tax homeglossary / tax home tax home. A taxpayer’s principal business location, post, or station. • Travel expenses are tax-deductible only if the taxpayer is traveling away from home. [Cases: Internal Revenue 3343.] 词条贡献者 译员Jerry,知名法学院知识产权法,专注翻译各种与版权与商标诉讼有关的法律文件。