Serving All California Homeowners & Real Estate Investors
Why California Homeowners Choose Us
β Prop 8 Decline-in-Value Case β built from current market sales comparables
β We Check First β if your assessment already looks fair, we tell you
β Your County's Form and Window β filing runs July 2 to your county's fall deadline
β Evidence You Can Present β the report is written to be read at an Assessment Appeals Board hearing
β $129 Per Property β flat, per tax year
Each year, California homeowners receive property tax assessments that often don't reflect true market value.
Errors, outdated data, or missed condition issues can lead to inflated property taxes β but you have the right to appeal your assessment.
If you've inherited California property, Proposition 19 may have changed your tax picture dramatically. Learn how Prop 19 affects inherited property in 2026 β including the one-year move-in rule and what to do if the property was already reassessed.
TaxDrop makes the process fast and accurate.
We check comparable sales and county data to find over-assessments, and our licensed tax consultants handle every step of the appeal process. Learn more about how TaxDrop works.
Select your county below to view local deadlines, assessor details, and how TaxDrop can handle your appeal.
We serve all 58 California counties, including:
California hears this as a Proposition 8 decline-in-value claim (Cal. Rev. & Tax. Code Β§51): when market value on the January 1 lien date falls below the Prop 13 factored base, the assessor must enrol the lower figure. There is no unequal-appraisal ground in California β that is a Texas and Georgia remedy.
Sales in the same building and immediate blocks supported a value of $650,000:
The assessment implied $837 per square foot against a $615β$669 range supported by actual sales.
This one went to a hearing, not a settlement. The owner presented the evidence herself and the board agreed β a $110,080 reduction, refunded. California appeals are filed with your county board between July 2 and your county's fall deadline, and are argued on the January 1 lien-date value rather than today's market. Read the full case study.
They're based on your home's assessed value (capped by Prop 13 at a 2% annual increase) times your county's tax rate, usually around 1%. Read our 7 California property tax strategies for ways to reduce your bill.
Appeal windows usually run July 2 β November 30, depending on your county. Check our California appeal deadline guide for details.
You'll need to wait for the next assessment year β but TaxDrop can help you prepare early. Sign up now and we'll notify you when it's time to file.
Yes, we handle residential and commercial appeals statewide. See our apartment complex, retail, and office building pages for details.
Most counties finalize within 60β120 days, depending on review volume. Learn more about how the California appeal process works.
Under Proposition 19, heirs can only keep their parents' low property tax base if they move into the inherited home as their primary residence within one year. Otherwise, the property gets reassessed at current market value β and tax bills can jump 10β15x overnight. Read our complete Prop 19 inheritance guide for everything heirs need to know.