File this form and all supporting documentation with the appraisal district office in each county in which the property is located generally between Jan. Illinois veterans and persons with disabilities may be eligible for tax relief through the property tax homestead exemptions and mobile home exemptions.Texas property tax homestead exemption who qualify for primary residence! Free form, no cost to file; save hundreds or thousands annually. EX01: Homestead Exemption Application (First time applications only). Click "Begin Filing" and follow the instructions. Find out which exemptions automatically renew. Use WCAD's online exemption form for quicker filing and expedited processing time. Do not file this document with the Texas Comptroller of Public. Accounts. Some lenders, such as Homestead Financial Mortgage, may require you to fill out form PTAX342 before closing.