What "systemic" actually adds, not replaces
Once the UK's new cryptoasset regime fully commences (25 October 2027, under the Regulations already creating this framework), a stablecoin issuer meeting the UK-establishment conditions, offering or arranging its stablecoin from a UK establishment, with the stablecoin created by or on behalf of the issuer or its group, and the issuer itself carrying on both redemption and stabilisation-asset-holding activities from a UK establishment, needs Part 4A permission from the FCA under the Financial Services and Markets Act 2000, the same authorisation gateway that covers deposit-taking and investment business generally, applied here to the specific regulated activities the regime creates (issuance, safeguarding, dealing, arranging). This is the non-systemic baseline: the FCA carries the prudential and conduct rulebook, covering backing assets, redemption, safeguarding and capital, for every UK-issued qualifying stablecoin. It isn't the only regulator with any remit here even at this baseline, though: the Payment Systems Regulator retains its own separate, narrower competition-and-access remit over payment systems that transfer digital settlement assets, including stablecoins, independent of whether an issuer is later recognised as systemic.
Systemic recognition doesn't replace that FCA layer, it adds a second one. HM Treasury, not the FCA and not the Bank of England, decides whether a stablecoin arrangement is systemic, using its powers under the Banking Act 2009. HMT can recognise an operator of a systemic payment system using a digital settlement asset, a systemic digital settlement asset service provider, or a firm providing essential services to either, wherever it's satisfied that deficiencies in the arrangement's design, or disruption to its operation, would likely threaten UK financial stability or confidence, or seriously harm UK business interests. HMT must consult the Bank, the FCA and the Payment Systems Regulator, and must notify the firm and consider its representations, before making a recognition order. A separate "systemic at launch" path exists for a firm not yet at systemic scale but likely to reach it.
Crucially, recognition and authorisation stay legally independent. The Bank and FCA's own joint approach document states this directly: HMT's recognition "does not fetter the FCA's statutory obligation to consider the application for Part 4A permissions, including rejecting the application." A firm can be recognised as systemic by HMT and still be refused authorisation by the FCA; the two decisions don't automatically follow from each other.
Once recognised, the Bank of England joins the FCA as a second regulator, not instead of it. What follows is a genuine three-way split, not two regulators doing the same job twice: some rules stay FCA-lead, some become Bank-lead, and a meaningful middle band is jointly applicable. The rest of this guide maps that split field by field, then the £40bn guardrail, the multi-issuance risk this creates when more than one issuer shares a token, the depeg mechanics both regimes are designed to manage, and the failure regime that's still, genuinely, being drafted.
This guide doesn't reproduce the detailed activity mapping, the statutory qualifying-stablecoin definition, or the due diligence framework that the series' FCA perimeter guide (Guide 1) covers in full. Read that guide for the complete non-systemic authorisation analysis; nothing here requires it as a prerequisite.
FCA-only versus jointly-regulated systemic issuer
Ten fields, compared directly. Figures reflect the Bank's final June 2026 policy position, not the earlier consultation proposals, where the two differ.
