You must apply with your county appraisal district to get a homestead exemption. Applying is free and only needs to be filed once.For information on values, to file for an exemption, or to report changes in ownership or address, please call the Appraisal District at 210-224-2432. Bought a primary residence within the past year in Texas? It's time to file for your Texas Homestead Exemption. This video will cover how to fill out the homestead exemption form. Property Tax Help Sessions. Discover how to lower your property taxes in Texas with this guide to homestead exemptions. The application for the exemption under Tax Code Section 11.132 is Form 50-114, Residence Homestead Exemption Application (PDF). Org, along with the required ID and documentation.