USDC Becomes EU’s First 'Significant' Stablecoin Under MiCA

USDC designated EU's first significant e-money token

Circle’s USDC has been officially classified as the European Union’s first "significant" e-money token under the Markets in Crypto-Assets Regulation (MiCA). The European Banking Authority (EBA) announced the designation on October 14 after applying MiCA’s significance criteria to the pool of 45 notified e-money tokens. That decision triggers a split supervisory regime: the EBA will assume direct oversight of specific financial safeguards for USDC effective November 12, 2026, while France’s Autorité de Contrôle Prudentiel et de Résolution (ACPR) will continue supervising governance and organizational matters.

The move marks a milestone for stablecoin regulation in Europe and highlights how cross-border issuance models—USDC is issued by Circle entities in both Europe and the United States—intersect with evolving supervisory frameworks. For crypto market participants, payments providers, institutional investors and stablecoin users, the EBA decision clarifies which authority will enforce reserve, liquidity and redemption requirements for one of the world’s largest dollar-backed digital assets.

Why USDC met the "significant" test under MiCA

MiCA defines an e-money token (EMT) as a digital asset pegged to a fiat currency and sets out objective and indicative measures to identify tokens that merit "significant" status. The EBA’s designation follows an assessment conducted under Article 56 of MiCA: when a token meets at least three of the Article 43 criteria—factors such as number of holders, transaction volumes, token value and other usage metrics—the EBA must evaluate whether to classify it as significant.

USDC is the world’s second-largest stablecoin by market capitalization and is widely used across trading, payments and decentralized finance (DeFi) applications. Circle issues USDC via separate legal entities in Europe (Circle Internet Financial Europe SAS) and the United States (Circle Internet Financial, LLC). While the EBA’s statement did not specify which individual metrics triggered the designation, USDC’s widespread circulation, high transaction activity and sizable reserves made it a clear candidate for the extra layer of supervision that MiCA provides.

Context: Circle’s prior MiCA licensing in France

Circle has been operating in the EU under a French electronic money institution license since July 2024, when the ACPR authorized Circle to issue USDC and the euro-backed EURC under the MiCA framework. That license established France as Circle’s regulatory base for EU issuance. The October 14 classification does not relicense USDC for Europe; instead, it imposes an additional set of supervisory responsibilities that apply to tokens designated as significant EMTs.

What the EBA will supervise from November 12

Under Article 117 of MiCA and the EBA’s supervisory rulebook, the EBA will take responsibility for a specific set of financial safeguards tied to significant e-money tokens beginning November 12, 2026. These supervisory areas include:

• Own funds requirements: ensuring the issuer maintains sufficient capital buffers and financial resources to meet regulatory responsibilities and absorb shocks.
• Reserve assets: oversight of the assets held to back USDC and ensure tokenholders can redeem holdings as intended.
• Liquidity requirements: ensuring a sufficiently liquid asset mix to meet redemption demands promptly.
• Recovery plans: validating procedures for managing issuer distress and preserving consumer protection.
• Redemption arrangements: confirming that tokenholders have clear, enforceable means to exchange USDC for fiat currency when required.

These areas are critical for stablecoin stability, market confidence and financial integrity. The EBA’s direct supervision aims to ensure consistent application of reserve management and redemption safeguards for significant EMTs across EU member states.

What remains with the ACPR

The ACPR will retain supervisory authority over other regulatory domains related to Circle’s European operations. Specifically, France’s regulator will continue to oversee corporate governance, qualifying ownership assessments, management suitability reviews, outsourcing arrangements and potential conflicts of interest. The EBA and ACPR have stated they will cooperate during the transfer of responsibilities to preserve supervisory continuity and avoid gaps in oversight.

The division of tasks is not a handover of all responsibilities to the EBA; national competent authorities keep substantial oversight duties. For USDC, the EBA’s remit focuses narrowly on the financial safeguards that ensure the token’s resilience and redeemability, while the ACPR handles entity-level governance and conduct supervision.

Regulatory cooperation across the Atlantic

In parallel with the designation, the EBA confirmed a cooperation agreement with the New York State Department of Financial Services (NYDFS). The memorandum of understanding establishes channels for information-sharing and supervisory coordination on cross-border stablecoin activities—an important development given USDC’s issuance through Circle’s U.S. and European entities.

