Section 5150.5.

In any action in which the recovery of a penalty assessed pursuant to paragraph (1), (2), or (3) of subdivision (c) of Section 830 is allowed by the court, the plaintiff shall be entitled to interest on the penalties for which recovery is allowed, at the applicable rate or rates in effect from time to time and payable on a refund of tax, as provided in Section 5151. This interest shall be payable from the date of filing of the claim for refund, but in no event earlier than the date of payment of the penalty or installments thereof sought to be refunded, to the date of entry of judgment. This accrued interest shall be included in the judgment.

(Amended by Stats. 2011, Ch. 352, Sec. 12. Effective January 1, 2012.)