Click here to download the historic property exemption application form (PDF format). For more info about the Historic Property Exemption, please contactF. Owner must submit proof of financial capability. G. The application package must be complete. Contact your local property appraiser if you have questions about your exemption. File the signed application for exemption with the county property appraiser. Sign and date the application (Step 6). Going over how to properly fill out your homestead tax exemption. This one is primarily for the Dallas County residents. The Residence Homestead Exemption Application (Form 50-114) for your county appraisal district.