<ul><li>Starting from 2026, the UK is implementing mandatory CARF-based data collection for crypto transactions, requiring detailed reporting of user and transaction information.</li><li>The Cryptoasset Reporting Framework (CARF) issued by HM Revenue & Customs mandates the collection of personal information for individuals and entities, including TIN, UTR, and data on controlling persons.</li><li>Individual users need to provide personal details like name, date of birth, address, and tax identification number, while entity users have specific requirements such as legal business name and company registration number.</li><li>Transaction-level data to be recorded includes type of crypto asset, type of transaction, number of units, and transaction value, with penalties up to £300 per user for incomplete or inaccurate reporting.</li></ul>

UK Introduces Mandatory CARF-Based Data Collection from 2026

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