Available Forms: Exemption Forms, Business Personal Property Forms, Other Forms, Human Resources. All forms require the Adobe Acrobat Reader plug-in.The forms listed below are PDF files. They include graphics, fillable form fields, scripts and functionality that work best with the free Adobe Reader. The general deadline for filing an exemption application is before May 1. To apply for an exemption contact your respective appraisal district to ask for an application. I'm going to show you how to file your homestead exemption in Dallas County Texas. New Homestead Exemption: Homestead Exemption Application for Property Owners 65 and over. File the 65 plus Homestead Exemption electronically. Veterans with qualifying service-connected disabilities are eligible for property tax exemptions.