ESMA Opinion: Non-MiCA Stablecoins Must Be Off CASPs' Books by January 2027
ESMA published an opinion on 8 October 2026 that leaves EU-licensed crypto-asset service providers with a blunt instruction: stop providing services on stablecoins that do not comply with the Markets in Crypto-Assets Regulation (MiCAR), and settle any remaining client positions no later than 8 January 2027. For compliance officers, CFOs, and the accounting firms that serve them, that three-month window is already running.
Background: From January 2025 Guidance to the October 2026 Opinion
ESMA first addressed non-MiCAR-compliant stablecoins in January 2025, when it set out its initial expectations on how asset-referenced tokens (ARTs) and e-money tokens (EMTs) that fall outside the MiCAR authorisation framework should be treated by CASPs. That early guidance established the principle but left room for interpretation on timing and the precise scope of permissible activity.
The October 2026 opinion removes that ambiguity. It confirms and sharpens the January 2025 position, specifying exactly which activities can continue and for how long.
What changed between 2025 and 2026
The core shift is the introduction of a concrete deadline and an explicit prohibition on new or increased client exposure. Where the 2025 guidance framed ESMA's expectations in principle, the 2026 opinion translates those principles into operational requirements: a fixed cut-off date, a mandate for technical and contractual controls, and a direct instruction to national competent authorities (NCAs) to enforce compliance.
What the Opinion Actually Requires
The opinion establishes a clear hierarchy of obligations for any CASP holding a MiCAR authorisation.
The general prohibition
CASPs must not, in principle, provide any crypto-asset services relating to ARTs or EMTs that are not MiCAR-compliant. This covers the full range of CASP activities, whether that is custody, exchange, transfer, or advisory services connected to those tokens. The word "principle" does not create a broad carve-out; ESMA uses it to frame the narrow exception that follows, not to dilute the rule.
The narrow exception for settlement
The only activity that may continue is that which is strictly necessary for the orderly settlement of positions clients already hold. CASPs cannot use this exception to facilitate new purchases or to allow existing positions to grow. The permission is directional: it permits unwinding, not accumulating.
The January 2027 hard stop
Even the settlement exception has an end date. All existing positions must be resolved as soon as practicable, and in any event no later than three months from the opinion's publication date of 8 October 2026, which places the hard deadline at 8 January 2027. After that date, no continuation of services, even for settlement purposes, is envisaged.
Controls That NCAs Will Expect to See
ESMA does not leave implementation to individual CASPs' discretion. The opinion places national supervisory authorities under an obligation to verify that firms have put three categories of controls in place.
Technical controls
CASPs should configure their systems so that clients cannot acquire positions in non-compliant ARTs or EMTs through the firm's platform. This means blocking buy orders, disabling deposit pathways for those tokens, and ensuring no automated strategy or recurring order can add to a client's exposure.
Contractual controls
Client agreements must reflect the prohibition. Where existing terms permit trading or holding of non-compliant stablecoins, those terms need to be updated or supplemented with formal notices that no new positions will be accepted and that existing ones are subject to a settlement timeline.
Organisational controls
Internally, CASPs need documented procedures covering how they will identify affected client positions, communicate with those clients, manage the settlement process, and evidence compliance to their NCA. Regulators will want to see audit trails, not just policy documents.
Accounting and Reporting Implications for Firms
The opinion creates a specific accounting challenge that CFOs and their advisers need to address now rather than in December.
Balance sheet identification and classification
The immediate task is a complete inventory of all ART and EMT positions, whether held on behalf of clients (custodial) or on the firm's own account (proprietary). For client assets held in custody, the key question is whether those positions appear on or off the CASP's own balance sheet under the applicable accounting framework. Non-compliant tokens held in client accounts may still create contingent liabilities or disclosure obligations if the firm is the registered holder.
Under IFRS 9, the measurement category of a token holding will influence how any disposal or settlement is recognised in profit or loss. Firms should confirm the classification of each affected token before the deadline so that settlement transactions are recorded correctly and consistently. Robust crypto bookkeeping software that can tag assets by regulatory status will make this significantly easier to manage and audit.
Impairment and fair value considerations
A regulatory-driven wind-down instruction is a potential impairment indicator under IAS 36 for any proprietary holdings. Even for tokens measured at fair value through profit or loss under IFRS 9, the restricted liquidity that may arise as other CASPs simultaneously comply with the same instruction could affect observable market prices. Firms should document their fair value methodology and the inputs used at each reporting date during the wind-down period.
