By County Communications, County of San Diego Communications Office
Sep. 3, 2026 | 3:44 PM
Reading Time: 2 minutes
The County has launched a new online system that lets property owners file property tax assessment appeals quickly and securely. Residents can now submit, review and track their appeals online, anytime, from any device.
An assessment appeal allows property owners to request a review of the taxable value assigned to their property by the County Assessor.
When Residents Can File an Appeal
The regular filing season is from July 2 through Nov. 30. During that period, the Office of the Clerk of the Board accepts Assessment Appeals Applications from property owners.
To apply, property owners need:
Parcel or tax bill number
Property address
Their opinion of the property’s market value
How Online Filing Helps Residents
The new system streamlines the appeals process, reduces delays and offers more convenience than traditional paper applications.
With the new system, property owners can:
Submit an appeal form any device, including smartphones and tablets.
Track their appeal status anytime.
Sign up for updates without calling or emailing the office.
Keep their information secure through the online portal.
This upgrade supports the County’s ongoing effort to modernize public services and make them easier, faster and more accessible for all.
A New, Easier-to-Use Website
A redesigned Assessment Appeals website has launched alongside the new system. It features:
A simple, clean layout
Step-by-step instructions to reduce filing errors
Tutorial videos and helpful resources for first-time filers
A more streamlined filing experience through the new portal
What Happens After You File
Once your appeal is submitted:
The Clerk of the Board reviews the application and contacts the property owner if anything is missing.
When the application is complete, it is sent to the Assessor’s Office. An appraiser reviews the case and may request additional information.
An independent appeals board hears and decides the case. By law, the board has up to two years from your filing date to issue a decision.
Have questions? Contact the Clerk of Board of Supervisors’ office at AssessmentAppeals@sdcounty.ca.gov.
County Communications is a communications specialist with the County of San Diego Communications Office.
