For other questions you may have, please contact the Office of the Tax Assessor-Collector at 210-335-2251 for personalized assistance. GENERAL INFORMATION: Property owners applying for a residence homestead exemption file this form and supporting documentation with the appraisal district in.What is a Homestead Exemption Cap? Use Form 8898 to notify the IRS that you became or ceased to be a bona fide resident of a US territory in accordance with section 937(c). This video covers how to fill out Texas Residential Homestead Exemption with a focus on Bexar County. A taxpayer must apply for a refund within three years of making the payment. To qualify for the over65 property tax exemption, a property owner must be 65 or older, and reside in the home as their principal residence.