ESMA tells EU crypto firms to stop non-MiCA stablecoin services

The European Securities and Markets Authority told national regulators on October 8 that crypto-asset service providers authorized under the European Union’s Markets in Crypto-Assets regulation should stop providing regulated services involving stablecoins that do not meet MiCA requirements.

The opinion reaches beyond admitting a token to trading. ESMA said the supervisory expectation covers exchange, order execution, transfers, custody, portfolio management, advice and the other crypto services defined by MiCA, whether provided separately or together. National competent authorities should require any remaining legacy exposure to be remediated as soon as possible and no later than three months after the opinion’s publication.

That is consequential for authorized platforms that still support affected tokens, but it is not a newly enacted EU regulation or an automatic asset freeze. The document is an ESMA opinion addressed primarily to national supervisors to promote consistent enforcement. Individual authorities must assess firms and business arrangements in their jurisdictions.

Which stablecoins fall within the opinion

ESMA defines the affected assets by legal status rather than ticker. They are asset-referenced tokens or e-money tokens for which the conditions for a lawful public offer or admission to trading in the EU are not met, after accounting for applicable exemptions or transition arrangements.

The opinion does not publish a token list. It therefore does not establish from the document alone that every dollar-linked token, or every service involving a named stablecoin, has the same status in every circumstance.

For covered tokens, ESMA expects authorized providers not to maintain, introduce or facilitate EU-client access. Firms should adopt technical, contractual and organizational controls that stop clients from acquiring the tokens or increasing existing positions. The scope includes trading platforms, token-for-funds and token-for-token exchange, order services, placement, advice, transfers, custody and portfolio management.

Existing holders retain a wind-down route

The opinion distinguishes new or continuing access from an orderly exit. National supervisors may allow strictly limited residual services when necessary to reduce client harm. ESMA identifies liquidation, conversion, withdrawal, transfer and safekeeping of existing holdings as permissible wind-down functions, provided they are time-limited and closely supervised.

Those exceptions matter. The opinion does not direct platforms to trap customer assets, and it does not describe the three-month remediation window as permission for new purchases, promotion or active trading. It also does not impose a general ban on possession in self-custodied wallets.

ESMA separately told Cinco Días that unregulated services, such as crypto lending, are not themselves covered by the opinion. The regulator cautioned, however, that those activities may be closely linked to regulated custody or transfer services. The boundary therefore depends on the actual service arrangement, not the label attached to a product.

ESMA grounds the position in provider duties

MiCA Articles 16 and 48 set conditions for offering or admitting asset-referenced and e-money tokens to trading. ESMA expressly said its opinion does not mean every service involving such a token is itself a public offer or admission to trading.

Instead, the authority relied on the broader duty in Article 66 for service providers to act honestly, fairly and professionally in clients’ best interests. ESMA’s view is that warnings and disclosures cannot substitute for issuer-level protections that are absent when a token falls outside MiCA’s requirements. Those protections can include redemption rights, reserves or safeguarding, governance, disclosure and supervision, depending on the token category.

This is a supervisory interpretation of existing MiCA duties, not proof that a particular provider has breached them. The opinion records no enforcement action, customer-balance total or market-share estimate. Coinburn is reporting the opinion on October 10, two days after publication, and makes no claim about a token-price or trading-volume reaction.

The next verifiable steps are national supervisory reviews and provider notices identifying which services and assets are affected. Until those appear, the evidence supports a broad EU compliance direction and a limited exit window—not a universal prohibition on stablecoin ownership.