If the county board reduces the valuation of any property, the assessor or the department may appeal the decision in the same manner prescribed in section 42-16111, Arizona Revised Statutes. The board shall deliver the roll to the county treasurer. The rate of tax to be extended and levied against the personal property for the entire taxable year is the rate applicable as of January 1 in the taxing jurisdiction where the property is located. The tax on unsecured personal property is a debt against the owner to whom the property is assessed and against the owner's successors and assigns. The taxes shown on the roll are considered to be delinquent thirty days thereafter.
Delinquent taxes bear interest at the rate of sixteen per cent per year simple.
For purposes of computing interest, a portion of a month is considered to be a full month. The county treasurer shall collect, issue receipts for and distribute the taxes in the same manner as other taxes. The treasurer shall perform all duties of collecting taxes on unsecured personal property for cities and towns. Sections 2 through 17 of this act are effective from and after December 31, 2000.