You must have owned the property as of January 1. Application deadline date is September 1st of the current year.Q1. NEW CLAIMS: Applicant has submitted copies of the following documents: ⃣. Letter describing specific use(s) and occupancy of the property. Application for Property Tax Exemption. To establish eligibility for property tax exemption, the claimant must sign and file an affidavit with the County. The deadline for filing for Homestead Exemption is April 1. You can complete your homestead exemption application online: Online Homestead Application. Qualifications: • Must be an un-remarried surviving spouse and a resident of Georgia. • Copy of Death Certificate.