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EU MiCA · Markets in Crypto-Assets Regulation Overview

Confidence: Certain Updated 2026-05-26 Review by 2026-09-21 Sources 4 Machine-translated Original (JA)
#fintech#law#regulation#eu#stablecoin#mica
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This entry sits under fintech index. Read it with Japan Financial Regulation — Legal Framework for Tokens, Crypto Assets, and Payments for adjacent context and Three-Layer Structure of Japan's Stablecoin Regulatory Regime (JPYC, USDC, Project Pax) for the broader system boundary.

[!info] TL;DR MiCA is the EU-wide law regulating crypto-assets and stablecoins. It was passed in 2023-06 , partially took effect for SCs (ART / EMT) in 2024-06 , and fully took effect in 2024-12 . MiCA aligns with U.S. GENIUS Act §501 and forms the basis for a U.S.-EU MRA. It is the EU pillar of the three-circle MRA and transforms Europe into a two-track compliant market centered on USDC / EURC.

Key facts

  • MiCA was passed in 2023-06 and fully took effect in 2024-12
  • Roughly 10-15 社 entities had obtained first-wave MiCA EMT licenses by round 1
  • EURC circulation in 2026-05 was €280M (vs USDC EU circulation of ~$8B, with the gap narrowing from 300x to ~20x) ; see EU MiCA implementation status 2026-05 · EMT/ART license diagram × USDT withdrawal × USDC market share reconstruction and Circle USDC / EURC issuer for detail
  • Issuer-restriction clauses for large ARTs above €5B constrain EU expansion of USD stablecoins such as USDT
  • USDT’s EU share fell from ~28% in 2024-12 to ~3% in 2026-05
  • Algorithmic stablecoins are explicitly banned under MiCA (a consequence of the UST collapse)
  • ESMA Q&A 2.7: DAI / USDS / LUSD without an issuer are not in scope of MiCA, but they cannot be offered to the public

Mechanism / How it works

MiCA’s 2 -type SC framework:

TypeNameRegulatory tierExample
EMT (E-Money Token)Single-fiat pegEBA + national central bankUSDC (Circle Europe) / EURC / PYUSD
ART (Asset-Referenced Token)Basket assets / multi-fiat pegEBA (special regulation)Almost no large-scale compliant ARTs

Key insight: MiCA classifies stablecoins by whether they are pegged to a single fiat currency, and pushes the vast majority of projects into the EMT bucket. ART carries too much regulatory burden, so it is rarely adopted. This is structurally similar to GENIUS §501 chain-level denylist enforcement: rules shape product form. For concrete MiCA CASP implementation detail, see EU MiCA CASP (Crypto-Asset Service Provider) regime; for horizontal comparison with HK / SG / JP, see Global VASP regulatory 8 -pole comparison matrix — JP / KR / HK / SG / EU / US / UAE / UK.

Core provisions: reserves under 100% (short-dated sovereign bills + central-bank deposits) + third-party custody of reserves + monthly audit disclosure + issuer must maintain an EU entity + capital requirements + supply caps (large ART > €5B restrictions + some limits on large EMTs) + whitelist (only EU-licensed issuers may circulate commercially in the EU) + coordination with GENIUS §501 (freeze function + AML/CFT required).

Origin & evolution

MiCA was proposed as part of the 2020-09 EU Commission Digital Finance Package. It was passed in 2023-06 as Regulation (EU) 2023/1114. The SC section (ART / EMT) took effect in 2024-06 , and the full regime in 2024-12 . Pressure players included Tether / USDT (MiCA non-acceptance + Article 17 large-SC restrictions limiting EU circulation), DAI / LUSD / FRAX (issuerless SC restrictions), and algorithmic stablecoins (explicitly banned after the UST collapse). Beneficiaries include Circle (USDC EU + EURC double brand), Société Générale (EUR-pegged STBL), BBVA / Santander (planned EUR SC issuance), and MiCA-compliant exchanges (Kraken / Bitstamp / Coinbase EU). MiCA forms a dual-track framework of business + resilience together with DORA.

Sources

Last refresh (2026-05-26): synced EURC 2026-05 numbers (€280M) with eu-mica-implementation-status-2026; added Circle USDC and implementation-status wikilinks.