Revenue recognition and fee income
Any service fees that were being earned on non-compliant stablecoin activity will cease. Firms should assess whether any deferred revenue or contract liabilities related to those services need to be recognised earlier as a result of the prohibition, particularly where clients have prepaid for custody or transaction services.
Disclosure requirements
For firms with a December 2026 year-end, the opinion will be a post-balance-sheet-date event that requires consideration under IAS 10. If the wind-down has a material effect on the business, it should be disclosed even if the hard deadline falls after the reporting date. Firms with a September or October 2026 year-end may find the opinion falls within their reporting period and requires treatment as an adjusting or non-adjusting event depending on the specific circumstances.
Good digital asset accounting software should be generating asset-class-level reports that allow compliance and finance teams to work from the same data set rather than reconciling separate spreadsheets under deadline pressure.
What Accounting Firms Advising CASPs Should Do Now
The three-month window sounds generous; in practice, client communication cycles, system changes, and NCA notification requirements will consume much of it. Advisers should be pushing clients on the following actions without delay.
Immediate steps
First, identify every ART and EMT on the platform and determine which are MiCAR-authorised and which are not. Second, issue client notifications explaining that positions in non-compliant tokens must be settled and that no new positions will be accepted. Third, confirm with the platform's technical team that the necessary system blocks are in place or have a firm delivery date. Fourth, update internal compliance procedures and prepare the documentation that the NCA will expect to review.
Engagement with national competent authorities
The opinion tasks NCAs directly with supervision. Firms that are proactive in notifying their NCA of their wind-down plan and timeline are likely to be in a stronger position than those that wait to be asked. Some NCAs may issue their own implementing guidance in the coming weeks; advisers should monitor for local supervisory communications that sit alongside the ESMA opinion.
This regulatory development sits alongside other active MiCA enforcement threads. ESMA has continued to update its MiCA register, as seen when it added BingX and YouHodler to the MiCA register in October 2026, and the broader debate about MiCA's scope continues to evolve, with France's proposals to revise MiCA raising questions about the regulation's longer-term architecture. The non-compliant stablecoin opinion, however, is not a future proposal; it is in force now.
The Broader Regulatory Signal
The opinion sends a message that goes beyond the specific stablecoin question. ESMA is signalling that MiCAR authorisation is not a permission to continue legacy activities on non-compliant tokens indefinitely. The January 2025 guidance was the warning; the October 2026 opinion is the enforcement posture. NCAs now have explicit ESMA backing to take supervisory action against CASPs that do not comply.
For firms operating across multiple EU jurisdictions, this also means that the standard is European, not member-state-specific. A CASP cannot rely on a more permissive interpretation from its home NCA; the ESMA opinion sets a ceiling that no national regulator can raise.
The implication for firms building or selecting crypto accounting software is straightforward: any system used to manage CASP-level reporting needs to be able to identify asset classification by regulatory status, support audit-trail generation for supervisory review, and produce the position-level reporting that a settlement wind-down requires. General-purpose accounting tools that treat all crypto assets as a single category will not be adequate for this task.
Frequently Asked Questions
Which stablecoins does this opinion cover?
The opinion applies to asset-referenced tokens (ARTs) and e-money tokens (EMTs) that are not authorised under MiCAR. It does not affect stablecoins that have obtained the relevant MiCAR authorisation and are listed on ESMA's official register.
Can a CASP continue to hold non-compliant stablecoins in custody after 8 January 2027?
No. The opinion requires that existing positions be settled as soon as possible and in any event no later than 8 January 2027. After that date, even the narrow settlement exception ceases to apply.
What does "orderly settlement" mean in practice?
It means facilitating the disposal or transfer of positions that clients already hold, in a way that does not disrupt markets or disadvantage clients. It does not mean allowing clients to swap into other non-compliant tokens or to add to their positions before selling.
How should the January 2027 deadline affect a CASP's year-end financial statements?
For firms with a December 2026 year-end, the opinion is likely a non-adjusting post-balance-sheet event requiring disclosure under IAS 10 if material. For those with earlier year-ends, it may be an adjusting event. Legal and accounting advisers should assess the specific facts for each entity, including the materiality of non-compliant stablecoin exposure.
Are non-EU CASPs affected?
The ESMA opinion directly addresses CASPs that are authorised under MiCAR, meaning EU-licensed entities. Non-EU CASPs serving EU clients may be affected indirectly if their EU-authorised counterparties or liquidity providers are required to cease services on those tokens, but the direct supervisory obligation rests with MiCAR-licensed CASPs.
Source: FMA Liechtenstein