United Kingdom Crypto-Asset Reporting Framework Begins
The United Kingdom began applying the Crypto-Asset Reporting Framework to UK-resident cryptoasset users, requiring covered service providers to start due diligence and recordkeeping for the first reporting period.
On January 1, 2026, the United Kingdom began applying the Crypto-Asset Reporting Framework, or CARF, to domestic reporting of UK tax-resident cryptoasset users. HM Revenue & Customs states that Reporting Cryptoasset Service Providers within scope had to begin the required due diligence, recordkeeping and related obligations from that date. The first reporting period runs through the end of 2026, with reports due by May 31, 2027.
For Bitcoin users, the change was not a ban, licensing event or alteration of Bitcoin itself. It was a shift in the information environment around regulated Bitcoin activity: transactions handled through covered providers became subject to systematic tax-data collection and later reporting. That made January 1 a useful historical marker in the movement from ad hoc crypto tax enforcement toward standardized international transaction reporting.