Q1. NEW CLAIMS: Applicant has submitted copies of the following documents: ⃣. Letter describing specific use(s) and occupancy of the property.Application deadline date is September 1st of the current year. Application for Property Tax Exemption. To establish eligibility for property tax exemption, the claimant must sign and file an affidavit with the County. The homestead exemption also does not protect a person against liens resulting from child support or spousal maintenance arrearages. Requires a Medical Certificate from an Arizona licensed physician, form available from the Assessor's office during exemption enrollment. If you're over age 65 in Arizona and are on a fixed income, you may be eligible to significantly reduce your property tax bill. To qualify, you must live in the home as your primary residence.