What is an Assessment Appeal in California?
An assessment appeal is a formal process where a California property owner
disputes the assessed value of their property as determined by the county
assessor. This value determines your property taxes.
Why File an Assessment Appeal?
- The assessed value is higher than market value.
- There are errors in the property description (e.g., incorrect square
footage or features).
- You were incorrectly assessed under Proposition 13, Proposition 8, or due
to new construction rules.
Who Handles the Appeal?
The appeal is reviewed by the county’s Assessment Appeals Board (AAB) or a
Hearing Officer, who are independent from the Assessor’s Office.
When to File?
- During the annual filing period, typically:
- July 2 to September 15 in most counties
- July 2 to November 30 in some counties (e.g., Los Angeles)
- Or within 60 days of receiving a supplemental or escape assessment notice
How to File?
- Submit an application (Form BOE-305-AH) from the county website
- Include a filing fee if required
- Provide evidence (e.g., appraisals, comparable sales, photos)
What Happens Next?
- You may be scheduled for a hearing
- Both you and the Assessor present your evidence
- The board or officer makes a decision
- If successful, your taxes may be reduced and you could receive a refund
Tip: Check with your specific county for exact deadlines and forms.