UK HMRC compels crypto platforms to share user data under 2026 rules to reclaim £300M taxes

On January 1, 2026, the UK's HMRC brought in new rules requiring cryptocurrency platforms to gather and submit detailed user information to help recover an estimated £300 million in tax. The framework targets Capital Gains Tax on digital asset disposals, sets a £3,000 tax-free CGT allowance, and encourages investors to use self-assessment and voluntary disclosure for past gains.