[UK Requires Crypto Exchanges to Report Customer Transaction Records Starting in 2026] The UK’s HM Revenue and Customs (HMRC) has issued new regulations requiring cryptocurrency exchanges operating in the UK to collect complete transaction records of all UK customers starting from January 1, 2026, and report them to HMRC the following year. HMRC will use this data to cross-check tax returns, ensure tax compliance, and penalize violations. The new regulation aims to align with the OECD’s Crypto-Asset Reporting Framework (CARF), which has already been implemented in regions such as the EU, Canada, Australia, Japan, and South Korea to enhance transparency in the digital asset market.