Some 240 people declared more than £1 million each in capital gains from cryptoassets in the 2024 to 2025 tax year, according to figures published by HM Revenue and Customs, with the group reporting £717 million in gains between them.
In total, 17,600 individuals made disposals of cryptoassets such as Bitcoin, Ethereum and Dogecoin that were liable to Capital Gains Tax during the year. Between them they reported disposal proceeds of £13.8 billion and gains of £1.38 billion, an average gain of £78,000 per person. Around 87 per cent of those reporting cryptoasset gains were male and around 13 per cent were female.
The figures, published as part of HMRC’s annual Capital Gains Tax statistics, are the first of their kind. HMRC has been able to isolate crypto gains following the introduction of a dedicated part of the Self Assessment return for cryptoasset capital gains, giving the tax authority, and the wider public, a first clear view of how much money is being made from digital assets in the UK.
Exchanges will hand over customer data from 2027
The disclosure comes as HMRC prepares for a step up in its visibility of crypto trading. From January 2026, the UK began implementing the Cryptoasset Reporting Framework, an international standard developed by the Organisation for Economic Co-operation and Development.
Under the framework, cryptoasset service providers will be required to report customer information to tax authorities, and HMRC will start receiving that data from 2027, helping it to identify cryptoasset gains and income that have not been declared. Service providers that fail to comply may face penalties of up to £300 per user, under data sharing rules for crypto platforms that mirror the information banks already pass to the taxman.
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