Circle presses Europe to rethink MiCA stablecoin reserve rules

Circle has put Europe’s stablecoin rulebook back in the spotlight by urging policymakers to refine how MiCA treats reserve management, cross-border issuance and the supervision of large global tokens. The company’s position is not a rejection of regulation: Circle has repeatedly framed Europe’s Markets in Crypto-Assets framework as an important early attempt to bring stablecoins inside a formal perimeter. The sharper question is whether the current perimeter is flexible enough to attract the largest dollar stablecoins instead of leaving them primarily regulated elsewhere.

The issue centers on e-money tokens, the MiCA category that captures fiat-referenced stablecoins such as USDC and EURC. Under the current framework, issuers must hold a meaningful portion of reserves as deposits with credit institutions, with higher expectations for tokens considered significant. That design is intended to protect redemption liquidity and keep stablecoin backing close to supervised banks. Circle’s argument is that a fixed deposit floor can create a different vulnerability: large issuers may be forced to place too much reserve exposure inside the commercial banking system, even when short-dated government securities or other highly liquid instruments could provide a cleaner risk profile.

That reserve debate is especially relevant after several years in which stablecoin users have become more sensitive to the quality, location and accessibility of backing assets. Circle’s public transparency materials describe USDC reserves as held in cash and short-duration U.S. government obligations, with regular reporting around the composition of the reserve. For a payments token, the operational promise is simple: holders should be able to redeem at par, and the issuer should have enough liquidity to meet redemptions without relying on distressed asset sales or concentrated bank counterparties. MiCA’s challenge is to turn that principle into rules that work for both European issuers and globally circulating tokens.

Circle is also defending the idea of multi-issuance, where a stablecoin can be issued through an EU-authorized entity while remaining connected to non-EU issuance structures. That model matters because stablecoins are not used like local payment apps; they move across exchanges, wallets, blockchains and jurisdictions. If Europe requires a structure that splits EU supply from global supply too aggressively, liquidity could fragment and trading venues may prefer to keep major tokens outside the European perimeter. If Europe allows credible multi-issuance with clear accountability, it has a better chance of pulling global activity into supervised channels.

For RWA markets, this is more than a narrow compliance dispute. Stablecoins are increasingly the cash leg for tokenized treasuries, private credit funds, onchain FX, exchange settlement and collateral movement. A reserve rule that makes large stablecoin issuance harder in Europe could influence which venues support regulated euro-area flows and which issuers become default settlement assets for tokenized products. Conversely, a framework that supports strong redemption standards while allowing diversified liquid reserves could make MiCA a more useful base layer for institutional tokenization.

The European Banking Authority and national supervisors still have to balance issuer flexibility against financial-stability concerns. Regulators are rightly focused on redemption pressure, bank exposure, consumer protection and the risk that foreign stablecoins become systemically important inside Europe without sufficient local control. Circle’s proposal asks policymakers to solve those risks through liquidity, disclosure and authorization requirements rather than hard mechanical limits that may not scale with market size. The difference sounds technical, but it determines whether reserve management is optimized for resilience or simply for regulatory simplicity.

The timing is also important. Europe moved earlier than the United States with a comprehensive crypto-asset framework, while U.S. policymakers have increasingly treated dollar stablecoins as part of payments infrastructure and dollar distribution. That creates a competitive policy question: Europe can maintain strict standards without necessarily designing rules that discourage global issuers from entering. The next phase of MiCA implementation will show whether the bloc wants stablecoins to be mostly domestically issued instruments or globally interoperable payment tokens operating under European authorization.

The clean read is that Circle is pushing for a more market-structure-aware version of MiCA, not for a lighter-touch market. If policymakers can preserve strong redemption rights, transparent reserves and meaningful EU supervision while avoiding unnecessary liquidity fragmentation, Europe could strengthen its role in stablecoin settlement. If the rules remain too rigid, the largest tokens may continue to serve European users indirectly, but outside the full regulatory capture MiCA was designed to achieve.