File this form and all supporting documentation with the appraisal district office in each county in which the property is located generally between Jan. This video will cover how to fill out the homestead exemption form.You must apply with your county appraisal district to get a homestead exemption. Applying is free and only needs to be filed once. The general deadline for filing an exemption application is before May 1. To apply for the exemption, homeowners must submit a completed application to their county appraisal district. The regular filing deadline is February 15th to receive the full exemption. An owner may only file one homestead exemption, and the application must be filed with the Appraisal District in the county the property is located in. An owner may only file one homestead exemption, and the application must be filed with the Appraisal District in the county the property is located in. A new owner will automatically receive an exemption claim form in the mail and there is no cost to file.