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Koichi Sato

Senior Advisor


Koichi Sato joined the Regional Taxation Bureau in 1982 where he has overseen corporate taxation and tax audit for 37 years mainly within the jurisdiction of the Tokyo Regional Taxation Bureau. He served as Director of International Information Division 2, Investigation Department No. 1, Director of Administration Division, Tokyo Regional Tax Tribunal, Director of Investigation and Hearing Division, Investigation Department No. 1, and Director of Office of National Litigator, Taxation Department No. 1. After leaving, he became a Senior Advisor for Shiodome Partners Tax Corporation in August 2019. He engages in services such as tax audit attendance, tax litigation handling, and preliminary confirmation for domestic and foreign clients.


  • CPTA (Certified Public Tax Accountant)