Summary
The GENIUS Act (US) and MiCA (EU) create structurally different regulatory frameworks for stablecoins that split global issuers into two regulated tiers. The frameworks converge on headline requirements (100% reserves, at-par redemption, licensed issuers) but diverge sharply on supervisory architecture, capital requirements, and geographic scope. The UK, Singapore, and Hong Kong add additional compliance vectors, creating a multi-regime landscape that raises compliance costs by an estimated 30-80 basis points of issuer revenue.
Key Points
- Supervisory architecture divergence: The GENIUS Act locates authority with prudential bank regulators (OCC/FDIC/Fed) and explicitly removes stablecoins from securities/commodities law — the cleanest single-regulator pathway globally. MiCA distributes authority across ESMA, EBA, and 27 national competent authorities, creating forum-shopping risk for issuers choosing a "home member state."
- Reserve requirements: Both require 100% reserve backing. GENIUS Act permits cash, central-bank balances, insured deposits, Treasuries (93-day max maturity), overnight Treasury repos, and government money-market funds. MiCA's requirements are broadly similar but with different implementation timelines and asset eligibility criteria.
- Capital requirements: GENIUS Act requires issuers above $10B outstanding to transition to federal framework. MiCA's "significant" ART/EMT threshold is €5B in average daily transaction value, triggering direct EBA supervision. Singapore's MAS uses a 50%-of-opex capital floor — a structurally different approach.
- Extraterritorial reach: The UK's framework captures any stablecoin "circulating in UK payment systems" even if the issuer is overseas — functionally requiring foreign issuers (USDT, USDC) to engage with the FCA. Hong Kong's Stablecoins Ordinance restricts reserves to HKD-eligible HQLA with daily attestations.
- Issuer exposure: Circle's USDC (NYDFS BitLicense + OCC trust charter) is closest to a clean GENIUS Act fit. Tether's USDT faces discontinuity in both regimes without a permitted-issuer charter or EU authorization. PayPal's PYUSD is structurally aligned through its trust-charter issuer.
- Enforcement context: The Binance $4.3B settlement (Nov 2023) and Tornado Cash sanctions litigation shape the supervisory mood. The GENIUS Act AML/CTF NPRM imports key elements of the Binance enforcement template directly into the permitted-issuer framework.
- Market impact: Compliant issuers expected to capture market share from offshore non-compliant competitors through 2027. Coinbase's $300M+ quarterly USDC revenue illustrates how stablecoin issuance economics flow downstream to exchange P&Ls.