Cal. Rev. & Tax. Code § 4709

Upon completion of the delinquent roll as prescribed by Section 2627, the auditor shall verify the total thereof against his or her accounts. The auditor shall similarly verify against his or her accounts the total of the list of tax-defaulted property furnished him or her after the declaration date by the tax collector as prescribed by Section 3442.

The auditor shall adjust the secured taxes receivable accounts for the total amount of any adjustments on the secured tax rolls for delinquent penalties and costs which are no longer receivable as of the sale date under Section 4102.