The UK’s crypto regime has moved from consultation towards implementation after the Financial Conduct Authority finalised its wider rulebook and published a joint approach with the Bank of England for supervising systemic stablecoin issuers.

Industry figures broadly welcomed changes made following consultation, including simpler stablecoin capital requirements and adjustments intended to make redemption, trading and safeguarding rules more workable.

However, the reaction has also shifted towards the work firms will need to complete before the regime takes effect, from securing authorisation and strengthening governance to meeting new reconciliation, reporting and operational resilience requirements.

FCA finalises the wider crypto regime

The FCA’s final package covers trading platforms, intermediaries, custodians, stablecoin issuers and firms arranging staking.

It applies established financial services requirements, including the Consumer Duty, alongside new prudential, safeguarding, disclosure and market integrity rules. Firms will face capital and stress-testing requirements, while trading platforms will need controls addressing insider dealing and market manipulation.

The authorisation gateway will open on 30 September 2026 and close on 28 February 2027. The mandatory regime will begin on 25 October 2027.

Until then, the FCA’s oversight of crypto firms will remain largely limited to anti-money laundering requirements and financial promotions.

Michael McCormick, financial services managing consultant at audit, tax and consulting firm RSM UK, said the FCA had retained the central framework while making concessions where the consultation proposals risked becoming too rigid.

“The final rules are still demanding, particularly on safeguarding, disclosures, market abuse and Consumer Duty, but they are more operationally realistic,” he said. “For crypto firms, this is no longer a question of watching the regime develop; the authorisation race has effectively started.”

Stablecoin proposals become more workable

Several of the most significant changes apply to stablecoin issuers.

The FCA has halved the coefficient used to calculate the stablecoin issuance capital requirement from 2% to 1%, making the requirement less onerous as issuers grow.

It has also removed the need to estimate redemption forecasts, adjusted redemption timelines, confirmed that backing assets will be held through statutory trust arrangements and allowed issuers to hold up to 5% in excess assets within the backing pool.

The FCA has dropped unallocated backing fund accounts and removed proposed requirements for some firms to disclose their own-funds and liquid-asset thresholds publicly.

Renuka Rawlins, director of policy and government relations at The Payments Association, described the reduction in the stablecoin capital coefficient as a “major victory for proportionality”.

“The wider amendments to the stablecoin regime show a deeply welcome commitment to practical operations,” she said. “Key refinements demonstrate a regulatory approach tailored to how real-world crypto markets function.”

Nick Jones, founder and chief executive of digital asset infrastructure provider Zumo, said the changes showed that the regulator had listened to industry concerns.

“Regulation must be proportionate if the UK is to compete on the international stage,” he said.

However, Jones added that firms would still need to meet demanding standards across backing assets, safeguarding, redemption, operational resilience, financial crime controls, liquidity, reconciliation and third-party dependencies.

Systemic issuers face two regulators

Alongside the wider FCA package, the Bank and FCA have set out how stablecoin issuers will move from FCA-only supervision into joint regulation if HM Treasury recognises them as systemic.

All UK issuers of qualifying stablecoins will initially be regulated by the FCA. Once an issuer becomes systemic, the Bank will join the FCA rather than replacing it.

The FCA will lead on areas including consumer protection, conduct, financial crime, market abuse, complaints and senior management requirements.

The Bank will lead on backing assets, capital and reserves, safeguarding, failure arrangements and the temporary issuance guardrail.

Responsibilities will overlap across operational resilience, governance, outsourcing, risk controls, reporting and the issuance and redemption process. The regulators have said they will coordinate their engagement and try to minimise duplicated information requests.

Anthony Yeung, chief commercial officer at at digital asset protection and recovery firm CoinCover, said the approach provided a better balance between supporting stablecoin growth and managing risks to financial stability.

“As stablecoins become more widely used for payments, it is right that regulators consider how growth could affect bank deposits and credit provision, while ensuring innovation is not unnecessarily constrained,” he said.

The joint paper follows the Bank’s revised systemic stablecoin proposals, which replaced individual holding limits with a temporary £40 billion issuance guardrail and relaxed some of the backing-asset requirements proposed in 2025.

Transition could take up to three years

An FCA-regulated issuer would become subject to both regulators’ rules from the day HM Treasury formally recognises it as systemic.

The Bank has acknowledged that firms may not be able to meet every systemic requirement immediately and expects a typical transition to take between 12 and 36 months.

Issuers could receive up to 12 months to obtain a Bank of England settlement account, secure direct access to a payment system and adjust their backing assets. A further period of up to 24 months may be available for capital, reserve and safeguarding requirements.

The framework also covers businesses considered “systemic at launch”, where a proposed stablecoin is expected to become systemically important even though it has not yet begun operating at scale. Those firms could pass through mobilisation and scaling stages before entering full supervision.

David Reilly, payments and retail banking director at financial data management and reconciliation platform AutoRek, said the division of responsibilities appeared sensible on paper, but overlapping supervision would create practical demands.

“The Bank [is] leading on backing assets and safeguarding, the FCA on consumer protection and conduct, with reporting, record-keeping and the issuance-to-redemption lifecycle sitting in the overlap,” he said.

“For firms, that overlap means the same operational data now has to satisfy two sets of supervisory expectations.”

Reilly said reconciliation would be a central challenge because stablecoin activity involves state changes across different ledgers rather than straightforward transfers between two accounts.

Authorisation work begins

Crypto firms can access FCA pre-application meetings from July before submitting formal applications from September.

Hannah Meakin, partner at law firm Norton Rose Fulbright, said businesses would now need to prepare for authorisation and ensure their systems, controls and organisational arrangements were ready well before implementation.

Matthijs Boon, chief partnership officer at  global payments and embedded finance platform Equals, said firms that had already embedded strong compliance processes should be better placed to receive authorisation.

“The crypto firms that will succeed in the UK market are those that treat compliance as a strategic capability, enabling them to scale confidently as regulatory expectations evolve,” he said.

Boon also welcomed the reduction in barriers to sterling-denominated stablecoins but said businesses would need payments partners capable of handling the operational complexity of adding them to existing treasury, compliance and payment workflows.

The final shape of joint stablecoin supervision is not completely settled. The Bank plans to finalise its systemic stablecoin code of practice by the end of 2026, after which the FCA will consult on which of its rules should be switched off to prevent conflicts or duplication.

The consultation on transition into joint supervision closes on 30 September 2026. The FCA also plans further work on decentralised finance, distributed ledger technology, financial crime requirements and the treatment of failed crypto firms.

The comparison comes as the European Union’s MiCA transition period ends on 1 July 2026. Cryptoasset service providers still operating without MiCA authorisation must stop taking on new EU clients and cease marketing, while limiting their remaining activity to the orderly transfer or closure of customer assets and positions.

McCormick said the comparison with the European Union’s Markets in Crypto-Assets Regulation would depend on how effectively the UK applies its framework.

“The UK will not win by being less rigorous than MiCA; it will win only if it can be more proportionate, more predictable and faster to supervise,” he said.

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