California property tax appeal guide
AppealTax can help review your assessment, identify errors, organize comparable sales, and prepare a clearer challenge before the local appeal window closes.
Start by checking your Notice of Valuation and gathering your county property record.
California County Guides
Select your county or county-equivalent below for local property tax appeal guidance, basic deadline context, assessment-review steps, and residential tax-bill benchmarks.
Alpine County
Amador County
Butte County
Calaveras County
Colusa County
Contra Costa County
Del Norte County
El Dorado County
Fresno County
Glenn County
Humboldt County
Imperial County
Inyo County
Kern County
Kings County
Lake County
Lassen County
Los Angeles County
Madera County
Marin County
Mariposa County
Mendocino County
Merced County
Modoc County
Mono County
Monterey County
Napa County
Nevada County
Orange County
Placer County
Plumas County
Riverside County
Sacramento County
San Benito County
San Bernardino County
San Diego County
San Francisco County
San Joaquin County
San Luis Obispo County
San Mateo County
Santa Barbara County
Santa Clara County
Santa Cruz County
Shasta County
Sierra County
Siskiyou County
Solano County
Sonoma County
Stanislaus County
Sutter County
Tehama County
Trinity County
Tulare County
Tuolumne County
Ventura County
Yolo County
Yuba County
Statewide Residential Benchmark
A broad statewide benchmark for California is an effective property tax rate of about 0.74% of home value. On a $400,000 residential property, that equals about $2,960 per year. This is a statewide comparison point, not a guarantee of what any parcel will owe.
Basic statewide deadlines
California appeal windows move fast
California assessment appeal applications generally open July 2 and close September 15 or November 30, depending on the county.
Start by checking your Notice of Valuation and gathering your county property record.
Then confirm the current year’s instructions with your county assessor, local board, municipality, or state tax authority, especially if a deadline falls on a weekend or legal holiday.
Common questions
When is the California property tax appeal deadline?
California assessment appeal applications generally open July 2 and close September 15 or November 30, depending on the county. Confirm the exact current-year deadline with your local assessing office.
What should I gather first?
Gather your assessment notice, property record card, tax bill, exemption information, photos, repair estimates, and comparable sales.
Can AppealTax help with a California assessment review?
AppealTax can help review your assessment, identify errors, organize comparable sales, and prepare a clearer challenge before the appeal window closes.