Generally, the deadline to file an application for an exemption is April 30. This video covers how to fill out Texas Residential Homestead Exemption with a focus on Bexar County.An eligible disabled person age 65 or older may receive both exemptions in the same year, but not from the same taxing units. Bexar County Appraisal District representatives will also be present and answer your individual questions and help you complete your exemption form. A homestead exemption allows homeowners who live in their home to reduce its taxable value, with some exemptions available only to seniors or disabled people. You can only apply for a residential homestead exemption on property you owned January 1st of this year. Fill out the application completely. The homeowner must apply before the first anniversary of their qualification date to receive the exemption in that year. If the home is in San Antonio, that would be Bexar Appraisal District. You can send in the application via email, mail or fax.