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FCA reg. 57

Cryptoasset businesses

Cryptoasset business definitions, FCA AML registration, the Travel Rule and the distinction between AML supervision and investment protection.

Independent regulatory guidanceSources reviewed: 16 October 2026UK jurisdiction
01 · Legal perimeter

Scope and supervision

Responsible supervisor

FCA for UK cryptoasset exchange providers and custodian wallet providers within the MLR registration perimeter.

Regulation 14A defines cryptoasset exchange providers and custodian wallet providers. Relevant exchange activities include crypto-to-money and crypto-to-crypto exchange and certain arrangements or automated-machine services. Custody includes safeguarding cryptoassets or private cryptographic keys on behalf of customers.

Regulations 54, 56 and 57 establish the register, the requirement to be registered and the application process. A firm must assess whether its activities are carried on by way of business in the UK and obtain the required registration before operating in scope.

MLR registration concerns AML/CTF supervision; it is not a blanket FCA authorisation, endorsement of a token or guarantee that losses will be covered by the Financial Services Compensation Scheme. Separate permissions and financial-promotion requirements may apply.

02 · Sector requirements

Rules specific to this sector

Regulation 56 contains the prohibition on acting in the specified businesses without required registration. Regulation 57 sets out the application and information framework; it is not, by itself, the complete registration duty. The authority assesses the application and relevant fitness and propriety under the statutory framework.

Applicants need evidence showing how their business model, governance and controls address financial-crime risks. Material changes or inaccuracies in submitted registration information must be notified under the applicable provisions; registration is not the end of supervisory obligations.

Practical application

Map each exchange and custody service to Regulation 14A. Use the current FCA application requirements and confirm the business's status on the FCA register before launch.

FCA cryptoasset AML/CTF regime (opens in a new tab)

03 · Regulatory framework

Core regulations explained

These duties apply where the business and activity fall within the relevant statutory scope. Sector-specific provisions, exceptions and proportionality conditions must be considered alongside each explanation.

Regulation 18 requires a relevant person to identify and assess its money-laundering and terrorist-financing risks. The assessment must consider customers, countries or geographical areas, products or services, transactions and delivery channels, as well as information made available by the supervisory authority. Its extent must be appropriate to the size and nature of the business.

Keep a written record and keep the assessment up to date unless the supervisor has determined that an individual documented assessment is unnecessary for the sector. Regulation 18A separately addresses proliferation-financing risk: the risk of breaches, non-implementation or evasion of financial sanctions connected with proliferation of weapons of mass destruction.

Practical application

Record the evidence behind each risk rating, the controls used to reduce the risk and the remaining exposure. Reconsider the assessment when the business model, customer base or relevant threats change.

MLR 2017, Regulations 18–18A (opens in a new tab)

Typology hotspots

Recurring risk indicators

  • Exposure to mixers, tumblers and privacy coins
  • OFSI-designated and OFAC-designated wallet exposure
  • Peer-to-peer ramp arrangements circumventing CDD
  • Rapid deposit-and-withdraw layering across chains
  • Non-compliant Travel Rule counterparties
How we help

Advisory support for the sector

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