Disabled applicants must complete form DTE 105E,. A homestead exemption application form ("DTE 105A") is available from the Ohio Department of Taxation.The homestead exemption allows lowincome senior citizens and permanently and totally disabled Ohioans, to reduce their property tax bills. Are you 65 or older? Are you under 65 and disabled? This allows senior citizens (65 or older) as well as permanently and totally disabled homeowners to reduce their real estate taxes. To apply, complete the application form DTE 105A, Homestead Exemption Application Form. What do I bring with me to apply for the Homestead Exemption Program? Become an independent operator. Be your own boss and love what you do day in and day out.