Apply for homestead exemptions? Call the Tarrant Appraisal District at 817-284-0024.An eligible disabled person age 65 or older may receive both exemptions in the same year, but not from the same taxing units. Online Homestead Exemption Application. To apply for a homestead exemption, you will need to fill out an application form and submit it to your local appraisal district. It's a simple form to be filled out and mailed to the Tarrant Appraisal District. Fill out the appropriate application with your county of residence. Online Homestead Exemption Application. How do I file a homestead exemption? What is a homestead exemption?