Application for Property Tax Exemption. To establish eligibility for property tax exemption, the claimant must sign and file an affidavit with the County.Requirements for Widow or Widower's Exemption. Applicants must provide a driver's license. You are not required to have a Driver's license to get the homestead tax credit. To get the tax credit the property has to be homeowner occupied. In these instances, there is no property-ownership requirement to qualify for exemption. Many properties in this category are leased to be used for a qualifying. Required proof: Driver's License, Vehicle Registration or Voter's Registration. The Arizona homestead exemption is automatic, meaning that no written claim is required.