The opinion tells national regulators to presume that any service touching a non-compliant stablecoin is incompatible with a platform's duty to act in its clients' best interests. Its three-month clock covers clearing leftover customer balances, not a grace period for listings.
The European Securities and Markets Authority told national regulators on Thursday that crypto platforms licensed in the European Union should not be offering any service tied to stablecoins that fall outside MiCA, and that supervisors should presume the firms still offering them are breaching their duty to clients.
The instrument is an opinion, reference ESMA75-113276571-1742, published on 8 October and addressed to national competent authorities rather than to firms. ESMA issued it under Article 29(1)(a) of the regulation that established the authority, which is its power to put opinions to national supervisors. The document names no token and no issuer, and it carries no estimate of how much non-compliant stablecoin exposure sits on European platforms.
Its central move is a presumption. Paragraph 12 says crypto-asset service providers should not provide crypto-asset services in relation to asset-referenced tokens or e-money tokens that are not compliant with MiCA. Paragraph 13 says that providing any of those services should give rise to the presumption that the firm is acting incompatibly with Article 66(1), the duty to act honestly, fairly and professionally in the best interests of clients. ESMA asks supervisors to look across the whole licensed range, singly or in combination: operating a trading platform, exchange, order execution, placing, reception and transmission of orders, advice, transfers, custody and portfolio management.
Several outlets have framed the opinion as a three-month countdown to delisting. The document reads differently. The three months appears once, in paragraph 27, and it attaches to remediation: where a national regulator identifies remaining legacy exposures, remediation should happen as soon as possible and no later than three months after the opinion's publication. Nothing in the text grants a transition period for continuing to list or trade these tokens. The presumption applies now, and the clock governs how long clearing up what is left may take.
Whether a customer gets any service at all inside that window is a supervisor's decision rather than an entitlement. Paragraph 23 lets national authorities permit strictly limited residual services so that a firm can wind down in an orderly way. Paragraph 24 confines those services to liquidating, converting, withdrawing, transferring or safekeeping holdings a client already has, and requires that they be time-limited, clearly communicated to clients and closely supervised. Paragraph 22 asks firms to apply technical, contractual and organizational controls so that clients cannot acquire these tokens or add to a position. Paragraph 27 describes what may continue as sell-only, conversion, transfer or withdrawal.
Three months from 8 October is 8 January, the date the outlets covering the opinion have used. The opinion does not state that date itself; the period simply runs from publication, and paragraph 28 says only that ESMA will monitor timely application together with national authorities. The document does not say whether it binds anyone, and it carries none of the comply-or-explain language that accompanies some ESMA instruments.
That bears on what the opinion can achieve on its own. According to CryptoSlate, ESMA asked the European Commission on 30 September for legislation that would prohibit every licensable service involving a non-compliant stablecoin, with no implementation date attached. A supervisor that already held a clean prohibition would have less reason to ask for one. CryptoSlate also points to a precedent: a statement ESMA issued on 17 January 2025 that restricted trading in these tokens while leaving custody and transfers open. The October opinion narrows that gap, treating custody and transfers as presumptively incompatible as well and allowing them only as part of a supervised exit.
The opinion names nobody, but its target is not obscure. CoinDesk identifies Tether's USDT, the largest stablecoin by market value, as the prominent token that is not authorized under MiCA, and reports that PayPal's PYUSD, the third largest, is not authorized either. Several platforms had already restricted USDT for European users before this week. CryptoSlate points to Coinbase's guidance for retail customers in the European Economic Area, which labels USDT non-compliant, and to Kraken's, which lists the token among those delisted for trading in the EEA while still allowing deposits and withdrawals. Neither firm's guidance was examined for this article. Tether has not commented publicly on the opinion, and none of the sources read for this article carried a response from the company or from a trade body. Tether is separately defending its freezing powers in court, in a complaint from a payments firm that follows an earlier claim brought on much the same theory.
Authorized issuers carry constraints that unauthorized ones avoid, which is the ground on which ESMA argues against letting licensed platforms carry both. An authorized euro token such as Revolut's EURR cannot pay holders interest on its reserves. European bank custody offerings have been assembled around the authorized set, with Deutsche Bank naming USDC, EURC and EURAU alongside bitcoin and ether. Other jurisdictions are drawing comparable lines, among them Singapore's proposal to bar interest on every stablecoin it licenses.
ESMA's first ask of supervisors is an inventory: paragraph 25 tells them to assess which of the platforms they license provide these services, or maintain or facilitate access to the tokens. The opinion does not say what follows for a firm that keeps doing it. The presumption it creates is a supervisory starting point, and any consequence runs through national enforcement under MiCA.
