Utah Code § 39A-6-111

An obligation or liability bearing interest at a rate in excess of six percent per year incurred by a service member in state military service before the service member's entry into state military service may not, during any part of the period of state military service, bear interest at a rate in excess of six percent per year unless, in the opinion of the court and upon application to the court by the obligee, the ability of the service member to pay interest upon the obligation or liability at a rate in excess of six percent per year is not materially affected by reason of the service member's service. The court may make any order in the action that, in the court's opinion, is just.