MiCA and Stablecoins: What EU Businesses Need to Know

MiCA — the EU's Markets in Crypto-Assets Regulation — is the first comprehensive stablecoin rulebook in a major economy, fully in force since mid-2024 with its last transitional period closed on July 1, 2026. For an EU business, the practical questions are narrow: which stablecoins can you legally use and hold at scale, what obligations fall on you versus the issuer, and what changes next. This page answers those with dates, sources, and no advice.

Last reviewed: September 2026 · Next review by: December 30, 2026. This page describes what the rules do; it is not legal, tax, or financial advice. Regulations change — confirm current status with counsel in your jurisdiction before acting.

What does MiCA say about stablecoins?

MiCA sorts stablecoins into two categories: e-money tokens (EMTs), which reference a single official currency — USDC and EURC are EMTs — and asset-referenced tokens (ARTs), which reference baskets or other assets. The stablecoin provisions (Titles III and IV) applied from June 30, 2024; rules for crypto-asset service providers (CASPs — exchanges, custodians, brokers) applied from December 30, 2024, with a transitional period that ended EU-wide on July 1, 2026. Since that date, per ESMA's April 2026 statement, any firm serving EU clients without MiCA authorization is in breach of EU law.

For EMT issuers, the core obligations are: be authorized as an electronic-money institution or credit institution in an EU member state; issue at par against funds received; give every holder a direct right to redeem at par, at any time, without fee; hold reserves with strict composition rules (at least 30% in bank deposits for ordinary EMTs, 60% for "significant" ones); and pay no interest to holders. Non-euro EMTs face an additional constraint: under Article 23, if an EMT's use as a means of exchange within a single currency area exceeds a quarterly average of one million transactions or €200 million per day, the issuer must stop issuing it. That cap is the provision most relevant to dollar stablecoins in Europe and the one the 2026 review is examining.

Which stablecoins are MiCA-compliant?

Those whose issuers hold EU authorization. Circle was first: on July 1, 2024, Circle Internet Financial Europe SAS, licensed as an EMI in France, began issuing USDC and EURC under MiCA — Circle's licensing page lists France EMI No. 17788. In April 2026, Circle France additionally obtained CASP authorization from the AMF (No. E2026-005), allowing custody and transfer services for USDC and EURC across the EEA on a passported basis. By the first quarter of 2026, industry tallies counted 19 authorized EMT issuers and 29 EMTs — 17 euro-denominated, 9 dollar-denominated — and zero authorized ARTs.

The consequence for non-compliant coins was concrete. Tether's USDT has no MiCA authorization; Coinbase delisted it for EEA users in late 2024, and Binance, Kraken and Crypto.com removed spot trading of USDT and several other non-compliant stablecoins for EEA customers effective March 31, 2025 (deposits and withdrawals were generally retained). For an EU business, "which stablecoin" is therefore not a preference question: to transact at scale through regulated EU venues, you use an EMT with an authorized issuer.

What does MiCA mean for a business that just wants to use stablecoins?

Less than it means for issuers, but not nothing. If you accept or pay in USDC or EURC as a business, MiCA regulates the issuer and the service providers you use, not you — but it shapes your choices. Use authorized CASPs: after July 1, 2026, an unlicensed exchange or custodian serving EU clients is operating illegally, and your funds there carry that risk. Prefer compliant EMTs: they carry the par-redemption right and reserve protections; non-compliant coins carry neither in the EU. Watch the payments boundary: the European Banking Authority signaled in February 2026 that transferring EMTs on behalf of clients may require separate authorization under payment-services law, with a tolerance period that ended March 2, 2026 — a point that matters for any business moving stablecoins for customers rather than for itself. Stablecoin rails like Arc — where USDC is the native gas and settlement asset — don't change the regulatory analysis; the coin's status does (how USDC sits across chains).

What's changing in 2026 and beyond?

Two live processes. The MiCA review: the European Commission opened a targeted consultation in May 2026 (deadline extended to end-September 2026) covering third-country equivalence, stablecoins issued by the same issuer inside and outside the EU under one brand, the Article 23 caps, and whether DeFi, staking and lending should come into scope. A review report is due mid-2027; new rules are unlikely before 2028. The digital euro: the Council adopted its position in December 2025, the European Parliament voted in July 2026, and trilogue negotiations began July 13, 2026, with political adoption targeted for end-2026 and ECB issuance around 2029 — a public-sector euro instrument alongside private EMTs, not a replacement for them. For Arc specifically, EURC — Circle's MiCA-compliant euro EMT — is part of the roadmap (what EURC is), which makes euro-denominated settlement on a USDC-gas chain a live possibility for EU treasuries (treasury operations on Arc).

FAQ

Is USDC MiCA-compliant? Yes. Circle's French EMI has issued USDC and EURC under MiCA since July 1, 2024, and obtained CASP authorization in April 2026. Confirm on Circle's licensing page, which lists the registration numbers.

Is USDT legal in the EU? Holding it isn't illegal, but Tether has no MiCA authorization, so regulated EEA venues delisted USDT spot trading in 2024–25. Businesses transacting through compliant EU providers use authorized EMTs instead.

Does MiCA apply to my company if we just pay suppliers in USDC? MiCA regulates issuers and service providers, not end users. It affects you indirectly: use authorized providers and compliant coins, and take advice if you move stablecoins on behalf of customers.

What is the €200 million cap? Article 23: a non-euro EMT used as a means of exchange beyond a quarterly average of 1 million transactions or €200 million per day within a currency area must cease issuance. Its interpretation is part of the 2026 review.

When did the MiCA transitional period end? July 1, 2026, for CASPs EU-wide. Since then, unlicensed firms may not serve EU clients.