Homeowners aged 65 years or older qualify for this exemption. All homeowners aged 65 years or older qualify for a standard $25,000 homestead exemption. Other than this, the Texas school districts offer a $10,000 exemption for qualifying homeowners aged over 65. An additional exemption of $3,000 is offered by many cities and counties as well. Get to know about the additional exemptions by contacting the appraisal district.