UK Unveils Final Crypto Rulebook as FCA Cuts Stablecoin Capital Floor
Key Takeaways
The FCA cut stablecoin issuers’ capital floor to 1% of issued value, down from a proposed 2%, on June 30.The U.K. regime covers exchanges, custodians, staking and lending firms and takes effect Oct. 25, 2027.Crypto firms can apply for authorization from Sept. 30, 2026, narrowing the runway to comply.
A Landmark Framework Lands
The Financial Conduct Authority (FCA), Britain’s financial regulator, on June 30 finalized a sweeping framework that pulls crypto exchanges, custodians, stablecoin issuers and staking services into a full authorization regime for the first time. The final policy statements set prudential requirements, market-abuse controls and stablecoin standards, capping more than a year of consultations and draft proposals.
The regulator reduced the capital coefficient for stablecoin issuance to 1% from the 2% it had floated, leaving a final capital floor for non-systemic issuers at 1% of the value of tokens in circulation. The move eases one of the industry’s biggest complaints about the draft rules, which firms had warned could make U.K. stablecoin issuance uncompetitive against rival jurisdictions.
Lighter Capital Load for Stablecoins
Issuers must hold capital as a buffer against losses, and the size of that buffer shapes how cheaply they can operate. By halving the coefficient, the FCA signaled it wants London to remain a viable base for issuers even as the European Union’s Markets in Crypto-Assets (MiCA) regime and U.S. legislation compete for the same business.
The rules also require issuers of a U.K. qualifying stablecoin to meet authorization thresholds, hold backing assets, and give holders clear redemption rights. The framework leans on the Financial Services and Markets Act 2000 (Cryptoassets) Regulations 2026, which Parliament made on Feb. 4, bringing cryptoassets within the FCA’s remit. Market-abuse controls, modeled in part on rules for traditional securities, round out the package.
A Tightening Timeline
Firms can apply for authorization between Sept. 30, 2026, and Feb. 28, 2027, before the regime formally takes effect on Oct. 25, 2027. Exchanges, custodians, stablecoin issuers, staking providers, lending and borrowing platforms, and certain decentralized finance ( DeFi) operators with an identifiable controlling entity will all need to be authorized to serve U.K. customers.
By naming DeFi services with a controlling entity, the FCA has left room to regulate parts of the onchain economy that some operators had hoped would fall outside its reach. Firms that miss the authorization window risk being shut out of one of the world’s largest financial centers, a penalty that gives the timeline real teeth.
For an industry that has spent years in regulatory limbo, the package offers a measure of certainty even as it raises the compliance bar. The lighter stablecoin treatment, in particular, reads as an effort to keep issuers from routing their operations through MiCA-licensed European entities instead of seeking a U.K. license.
With the October 2027 start date now fixed, the window for firms to decide is narrowing, and the U.K.’s bid to compete with Brussels and Washington for crypto business will be judged on how many firms walk through the door.
