To claim the exemption, the homeowner must make a one-time filing with the county assessor where the property is located. Complete form BOE-266, Claim for Homeowners'.Property Tax Exemption. Buy a declared homestead form from an office-supply store, or download a form from the Registrar-Recorder's website. Information and forms are available from the Sacramento ​County Public Law Library​. Blank forms may also be available at office supply stores. Requirements. You must also file the appropriate exemption claim form with the Assessor. There are two, basic, alternative ways that persons qualify for this exemption: A Declaration of Homestead must be completed, signed, and notarized, in order to be recorded in the Clerk-Recorder's Office.