450.63  Maturity of tax — interest — penalty.
  All taxes not paid within the time prescribed in this chapter are subject to a penalty as provided in section 421.27 and shall draw interest at the rate in effect under section 421.7 until paid.
[S13, §1481-a23; C24, 27, 31, 35, 39, §7368; C46, 50, 54, 58, 62, 66, 71, 73, 75, 77, 79, 81, §450.63; 
81 Acts, ch 131, §16
, 
ch 147, §11, 20
; 
82 Acts, ch 1180, §7, 8
]
84 Acts, ch 1173, §9
; 
86 Acts, ch 1007, §39
; 
90 Acts, ch 1172, §13