Residence Homestead Exemption. Age 65 or Older Homestead Exemption.Generally, the deadline to file an application for an exemption is April 30. Residence Homestead Exemption Application (includes Age 65 or Older, Age 55 or Older Surviving Spouse, and Disabled Person Exemption). You must apply with your county appraisal district to get a homestead exemption. Applying is free and only needs to be filed once. I'm going to show you how to file your homestead exemption in Dallas County Texas. Homestead owners aged 65 or older, disabled persons, military veterans, and surviving spouses may also be eligible for further exemptions. Qualifying individuals must submit an application in order to receive the homestead exemption. This exemption offers a reduction in the taxable value of your primary residence.