Crypto Regulation in the UK
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1. Current state of UK crypto-regulation
At the moment, regulation of cryptoassets and cryptoasset services in the UK is undergoing a transformative change. Over 2025 and 2026, the UK government and its financial services regulator, the Financial Conduct Authority (“FCA”), have been consulting on new rules governing the regulatory treatment of cryptoassets and cryptoasset activities, with the final rules having been published in June 2026. Until these proposed rules come into effect (which is expected to be in October 2027), existing rules will continue to apply to cryptoasset service providers operating in or selling to customers in the UK (under the Money Laundering Regulations 2017 and the UK’s financial promotions regime).
In this guide, we provide a summary of the proposed new rules. For a breakdown of the existing regime that currently applies to cryptoassets and cryptoasset service providers, until 25 October 2027, please refer to our UK CMS Expert Guide to Crypto Regulation in the United Kingdom.
2. Summary of incoming regimes
At a high level, the FCA’s general approach to regulating cryptoassets and cryptoasset services in the new regime has been to review existing “traditional finance” regulatory regimes, and adapt these existing rules as far as possible to apply to cryptoassets and cryptoasset services. The following is a summary of all the FCA’s rules, which have been published by way of policy statements (“PSs”). The PSs follow previous consultation papers (“CPs”), which have built on previous discussion papers (“DPs”), published as part of the FCA’s Crypto Roadmap during 2025 and 2026. At the time of writing, the FCA is yet to publish its final perimeter guidance and is seeking feedback in relation to non-Handbook guidance for prudential requirements for cryptoasset firms (GC26/4 and GC26/5), the outcomes of which are expected later in 2026. The FCA has also signalled that it intends to consult on certain specific issues raised in feedback to the consultation papers in due course.
Following this, the FCA’s authorisation gateway window will open from 30 September 2026 to 28 February 2027. Firms must submit their application within this window to secure FSMA authorisation ahead of the 25 October 2027 “go live” date for the new regime.
| Documents | Summary of proposed rules (and status) |
Market abuse regime for cryptoassets (“MARC”) and admissions & disclosures (“A&D”) rules Documents: PS26/9 (June 2026), CP 25/41 (16 December 2025), updated from DP 24/4 (16 December 2024). | CP 25/41 on Regulating Cryptoassets: Admissions & Disclosures and Market Abuse Regime for Cryptoassets (see our full analysis here). MARC will apply to qualifying cryptoassets admitted to, or seeking admission on, a cryptoasset trading platform (“CATP”), regardless of geographic location. The regime covers the use and disclosure of inside information and market manipulation and applies to issuers, offerors, and CATPs. While the cryptoasset tailored MARC proposals are broadly based on the UK Market Abuse Regime, MARC is not intended to replicate UK MAR due to structural differences in cryptoasset markets. Key proposals include:
The proposed requirement under the MARC regime to disclose inside information will work in conjunction with the A&D rules’ admission document requirements to give investors sufficient information regarding a cryptoasset at the point of admission. |
A&D (see our full analysis here) The A&D regime will apply CATPs that allow retail participation, and to public offers to retail investors made under the new cryptoasset regulations proposed by the FCA (see our summary here). The regime will apply to the following designated activities:
The majority of A&D rules will apply directly to the operators of CATPs which are authorised in the UK. There will also be a separate regime for UK-issued stablecoins. The proposed regime will implement the below requirements:
The CP process for these proposals was completed in February 2026. The FCA will consider feedback and publish their final rules in 2026. |
| Documents | Summary of proposed rules (and status) |
The regulated cryptoasset activities regime Documents: PS26/11 (June 2026), CP25/40 (16 December 2025), updated from DP25/1 (2 May 2025) | Policy Statement PS26/11 Crypto Regime: Regulated Cryptoasset Activities (June 2026). This PS follows CP25/14, CP25/40 and CP26/4. The PS finalises the regulated cryptoasset activities within scope of the new regime including operating a qualifying cryptoasset trading platform (QCATP), dealing, arranging, lending and borrowing (although note this is not a separate regulated activity), staking, safeguarding and the FCA’s current approach to decentralised finance (DeFi), largely maintaining the overall framework, while making targeted amendments and providing further guidance. In relation to CATPs:
In relation to Intermediaries
Cryptoasset lending and borrowing (“L&B”) activities L&B activities will not be new regulated activities, but may fall within the regulated dealing or arranging activities.
