Exemptions can reduce the taxable value of the property. You may file up to 4 exemptions.(d) A person who will be 65 years of age during the current assessment year shall be eligible to apply for the homestead exemption during that assessment year. Currently, the California homestead exemption is automatic, meaning that a homestead declaration does not need to be filed with the county clerk. In the event of a sale of homestead property, the homestead exemption shall remain in effect for the remainder of the assessment year of the sale. San Bernardino County.