Delinquency dates for real property taxes--Interest

On May first of the year after which taxes have been assessed, one-half of all unpaid real property taxes are delinquent. However, all real property taxes totaling fifty dollars or less shall be paid in full on or before April thirtieth. On May first and the first day of each month thereafter there shall be added as interest on the delinquent taxes at the Category G rate of interest as established in §