UK Crypto Regulations: Hidden Pitfalls for Unwary Firms

The UK's Financial Conduct Authority has introduced proposed crypto regulations that may inadvertently broaden the scope of custody, potentially affecting platforms and software providers that do not identify as custodians. The FCA's Cryptoasset Perimeter Guidance, published recently, highlights several technical complexities that firms handling client crypto assets must be aware of. A key aspect of the rules is the 24-hour threshold for custody, whereby any firm or platform holding client assets for more than a day during trade settlement may be classified as a regulated custodian, necessitating a full safeguarding license. Additionally, validators and node operators must exercise caution, as providing 'added value' features such as user dashboards or yield tools may lead to the loss of their pure tech exemption, requiring them to seek approval for arranging staking. The FCA aims to enhance consumer protections and support fair, transparent markets with its new perimeter. Notably, the regulator has addressed the issue of 'shadow custody,' clarifying that if a crypto service provider can theoretically override a client's authority, it is considered a custodian, regardless of whether it guarantees not to exert that power. The guidance also emphasizes that the use of smart contracts, public blockchains, or decentralized elements does not exempt an arrangement from regulation. For stablecoin issuers, the rules are clear: issuance is only permitted if the issuer is established in the UK and manages the entire lifecycle, from initial offering to redemption and reserve maintenance. The FCA has invited feedback on these proposals until June 3, 2026, and plans to publish finalized rules in policy statements this summer, followed by the final perimeter guidance in September. The regulatory roadmap requires all entities providing crypto services to transition from the current money-laundering registration systems to a more stringent approval regime under the UK's Financial Services and Markets Act. Firms intending to continue operating under the new regulations must apply within a five-month window, from September 30, 2026, to February 28, 2027, to avoid potential fines, suspensions, and closures. Only those who apply during this period will be eligible for 'savings provisions,' allowing them to continue operating while the regulator reviews their applications.