UK Tightens Crypto Tax Rules: HMRC to Demand Full Transaction Data Starting 2026

Britain’s tax authority is taking a more aggressive stance on cryptocurrency taxation. Beginning January 1, 2026, all cryptocurrency exchanges and service providers operating within the UK will be required to collect extensive user data. This move aligns with international standards set by the OECD’s Crypto-Asset Reporting Framework (CARF), which has been endorsed by over 70 countries. 50 platforms currently operating in Britain face compliance requirements.