1. Except as otherwise provided by law, any person or entity shall have the right to appeal to the administrative hearing commission from any finding, order, decision, assessment or additional assessment made by the director of revenue. Any person or entity who is a party to such a dispute shall be entitled to a hearing before the administrative hearing commission by the filing of a petition with the administrative hearing commission within thirty days after the decision of the director is placed in the United States mail or within thirty days after the decision is delivered, whichever is earlier. The decision of the director of revenue shall contain a notice of the right of appeal in substantially the following language:

If you were adversely affected by this decision, you may appeal to the administrative hearing commission. To appeal, you must file a petition with the administrative hearing commission within thirty days after the date this decision was mailed or the date it was delivered, whichever date was earlier. If any such petition is sent by registered mail or certified mail, it will be deemed filed on the date it is mailed; if it is sent by any method other than registered mail or certified mail, it will be deemed filed on the date it is received by the commission.

2. The procedures applicable to the processing of such hearings and determinations shall be those established by chapter 536; provided that, any provision of law to the contrary notwithstanding, in any action before the commission arising under chapter 144, a seller may prove that a sale is exempt from taxation under such chapter in accordance with proof admissible under the applicable rules of evidence. The administrative hearing commission shall maintain a transcript of all testimony and proceedings in hearings governed by this section, and copies thereof shall be made available to any interested person upon the payment of a fee which shall in no case exceed the reasonable cost of preparation and supply. Decisions of the administrative hearing commission under this section shall be binding subject to appeal by either party. In the event the taxpayer prevails in any dispute under this section, interest shall be allowed at the rate of six percent per annum upon the amount found to have been wrongfully collected or erroneously paid except for taxes paid under protest and held by the director in a special deposit which shall be paid as specified by section 144.700. In any proceeding before the administrative hearing commission under this section the burden of proof shall be on the taxpayer except for the following issues, as to which the burden of proof shall be on the director of revenue:

(1) Whether the taxpayer has been guilty of fraud with attempt to evade tax;

(2) Whether the petitioner is liable as the transferee of property of a taxpayer (but not to show that the taxpayer was liable for the tax); and

(3) Whether the taxpayer is liable for any increase in a deficiency where such increase is asserted initially after the notice of deficiency was mailed and a protest filed, unless such increase in deficiency is the result of a change or correction of federal taxable income required to be reported by the taxpayer, and of which change or correction the director of revenue had no notice or knowledge at the time he mailed the notice of deficiency.