UK FCA unveils sweeping crypto rules

The UK’s Financial Conduct Authority has set out the country’s first full regulatory framework for crypto firms, marking a major step in bringing the sector inside mainstream financial oversight.

The package covers capital, disclosure, liquidity and custody expectations for firms operating in the UK. It also shows the regulator softening some of its earlier ideas after industry criticism that the original proposals were too strict and risked pushing business elsewhere.

Crypto firms will be able to begin applying for authorization under the new regime from September 30, 2026. The framework is scheduled to take effect on October 25, 2027.

What the FCA is requiring

The FCA said firms will need to hold capital against risks and run annual stress tests. It is also tightening standards around operating practices for the sector, including liquidity and custody arrangements.

The framework is aimed at creating a clearer regulatory foundation for crypto in the UK while still protecting consumers. FCA officials said the point is not to leave crypto outside the rules, but to bring it into a defined supervisory perimeter.

The rules will matter most for stablecoin issuers and crypto trading firms, which face the most direct capital and operational obligations under the new regime.

Where the FCA softened its plan

Some of the sharpest changes from the FCA’s earlier proposals were reductions in capital demands. Non-systemic stablecoin issuers will face a 1% capital requirement, down from an earlier 2% proposal.

For crypto-trading assets, the FCA reduced the capital coverage requirement to 40% of net exposure, compared with an earlier proposal of 100%.

The regulator also said smaller and lower-risk firms will not have to publicly disclose their capital requirements. It further eased some expectations on pre-trade transparency, liquidity and custody.

That softer approach reflects pressure from the industry, which had argued that the original proposals could have made the UK a less attractive place to build or operate crypto businesses.

Why it matters

The new rulebook could shape which firms choose to operate in the UK and on what terms. Capital and disclosure rules can materially affect compliance costs, market entry and the appeal of a jurisdiction for firms deciding where to expand.

The framework may also influence how the UK compares with the US and the EU as governments compete to define the rules for crypto markets. For companies already operating in Britain, the application window opening in late September 2026 is the first immediate milestone.

The FCA said it will consult later on decentralized finance rules, focusing on cases where there is an identifiable controlling entity. That leaves one important part of the sector unresolved for now, even as the regulator has moved to establish a broader framework for the rest of the market.

The announcement gives the UK its clearest crypto rulebook so far, but the real test will come as firms respond, apply for authorization and prepare for the regime to come into force in October 2027.