How to Complete the Application. Fill out the other side of this application completely.A completed Homestead Exemption Application showing the homestead address. Proof of disability, for those who are applying for an exemption due to disability. No information is available for this page. Using the HCAD app to file your Homestead Exemption. Don't waste time filling out and mailing the paper HCAD homestead exemption form! You may file a late application for a residence homestead exemption, including age 65 or older or disabled, up to two years after the delinquency date. A Texas homeowner qualifies for a county appraisal district over 65 exemption if they are 65 years of age or older. This exemption is not automatic.