California (CA) · Property Tax Appeal
How to Appeal Your Property Tax Assessment in California
File an Assessment Appeal Application (BOE-305-AH) with your county Assessment Appeals Board. The 2026 filing window opens July 2 in every county and closes September 15 in 11 counties or November 30 in the other 47, depending on when your assessor mails value notices (source: BOE Letter To Assessors 2026/023).
Filing Deadline
July 2 to September 15 or November 30, by county
Appeals Body
Assessment Appeals Board
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Property Tax Appeal by City in California
Property Tax Appeal by County in California
Alameda County
Alameda County Assessment Appeals Board
Deadline: July 2 to September 15
Butte County
Butte County Assessment Appeals Board
Deadline: July 2 to November 30
Calaveras County
Calaveras County Assessment Appeals Board
Deadline: July 2 to November 30
Del Norte County
Del Norte County Assessment Appeals Board
Deadline: July 2 to November 30
Fresno County
Fresno County Assessment Appeals Board
Deadline: July 2 to November 30
Kern County
Kern County Assessment Appeals Board
Deadline: July 2 to November 30
Los Angeles County
Los Angeles County Assessment Appeals Board
Deadline: July 2 to November 30
Madera County
Madera County Assessment Appeals Board
Deadline: July 2 to November 30
Marin County
Marin County Assessment Appeals Board
Deadline: July 2 to November 30
Mendocino County
Mendocino County Assessment Appeals Board
Deadline: July 2 to November 30
Mono County
Mono County Assessment Appeals Board
Deadline: July 2 to September 15
Napa County
Napa County Assessment Appeals Board
Deadline: July 2 to November 30
Sacramento County
Sacramento County Assessment Appeals Board
Deadline: July 2 to November 30
San Diego County
San Diego County Assessment Appeals Board
Deadline: July 2 to November 30
San Francisco County
San Francisco Assessment Appeals Board
Deadline: July 2 to September 15
San Joaquin County
San Joaquin County Assessment Appeals Board
Deadline: July 2 to November 30
San Luis Obispo County
San Luis Obispo County Assessment Appeals Board
Deadline: July 2 to September 15
San Mateo County
San Mateo County Assessment Appeals Board
Deadline: July 2 to November 30
Santa Clara County
Santa Clara County Assessment Appeals Board
Deadline: July 2 to September 15
Santa Cruz County
Santa Cruz County Assessment Appeals Board
Deadline: July 2 to November 30
Siskiyou County
Siskiyou County Assessment Appeals Board
Deadline: July 2 to November 30
Solano County
Solano County Assessment Appeals Board
Deadline: July 2 to November 30
Sonoma County
Sonoma County Assessment Appeals Board
Deadline: July 2 to November 30
Sutter County
Sutter County Assessment Appeals Board
Deadline: July 2 to November 30
Tehama County
Tehama County Assessment Appeals Board
Deadline: July 2 to November 30
How to Appeal Your Property Taxes in California
1. Gather evidence
Your current assessed value vs. recent sales of comparable properties in your neighborhood.
2. File your protest
Submit to the Assessment Appeals Board by July 2 to September 15 or November 30, by county. Late filings are typically rejected.
3. Attend your hearing
Present your comps and letter. Most hearings are brief. Many are resolved before the hearing date.
Deadlines and procedures change. Always verify with your county assessor or Assessment Appeals Board before filing. This is not legal advice.