volume without burying staff in manual work.

What Are Anti Money Laundering Checks for Solicitors?

Anti-Money Laundering (AML) checks are the measures a firm takes to make sure it is not helping someone move the proceeds of crime. For solicitors, the starting point is verifying who the client is and understanding their business. From there you scrutinise the source of any funds involved. Then you judge how much risk the matter carries before money or instructions change hands.

Sitting alongside Know Your Customer (KYC) checks, which establish identity, AML goes wider. Beyond "is this person who they claim to be," it asks whether the matter itself looks like laundering. The money and the client's broader pattern feed into that same question. Think of a property purchase funded by an unexplained overseas transfer. Your ID check can be spotless while the AML picture sets off every alarm in the room.

The duty is not optional and it is not a formality. Law firms in England and Wales doing work within scope of the regulations carry a statutory obligation to satisfy themselves on identity and on source of funds. Telling a regulator the money "came from a bank" does not discharge it.

Who Supervises AML for Solicitors in the UK?

Most UK law firms have been supervised for AML by the Solicitors Regulation Authority (SRA). According to the SRA's Anti-Money Laundering Annual Report 2024-25, 5,569 firms fell within scope of the money laundering regulations as of 5 April 2025, around two-thirds of the 9,149 firms the SRA authorises. So the rules reach a large slice of the profession. No niche corner here.

That picture is changing. On 21 October 2025 the government announced that AML and counter-terrorist financing supervision for lawyers will move from the SRA and other professional body supervisors to the Financial Conduct Authority (FCA), which becomes the Single Professional Services Supervisor. The reform folds 22 separate supervisors into one body and brings roughly 60,000 additional entities under the FCA. Once the professional bodies lose their formal AML role, the Office for Professional Body AML Supervision (OPBAS) is no longer needed and will be wound down.

Timing depends on legislation and funding, so the SRA remains the supervisor for now. Firms should track the transition rather than wait for it. Swapping the supervisor does nothing to soften the underlying obligations under the Money Laundering Regulations 2017. The current Legal Sector Affinity Group (LSAG) guidance, approved by HM Treasury, has applied since 23 April 2025 and remains the reference point.

Above all of this sits the wider UK framework. The National Crime Agency (NCA) leads on serious economic crime. Inside it, the Combatting Kleptocracy Cell, founded in 2022, targets potential money laundering by influential figures. Coordination of law enforcement on economic crime falls to the National Economic Crime Centre (NECC). And the UK aligns with global standards set by the Financial Action Task Force (FATF). For solicitors, the practical message is simple. You are one node in that system, and the checks you run are the system's first line of defence.

Why Solicitors Are a Target for Money Launderers

Law firms handle large sums and move money through client accounts. On top of that, they lend the respectability of a regulated professional to a transaction. Put those together and you have exactly what a launderer wants. Conveyancing gets flagged again and again as higher-risk legal work. So does trust and company formation. High-value asset purchases round out the list.

Scale sets the backdrop here. A Crime Survey for England and Wales recorded around 3.7 million fraud offences in the year to December 2022, with a large share of fraud believed to go unreported, which points to a far larger hidden problem. Fraud reported to the police through the National Fraud Intelligence Bureau rose 17% to 936,276 offences in the year ending March 2022, according to the ONS. Criminals rarely keep illicit gains in plain sight. Money gets routed through accounts and intermediaries, then parked in assets. Often the trail runs across borders, and a law firm that skips its checks becomes one of those conduits without realising it.

None of this assumes your clients are criminals. Explaining why the obligation exists is the whole point. Checks are the difference between a firm that can show it looked, and one that cannot.

The Core Anti Money Laundering Checks Every Firm Must Run

No fixed checklist comes with the regulations. What they require is a risk-based approach, where the depth of checking matches the risk of the matter. Even so, a set of core checks runs through almost every engagement.

1. Verify the Client's Identity

Every client provides proof of identity and proof of current address. For some, particularly in property or immigration work, evidence of the right to reside in the UK may also be needed. Corporate clients raise the bar. Here the identity work reaches the company itself, then its directors, then the ownership behind it, which you can begin to map through Companies House records before going deeper.

2. Understand the Client and the Matter

Find out what the client does and how they earn money. If they have used another firm before, it helps to understand why they moved. For a property sale, knowing how long they have owned the asset matters. The point is to build a picture that lets you judge whether the instruction makes sense for this client.

3. Establish the Source of Funds

This is where many firms come unstuck. Under the Money Laundering Regulations 2017 and the Proceeds of Crime Act, you must satisfy yourself about where transaction money comes from, and you cannot simply accept that it "came from a bank." Usually you start with a current bank statement showing the funds, backed by proof of origin. Sometimes that proof is a completion statement from a property sale. Sometimes it is written confirmation from an accountant. For high-value property work, expect to dig further.

4. Screen Against Sanctions, PEP, and Adverse Media Lists

Names should be checked against sanctions lists. Politically exposed person data comes next, then negative news. A sanctions match is a hard stop, because acting for a designated party can be a criminal offence in itself. A politically exposed person is not barred, but the match tells you to apply closer scrutiny. Screening is never a one-off. Lists move constantly, and a client who is clean at onboarding can surface on a list later.

