California has counties operating under Proposition 13 (1978) — the most distinctive property tax system in the US. Prop 13 caps annual AV growth at 2% and re-bases value only on sale or new construction, meaning long-term homeowners often pay rates far below the 1% statutory cap on current market value. Effective property tax rates run ~0.75% statewide median — among the lowest in the US despite high home values.
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This almanac covers 26 of 58 California counties.
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About this site's data and estimates. The Property Tax Almanac is an independent editorial reference. It is not affiliated with any government agency, tax assessor, or tax preparation service. The calculators and data on this site are informational and are not a substitute for advice from a qualified tax professional, attorney, or your official county assessor or appraisal district.
Accuracy, sources, and scope. Source years and review coverage vary. A record’s update date is not confirmation of its tax year. Reviewed guides identify their official sources and calculation limits; other records may have incomplete source documentation. See our methodology and review process.
How to use these estimates. Read the scope of each tool: it may use a representative district, a historical rate, or hypothetical inputs. County benchmarks are not a parcel-specific tax quote. Confirm the taxable value, taxing districts, applicable year, exemptions and additional charges with the responsible local office before relying on an estimate.
No legal or tax advice; no warranty. Nothing on this site constitutes legal, tax, financial, investment, or real estate advice. The Property Tax Almanac, its authors, and its publisher make no representations or warranties of any kind, express or implied, about the completeness, accuracy, reliability, suitability, or availability of the content on this site. Any reliance you place on the information is strictly at your own risk. We are not liable for any loss or damage — including without limitation, indirect or consequential loss or damage — arising from the use of this site or from decisions made based on its content.
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