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. Bought a primary residence within the past year in Texas? It's time to file for your Texas Homestead Exemption. Most counties have the homestead exemption form online. Applying for the homestead exemption is FREE and easy. An Application for Exemption from Real Estate Taxation form is available on the tax forms page. Other Exempt Property.