Homestead Exemption Form DTE 105A (PDF) Opens a New Window. Certificate of Disability for the Homestead Exemption Form DTE 105E (PDF) Opens a New Window.Disabled applicants must complete form DTE 105E,. If you own and live in a house in Fulton County, you may qualify for homestead exemption. To apply, complete the application form DTE 105A, Homestead Exemption Application Form. We encourage all applicants to file for homestead using our easy online e-File system. There is no easier way to file. Eligible homeowners may apply for the Homestead Exemption with their county auditor.