A token targeting $1 can still move in pound terms. A stablecoin is designed to maintain a value against a reference asset, commonly a US dollar, but its peg, redemption terms and issuer can fail. The FCA describes qualifying fiat-backed stablecoins and published final UK issuer rules on 30 June 2026. The expanded FSMA cryptoasset regime starts on 25 October 2027, not in 2026. Until then, distinguish current anti-money-laundering registration and financial-promotion rules from future issuance authorisation. FCA regime timetable.
A dollar peg does not lock your pounds
Suppose Priya owns 1,000 tokens each targeting $1. At an illustrative £0.75 per dollar, their sterling value is £750; at £0.80, it is £800. That £50 change comes from foreign exchange alone. These are example rates, not market quotes. Fees, redemption restrictions or a de-peg can change the amount she actually receives. The future FCA rules address backing assets and redemption, but they do not turn tokens into FSCS-protected bank deposits. FSCS protection guide.
Do not assume a swap is tax-free
Under HMRC's current cryptoasset guidance, exchanging one token for another is generally a disposal. If Priya paid £760 for tokens and swapped them for different tokens worth £770, the illustrative gain is £10 before allowable costs; whether tax is owed depends on her wider position. A July 2026 government proposal would exempt disposals of eligible stablecoins from April 2027, but it was draft legislation as of September 2026. Keep transaction records and check the law in force when you transact.
