HMRC has disclosed £1.38 billion in reported UK crypto gains, with just 240 investors accounting for more than half.

The figures mark the first time HM Revenue & Customs has published crypto-specific Capital Gains Tax data, giving the agency a formal baseline before new reporting rules begin supplying it with information directly from crypto providers.

For the 2024 to 2025 tax year, 17,600 individuals reported £13.8 billion of cryptoasset disposal proceeds and £1.38 billion of gains. Of that total, 240 people who each reported more than £1 million in gains accounted for £717 million.

The data comes from a dedicated crypto section added to Self Assessment returns. It therefore captures declared Capital Gains Tax-liable disposals rather…