Homestead Exemption. The deadline to submit a homestead and all exemption applications is March 1 following the year of your home purchase.Homestead exemption applications may now be filed online! You should complete all required forms and applica ons for the exemp on and file them with your county property appraiser. What is Required When Filing for Homestead Exemption? Contact your local property appraiser if you have questions about your exemption. File the signed application for exemption with the county property appraiser. You must reside in the property as of December 31st and must file for homestead exemption on or before March 1st. This form is to be filed when a married couple agrees to designate percentage shares of the homestead assessment difference (Save Our Homes Cap). To qualify for homestead, you must meet the residency requirements and fill out a form from the Property Appraiser's office.