Europe’s Central Banks Move Against MiCA’s Stablecoin Reserve Mandate
TREE NEWS reports: Tether CEO Paolo Ardoino has disclosed that European central banks are pressuring Brussels to delete the stablecoin reserve provisions embedded in the Markets in Crypto-Assets (MiCA) regulation. The contested clause would force large stablecoin issuers to hold 60% of their reserves in commercial bank deposits — a requirement Tether refused to accept, ultimately abandoning its bid for an EU operating license.
Why the 60% Bank Deposit Rule Matters
The provision effectively forces systemic stablecoin issuers to warehouse the majority of their backing inside the traditional banking system. For Tether, whose reserves are dominated by short-term U.S. Treasury bills, that mandate is not merely inconvenient — it is structurally hostile. T-bills offer transparent, liquid, yield-bearing exposure to the world’s deepest sovereign debt market. Forcing 60% into commercial bank deposits would concentrate counterparty risk, reduce reserve transparency, and cut into the interest income that underpins Tether’s profitability.
Ardoino’s disclosure suggests that central banks themselves now recognize the rule as problematic. European monetary authorities have spent years warning that dollar-denominated stablecoins could erode monetary sovereignty and siphon deposits away from the banking sector. The pushback on MiCA’s own reserve clause implies a quieter fear: that driving issuers like Tether out of the EU may weaken oversight rather than strengthen it, pushing activity into offshore venues where European regulators have no visibility.
A Regulatory Regime Fighting Itself
MiCA was designed as the world’s first comprehensive crypto framework, and its stablecoin rules were meant to be its centerpiece. Instead, the bloc now faces an awkward reality: its largest stablecoin — USDT, with a circulating supply well above $100 billion — operates outside the regime entirely. Circle’s USDC complied, but the market’s dominant liquidity instrument did not. If the reserve clause is removed, MiCA becomes more accommodative but also less distinctive; if it stays, Europe risks a stablecoin market dominated by smaller, euro-denominated tokens with limited global utility.
What to Watch
- Whether the European Commission formally proposes an amendment to the reserve provisions, and on what timetable.
- Whether Tether signals any willingness to re-enter the EU licensing process if the clause is softened.
- How euro-denominated stablecoin initiatives respond — a relaxed regime could accelerate their growth, or expose them to dollar-based competition.
- Whether other jurisdictions treat the episode as evidence that bank-deposit reserve mandates are unworkable at scale.
The episode captures a broader tension in stablecoin regulation worldwide: policymakers want issuers inside the banking perimeter for safety, while the market’s largest players view that perimeter as the very risk they were built to avoid. Europe’s decision will be read closely in Washington, London, and Singapore — all of which are drafting their own rules.




