FOR COUNTY AUDITOR'S USE ONLY: Taxing district and parcel or registration number. Auditor's application number.Complete the application. A homestead exemption application form ("DTE 105A") is available from the Ohio Department of Taxation. The application filing period is from January 1st through December 31st. How to Apply for Homestead Exemption in Ohio. In 1970, Ohio voters approved a constitutional amendment permitting a Homestead Exemption that reduced property taxes for lower income senior citizens. To apply for the Homestead Exemption please fill out the application and mail it to our office at 231 Main Street. , Suite 1A, Chardon, Ohio 44024. Show All Answers. 1.