| Field | FCA-only (non-systemic) | Jointly regulated (systemic) |
|---|---|---|
| Backing assets | Short-term deposits and short-term government debt; on-demand deposit requirement (ODDR) of 5% of the pool, applies to all issuers. | 30% unremunerated Bank of England deposits, up to 70% short-term UK government debt (6-month residual maturity); no other asset classes permitted. "Systemic at launch" firms get a step-up allowance, up to 95% government debt while scaling, reduced to 60% at appropriate scale. |
| Redemption | T+1, clock starts once the issuer has received the stablecoin in its own wallet and completed AML/KYC. | Proposed policy, per draft Code of Practice: as soon as practicable, and in any event within 24 hours of a "full redemption request" (request received, AML/KYC complete, coins received). No suspension for any reason, in normal or stress conditions alike. Processing is rolling, first come first served. |
| Safeguarding | Third-party custodians capped at 20% intragroup holding of the backing pool. | Custodians must be a separate legal entity from the issuer, but no percentage cap on intragroup custody; custodian must additionally be UK-authorised for custody activities and hold the assets in the UK. |
| Capital | Governed by the FCA's general prudential rules for the relevant permission. | The higher of six months' operating expenses or the cost of executing the recovery and wind-down plan; must be free of intangible assets, described by the Bank as analogous to CET1 capital. Must notify the Bank if capital falls below 110% of the minimum. |
| Reserve assets | No equivalent statutory-trust reserve structure identified in the material verified for this guide. | Two distinct statutory trusts: the Financial Risk Reserve (interest-rate, monetisation and counterparty risk on the backing pool) and the Wind-Down Reserve (redemption/transfer and insolvency-practitioner costs), held separately from capital and from each other. |
| UK custody restrictions | Custodian independence (20% intragroup cap) is the operative constraint; no UK-location requirement identified in the material verified for this guide. | Custodian must be authorised in the UK for custody activities and must hold the assets in the UK, on top of the separate-legal-entity requirement above. |
| Bank access | No direct central bank payment-system access identified in the material verified for this guide. | Expected to access payment systems directly, settling in central bank money via a central bank deposit account, rather than through a sponsoring participant. A new Central Bank Liquidity Facility is planned (not yet operative) as a backstop, not a front-stop, for solvent issuers facing exceptional monetisation constraints. |
| Failure arrangements | Falls under the FCA's own forward-looking resolution consultation (not yet run). | Governed by the Bank's draft Code of Practice, recovery and wind-down plan requirements, still consultation-stage, not settled law. |
| Regulatory reporting | FCA rules only. | Sits in the jointly-applicable band: both FCA rules and the Bank's Code of Practice apply, alongside specific Bank notification triggers (110% capital threshold, reconciliation failures, capital changes). |
| Temporary issuance guardrail | Not applicable, no equivalent cap for non-systemic issuers. | £40bn per systemic stablecoin product, explicitly not a designation threshold, removed on a condition basis once real-world impact and credit-provision risk are assessed as mitigated, not on a fixed date. |
The three-way responsibility split
This isn't FCA-versus-Bank. The Bank and FCA's own joint approach document sets out three distinct bands, and collapsing them into a binary loses the actual structure:
- FCA-lead: Consumer duty, conduct of business, admissions and disclosures, the Market Abuse Regime for Cryptoassets, SM&CR, financial crime, ESG, complaints and FOS access, conflicts of interest, whistleblowing, fitness and propriety, the Code of Conduct, CPD, training and competence, general provisions, plus MLR 2017 supervision for both systemic and non-systemic issuers alike.
- Overlapping (both apply): Operational resilience, governance, internal and external audit, risk control, outsourcing, record keeping, reporting, issuance/legal claim/redemption, remuneration.
- Bank-lead: Backing assets, capital and reserve requirements, safeguarding, failure arrangements, the temporary issuance guardrail.
This allocation is itself provisional. The FCA will decide which of its own rules to disapply for systemic issuers, but can't formally consult on how the split is operationalised until the Bank's Code of Practice for systemic issuers is finalised.
One token, multiple issuers, multiple problems
A multi-issuance scheme is exactly what it sounds like: an entity in jurisdiction A jointly issues a stablecoin with an entity in jurisdiction B, and the result is fungible and indistinguishable across both. Nothing about holding the token tells a coinholder, or an investigator, which entity's reserve pool actually backs a given unit.
FATF's own March 2026 Targeted Report on Stablecoins and Unhosted Wallets frames this as a genuine financial-crime risk, not just an operational curiosity: multi-issuance arrangements "may hinder the activity of LEAs, especially tracing, freezing or seizing of stablecoins," precisely because two or more issuers based in different jurisdictions are involved. A second, distinct problem sits underneath the tracing one: because compliance responsibilities may differ between issuers, it can be genuinely unclear which entity holds which AML/CFT obligation for a given coin, and geolocation complications from VPN use make it harder still to work out which entity actually holds relevant customer information.
