About

California Property Tools is a simple, fast, free California property tax calculator. It improves on generic calculators by using your purchase price and purchase date together with the official historical Proposition 13 inflation factors and a county-level estimated tax rate — rather than assuming a flat 2% increase every year.

The calculator itself runs entirely in your browser. No account, login, address lookup, or database is required, and your financial inputs — your purchase price and any assessed value you enter — are never sent to a server. The site is free and supported by ads; see our Privacy Policy for how we use cookies for analytics and advertising.

What it is not

This is an educational estimate, not an official assessment, tax bill, or financial advice. For the precise figures on your property, consult your county assessor and your annual tax bill. See the methodology for data sources and assumptions.

Contact

Questions, corrections, or feedback about California Property Tools? Email the site administrator at mail [at] californiapropertytools.com. We read every message, though we can't provide individualized tax or legal advice.