For the purpose of assessing taxes in the city for state, county, and school purposes, the city shall be considered the same as a township, and all provisions of state law relative to the collection of such taxes and the fees to be paid therefor, the accounting therefor to the appropriate taxing units, and the returning of property to the county treasurer of nonpayment thereof shall apply to the performance thereof by the Treasurer, who shall perform the same duties and have the same powers as township treasurers under state law. In the event that school taxes are collected at the same time as city taxes, they shall be collected subject to the same conditions and privileges as city taxes under the provisions of this charter.