This claim may be used to file for the Homeowners' Exemption for the Assessment Roll and the Supplemental Assessment Roll. 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. If you desire to claim an exemption, please fill out the Business Tax Exemption Form (must have active business tax account to apply). Only DAFP can grant exemptions to using the guidelines in this handbook for any new decisions rendered after issuance. C Obsolete Material. The following amendments to Part 115,. This Video Shows you How to Complete an Application for Homestead Exemption.