How to appeal a Ventura County, CA property assessment
✓ Verified — Last verified October 24, 2026
Filing details published for Ventura County. Match the notice and assessment cycle to the official instructions.
Official appeal instructionsNot tax or legal advice; confirm with your county.
Filing timing
Notice-dependent instructions
Regular assessment appeals: July 2–September 15; if September 15 falls on a weekend, the following Monday. Supplemental, roll-change and escaped assessment appeals: within 60 days of notice mailing or postmark, whichever is later.
Official source. Verified .
Where to file
Clerk of the Ventura County Assessment Appeals Board.
Official source. Verified .
Official offices
Ventura County Assessor
Sources for these instructions
https://s48024.pcdn.co/county-executive-office/clerk-of-the-board/filing-your-assessment-appeal/
Filing dates are July 2 through September 15. If September 15 falls on a weekend, you will have until Monday, at 5:00 p.m. Applications mailed on the last day of the filing period, must be postmarked that day to be considered as timely filed. An application must be filed within 60 days of the mailing date printed on the notice of assessment, or its postmark, whichever date is later.
Verified October 24, 2026
https://s48024.pcdn.co/county-executive-office/clerk-of-the-board/filing-your-assessment-appeal/
The Clerk of the Assessment Appeals Board is the intermediary in the Assessment Appeal process. They receive Assessment Appeal Applications from taxpayers seeking a reduction in property value assessments
Verified October 24, 2026
https://s48024.pcdn.co/county-executive-office/clerk-of-the-board/filing-your-assessment-appeal/
Filing Your Assessment Appeal
Verified October 24, 2026
Continue with your property
Common questions
Where do I file a Ventura County assessment appeal?
Clerk of the Ventura County Assessment Appeals Board.
Updated , from cited verification dates. Individual sources may have earlier checks.