Through the CARF framework established by the OECD, a total of 77 jurisdictions have officially agreed to collaborate by exchanging cryptocurrency account information. The timeline for this global initiative varies by region. The UK and Korea are scheduled to begin their participation in 2027, while the US will join the effort in 2029. Meanwhile, trading platforms operating throughout the EU and the UK have been gathering these specific details since January 1, 2026. Tax authorities can expect to receive the very first batch of these reports next year.