1) Claim for Disabled Veterans' Property Tax Exemption, form BOE 261-G. Please note, this claim form cannot be submitted until claimant occupies the residence.Where can I get the proper form to file for the exemption? There are also many other types of exemptions for veterans and disabled persons. Select the exemption for which you are applying. Last day to file an exemption claim for disabled veterans to receive. 90 percent of the exemption. Marriage Certificate. Home improvement, veterans home improvement, structural modification, HISA, HISA application, HISA grant.