FCA Crypto Rulebook: October 2027 Compliance Deadline Set

The UK’s Financial Conduct Authority has published its final crypto rulebook. Firms trading, holding, or issuing cryptoassets–including stablecoins–must be fully compliant by October 25, 2027. The authorization window opens September 30, 2026. Pre-application support meetings start this July.

The framework is broad. Capital requirements, stress testing, and bans on insider trading and market manipulation are mandatory. Stablecoins get their own set of standards, with the FCA and Bank of England jointly consulting on any issuer designated as systemic by HM Treasury. The rules trace back to legislation enacted in February 2026, which brought cryptoassets under FCA jurisdiction.

Authorization is the immediate deadline. Firms that want to operate legally need to begin applications as soon as the window opens. The FCA said pre-application support meetings are available from July 2026. Smaller operators without large compliance teams will find those meetings useful. The FCA has been consulting with industry players throughout the drafting process, which likely softened some sharper edges.

Stablecoins are a separate, more complicated piece. When HM Treasury designates a stablecoin issuer as systemic, both the FCA and Bank of England will consult on how the rules apply. That distinction matters–systemic designation changes the stakes considerably. The collaborative approach appears designed to avoid gaps.