File this form and all supporting documentation with the appraisal district office in each county in which the property is located generally between Jan. Download this form to apply for a residential homestead exemption.Bought a primary residence within the past year in Texas? It's time to file for your Texas Homestead Exemption. The typical deadline for filing a county appraisal district homestead exemption application is between January 1 and April 30. The typical deadline for filing a Collin County homestead exemption application is between January 1 and April 30. Collin County property owners can download homestead exemption applications and other related forms from the Collin CAD website. Collin County property owners can download homestead exemption applications and other related forms from the Collin CAD website. Download Texas appraisal district forms. Find forms to file a property tax exemption or file a protest along with other Texas appraisal district forms.