Cal. Business and Professions Code § 163.5

Except as otherwise provided by law, the delinquency, penalty, or late fee for any licensee within the Department of Consumer Affairs shall be 50 percent of the renewal fee for such license in effect on the date of the renewal of the license, but not less than twenty-five dollars ($25) nor more than one hundred fifty dollars ($150). A delinquency, penalty, or late fee shall not be assessed until 30 days have elapsed from the date that the licensing agency mailed a notice of renewal to the licensee at the licensee’s last known address of record. The notice shall specify the date for timely renewal, and that failure to renew in a timely fashion shall result in the assessment of a delinquency, penalty, or late fee. In the event a reinstatement or like fee is charged for the reinstatement of a license, the reinstatement fee shall be 150 percent of the renewal fee for such license in effect on the date of the reinstatement of the license, but not more than twenty-five dollars ($25) in excess of the renewal fee, except that in the event that such a fee is fixed by statute at less than 150 percent of the renewal fee and less than the renewal fee plus twenty-five dollars ($25), the fee so fixed shall be charged.