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Assessment Appeals


Welcome to the County of Santa Clara, Clerk of the Board’s Assessment Appeals website. Assessment Appeals is an independent function, separate from the Assessor's Office, established to decide disputes on property assessed values between the Assessor's Office and property owners.

A separate application must be completed and filed for one type of assessment for each parcel of real property or each assessment of personal (unsecured) property for one tax year.

Starting 7/14/14, you can complete and submit your assessment appeal application (Application for Changed Assessment form) online by selecting the Appeal Online button below, register for a PIN to electronically sign, and add PDF attachments. The system will assist you in filling out your form accurately and completely. You will receive an appeal case number, and you can print your appeal application for your records.


Appeal Online

Value Hearing Officer Option

What is the difference between the Assessment Appeals Board and the Value Hearing Officer? 

The Appeals Board is a three-member panel and the hearings have a more formal courtroom atmosphere, while a hearing with the Value Hearing Officer is less formal.  The Value Hearing Officer is a real estate professional who hears residential valuation appeals.  Having your appeal scheduled before a Value Hearing Officer is considered an expedient and convenient alternative to the more formal Board proceedings, and may provide a faster resolution to your appeal. To choose this option when completing your application, check the "Yes" box in item #9 on the application. For more information click on the Value Hearing Officer Proceedings Brochure below.  

Language Interpretation Services​
Language interpretation services are available. For list of languages available visit For questions or additional information contact Assessment Appeals at 408-299-5088 or
Servicios de traducción disponible. Para listas de idiomas disponibles visita Para preguntas o información adicional contáctenos a Assessment Appeals al 408-299-5088 o 
Chúng tôi có cung cấp dịch vụ thông dịch qua điện thoại.  Quý vị có thế tham khảo danh sách các ngôn ngữ được thông dịch tạiĐể biết thêm thông tin hoặc cần được giải đáp thắc mắc, xin liên hệ Ban Kháng Cáo về Giá Thẩm Định (Assessment Appeals), số điện thoại 408-299-5088, hoặc địa chỉ email


Important Dates and Deadlines for Property Owners

January 1 - The lien date for the assessment of property on the assessment roll is 12:01 AM, on January 1 of each year.

February 15 - Legal deadline to file timely exemption claims for homeowner, veteran, disabled veteran, cemetery, church, college, and welfare exemptions.

April 1 - Deadline to file Business Property Statements.

April 10 - Last day to pay second installment of secured property taxes without penalty.

July 1 - Assessment Roll delivered to the County Controller.

August 31 - Last day to pay unsecured taxes without penalty.

July 2 - September 15 - Regular Filing Period – Timeframe for filing application appealing the Regular Assessment with the Clerk of the Assessment Appeals Board. Applications may include but are not necessarily limited to Decline in Value, Base Year Value, Personal Property, and Penalty Assessment appeals.

December 10 - Last day to pay first installment of secured property taxes without penalty, and deadline to file a late exemption for homeowners and veterans.


For More Information Please Contact:

County of Santa Clara Assessment Appeals Board
70 West Hedding Street
10th Floor, East Wing
San Jose, CA 95110
Phone: (408) 299-5088
Fax: (408) 298-8460​​​​​

elated Links


You may complete your assessment appeal application form (Application for Changed Assessment form) online by selecting the Create/Print Application PDF button below. The system will assist you in filling out your form accurately and completely. You must print and sign the application, include supporting documents and hand-deliver or mail to the Clerk of the Board’s office by the applicable deadline. A copy will not be saved online. Keep a copy of your application for your records.

Create/Print Application PDF