The Bank of England's own position on multi-issuance is unambiguous and worth stating precisely: multi-issuance models are not considered suitable for systemic UK use. The Bank prefers single-issuance backed by a single reserve for anything recognised as systemic. That preference is itself a risk signal for investigators, a multi-issuance stablecoin reaching systemic scale in the UK would be operating against the Bank's own stated preference, not within a design it has endorsed.
Two depeg risks, two directions, not one concept
Practitioners default to thinking of "depeg risk" as one thing: confidence collapses, price falls below par. The systemic regime actually creates two distinct depeg risks, running in opposite directions, and the Bank's own guardrail is directly responsible for one of them.
Downward: the confidence-shock spiral
This chain is grounded in the Bank's own financial-stability reasoning, not invented for this guide, but it isn't a verbatim quotation either: the Bank's own Box A analysis reasons in terms of rapid, unexpected redemption requests forcing asset sales at a discount, undermining 1:1 backing and creating further government-debt-market stress, compounded by fire-sale risk if multiple issuers must liquidate at once. The Bank's text doesn't itself use the phrase "confidence shock" as a named trigger, and doesn't explicitly describe a "secondary market discount" on the stablecoin's own price; those are this guide's framing of the mechanism the Bank describes, not the Bank's own wording. Three sources feed this analysis, kept separately attributed rather than blended: the Bank's own Box A reasoning above; an MIT 2026 paper, "The Hidden Plumbing of Stablecoins: Financial and Technological Risks in the GENIUS Act Era," cited by the Bank for a general solvency-versus-liquidity point and explicitly US-focused, not the Bank's own finding; and a BIS reference (Application of the Principles for Financial Market Infrastructures to stablecoin arrangements) used elsewhere in the same Policy Statement specifically for the redemption-timing standard, not for this stress chain.
Upward: the guardrail's own risk
The £40bn issuance guardrail exists to contain systemic scale. It also, by the Bank's own admission, creates a risk in the opposite direction. Use this exactly, the Bank's own words, not a paraphrase:
"The issuance guardrail does introduce a new risk, which is the possibility of 'de-pegging' if the demand for a stablecoin outweighs supply. De-pegging risk could materialise if users shift into stablecoins at scale, resulting in demand for the systemic stablecoins exceeding supply, pushing secondary market prices above par value. We think this risk is manageable. While such behaviour is hard to predict, a sustained, large-scale flow would likely be needed into a systemic stablecoin to push its price above par."
This is the opposite direction from the confidence-shock chain above: demand exceeding the guardrail-constrained supply pushes the secondary market price above par, not below it. The Bank frames this as a new risk it judges manageable, not something requiring a sustained, hard-to-predict, large-scale shift to actually materialise, not a routine or easily-triggered event. Treat these as two distinct depeg concepts with two distinct causes, not one undifferentiated "depeg risk." A practitioner who sees a systemic stablecoin trading above par should think guardrail-constrained demand first, not assume the pricing signal has to mean the same thing a below-par discount would.
A systemic sterling stablecoin, near its £40bn issuance guardrail, is trading at a small but sustained premium to par on secondary markets. A junior analyst flags it as an early depeg warning and recommends treating it the same as a below-par discount event, escalating to the firm's backing-quality contingency plan.
What happens when the issuer itself fails
This is a distinct question from law enforcement freezing a specific wallet or asset, that's an intervention against suspicious activity within a functioning issuer. Failure and resolution asks what happens when the issuer itself can't continue, insolvency, a capital or liquidity breach, an operational collapse, and it's the area most clearly still under construction.
Recovery and wind-down, per the Bank's draft Code of Practice
The Bank's draft Code of Practice, Appendix 4 to the June 2026 Policy Statement, sets out genuine rule text, not a policy summary, though it remains draft, consultation-stage material. A recovery plan must identify an early-warning trigger, set above the actual minimum capital or reserve requirement, that would indicate a credible risk of breach; potential recovery actions that are "credible and justifiable" given time to implement, estimated losses, and effectiveness, explicitly including insurance, indemnity and loss-distribution arrangements as examples; and the cost of implementing them. A wind-down plan must choose, per stress scenario, between terminating the business (completing redemption for all holders) or selling part or all of it to a purchaser, and must cost three components: winding down general operations, completing redemption or transferring the business (whichever is higher, not both added together), and insolvency costs.
