Any municipality may impose an excise tax on contractors gross receipts in a similar manner as imposed by this chapter; provided however, that the same shall be adopted in conformity with chapter 10-52 and the rate thereof shall not exceed one-half percent. Municipalities that have a non-ad valorem tax in effect as provided for in chapter 10-52 may not continue the tax imposed by this section on or after April 1, 1980.
SDCL 10-46B-9