Disabled applicants must complete form DTE 105E,. The Homestead Declaration must be recorded with the County Recorder to be valid.Complete a homestead declaration form. Sign your declaration in front of a notary. Download PDF BOE-266 REV. To claim the exemption, the homeowner must make a one-time filing with the county assessor where the property is located. Welcome to the homestead estimated amount page for Single Family Detached homes for San Bernardino county. Edit, sign, and share homestead san bernardino county online. No need to install software, just go to DocHub, and sign up instantly and for free. The new California Homestead Exemption was introduced through AB 1885 on Sept 18, 2020.