The Bank of England has spent the better part of two years warning that stablecoins posed systemic risks requiring bank-like supervision. Last week, it quietly abandoned that position.

The central bank's revised framework, released Friday, drops proposed requirements that stablecoin issuers hold 100 percent of reserves in central bank deposits or short-dated gilts. Instead, it establishes a tiered system allowing approved issuers to back tokens with a broader basket of high-quality liquid assets—provided total sterling-denominated stablecoin issuance remains below £50 billion. The reversal represents the most significant regulatory climb-down in Governor Andrew Bailey's tenure and suggests Britain's post-Brexit ambitions in digital finance have finally overcome its institutional caution.

Why the BoE retreated

The original proposals, floated in late 2024, would have made compliant stablecoin issuance economically unviable. Requiring pound-for-pound central bank reserves meant issuers could earn only the Bank Rate on their float—currently around 4.5 percent—while bearing substantial compliance costs. Circle and Tether, the dominant dollar-stablecoin operators, had signaled they would simply bypass the UK market. Domestic fintech firms warned that Britain risked creating a regulatory framework with no participants.

Treasury officials, already anxious about London's slipping position in global finance, reportedly pressed the BoE to reconsider. The result is a framework that looks considerably more like Singapore's or the EU's MiCA regime: principles-based, tiered by systemic importance, and designed to attract rather than repel capital.

The £50 billion ceiling

The issuance cap is the framework's most novel feature. By setting an explicit limit on total sterling stablecoin supply, the BoE has essentially created a licensing market. Early entrants who secure approval will hold valuable optionality; latecomers may find themselves queuing for headroom. The cap also functions as a macroprudential tripwire: if sterling stablecoins approach systemic scale, the Bank retains authority to tighten requirements.

Whether £50 billion is the right number is debatable. For context, the UK's M1 money supply exceeds £2.5 trillion. The cap represents less than 2 percent of narrow money—hardly a systemic threat, but large enough to support meaningful commercial activity in payments, remittances, and DeFi settlement.

Our take

Central banks rarely admit error this cleanly. The BoE's retreat is less about stablecoins specifically than about Britain's broader identity crisis in financial regulation. Having left the EU's single market, the UK must now compete for mobile capital against jurisdictions with lighter touches and faster approvals. The £50 billion cap is a clever hedge—permissive enough to attract issuers, restrictive enough to preserve regulatory credibility. Whether London can actually execute on its crypto ambitions remains uncertain, but at least the door is now open rather than bolted shut.