According to reports, the UK's tax authorities announced that starting from January 1, 2026, cryptocurrency companies operating in the UK will be required to fully report user and transaction data, adhering to the Global Crypto Asset Reporting Framework (CARF). This move aims to combat tax evasion and enhance transparency. Platforms must record user identity, address, tax identification number, and details of each transaction, including those involving users from the UK or other CARF countries. Foreign companies serving UK clients must also comply, with violators facing fines of up to £300 per user.