Alameda County, California
Filing deadline: September 15 (earliest possible)
Appeals of regular assessments must be filed between July 2 and September 15. If the county Assessor does not mail assessment notices to all taxpayers by August 1, the filing period is extended to November 30 instead of September 15 (California Revenue & Taxation Code Section 1603).
What to file
appeal
Approximate effective tax rate
1.20% (published estimate, 2025)
County filing fee
$50
Look up your current assessed value on the county assessor's site →