The European System of Central Banks has recommended stripping out MiCA's mandatory commercial-bank deposit floors for stablecoin reserves — a structural shift that would remove a key contagion channel between token issuers and the banking sector, but leaves institutional holders with harder questions about redemption liquidity under stress.
Reuters reported on 22 September 2026 that the ESCB's proposal would replace the current statutory minimums — 30% of reserves in bank deposits for standard stablecoins, 60% for tokens classified as significant — with requirements anchored instead to short-maturity assets maturing within one and five working days. The move aligns EU thinking more closely with the Bank of England's approach, which has already excluded commercial-bank backing from its systemic sterling stablecoin framework entirely.
The logic is straightforward, and the risk runs in two directions. Under the current MiCA design, cash backing a stablecoin simultaneously serves as funding for the commercial bank holding it. That entanglement means a bank under stress can impair the very reserves meant to protect token holders — precisely the dynamic that played out in March 2023 when USDC briefly lost its dollar peg after reserves sat at the failing Silicon Valley Bank.
The reverse problem is equally serious for systemic stability. If stablecoin holders rush to redeem en masse, the issuer must rapidly withdraw large deposits from its banking partners to honor obligations. Reserve money earmarked for token holders becomes funding a bank can lose in hours, amplifying rather than absorbing financial stress.
"Bank failure can damage confidence in the quality and availability of stablecoin reserves," the ECB noted in a June 2026 speech — an implicit acknowledgment that the current MiCA architecture creates the very fragility it was designed to manage.
The Bank of England's steady-state framework provides a useful comparison point for institutional treasuries operating across both jurisdictions. The UK model permits up to 70% of systemic sterling stablecoin reserves in short-term UK government debt with no more than six months remaining to maturity, with the remaining 30% held as central-bank deposits that bear no interest. Issuers deemed systemic at launch may initially hold up to 95% in government debt as they build scale.
Critically, the UK framework also includes a planned central-bank liquidity backstop and explicit financial risk reserves — buffers designed to address the scenario where securities must be liquidated quickly to meet redemption demand. The Bank's consultation on its draft Code of Practice closed on 22 September 2026, with final rules expected by end of 2026.
The ESCB's reported recommendation stops short of the UK's outright exclusion of commercial-bank backing. It represents a relaxation of mandatory bank allocations, not their elimination — a distinction that matters for assessing residual counterparty exposure in EU-issued stablecoin reserves.
Moving reserves into short-maturity sovereign assets resolves one class of risk while introducing another. An ECB analysis of sovereign-bond markets found that significant stablecoin issuers could meet redemptions equal to 60% of total supply by drawing down deposits alone — without immediately selling bonds. That buffer disappears if the deposit requirement is removed.
For treasury and risk management teams at European institutions, the ESCB recommendation signals a directional policy shift worth incorporating into stablecoin counterparty assessments now — even though no regulatory change is yet in force. The trajectory is toward reserve compositions that reduce banking-sector contagion exposure but demand more rigorous analysis of issuer-specific liquidity waterfall arrangements.
Institutions allocating to or settling via MiCA-compliant stablecoins should monitor the EU legislative pipeline for formal amendment proposals, track individual issuer disclosures on reserve composition as the policy debate develops, and stress-test redemption assumptions against scenarios where short-maturity asset markets are dislocated. The comparison with the UK framework also highlights a gap: absent a European equivalent of the Bank of England's planned liquidity facility, the EU reform may produce reserve structures that are theoretically safer from bank contagion but practically harder to liquidate at scale under stress.
Keywords: MiCA stablecoin reserves, European System of Central Banks, stablecoin regulation EU, Bank of England stablecoin, crypto reserve requirements, ESCB reform, stablecoin redemption risk, institutional crypto Europe
Source: CryptoSlate