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. Property owners in Florida may be eligible for exemptions and additional benefits that can reduce their property tax liability. Q1. NEW CLAIMS: Applicant has submitted copies of the following documents: ⃣. Letter describing specific use(s) and occupancy of the property. To qualify, you must live in the home as your primary residence. When to file: Application for all exemptions must be made between January 1 and March 1 of the tax year. Homestead: This exemption can help homeowners reduce state property taxes and protect surviving spouses from creditors. With that said, not all disabled Veterans in Arizona will benefit from this new property tax exemption.