The UK's Financial Conduct Authority has finalized a broad crypto rulebook that brings exchanges, wallets, custodians, staking services and qualifying stablecoin issuers into a full authorisation regime — replacing a patchwork model built largely around anti-money-laundering registration and financial promotions.
The framework, published June 30, introduces mandatory licensing, custody standards, market-abuse protections, disclosure requirements and prudential rules. Firms seeking to carry out regulated crypto activities in the UK will need FCA approval. Applications open on September 30, 2026 and close on February 28, 2027, with the regime expected to take effect on October 25, 2027.
"We’ve created a framework that doesn’t force firms to choose between regulatory certainty and room to innovate – this regime means they can have both in a stable, competitive home to build and grow. For consumers, it means firms will be held to similar standards to other financial providers, though we can’t regulate away risk," David Geale, executive director of payments and digital finance at the FCA, said in a statement.
Stablecoin capital floor halved after industry pushback
The most concrete change is the reduction in the capital requirement for non-systemic stablecoin issuers from a proposed 2% to 1% of the total value issued. The FCA cited industry feedback that the original threshold was too costly for firms competing with offshore, US and EU issuers. The adjustment preserves core requirements around reserves, redemption rights, safeguarding and supervision.
The UK's stablecoin framework now operates on two tracks. The FCA supervises most qualifying stablecoin issuers and cryptoasset custodians. The Bank of England handles systemic stablecoins — those that could affect payments or financial stability — after its own £40 billion issuance guardrail replaced direct user holding caps.
That structure gives smaller and non-systemic issuers a lower capital bar while imposing Bank of England controls on issuance size, reserve composition and redemption resilience for those deemed systemically important.
Scope extends beyond stablecoins
The rulebook covers crypto exchanges, brokers, custodians, trading platforms, lending platforms and staking services. Trading platforms face stronger obligations to detect market manipulation, insider trading and abusive order-book activity. Custody rules raise expectations around asset segregation, security, insolvency handling and operational resilience. Customer asset protection, governance standards and financial-disclosure requirements all move closer to those applied to traditional financial institutions.
The FCA said market participants broadly welcomed the final framework, noting regulators incorporated several recommendations from the consultation process. Analysts say the rulebook could strengthen London's competitiveness in digital finance as tokenization, regulated stablecoins and blockchain-based financial infrastructure attract growing institutional interest.
Regulatory context
The UK move comes as major financial centers compete to establish clear crypto frameworks. The European Union's MiCA regime is already in force, the United States continues to expand federal oversight, and Taiwan's Virtual Asset Service Act cleared its legislature on the same day as the FCA's publication. All three jurisdictions restrict foreign issuers in some form — MiCA through EU passporting, the US through OCC registration requirements for foreign stablecoin issuers, and the UK through the FCA's authorisation gateway for offshore operators soliciting UK users.
Clear rules have been cited by banks, asset managers and payment providers as a prerequisite for broader participation in digital asset markets. Many have delayed UK expansion plans pending regulatory certainty. The FCA's final framework aims to remove that ambiguity.