The UK announces landmark cryptocurrency regulations with the FCA

The UK Financial Conduct Authority (FCA) has finalized a comprehensive legal framework for cryptocurrency assets, bringing the cryptocurrency sector under UK regulation for the first time.

6/30/20263 min read

UK reduces K-SII capital

The most significant concession in the final framework involved the FCA reducing the K-SII capital ratio for stablecoin issuance—a regulatory metric requiring companies to hold capital equal to a percentage of the total value of stablecoins they issue—from the previously proposed 2% to 1%. This halving followed a lengthy consultation process in which industry participants argued that the initially proposed capital ratio would create a disproportionate financial burden compared to comparable international regulatory regimes, potentially disadvantaging UK-based stablecoin issuers compared to competitors operating under less capital-intensive frameworks elsewhere.

Despite the concessions, the industry's reaction has been rather cautious rather than jubilant. Benoit Marzouk, CEO and co-founder of BCP Technologies, the issuer of the tGBP stablecoin, argued that even the requirement to reduce it to 1% "still presents significant challenges," noting that US regulatory approaches are likely to adopt a fixed capital requirement structure rather than the UK's percentage-based approach. This structural difference could create significantly different competitive cost dynamics between stablecoin issuers in the two jurisdictions depending on issuance size and growth trajectory.

FCA's supervision compared to the Bank of England

The UK's final regulatory framework establishes a separate regulatory structure, differentiating between system and non-system stablecoins based on their potential size and importance to the payments system. Most stablecoins will fall under FCA supervision through a standard cryptocurrency asset licensing regime, while those deemed system-based—potentially widely used for payments on a scale large enough to threaten the UK's financial stability—will be regulated under a separate, stricter regime managed by the Bank of England. The Treasury retains the formal authority to designate a payments system as system-based based on criteria established under the Banking Act 2009, including whether design flaws or operational disruptions could threaten the stability of the financial system or have serious consequences for UK businesses.

The Bank of England has published a policy statement and a draft Code of Conduct for system stablecoin issuers by June 22, 2026, establishing a temporary issuance protection mechanism set at £40 billion per system stablecoin instead of the previously consulted temporary holding limit for individual users.

Notably, the Bank of England's regulatory regime excludes stablecoins used primarily for trading cryptocurrency assets, which is currently the most common practical use case for stablecoins globally. Instead, they will remain under FCA supervision regardless of issuance size, maintaining a meaningful legal distinction between payment-oriented and transaction-oriented stablecoin applications.

Net risk position requirement

The final legal framework simultaneously establishes comprehensive provisions on market abuse applicable to eligible cryptocurrency assets and related instruments, including system and process requirements for trading platforms to prevent, detect, and disrupt market abuse, along with insider list maintenance obligations for relevant eligible cryptocurrency asset provisions that are essentially modeled after existing regulations on traditional securities market abuse, reflecting the FCA's stated approach of relying on equivalent existing financial services rules, where the underlying risks are similar between the cryptocurrency asset market and the traditional securities market.

To prudently manage cryptocurrency asset holdings, the FCA has simplified the initially proposed two-tier cryptocurrency asset classification system into a simpler legal framework: eligible cryptocurrency assets accepted on eligible UK trading platforms will be subject to a 40% uniform net risk position requirement coupled with a 40% counterparty default risk volatility adjustment, replacing the more complex multi-tier classification structure initially proposed during consultations, a simplification specifically requested by industry stakeholders to alleviate compliance complexity.

Assessment and Conclusion

The UK's final regulatory framework, particularly the relaxation of capital requirements following industry feedback, has placed the UK in a dynamic global competitive position, where major nations are simultaneously refining their stablecoin regulatory structures, each adjusting capital and reserve requirements with the understanding that excessive compliance burdens could divert stablecoin issuance to countries with more favorable economic and regulatory policies. The clear acknowledgment that US regulations are likely to apply fixed capital requirements rather than the UK's percentage-based approach suggests that structural regulatory design choices are not merely about percentage-based capital figures but significantly influence where global stablecoin issuers ultimately choose to locate their main operations.

Particularly for UK-based stablecoin issuers intending to operate in the UK, the final regulatory framework provides the necessary certainty to make specific business planning and capital allocation decisions ahead of the transition period spanning 2026-2027. Furthermore, the dual structure between the FCA and the Bank of England, differentiating between system-oriented payment-oriented and non-system-oriented transaction-oriented stablecoins, establishes a more sophisticated legal architecture compared to the more general approaches adopted in some other countries. This could give a competitive advantage to UK-based issuers whose stablecoins remain below the system threshold and thus avoid the Bank of England's stricter reserve ratio requirements.

Disclaimer: The information presented in this article is the author's personal opinion in the field of cryptocurrencies. This is not financial or investment advice at all. Every investment decision should be based on careful consideration of your personal portfolio and risk tolerance. The opinion in the article does not represent the official position of the platform. We recommend that readers do their own research and consult experts before making any investment decisions.

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