The exemptions apply only to property that you own and occupy as your principal place of residence. If you would rather fill out the form you can download it here.Complete Form Online. The typical deadline for filing a Collin County homestead exemption application is between January 1 and April 30. Contact Information. GENERAL INFORMATION: Property owners applying for a residence homestead exemption file this form and supporting documentation with the appraisal district in. Org or call 469-742-9200. Collin County homeowners can download a homestead exemption application here. No information is available for this page. IMPORTANT: Please complete this information in addition to the Application for Residential Homestead Exemption.