Japan has adopted the OECD's cryptocurrency reporting framework starting from January 1, 2026.

PANews January 6 News, according to NADA NEWS reports, Japan officially adopted the OECD-issued Crypto-Asset Reporting Framework (CARF) starting January 1, 2026. This is a new mechanism aimed at enabling tax authorities worldwide to share information on crypto-asset transactions. Japan decided to introduce this mechanism through tax reform, and the National Tax Agency published a user-facing promotional manual before implementation last December, while also advancing preparations to collect information through exchanges.

Affected by this system’s implementation, Japanese crypto exchange Coincheck sent a notification to all users on January 6, requesting them to submit information such as “tax residence country.” Other Japanese exchanges will also gradually proceed with information collection. Existing users who have opened accounts before the end of 2025 are required to submit their information by December 31, 2026. New users opening accounts after January 1 of this year must complete the declaration during the account opening process. Failure to submit the above information within the specified deadline or submitting false information may result in penalties according to laws and regulations.