Financial calculators that actually know California
California has Prop 13’s assessment cap, Mello-Roos special taxes, and 58 counties that all bill differently. Generic calculators miss all of it. These don’t.
Free to use – no signup requiredTools
California-specific calculators
Each tool is built around California’s actual tax rules – Prop 13, Prop 19, and Mello-Roos – not national averages that may not apply to you.
California Property Tax Estimator
Estimate your annual California property tax based on purchase price, Prop 13’s 2% annual assessment cap, the homeowners’ exemption, and typical Mello-Roos and voter-approved debt add-ons by county.
Open calculatorProp 19 Base Year Value Transfer Calculator
See how much of your current assessed value you could carry over to a new home if you’re 55+, disabled, or a wildfire/disaster victim.
California Take-Home Pay Calculator
See your actual net paycheck after federal tax, California’s state income tax brackets, SDI, and FICA. California’s top rate is among the highest in the country.
California vs. Other States Tax Comparison
Compare your total tax burden living in California versus no-income-tax states like Texas, Florida, or Nevada.
Mello-Roos & Special Assessment Lookup
Check whether a property sits inside a Community Facilities District and estimate the added annual tax on top of the base 1% rate.
Senior & Disabled Property Tax Postponement Estimator
Check eligibility for California’s Property Tax Postponement Program and estimate how much of your bill could be deferred.
Guides
California property tax guides
Plain-language explainers to go along with the calculator above.
California Property Taxes Explained
How assessed value, the 1% base rate, and local add-ons combine to set your bill.
Proposition 13 Explained
How California caps assessed value growth at 2% a year – and why your bill rarely matches your neighbor’s.
California Property Tax Rates by County
Browse all 58 counties and jump straight to your estimate.
Why Does My Neighbor Pay Less Property Tax?
The purchase-year gap explained – and why it’s not a loophole, it’s the law.
Proposition 19 Explained
What changed for inherited homes and how base-year-value transfers work for older or disabled homeowners.
California Homeowners’ Exemption Guide
Who qualifies for the $7,000 assessed value exemption and how to file.
Mello-Roos Taxes Explained
What a Community Facilities District is and why two houses on the same street can owe very different amounts.
California Property Tax Appeal Guide
How to challenge an assessment you think is too high, and what evidence actually works.
Why California Money Tools
Built differently
California-specific by design
California’s property tax system runs on purchase price and Prop 13’s 2% cap, not market value – plus Mello-Roos, voter-approved bonds, and 58 counties that each add their own wrinkles. Most calculators ignore all of this.
Kept current
California exemption amounts, Prop 19 rules, and county rates change. Our tools are reviewed and updated to reflect current law.
No data collected
Everything runs in your browser. We never see your numbers, never store them, never ask for your email.
No fluff
Just the tool. No paywalls, no upsells, no required signups. Enter your numbers and get your answer.