Supplemental Assessments Supplemental assessments are value adjustments required by law when a property: Changes ownership or Undergoes new construction Revenue and Taxation Code, Section 75, et seq. Purchases and Changes in Ownership A supplemental assessment implements a change in taxable value from the prior owner’s taxable value to the current...

Sometimes property owners may consider the assessed value to be high and need to contact the Assessor Department. We welcome the opportunity to answer any of your questions and explain your assessment. However, if after contacting the Assessor Department, your value concerns are not resolved, you can file a formal...

Annual Property Value Notices You may receive a Property Value Notice due to changes in ownership, new construction, or other activities to your property. Also, you may receive a notice if your Taxable Value has been temporarily reduced under Proposition 8, or if your Taxable Value has increased more than...

Instructions The Assessor Department's most requested forms are provided below. Print the form, fill it out, keep a copy for your records, and send it in. Additional forms not found on this webpage may be available on the California Assessors' e-Forms portal where you can access more forms . Most...