noun
Tax Bureau
Refers specifically to the Tax Bureau (主税局) within Japan's Ministry of Finance, responsible for tax policy planning and legislation.
主税局は税制改正の原案を作成する。
The Tax Bureau drafts the original tax reform proposals.
Compound of 主 (shu, 'main' or 'chief') + 税 (zei, 'tax') + 局 (kyoku, 'bureau' or 'office'). The term is a formal organizational name within the Japanese government.