The UK's Stablecoin Sandbox Paradox: Why the FCA Is Building a Sterling Token Market That the Bank of England's Own Rules Could Kill
The pound sterling — one of five global reserve currencies, anchor of a $3.1 trillion daily foreign-exchange market — holds a share of the $300 billion stablecoin economy so small it doesn't register as a rounding error. In February 2026, the UK Financial Conduct Authority decided to change that by selecting four firms, including 60-million-customer fintech giant Revolut, for a stablecoin regulatory sandbox. But buried inside a parallel Bank of England consultation paper is a rule that could strangle these tokens before they ever reach scale: a $20,000 per-person holding cap and a requirement that systemic issuers park 40% of reserves in zero-yield central bank accounts.
Two branches of the same government are running in opposite directions — one fostering innovation, the other preparing to cap it. Understanding this tension is essential for anyone betting on where the next wave of regulated stablecoins will be issued.