accumulated incomeglossary / accumulated income Income that is retained in an account; esp., income that a trust has generated, but that has not yet been reinvested or distributed by the trustee. [Cases: Internal Revenue 4008. C.J.S. Internal Revenue § 446.] 词条贡献者 资深译员Betty,毕业于亚洲一流的高级翻译学院,专注翻译各种与商业移民有关的法律文件。