Buy a declared homestead form from an office-supply store, or download a form from the Registrar-Recorder's website. The residential homestead exemption application is located on our website tadd.Org under forms then homestead exemption. After you have created your online account and gathered the required documents necessary to qualify for the exemption that you are applying for. You may file a late application for a residence homestead exemption, including age 65 or older or disabled, up to two years after the delinquency date. To claim the exemption, the homeowner must make a one-time filing with the county assessor where the property is located. This Video Shows you How to Complete an Application for Homestead Exemption. We strive to process exemptions as quickly as possible, but at times processing could take up to 90 days to process, per Texas Property Tax Code Section 11.45. Application process: To apply, complete the Homeowners' Exemption application form and submit it to your local county assessor's office. Homestead Exemption in Texas.