Utah Code Ann. § 59-1-1417
(1) In a proceeding before the commission, the burden of proof is on the petitioner except for determining the following, in which the burden of proof is on the commission:
(c) whether the petitioner is liable for an increase in a deficiency if the increase is asserted initially after a notice of deficiency is mailed in accordance with Section 59-1-1405 and a petition under Part 5, Petitions for Redetermination of Deficiencies, is filed, unless the increase in the deficiency is the result of a change or correction of federal taxable income:
(2) Regardless of whether a taxpayer has paid or remitted a tax, fee, or charge, the commission or a court considering a case involving the tax, fee, or charge shall:
Amended by Chapter 424, 2012 General Session