Disabled applicants must complete form DTE 105E,. Must complete and submit DTE Form 105H, Addendum to the Homestead Exemption Application for Senior Citizens, Disabled Persons and Surviving Spouses.Contact your county Auditor or visit their website. Determine your home's current market value. To apply, complete the application form DTE 105A, Homestead Exemption Application Form. The Homestead Exemption application can be filled out at the county auditor's office in which the property is located. Show All Answers. 1. New Homestead applicants are subject to an income means test. Now you can file for the Homestead Exemption using our NEW SmartFile Paperless web-based filing system! To apply for the Homestead Exemption please fill out the application and mail it to our office at 231 Main Street.