Section 81.12 — Excise Tax Act: Liability not affected

Liability under this Act for any tax, penalty, interest or other sum is not affected by an incorrect or incomplete assessment or by the fact that no assessment has been made. An assessment, subject to being varied or vacated on an objection or appeal under this Part and subject to a reassessment, shall be deemed to be valid and binding notwithstanding any irregularity, informality, error, defect or omission therein or in any proceeding under this Act relating thereto. No assessment shall be vacated or varied on an appeal by reason only of an irregularity, informality, error, defect or omission on the part of any person in the observance of any directory provision of this Act.