For more information about the Homeowners' Exemption, please call (510) 272-3770. Address. 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. To qualify for the homeowners' exemption, the home must have been the principal residence of the owner as of January 1 of that tax year. Available forms of HOMEOWNER'S EXEMPTIONS on CAA e-Forms Service Center. Please contact our Office for more information on how to file for this exemption. Alameda Mortgage Corporation has filed a copy of Form 1098 with the IRS, and you should have received a copy in the mail earlier this year. Two forms of identification or proof of address. All participating households in the Housing Choice Voucher program are invited to download any of the forms below.