Disabled applicants must complete form DTE 105E,. A homestead exemption application form ("DTE 105A") is available from the Ohio Department of Taxation.Now you can file for the Homestead Exemption using our NEW SmartFile Paperless web-based filing system! Lake County Homestead Exemption. The application filing period is from January 1st through December 31st. This can provide asset protection from creditors for at least some of house's value. I think I qualify; how do I apply? Please enter a search term. Basemap. Basemap Gallery. Options. Close.