(b) Before a taxpayer may seek review by the district court or the board of tax appeals, the taxpayer shall secure the payment of the tax or deficiency as assessed by depositing cash with the tax commission in an amount equal to twenty percent (20%) of the amount asserted. In lieu of the cash deposit, the taxpayer may deposit any other type of security acceptable to the tax commission. No act, order or proceeding of the tax commission shall be valid until after the time allowed for taking such court action has expired or such court action is finally determined. As used in this section, the term "amount asserted" shall mean the total amount due, as set forth in the decision of the state tax commission.