The Financial Conduct Authority (FCA) is the UK's regulator for financial services, and the body responsible for supervising crypto-asset businesses operating in or targeting the UK market. Unlike the EU's single MiCA regulation, the FCA has built its crypto oversight incrementally, layering crypto-specific rules onto existing UK financial services legislation. For any business serving UK customers, understanding how the FCA's approach actually works matters as much as knowing the rules themselves.

1. What the FCA regulates

The FCA's crypto remit currently spans two main areas: registration for anti-money laundering purposes, which applies broadly to firms carrying out crypto-asset activities in the UK, and a separate, evolving authorisation regime for specific regulated crypto-asset activities as the UK's broader crypto framework develops. Firms need to assess carefully which regime applies to their specific activities, since the requirements and timelines differ.

2. AML registration: the baseline requirement

Most UK crypto-asset businesses need to register with the FCA under the Money Laundering Regulations before carrying out in-scope activities. This registration process examines the firm's AML/CTF controls, governance and fit-and-proper standing of key individuals | in practice, very similar territory to what a MiCA or FINMA review would test, even though it sits under different legislation.

3. The FCA's supervisory posture

The FCA has taken a notably assertive approach to consumer protection and financial promotions in the crypto space, including strict rules on how crypto-asset services can be marketed to UK consumers. Businesses that treat FCA compliance as solely an AML exercise, without close attention to promotion and disclosure rules, tend to run into trouble here specifically.

A pattern worth noting: FCA enforcement action against crypto firms has disproportionately targeted marketing and promotion breaches, not just AML failings. Getting the AML registration right is necessary but not sufficient.

4. Governance and accountability expectations

As with other regimes, the FCA expects clear, named accountability for compliance functions, robust risk assessment processes, and documentation that reflects how the business actually operates | not a generic policy adapted from elsewhere. Fit-and-proper assessments of directors and controllers are a standard part of the review.

5. How the FCA differs from MiCA and FINMA

A few distinctions matter in practice:

  • FCA registration doesn't extend to the EU or Switzerland | a business needs separate authorisation under MiCA or from FINMA to operate in those markets
  • The FCA's incremental, rule-layered approach means requirements can evolve faster and less predictably than MiCA's single harmonised text
  • The FCA's emphasis on financial promotions rules is more prescriptive than the equivalent provisions under MiCA or FINMA's principles-based approach

The bottom line

FCA compliance for a crypto business means more than an AML checklist | it means building governance, promotional practices and consumer-facing disclosures that hold up to one of the more assertive financial regulators in this space. Businesses that get ahead of the FCA's expectations on promotions and consumer protection, not just AML registration, tend to have a much smoother relationship with the regulator over time.