To claim the exemption, the homeowner must make a one-time filing with the county assessor where the property is located. Complete a homestead declaration form.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. All homeowners automatically have a homeowner's exemption, which protects part of their equity from involuntary sales (foreclosures). Ohio Property Taxes. Standardized forms are available at the Assessors' Office and should be filled out and returned to the Assessors. File Electronically. Before you fill out a paper form, consider these reasons why you should file electronically using NJ E-File or New Jersey Online Filing:.