Source of Funds and Source of Wealth under AMLR vs UK MLRs
[Updated September 2026]
Source of Funds and Source of Wealth comparisons for UK law firms with EU offices
The EU rules make SoF/SoW more trigger-specific and more closely tied to fund flows. The UK generally leaves the depth of enquiry to risk-based judgement, while the AMLR more often specifies when SoF/SoW must be obtained, whose funds or wealth must be examined and when both the origin and destination of funds must be understood.
It also introduces new mandatory triggers, including country-specific EDD measures, residence-by-investment cases and higher-risk TCSP relationships meeting the €5m / €50m thresholds.
UK MLRs
EU AMLR
Operational implication
Complex transactions
EDD applies where a transaction is unusually complex, unusually large, unusual in pattern or has no apparent economic/legal purpose. Firms examine background and purpose.
Applies where a transaction is complex, unusually large, unusual in pattern or lacks apparent economic/lawful purpose. Firms must examine the origin and destination of funds and purpose.
EU matter risk workflows may need a broader complexity trigger and structured fund-flow evidence, including origin and destination.
Before the relationship starts
SoF is generally obtained where necessary according to risk and matter context.
Where necessary to understand the purpose and intended nature, source and destination of funds must be obtained before the relationship or occasional transaction begins.
EU onboarding may need SoF and destination-of-funds fields earlier in the process, before client intake is completed.
EDD SoF / SoW
SoF/SoW is mandatory for specified triggers such as PEPs and certain high-risk-country cases; otherwise it's risk-based.
For higher-risk relationships, EDD measures may include additional SoF/SoW for the customer and beneficial owner; specified triggers make these measures mandatory, including PEPs, FATF Call for Action countries, residence-by-investment cases and certain high-wealth TCSP relationships.
EU EDD workflows may need trigger-specific SoF/SoW logic, with evidence made mandatory for PEPs, Call for Action countries, residence-by-investment cases and qualifying high-wealth TCSP relationships.
Increased Monitoring countries
Mandatory country-based SoF/SoW measures apply to FATF Call for Action countries. Increased Monitoring countries feed into the wider risk assessment.
FATF Increased Monitoring countries can attract prescribed, country-specific EDD measures, which may include SoF/SoW. Call for Action countries require the full EDD suite.
SoF/SoW requirements may need to vary by country and the specific weaknesses identified in its AML/CFT regime, rather than being driven by one high-risk-country flag.
High-wealth Trust or Company Service Provider (TCSP) clients
No equivalent fixed wealth/asset threshold.
Higher-risk TCSP relationships involving ≥ €5m assets handled and ≥ €50m total client assets require additional SoF measures.
High-wealth TCSP cases will require a broader client view, combining the value of assets handled on the matter with the client’s total wealth across the relationship to determine whether the EU trigger applies.
Ongoing monitoring
SoF is required on a risk-based basis - particularly where a transaction is inconsistent with the firm’s knowledge of the client, their business or risk profile.
Transactions must be monitored throughout the relationship against the firm’s knowledge of the client, business activity and risk profile, including origin and destination of funds where necessary
EU monitoring may need fund-flow information kept live and reusable, covering destination as well as source. Further detail pending from AMLA guidance.
Read more about UK MLRs vs EU AMLR
Frequently asked questions
Where will the AMLR create the biggest operational change in our current SoF / SoW model?
The shift is from a largely judgement-led process to one with more prescribed triggers, more structured fund-flow data and clearer requirements around whose SoF / SoW must be understood. That is likely to put more pressure on onboarding, matter teams and central risk functions.
How much more of the client relationship will we need to understand to establish SoF / SoW properly?
Potentially much more. In some cases, the AMLR requires firms to understand not only the funds involved in the immediate matter, but also beneficial-owner wealth, destination of funds and, for high-wealth TCSP relationships, the client’s total asset position.
Will our existing SoF / SoW data be reusable across offices and matters?
Only if it is sufficiently current, structured and relevant to the trigger. A narrative SoF conclusion collected for one matter may not answer an EU requirement concerning origin and destination of funds, a beneficial owner’s wealth or a country-specific EDD measure.
How should we think about the difference between source of funds and fund-flow analysis under AMLR?
They are related but not interchangeable. SoF explains how the money was acquired or generated; the AMLR also places greater emphasis on where funds originate and where they are going, particularly for complex transactions and ongoing monitoring.
Where could the same client require materially different SoF / SoW work in London and an EU office?
The main areas are domestic PEPs, FATF Increased Monitoring countries, complex transactions and specified high-wealth TCSP relationships. The underlying client may be the same, but the statutory trigger and depth of enquiry can differ by jurisdiction.
What will we need from our technology and data providers that we may not have today?
Potentially more than document collection. Firms may need tools that can separate customer and BO SoF / SoW, capture origin and destination of funds, retain evidence against the relevant trigger and reuse current information across the wider client relationship.
Additional resources
Bar associations for common jurisdictions
Belgium
- Orde van Vlaamse Balies – witwaspreventie (Flemish bars)
- AVOCATS.BE – anti-blanchiment (French/German-speaking bars, OBFG).
Belgium has no single national bar, so both apply depending on the bar of registration.
France
Conseil National des Barreaux – LBC-FT,
Germany
Italy
Consiglio Nazionale Forense – Antiriciclaggio.
Luxembourg
Ordre des Avocats du Barreau de Luxembourg – LBC-FT.
Netherlands
Nederlandse Orde van Advocaten – Wwft.
Spain
Abogacía Española – Prevención del Blanqueo de Capitales (OPBA).
EU level
- AMLA: regulatory instruments – tracks every guideline and technical standard as it's finalised
- AMLA: public consultations – draft guidance open for comment
- EUR-Lex: Anti-Money Laundering Regulation (AMLR) – the regulation itself
- EUR-Lex: sixth Anti-Money Laundering Directive (AMLD6) – the directive Member States transpose
Cross-border legal profession
- CCBE: anti-money laundering – guidance written for lawyers specifically, bridging UK and EU frameworks