Money Service Business (MSB): AML Risk Guide
In brief: A money service business handles money transmission, currency exchange, cheque cashing, or related services and can create higher AML risk because it moves value for others.
Key points
- MSB clients need stronger understanding of activity, licensing or registration, ownership, and controls.
- Review payment flows, countries, counterparties, agents, and source of funds.
- The AML file should explain why the firm can safely act.
What is a money service business?
A money service business, often shortened to MSB, is a business involved in services such as money transmission, currency exchange, cheque cashing, or related value-transfer activity. These businesses can be legitimate, but they are often treated as higher risk because they move money for others.
Why MSBs create AML risk
MSB risk often comes from volume, speed, geography, cash exposure, agents, counterparties, and difficulty understanding the underlying source of funds.
What firms should check
- What services the MSB provides.
- Whether the business is registered or supervised where required.
- Who owns and controls it.
- Which countries, currencies, and counterparties are involved.
- How customer due diligence is performed by the MSB.
- Whether sanctions and suspicious activity controls exist.
- Whether financial records make commercial sense.
Evidence to keep
Keep registration evidence, ownership notes, transaction profile, policies, screening results, source-of-funds context, and the firm's risk decision.
This guide is general information for UK regulated firms, not legal advice. Check the Money Laundering Regulations 2017, HMRC's money laundering supervision responsibilities, and your supervisor's current guidance before making a compliance decision.