EU Stablecoin Regulation in 2026 — MiCA Phase Two Bites

MiCA Phase Two enforcement landed in March 2026, and the practical impact on stablecoin issuers and EU exchanges is now visible.

The headline rule is reserve transparency: any stablecoin offered in the EU must publish monthly attestation reports and quarterly full audits, and reserves must be held with EU-licensed custodians. USDC complied early. USDT has effectively de-listed from EU-regulated venues, with most volume now routing through non-EU jurisdictions.

For EU exchanges, the practical impact is a narrowed stablecoin menu. Coinbase EU, Bitstamp and Kraken have all converged on a USDC-default offering, with EUR-denominated stablecoins getting fresh attention from issuers like Circle’s EURC and Société Générale’s EUR-CoinVertible.

For builders, the bigger question is whether MiCA-compliant stablecoins become the institutional default. Given the size of the EU market and the consistent compliance posture coming from major US issuers like Circle, the answer is increasingly yes — at least for institutional-flow stablecoins.