To receive the 100 percent disabled veteran exemption, you may file for the exemption up to five years after the delinquency date for the taxes on the property. To receive a disabled veteran exemption, you must either be a veteran who was disabled while serving with the US armed forces or the surviving spouse or child.Texas offers a partial property tax exemption for partially disabled Veterans. For the 100 Percent Disabled Veteran exemption, you'll use the Application for Residence Homestead Exemption (Form 50114).