Money laundering supervision and financial sanctions are separate compliance regimes. Treating them as one rule can give landlords and agents a misleading picture of their obligations. This archive article was corrected and checked on 17 October 2026.
What changed in May 2025
From 14 May 2025, letting agents became relevant firms for financial sanctions reporting. OFSI guidance explains when an agent must report knowledge or reasonable suspicion that a person is designated or that a sanctions breach has occurred, where the information arises through the relevant business. Reports must be made as soon as practicable.
The sanctions reporting requirement has no monetary rent threshold. Wider UK financial sanctions obligations also apply beyond letting agents; using an agent does not make sanctions irrelevant to a landlord.
AML supervision is different
HMRC's guidance on letting agency businesses uses a monthly rent threshold of 10,000 euros for the activities within its money laundering supervision regime. That separate threshold must not be imported into the sanctions rules.
Equally, the May 2025 change should not be described as a new requirement for every individual landlord to register as a supervised letting agency business. The role performed and the applicable regime matter.
Build a documented process
Agree who checks relevant parties, how possible matches are investigated and who handles reporting. Use current official guidance and the UK Sanctions List. Document decisions rather than treating a similar name as proof of a match.
Ask a qualified adviser to resolve uncertain cases before proceeding. A generic checklist cannot determine whether a particular transaction is permitted or whether a reporting obligation has arisen.