Disabled applicants must complete form DTE 105E,. Those applicants must be age 65 or turn 65 during the year following the year in which they apply.Douglas County has additional exemptions. Tax Estimator calculates an estimated annual property tax amounts based on current tax rates and a property valuation you specify. To amend sections 323.152 and 4503.065 of the Revised Code to increase the amount of and expand the income qualifications for the homestead exemption. Learn which national parks charge fees and how much it costs at each park. Friends of the Peaks Club. Have questions about the National Park Foundation?