MiCA stablecoins: EMTs, ARTs, and what happens if they are not authorised

In market speech a stablecoin is a crypto-asset that is meant to hold steady against an official currency or some other value. Regulation (EU) 2023/1114 does not use that word as a legal bucket. It splits the ground into an e-money token, an EMT, and an asset-referenced token, an ART. What a crypto-asset service provider authorisation is — the CASP authorisation — is set out in the MiCA licence guide. This page does not redefine it. The subject here is the token, and what ESMA said in 2026 about providing services when the token does not meet the regulation.

Updated November 2026. Opinion ESMA75-113276571-1742, dated 8 October 2026, and the press release that presents it, expect authorised CASPs to stop providing services in the Union on ARTs and EMTs that do not comply with MiCA. Paragraph 27 sets remediation of legacy exposures at no later than three months after publication, which runs to 8 January 2027. The EBA press release of 14 October 2026 classifies USDC issued by Circle Internet Financial Europe SAS as the first significant EMT. Neither the opinion nor the ESMA press release names an individual token.

EMT and ART, in Article 3

Article 3(1)(7) defines an e-money token as a type of crypto-asset that purports to maintain a stable value by referencing the value of one official currency. Point (6) defines an asset-referenced token as a type of crypto-asset that is not an EMT and that purports to maintain a stable value by referencing another value or right, or a combination of them, including one or more official currencies. A token tied to a single official currency falls, on that definition, into the EMT. A token tied to a basket, a commodity or several currencies falls into the ART, unless another rule takes it out. The link above opens the regulation on EUR-Lex; the article numbers are those of that consolidated text.

Offering these tokens to the public, or seeking their admission to trading, is not one of the CASP services lettered a to j. It has its own issuer, white-paper and, for an EMT, credit-institution or electronic-money-institution conditions. Titles III and IV of the same regulation set that regime. A CASP may custody, exchange or transfer a token. That does not make the CASP the issuer, and it does not cure an issue made outside those titles.

So “does this stablecoin have MiCA?” is not answered only by checking whether the exchange is in CASPS.csv. The file lists service providers and the services they have notified. It is not a census of tokens. ESMA’s MiCA page describes the provider register. A token offered in the Union is checked through the issuer, the notified white paper and the authority that supervises that issue.

What the 8 October 2026 opinion asks for

The opinion is addressed to national competent authorities, under Article 29(1)(a) of Regulation (EU) No 1095/2010. It is not a sanction against a named firm and it does not open a case against a brand. Paragraph 12 takes the view that CASPs should not provide crypto-asset services in relation to ARTs or EMTs that do not comply with the applicable MiCA requirements. Paragraph 22 states the expectation: CASPs should not maintain, introduce or facilitate access for EU clients to those tokens through their services, and they should put in place technical, contractual and organisational controls to prevent it, including controls that stop the client acquiring or increasing a position.

The press release lists the range: trading platforms, exchange, execution of orders, placing, reception and transmission, advice, transfers, custody and administration, and portfolio management, alone or combined. That is the same range Article 3(1)(16) letters a to j. Those letters are unpacked in the CASP services guide. Paragraph 14 says the conclusion does not depend on each individual service itself being an offer to the public or an admission to trading.

Paragraph 19 sets aside a warning, a client acknowledgement or an extra disclosure. ESMA’s reason is that those steps do not stop the token remaining available and do not stand in for the Title III and Title IV safeguards. That is the opinion’s paragraph, not a gloss added here.

Paragraphs 23, 24 and 27 leave a narrow path for what is already held. An authority may allow strictly limited residual services where they are needed for an orderly wind-down and to avoid client detriment: liquidation, conversion, withdrawal, transfer or safekeeping of existing holdings. They should not facilitate new acquisitions, promotion, active trading or continued market availability. Paragraph 27 says that where legacy exposures remain, the authority should require remediation as soon as possible and no later than three months after the date of publication. The opinion is dated 8 October 2026. That period runs to 8 January 2027. Any service that continues inside it has to be time-limited, risk-based and closely supervised.

Paragraph 4 says the opinion complements European Commission Q&A 2404 and an earlier ESMA public statement on certain services in non-compliant ARTs and EMTs. This page does not restate those earlier texts. The October 2026 opinion is the one that sets the expectation described here.

USDT and the other names people search

Someone searching “USDT MiCA” wants to know whether they can buy or hold that crypto-asset on an exchange in the Union. The opinion does not answer with a name. The five-page PDF does not contain USDT, USDC, EURC, Tether or Circle. The press release does not name them either. Saying the opinion “bans USDT” would add a fact the document does not contain. What a reader can do is apply the category: if a token purports to hold a stable value against one official currency, the regulation treats it as an EMT or, if the reference is something else, as an ART, and then Titles III or IV and the opinion’s expectation of the CASP that offers it are what matter.

The EBA release of 14 October 2026 does name a token, and it should not be folded into the opinion. The EBA classifies USDC issued by Circle Internet Financial Europe SAS as a significant EMT, the first of 45 EMTs notified in the Union. From 12 November 2026 supervision is split. Own funds, the reserve of assets, liquidity requirements and recovery and redemption plans move to the EBA. France’s ACPR keeps governance, qualifying holdings, fit and proper assessment, outsourcing and conflicts of interest. The release also says that USDC is issued in the Union by Circle Internet Financial Europe SAS and in the United States by Circle Internet Financial, LLC, and that the EBA has signed a memorandum of understanding with the New York State Department of Financial Services. The legal basis it cites is Articles 43 and 56 for classification, Commission Delegated Regulation (EU) 2024/1506 for the indicators, and Articles 117, 117(5), 119 and 128 for dual supervision and cooperation.

That release does not discuss other tokens from the same group. It does not classify a euro token and it does not mention the name EURC. This page therefore does not claim that another Circle token is authorised, or that it is not. That fact, if you need it, is in the notified white paper and the issuer’s register, not in the USDC classification.

What to look at before leaving a balance in a stablecoin

1. Identify the token and the issuer, not the ticker in the app. Two contracts can share a symbol.
2. See whether the reference is one official currency (the EMT definition) or another value (the ART definition), in Article 3.
3. Look for the notified white paper and the issuer’s authority. The exchange’s CASP authorisation is a different row: legal name, LEI and services, in the licence guide.
4. If the exchange is a CASP, the 8 October 2026 opinion describes what ESMA expects it to stop offering in non-compliant ARTs and EMTs, with the residual window in paragraph 27.
5. Do not treat a warning on the platform as a substitute for Title III or IV. Paragraph 19 says a warning is not enough.

Brands this site already publishes, where a row exists in the ESMA file, are gathered on MiCA-licensed alternatives. That page is a way to read legal name, LEI and services. It does not say which stablecoin each firm offers, and it is not a recommendation to buy. If the brand you use has no row, the register and the notices are set out in if the platform is not authorised.

Common questions