In order to be timely, payment of taxes must be postmarked on or before January 31st. The Residential Homestead Exemption Form along with other forms used at the Bexar Appraisal District can be found on their website.GENERAL INFORMATION: Property owners applying for a residence homestead exemption file this form and supporting documentation with the appraisal district in. This video will cover how to fill out the homestead exemption form. You must apply with your county appraisal district to get a homestead exemption. Applying is free and only needs to be filed once. Property tax exemptions. Texas law provides a variety of property tax exemptions for qualifying property owners. Local taxing units offer partial and total exemptions. To apply for any of the homestead exemptions listed above, please complete and submit the Residence.