office of tax shelter analysisglossary / OFFICE OF TAX-SHELTER ANALYSIS Office of Tax-Shelter Analysis. An office in the U.S. Internal Revenue Service responsible for identifying and investigating questionable tax shelters. • The Office was created in 2000. — Abbr. OTSA. 词条贡献者 译者张文,国际知名商学院金融专业,擅长翻译各种与结构性融资及衍生品诉讼相关的法律文件。