Homeowner Resources

Decline In Value Request Form


The Assessor-County Clerk-Recorder's Office, Assessor's Division is currently accepting Decline in Value applications for the 2015-16 tax year. The deadline to file Decline in Value applications is October 1, 2015.


Notice to San Mateo County Homeowners

Scam Targets San Mateo County Homeowners
Official Looking Notice Mailed to Property Owners Offering Lower Taxes

CARE Press Release, December 18, 2009


Did this property receive "Decline in Value Reassessment" for 2014-2015?

If YES - Stop. You DO NOT need to file again. Assessor will automatically review your property for 2015-2016.


Use this form to declare that your property value, as of January 1, has declined below assessed value and to request that it be reassessed for property tax purposes. Choose one of the three options below for filing the form:



E-mail the application to the Assessor's Division by completing the form and clicking "Send" below.


Mail the application to the Assessor-County Clerk-Recorder's Office,

                                               Assessor's Division

                                               555 County Center,

                                               Redwood City, CA 94063-1665.


Fax the application to the Assessor's Division at (650) 599-7456


Lookup your property tax statement. (Search by address.) Includes Assessor's Parcel Number and assessed value.


* Denotes required fields

Property Address: 
Assessor's Parcel Number (i.e. 000-000-000): 
Date of Purchase (i.e. mmddyyyy) :  
The current assessed value of this property is: $
My opinion of the market value, as of January 1, 2015 is: $

(The market value must be lower than the current assessed value to qualify for reassessment.)

As owner of the above referenced property, I hereby request that the assessed value be reviewed due to a decline in value.

My opinion of the current market value is supported by the following facts:


Mailing Address:
Daytime Telephone:
E-mail Address:

If you have additional factual information, such as an appraisal or comparable sales which support your claim, mail or fax it to:


Assessor-County Clerk-Recorder's Office,

Assessor's Division
555 County Center
Redwood City, CA 94063
Re: Decline in Value

Fax: (650) 599-7456

You may also email supporting PDF documents to assessor@smcare.org


Please note that this Decline in Value Request is an informal review by the Assessor.  In order to preserve your legal rights to appeal, you must file an "Application for Changed Assessment" which may be obtained from the Clerk of the Assessment Appeals Board (AAB) after July 1, and must be filed with the Clerk on or before November 30, 2015


If you do not hear back from the Assessor regarding your decline request before November 30, 2015, you must file an appeal with the Clerk to preserve your rights. If the Assessor does not approve your Decline in Value request, you may choose to file for an appeal with the Clerk on or before November 30, 2015, or reapply for an informal review next year.


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