Where the wind-down reserve is actually drawn on, priority order matters and is fixed by the draft rules: insolvency practitioner and special administrator costs come first, then redemption-completion or business-transfer costs, then holder shortfall claims against the backing-assets trust, and the issuer itself last, only once everything above it is satisfied.
Notification thresholds sit ahead of actual breach, not at it: an issuer must notify the Bank if capital falls below 110% of the general business risk requirement, a materially earlier signal than a live compliance failure.
Redemption suspension: two different questions, easy to conflate
The Bank's proposed policy, stated in the Policy Statement and instantiated through the still-draft Code of Practice, is that suspension of redemption is not permitted for any reason, an expectation explicitly meant to hold "in normal and stress times," including where an issuer outsources redemption to a third party, and applying "at all times, including during periods where issuers are experiencing operational disruption." This isn't a routine-operations-only rule; the Bank's own framing spans stress conditions too.
What remains genuinely open is a narrower question: what happens to redemption once a firm has actually entered formal wind-down or insolvency, as distinct from merely operating under stress. The Code of Practice's own wind-down plan requirements treat "completing redemption for all holders" as one designed wind-down strategy, a different mechanism from day-to-day on-demand redemption continuing unchanged, and don't spell out how that interacts with the no-suspension expectation once a firm is formally failing. Separately, and on a different regulator's own timeline, the FCA has said it will consult later this year on its own approach to cryptoasset firm failure, quote it exactly: "We will consult later this year on our proposed approach to managing cryptoasset firm failure. This will include distribution rules that would apply where a stablecoin issuer or a cryptoasset custodian has failed. As part of this, we may consider the rules on suspension of redemption of stablecoins to make sure they achieve their aims, both in firm failure and the run-up to it, and this may result in some changes." That FCA consultation, not yet run, could affect suspension policy for the issuers and custodians its own regime covers; nothing in the material verified for this guide indicates it will determine or reshape the Bank's separately-stated systemic-issuer position, and the two processes shouldn't be read as one.
The draft Code of Practice's own commencement date is unfixed in the text itself. Its legal basis is section 189 of the Banking Act 2009; non-compliance is a "compliance failure" under section 196, with possible sanctions under sections 198-200 (financial penalty, management disqualification, in specified circumstances a closure order) and publication under section 197. The consultation on this draft closes 22 September 2026. Do not present any of the failure-regime content above as finalised.
A stablecoin your firm holds is jointly issued by two entities in different jurisdictions and trades as a single fungible token. News breaks that one of the two issuers has entered insolvency proceedings. A colleague argues the token's overall backing is unaffected, since it's "one stablecoin" and the healthy co-issuer can absorb the shortfall.
Four patterns, four cards
FAQ
If a stablecoin is recognised as systemic, does it stop being regulated by the FCA?
Is the £40bn guardrail the threshold at which HMT recognises an issuer as systemic?
Can a systemic stablecoin issuer suspend redemptions during a crisis?
Does the £40bn guardrail get removed on a fixed date?
At a glance
Four patterns, the risk that makes each one look routine, the signal that gives it away, and the response that fits.
Systemic status is an addition, not a replacement.
Every field in this guide, backing assets, redemption, safeguarding, capital, failure arrangements, sits on top of the FCA baseline, not instead of it. The practitioner skill is knowing which regulator's rule actually governs a given question, reading the guardrail's own depeg risk correctly, and treating a fragmented multi-issuer token as the multiple legal positions it actually is. FinCrimeRadar's screening tool checks sanctions, PEP, and adverse media exposure for the entities behind a stablecoin arrangement, free, no signup required.