HMRC published its first official statistics on taxable cryptoasset gains on 27 August 2026, as part of its annual Capital Gains Tax statistics. In the 2024 to 2025 tax year, 240 people declared more than £1 million in capital gains from cryptoassets, reporting £717 million in gains between them. Overall, 17,600 individuals made Capital Gains Tax-liable cryptoasset disposals, with total disposal proceeds of £13.8 billion and gains of £1.38 billion, an average gain of £78,000 per individual. Around 87% of those reporting gains were male and around 13% female, according to the release.

Financial Secretary to the Treasury James Murray said taxes are due on cryptoasset gains like any other gains and that the work supports efforts to close the tax gap. HMRC Permanent Secretary John-Paul Marks said people should check they are paying any tax owed as new international reporting rules take effect.

The UK began implementing the OECD's Cryptoasset Reporting Framework from January 2026, under which service providers must report customer information to tax authorities. HMRC is due to start receiving this data from 2027, and non-compliant providers may face penalties of up to £300 per user. The release notes that Self Assessment returns for income or gains in the 2025 to 2026 tax year are due by 31 January 2027.