The EBA emphasized that the MOU does not replace legal responsibilities of either authority but is designed to facilitate effective supervision where tokens span jurisdictions. Cross-border information exchange will support the EBA’s ability to monitor reserve composition, liquidity risks and operational resilience for stablecoins issued through multiple entities.

Circle’s lobbying for MiCA amendments and reserve rules

The EBA classification arrives amid Circle’s public calls for targeted revisions to MiCA’s reserve asset rules. Earlier in October, Circle urged EU policymakers to reconsider fixed minimum thresholds that require issuers to hold a portion of reserves as deposits with credit institutions. The company argued these mandates could heighten exposure to banking sector risks—pointing to the 2023 Silicon Valley Bank collapse when around $3.3 billion of USDC reserves were briefly inaccessible.

Circle has proposed tying deposit requirements more closely to reserve liquidity profiles rather than fixed percentages of reserves. The company also sought clearer recognition of regulated non-EU issuers and improved rules for cross-border issuance. In its public assessments, Circle stated that only a small fraction of the world’s largest stablecoins were fully compliant with MiCA as of early October, identifying USDC, EURC and USDG among compliant tokens.

While Circle’s policy arguments seek to reshape parts of MiCA, the EBA’s October classification applies the current legal framework and does not change existing MiCA requirements. The classification simply implements the supervisory arrangements envisaged by the regulation for significant EMTs.

International context and systemic risk considerations

Global policymakers and standard-setters are increasingly focused on stablecoin risks and cross-border regulatory gaps. The Financial Stability Board (FSB) recently published analysis on vulnerabilities tied to cross-border stablecoin arrangements and emphasized the importance of supervisory cooperation and data sharing. MiCA’s design anticipates these cross-border challenges by requiring the EBA to convene supervisory colleges for significant tokens, with the regulator chairing a forum for relevant authorities to exchange information and coordinate responses.

The EBA’s role includes periodic reassessments of whether tokens continue to meet significance criteria. The Commission Delegated Regulation (EU) 2024/1506 provides indicators that support these assessments alongside MiCA’s statutory criteria. For market participants, this means supervision of significant tokens is an ongoing process rather than a one-time determination.

Implications for market participants and stablecoin users

The EBA’s oversight of USDC’s reserves, liquidity and redemption processes seeks to strengthen investor protection and mitigate financial stability risks. For exchanges, custodians and DeFi platforms that rely on USDC liquidity, clearer supervisory accountability should increase operational predictability. For professional investors and payments businesses, the EBA’s involvement may reduce uncertainty about how reserve and redemption obligations will be enforced across EU borders.

At the same time, issuers and regulated institutions should prepare for enhanced reporting, compliance and supervisory engagement. The split oversight model requires coordination across the EBA and national authorities, and issuers with multi-jurisdictional footprints must adapt governance, audit and operational practices to meet both sets of requirements.

What comes next

From November 12, 2026, the EBA will formally assume its designated supervisory tasks for USDC. The regulator will enforce rules on reserve composition, liquidity, own funds and recovery and redemption planning. The ACPR remains the national authority responsible for entity-level governance matters. Supervisory colleges and established MoUs should facilitate ongoing cross-border cooperation with U.S. counterparts, including the NYDFS.

For policymakers, the episode underscores the balance MiCA seeks to strike between protecting consumers and enabling innovation in digital payments. For market participants, the EBA’s action demonstrates that large, widely used stablecoins will attract heightened scrutiny designed to safeguard redeemability and financial stability.

Takeaway

The EBA’s designation of USDC as the EU’s first significant e-money token under MiCA is a landmark step in shaping stablecoin oversight. It places the token under a dual-layer supervisory model that combines European-level control of financial safeguards with national supervision of governance and conduct. As regulators deepen cross-border cooperation and issuers press for adjustments to reserved rules, market participants will need to stay attentive to evolving compliance expectations for stablecoin issuance and operations.

The EU’s approach—targeted supervision for tokens that reach a defined level of systemic importance—will likely influence global regulatory thinking on stablecoin risk management, reserve transparency and cross-border supervisory coordination.