5. Apply a Risk Assessment

Pull the picture together and grade the matter. Standard cases get standard due diligence. Higher-risk cases get enhanced due diligence, which is covered below. The assessment, and your reasoning, should be written down. If a regulator asks why you treated a client a certain way, the file needs to answer.

Customer Due Diligence and Enhanced Due Diligence

Customer due diligence (CDD) is the baseline. You identify the client, verify that identity from reliable sources, and understand the purpose of the relationship. The regulations let you scale the effort to the risk, but they never let you skip CDD entirely.

Enhanced due diligence (EDD) kicks in when risk is higher. For law firms the common triggers are familiar. Acting for a PEP raises the bar, and so does acting for a family member or close associate of one. A transaction touching a high-risk third country named by FATF or the UK government does the same. So does a complex or unusually large deal with no clear economic purpose, or a client you have never met face to face. In those cases you gather more evidence, probe source of wealth as well as source of funds, and document the extra steps.

Why does the distinction matter so much? Over-checking every client wastes time and irritates good clients, while under-checking the risky ones is how firms get into trouble. A defensible AML programme is one that can show it applied more scrutiny exactly where the risk sat.

Handling Cash and Client Account Payments

Cash deserves its own attention. The Law Society does not set a single national cash limit, because tolerance depends on the type of work a firm does, so this is a policy each firm sets under the risk-based approach. In practice, many firms cap acceptance at around £500 and decline larger cash sums for invoices or client-account deposits.

Caution here pays off. Large or unexplained cash is a classic laundering signal. So is money that arrives from a third party with no obvious link to the matter. If funds do not fit the client's profile, the answer is more enquiry, and where suspicion crystallises, a report. Cash itself is legal tender and does not automatically trigger a report to the NCA, but the circumstances around it can.

The AML Check Process, Step by Step

Pulling the obligations into a workflow makes them repeatable across fee earners. A typical sequence looks like this.

• Collect client information. Capture name, address, date of birth, and for corporate clients the registered details, directors, and ultimate beneficial owners.
• Verify identity. Confirm the data is genuine and belongs to the client, increasingly using electronic identity verification rather than paper alone.
• Assess the matter and risk. Judge the money laundering risk of the client and the work, and decide whether standard or enhanced due diligence applies.
• Screen the names. Run the client and connected parties against sanctions, PEP, and adverse media data.
• Check source of funds. Obtain bank statements and proof of origin before money moves, and probe anything that does not add up.
• Record the decision. Document the checks, the risk rating, and your reasoning so the file stands up to inspection.
• Monitor for the life of the matter. Re-screen as lists change and watch for transactions or behaviour that no longer fit the client's profile.
• Report suspicion. If you suspect money laundering, file a Suspicious Activity Report with the NCA, and remember the prohibition on tipping off the client.

Book an AML Screening Demo to see this workflow run on your own client data.

Manual Checks vs Electronic AML Verification

Plenty of firms still run AML on paper and spreadsheets. Low volume hides the cracks. As a firm grows, the approach stops working. Speed is one problem. Files drift between fee earners until no two look alike, and the whole exercise is first to slip when a deadline bites.

Electronic AML verification changes the economics. Identity gets confirmed against authoritative data sources in seconds. Names run against sanctions, PEP, and adverse media lists automatically, and every check leaves a timestamped record behind it. Speed is only part of the gain. Consistency comes with it, because every client goes through the same process, and so does defensibility, because the audit trail is built as you go rather than reconstructed later. For ongoing monitoring in particular, automation is close to essential. No team re-screens its whole client base by hand every time a sanctions list updates.

How KYC Hub Supports AML Checks for Solicitors

KYC Hub's AML screening and monitoring solution is built to carry the heaviest parts of this work. One pass tests clients and connected parties against sanctions, PEP, and watchlist data, drawing on global data coverage so a name is tested against the lists that actually apply to the matter. For a firm acting on cross-border or high-value work, that breadth is the difference between a check that looks complete and one that is.

Onboarding is not where the checks end. Continuous monitoring and AML alerts re-screen existing clients as lists change, so a designation that lands after you took the matter does not go unseen. Global adverse media intelligence surfaces negative news a name-only check would miss. Network intelligence maps the people and entities behind a client, which helps expose hidden links to sanctioned or politically exposed parties that a flat list check skips over.

Two outcomes are what a compliance team actually cares about. Catch the real risk. Keep false positives low enough that fee earners and the MLRO can clear the queue without it swallowing the day. Book an AML Screening Demo to see how it fits your onboarding and ongoing monitoring.

Conclusion

For UK law firms, anti money laundering checks are not box-ticking. Done well, they are the firm's defence against being used to launder money, and against the regulatory and criminal exposure that follows when a firm gets it wrong. Obligations stay stable even as supervision moves toward the FCA, and they reward firms that build a consistent, well-documented, risk-based process. Verify identity. Understand the client. Scrutinise the money before it moves, screen the names against the lists, and keep watching once the matter is live. Done properly, these checks protect the client, the firm, and the wider system at the same time.