Section 13563 Of Chapter 6. Refunds From California Revenue And Taxation Code >> Division 2. >> Part 8. >> Chapter 6.
13563
. (a) For purposes of determining interest on overpayments for
periods beginning before July 1, 2002, interest shall be allowed and
paid upon any overpayment of tax due under this part in the same
manner as provided in Sections 6621(a)(1) and 6622 of the Internal
Revenue Code.
(b) For purposes of determining interest on overpayments for
periods beginning on or after July 1, 2002, interest shall be allowed
and paid upon any overpayment of tax due under this part at the
lesser of the following:
(1) Five percent.
(2) The bond equivalent rate of 13-week United States Treasury
bills, determined as follows:
(A) The bond equivalent rate of 13-week United States Treasury
bills established at the first auction held during the month of
January shall be utilized for determining the appropriate rate for
the following July 1 to December 31, inclusive.
(B) The bond equivalent rate of 13-week United States Treasury
bills established at the first auction held during the month of July
shall be utilized for determining the appropriate rate for the
following January 1 to June 30, inclusive.
(c) For purposes of subdivision (b), in computing the amount of
any interest required to be paid by the state, that interest shall be
computed as simple interest, not compound interest. That interest
shall be allowed from the date on which payment would have become
delinquent, if not paid, or the date of actual payment, whichever is
later in time, to the date preceding the date of the refund warrant
by not more than 30 days, the date to be determined by the
Controller.