UK Slashes Stablecoin Capital to 1%, Undercuts EU MiCA

The Financial Conduct Authority cut the capital reserve requirement for stablecoin issuers to 1% of the total value of coins in circulation. The level is half the 2% floor demanded under the European Union's Markets in Crypto-Assets regulation. The Bank of England separately reversed its earlier proposal to cap individual stablecoin wallet balances at £20,000.

The FCA's decision fits a broader UK approach to crypto oversight that gives regulators discretion over specific requirements. UK officials have signalled since 2023 that they intend to make London a global hub for crypto-asset activity. The 1% requirement makes Britain the less capital-intensive jurisdiction for issuers that qualify, at least on capital costs.

The BoE's reversal of the wallet cap removes a growth ceiling on retail stablecoin use. Had the limit gone into effect, no single user could have held more than £20,000 in stablecoins at a regulated issuer. That would have effectively restricted the market's addressable base. The reversal signals that the central bank now sees stablecoins as a tool for mainstream payments, not a speculative product that needs a tight leash.

The capital gap between the UK and EU frameworks matters most for issuers weighing where to domicile. A stablecoin issuer holding $1 billion in circulation would need to set aside $10 million under UK rules versus $20 million under MiCA. That difference shows up directly in costs. In a market where margins on transaction fees are thin, the UK's lower buffer becomes a competitive edge. Issuers that already operate under both regimes, such as the firms behind USDC and EURC, can shift more volume through their UK-regulated vehicles if the regulatory advantage persists.

Exchanges that settle trades using stablecoins also benefit. Lower capital requirements for issuers mean lower fees for the settlement layer. UK-based trading platforms may offer tighter spreads on stablecoin pairs if their settlement costs fall relative to EU rivals. The effect is indirect but real in a business where every basis point of cost gets competed away.

The risk side of the trade is protection. A 1% capital buffer leaves less room for a failed issuer to make depositors whole. UK regulators argue that the requirement is paired with asset segregation and prudential standards that make the floor sufficient. The EU chose a higher number for a reason. If a large stablecoin issuer collapses, the UK's smaller cushion could mean larger losses for holders there compared with the EU.

The total market capitalisation of stablecoins has grown past $170 billion globally. Tokenized Treasury products have pushed past $15 billion. Sterling-denominated stablecoins have so far been a small slice, the UK rule change could accelerate issuance tied to the pound. The FCA's new capital requirement will take effect in the coming months, though the exact start date has not been announced. The BoE has not said when it will publish a revised consultation on stablecoin wallet limits.