[Code of Federal Regulations] [Title 26, Volume 18] [Revised as of April 1, 2004] From the U.S. Government Printing Office via GPO Access [CITE: 26CFR301.6602-1] [Page 394] TITLE 26--INTERNAL REVENUE CHAPTER I--INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY (CONTINUED) PART 301_PROCEDURE AND ADMINISTRATION--Table of Contents Interest Sec. 301.6602-1 Interest on erroneous refund recoverable by suit. Any portion of an internal revenue tax (or any interest, assessable penalty, additional amount, or addition to tax) which has been erroneously refunded, and which is recoverable by a civil action pursuant to section 7405, shall bear interest at the annual rate referred to in the regulations under section 6621 from the date of the payment of the refund. [T.D. 7384, 40 FR 49324, Oct. 22, 1975] Interest on Overpayments