Each county auditor, after receiving from the Comptroller General and from such other officers and authorities as are legally empowered to determine the rate or amount of taxes to be levied for the various purposes authorized by law statements of the rates and sums to be levied for the current year, shall forthwith proceed to determine the sums to be levied upon each tract and lot of real property and upon the amount of personal property, monies, and credits listed in his county in the name of each person, which must be assessed equally on all real and personal property subject to such taxes and set down in one or more columns in the manner and form as the Comptroller General shall prescribe. The Department of Revenue or the county auditor shall place a minimum assessment of at least twenty dollars on all personal property that generates a tax bill, unless a higher minimum assessment is otherwise required by law.