Staking proposals
Decentralised Finance ("DeFi") DeFi activities are not covered by the incoming UK cryptoasset regulatory regime where they are truly decentralised. The FCA will apply its rules and guidance to firms engaging in DeFi where there is a clear controlling person carrying on a regulated cryptoasset activity, assessed on a case-by-case basis. Separate DeFi guidance, covering indicators of decentralisation and how to mitigate operational resilience and financial crime risks, is expected to follow later in 2026. |
| Document | Summary of proposed rules (and status) |
Stablecoin issuance and cryptoasset custody Documents: PS26/10, PS26/11, CP25/14 (28 May 2025). PS26/10 finalises the FCA’s rules on stablecoin issuance, following consultation under CP25/14. Related safeguarding and other issues consulted on in CP25/25 and CP26/4 have been finalised separately in PS26/11 (see below). | Policy Statement PS26/10 Crypto Regime: Stablecoin Issuance (June 2026) and Policy Statement PS26/11 Crypto Regime: Regulated Cryptoasset Activities (June 2026). PS26/10 finalises the rules on the issuance of UK-issued qualifying stablecoins, covering backing assets, segregation and the statutory trust, third-party safeguarding of backing assets, record-keeping and reconciliations, redemption, the use of third parties and disclosures, largely maintaining the framework consulted on in CP25/14 while making targeted refinements to improve clarity, operability and proportionality. PS26/11 finalises the rules on cryptoasset safeguarding, including appointment of third parties in cryptoasset custody, private key management and security, reconciliations, addressing shortfalls and excesses, and record-keeping. The Cryptoassets Regulations define a “qualifying stablecoin” as a “qualifying cryptoasset” referencing one or more fiat currencies that seeks or purports to maintain a stable value (by the issuer holding fiat currency or fiat currency and other assets). On top of needing to seek authorisation and comply with the conduct of business standards applicable to authorised financial services firms, qualifying stablecoin issuers will be required to:
Joint Regulation of Systemic Stablecoins - Alongside PS26/10, the FCA and the Bank of England have published their approach to the joint regulation of systemic stablecoin issuers, covering how each authority’s rules will apply as firms move from being solo-regulated by the FCA to joint regulation, including a consultation on the application of the Bank’s draft rules during the transitional period and the proportionate requirements that would apply to firms recognised as systemic at launch under the ‘step-up’ regime. |
PS26/11 finalises the rules on cryptoasset safeguarding, including appointment of third parties in cryptoasset custody, private key management and security, reconciliations, addressing shortfalls and excesses, and record-keeping. It includes the rules for a new CASS 17. This introduces new rules that apply to cryptoasset custodians in relation to qualifying cryptoassets (“QCAs”). CASS 17 will apply to all firms that control cryptoassets through any means that would enable them to bring about a transfer of the benefit of the cryptoassets to another person, whether they themselves hold them or not. CASS 17 will not apply to qualifying cryptoassets that are transferred to the firm under a cryptoasset lending arrangement. CASS 17 does not extend to the custody of specified investment cryptoassets (including relevant specified investment cryptoassets, “RSICs”); firms safeguarding RSICs will instead need to apply CASS 6 requirements (obtained via a variation of permission, including Article 9N), pending further FCA engagement on tailored RSIC safeguarding rules. CASS 6 will also apply to small AIFMs’ safeguarding of RSICs where they carry on Article 9N activity, despite the exclusion in Article 72AA of the RAO, just as it does currently in relation to their ‘excluded custody activities’. The FCA and PRA are currently consulting on how CASS rules should apply to RSIC custody in the longer term (Call for Input: The future of tokenisation - A joint vision from the authorities for UK wholesale financial markets). Self-custody models are not subject to CASS rules. Under CASS 17, qualifying cryptoasset custodians will be required to:
