Each person making such a return as required by Section 183.04 of this chapter shall at the time of making the same pay the amount of taxes shown thereby to the Finance Director, and if the tax, or a portion thereof, imposed by this chapter is not paid when due, there shall be added, as a part of the unpaid tax, interest at the rate of one percent per month from the time when the tax became due until paid.
(Ord. 106. Passed 5-14-57.)