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! This form is to be filed when a married couple agrees to designate percentage shares of the homestead assessment difference (Save Our Homes Cap). Contact your local property appraiser if you have questions about your exemption. File the signed application for exemption with the county property appraiser. Fill out a petition form online or in person. What is Required When Filing for Homestead Exemption? The assessed value between zero and 25 000 is fully exempt from property taxes if you qualify for homestead. The foremost among these changes was sending notices to taxpayers inviting them to file for homestead exemption.