In comparison, CASS 8 applies to mandate arrangements where a firm has authority to instruct or direct a client’s assets without itself having control. CASS 17 applies to any cryptoasset firm that has control of cryptoassets within the meaning of Article 9N, subject to limited exceptions. The FCA has provided the diagram shown below at “Diagram 1” to illustrate how CASS 17 applies in different scenarios to firms with different levels of control. UK QCATPs are permitted to hold up to 2% of each client’s cryptoassets, calculated per client and per cryptoasset class, outside the trust in a global settlement wallet for settlement purposes (the settlement float limit). This is subject to the client’s informed consent (which may be withdrawn). Firms may operate separate trusts through separate virtual addresses or combine client cryptoassets at different virtual addresses into the same trust, but firms cannot allocate the same single virtual address to different trusts, as this does not meet the FCA’s co-mingling requirement. Third parties must also meet the same requirements if appointed for safeguarding purposes. Firms appointing third parties for safeguarding will also need to consider the jurisdiction as part of their due diligence. Firms are permitted to use DLT as an external source of information to confirm the per-trust/class cryptoasset resource (i.e. the amount and class of cryptoasset being safeguarded on trust for clients) where a third party is not appointed for safeguarding, but the same source of information cannot be used to calculate the per-trust/client/class cryptoasset requirement. Firms must investigate discrepancies, remove all excesses, top up any shortfalls and notify the FCA in writing if a shortfall has not been topped up by the next reconciliation. Firms must immediately notify clients affected by shortfalls. These new rules largely mirror the existing custody rules in CASS 6 (which relate to “traditional” safe custody assets). A firm safeguarding client cryptoassets would need client agreement in order to return an equivalent asset to their client via a different blockchain than the one on which the safeguarding arrangement began. |
| Documents | Summary of proposed rules (and status) |
| Documents: PS26/12 (June 2026), CP25/42 (16 December 2025); CP25/15 (28 May 2025) | Policy Statement PS26/12 Crypto Regime: A Prudential Regime for Cryptoasset Firms (June 2026). This PS follows CP25/15 and CP25/42. PS26/12 finalises the prudential framework for regulated cryptoasset firms, covering capital, liquidity, risk management and public disclosure requirements. The FCA has largely maintained the proposed framework while making targeted recalibrations and clarifications to improve proportionality and usability. The framework introduces an integrated prudential sourcebook that brings together core prudential requirements ("COREPRU"), along with a sourcebook setting out sector specific requirements for firms doing regulated cryptoasset activities ("CRYPTOPRU"). Both COREPRU and CRYPTOPRU will apply to CRYPTOPRU firms. The COREPRU includes rules on: overall financial adequacy; definition of own funds; own funds requirement (overall calculation); fixed overhead requirement; concentration risk monitoring; and basic liquid asset requirement. The CRYPTOPRU includes rules on: permanent minimum requirement; K-factor requirement (including operational and exposure-based K-factors); issuer liquid asset requirement; overall risk assessment; and sectoral prudential disclosure requirements. The final rules include the following key elements:
Disclosure and reporting - The final rules make two targeted changes to the disclosure framework: (i) the requirement to publicly disclose the own funds threshold requirement (OFTR) and liquid asset threshold requirement (LATR) has been removed; and (ii) firms whose own funds requirement is determined by the PMR (rather than the FOR or K-factor requirement) are exempt from the detailed CRYPTOPRU 8 disclosure requirements. Where a cryptoasset firm is subject to other prudential regimes (e.g. MIFIDPRU and COREPRU/CRYPTOPRU), disclosure requirements must be met across both regimes but firms may publish a single, consolidated set of prudential disclosures |
| Document | Summary of proposed rules (and status) |
Application of FCA Handbook for Regulated Cryptoasset Activities II Documents: PS26/13 (June 2026), PS26/11, CP26/4, CP25/25 | Policy Statement PS26/13 Crypto Regime: Application of FCA Handbook for Regulated Cryptoasset Activities (June 2026). This PS follows CP25/25 and CP26/4. PS26/13 finalises the rules and guidance on how key cross-cutting FCA Handbook obligations will apply to regulated cryptoasset activities, including standards on conduct, governance, resilience, redress, and reporting. The FCA has largely maintained the proposed framework while making targeted refinements to improve clarity and proportionality. PS26/11 finalises the rules in relation to cryptoasset trading platforms, lending and borrowing and safeguarding, as consulted on in CP26/4.
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Our industry work
Our FS Reg team is proud to support CryptoUK, having helped shape its responses to every FCA Discussion Paper and Consultation Paper on the new cryptoasset regime. Sam Robinson and Yasmin Johal also co-chair CryptoUK’ s regulatory working group, keeping us right at the heart of policy development in this fast-evolving space.
We are equally proud to support the Digital Pound Foundation, having assisted with its submissions in response to a range of FCA Discussion Papers and Consultation Papers on the new cryptoasset regime.
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