Missouri Code of State Regulations
Title 12 - DEPARTMENT OF REVENUE
Division 30 - State Tax Commission
Chapter 2 - Original Assessment
Section 12 CSR 30-2.021 - Original Assessment by State Tax Commission and Appeals

(A) Each company shall file its report with the State Tax Commission on or before April 1 of each year. Upon receipt of the report, the commission shall certify a tentative assessment to the company. The commission shall set a date upon which an informal hearing will be conducted for the company. At the hearing, the company shall be permitted to submit to the commission evidence and exhibits indicative of the value of the subject property;

(B) Subsequent to the proceedings set out in subsection (1)(A), the commission shall certify a final assessment to the company. The commission shall have the authority to amend a certified final assessment which it deems to be erroneous, or pursuant to section 155.040.3, RSMo, certify the value of commercial aircraft not owned by an airline company, but no such amendment or certification shall be made after September 1 of the tax year in question. Such erroneous assessments shall not include disagreements over valuation, classification, or exemption, which must be addressed through the appeal process. Upon receipt of the final assessment, the company, if dissatisfied, shall file a petition for a rehearing, which shall be decided as a contested case, after hearing on the record;

(C) The petition shall be directed to the State Tax Commission. It shall state that the appeal is from the original assessment entered by the commission; the date of the assessment; the name of the taxpayer appealing; the business address of the taxpayer to which notice of hearing may be mailed; a brief statement of why the commission should change or modify the original assessment; and a brief statement of the relief to which complainant may feel entitled. The petition shall be sworn to by the complainant or his/her attorney;

(D) The petition for rehearing shall be filed not more than thirty (30) days after the company receives notice of the original assessment. The petition shall be served upon the commission by delivery, personally, to any commissioner or to the secretary of the commission or by registered mail, postage prepaid, addressed to the State Tax Commission at Jefferson City, Missouri. If personal service is made, it may be proven by the affidavit of any person competent to testify or by the official certificate of any officer authorized under the laws of Missouri to execute process. If the petition is served by mail, it shall be filed as of the date of its delivery by the postal authorities, to the office of the State Tax Commission in Jefferson City, Missouri;

(E) Discovery in appeals shall be as in other contested cases pursuant to 12 CSR 303.040;

(F) An assistant attorney general will assist the commission at the hearing and in preparing the decision. The commission's staff attorneys will assist commission staff in presentation of the case; and

(G) The State Tax Commission shall set the matter for hearing at the office of the State Tax Commission, Jefferson City, Missouri, within a reasonable time after that, and notify the complainant and the proper state officer of the date. The notice shall be given to the complainant by first-class mail, postage prepaid, addressed to the complainant's place of business as given the petition filed.