Alameda County Property Tax Appeal Guide
If your Alameda County, CA property is over-assessed, you can appeal to lower your tax bill. Here are the deadlines, filing steps, and how often appeals succeed.
- Appeal deadline
- Jul 2 – Sep 15
- Appeal success rate
- 40%
- Effective tax rate
- 0.78%
- How to file
- Assessment Appeals Board application
- Pre-fillable appeal form
- Available via TaxCheck
How to appeal your assessment in Alameda County
Compare your assessed value to recent comparable sales. If your home is assessed above market value, gather 3–6 comparable sales and file your appeal with Alameda County before the deadline. A well-documented appeal with strong comps has the best chance of a reduction.
Check if you are over-assessed
Upload your assessment notice for an instant comparable-sales analysis, an over-assessment estimate, and a pre-filled appeal.
Analyze my assessmentCA
For informational purposes only. Not legal, tax, or medical advice.