DCAD is pleased to provide this service to homeowners in Dallas County. The following forms or information may be downloaded from this page: Exemption Forms.GENERAL INFORMATION: Property owners applying for a residence homestead exemption file this form and supporting documentation with the appraisal district in. The typical deadline for filing a county appraisal district homestead exemption application is between January 1 and April 30. How do I apply for a homestead and over 65 tax exemption for my residence? A completed exemption application form must be filed with the district prior to May 1st. That should have a "Print Homestead Exemption Form" hyperlink. The general deadline for filing an exemption application is before May 1. Download the homestead exemption application form from the Dallas County Appraisal District website. Complete the application form.