26 U.S.C. § 6407 : Internal Revenue Code — Procedure And Administration — Abatements, Credits, And Refunds — Procedure In General — Date Of Allowance Of Refund Or Credit Date: 7 Mar 2017 TEXT PDF The date on which the Secretary first authorizes the scheduling of an overassessment in respect of any internal revenue tax shall be considered as the date of allowance of refund or credit in respect of such tax. (Aug. 16, 1954, ch. 736, 68A Stat. 793; Pub. L. 94–455, title XIX, § 1906(b)(13)(A), Oct. 4, 1976, 90 Stat. 1834.) Amendments 1976—Pub. L. 94–455 struck out “or his delegate” after “Secretary” wherever appearing.