A. On or before the tenth day of January of each year, the tax collector must attend at the office of the auditor with the assessment book or roll, having all items of taxes collected marked paid.

B. The auditor shall thereupon compute and enter against all the items of taxes due and unpaid the penalty for delinquency, foot up the total of penalties then due, and must within ten days thereafter deliver to said tax collector the assessment book or roll and charge him with the amount of said penalties.

C. In computing delinquent penalties, redemption penalties or interest, fractions of a cent shall be rejected. (Prior code § 6.04.630)