457 planglossary / 457 plan A type of deferred-compensation plan for employees of state and local governments and tax-exempt organizations that operates much like a 401(k) plan, but (except for governmental plans) is unfunded. IRC (26 USCA) § 457. 词条贡献者 资深译员Connie,国际知名法学院金融专业,擅长翻译各类与证券监管执法相关的法律文件。