(1) An authority with the approval of the municipal governing body may levy an ad valorem tax on the real and tangible personal property not exempt by law and as finally equalized in the downtown district. The tax shall not be more than 1 mill if the downtown district is in a municipality having a population of 1,000,000 or more, or not more than 2 mills if the downtown district is in a municipality having a population of less than 1,000,000. The tax shall be collected by the municipality creating the authority levying the tax. The municipality shall collect the tax at the same time and in the same manner as it collects its other ad valorem taxes. The tax shall be paid to the treasurer of the authority and credited to the general fund of the authority for purposes of the authority.

  (2) The municipality may at the request of the authority borrow money and issue its notes under the revised municipal finance act, 2001 PA 34, MCL 141.2101 to 141.2821, in anticipation of collection of the ad valorem tax authorized in this section.