Disabled applicants must complete form DTE 105E,. The homestead exemption allows lowincome senior citizens and permanently and totally disabled Ohioans, to reduce their property tax bills.A homestead exemption application form ("DTE 105A") is available from the Ohio Department of Taxation. The Ohio Homestead Exemption allows low-income older adults and permanently and totally disabled Ohioans to reduce their property tax bills. Do you qualify for a Homestead Exemption tax break? Calculate how much you can expect to pay in property taxes on your home in Harris County, Texas. Compare your rate to the state and national average.