UK taxpayers reported £1.38 billion ($1.88 billion) in taxable cryptoasset capital gains in the 2024-25 tax year, HM Revenue and Customs (HMRC) said in its first dedicated Capital Gains Tax statistics after adding a separate Self Assessment section for crypto disposals. Some 17,600 individuals reported £13.8 billion ($18.8 billion) in disposal proceeds; just 240 people each declared more than £1 million ($1.35 million) in gains and together booked £717 million ($974 million), or just over half of the total, while the average gain was about £78,000. Filers were heavily male (about 87%) and younger than the wider capital gains population. Blockchain analytics firm Chainalysis separately measured UK taxable crypto activity at $19.4 billion in 2025—behind only the United States, Germany and China—split into $6.0 billion of gains, $3.3 billion of income and $10.1 billion of payments, calling the figure a conservative lower bound based on six blockchains and excluding centralized-exchange activity. HMRC’s broader crypto compliance and education work has been linked to an estimated extra £168 million in Capital Gains Tax, alongside a sharp rise in nudge letters, while the Cryptoasset Reporting Framework (CARF) that took effect in January 2026 is expected to supply provider customer data from 2027; Chainalysis estimated CARF covers only 14% of on-chain taxable activity worldwide.