(1) As soon as practicable after an amount payable under this chapter is deemed assessed under s. 220.703 or any other provision of this chapter, the department shall give notice of the amount unpaid to each taxpayer liable for any unpaid portion of such assessment and shall demand payment thereof. The amount stated in such notice shall be payable upon receipt of such notice, at the place and time stated in such notice. (2) No notice and demand need be issued when a deficiency has been determined by a proceeding in court for review of an assessment.
