Section 15-51-109 - Deficiency assessment - review - penalty and interest(1) If the department determines that the amount of tax due is greater than the amount disclosed by a return, it shall mail to the taxpayer a notice, pursuant to 15-1-211, of the additional tax proposed to be assessed. The taxpayer may seek review of the determination pursuant to 15-1-211.(2) Penalty and interest must be added to any deficiency assessment as provided in 15-1-216.En. Sec. 1, Ch. 14, L. 1983; amd. Sec. 20, Ch. 811, L. 1991; amd. Sec. 34, Ch. 427, L. 1999; amd. Sec. 30, Ch. 594, L. 2005.