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

According to market news, Japan has officially implemented the OECD's Crypto Asset Reporting Framework (CARF) starting January 1, 2026. This is a new mechanism aimed at enabling tax authorities around the world to share information on crypto asset transactions.

Japan decided to introduce this mechanism through tax reform, and the National Tax Agency published a user-oriented brochure before its implementation last December, while also advancing preparations to collect information through exchanges. Affected by the implementation of this system, the Japanese crypto exchange Coincheck sent a notification to all users on January 6, requesting them to submit information such as their "tax residence country." Other exchanges in Japan will also gradually advance their information collection procedures. Existing users who opened accounts before the end of 2025 must submit their information by December 31, 2026, while users who open 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 content, may result in penalties under the law.