Utah law requires that you notify the county when you have property on which you have claimed the homeowner's exemption to which you are no longer entitled. If the property is held in a trust and the current trust agreement is not on file with the Treasurer's Office, you must provide a copy of the trust.Typically, you'll need to fill out a homestead exemption application with your county tax office. Application for Exemption Instructions Details on how to fill out and mail your Property Taxation Exemption Form , PDF: Application for Exemption Property Tax. Summit County offers five different tax relief programs for county residents. Ada County Homestead Exemption Application Form, fill out to apply for exemption fill out on line and turn into the Assessors office. How do I file a homestead exemption in Utah? You can terminate the trust at any time (it is a revocable trust). Provide proof of established residency in the State of Utah. Need more information before filling out the forms?