A completed Homestead Exemption Application showing the homestead address. Org within the property search.Generally, the deadline to file an application for an exemption is April 30. You must reapply if you qualify for additional exemptions based on age or disability in the future. In Texas, a disabled adult has a right to a special homestead exemption. If you qualify, this exemption can reduce your taxes substantially. An eligible disabled person age 65 or older may receive both exemptions in the same year, but not from the same taxing units. This form is used for several homestead exemptions, including: General Residence Homestead; Disabled Person To apply for this, you need to provide proof of age or disability. This should be filed with the county appraisal district.