Homestead Exemption Form DTE 105A (PDF) Opens a New Window. On the page entitled "Application for Fulton County Homestead Exemption," click on the link titled "Begin Filing.Disabled applicants must complete form DTE 105E,. A homestead exemption is a legal provision that helps to reduce the amount of property taxes on owner-occupied homes. The home must be your primary residence. Are you 65 or older? Are you under 65 and disabled? To apply, complete the application form DTE 105A, Homestead Exemption Application Form. Calculate how much you'll pay in property taxes on your home, given your location and assessed home value. Compare your rate to the Ohio and U.S. average.