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Interactive Tool · California Inherited Property

Proposition 19
Calculator

Will Prop 19 trigger property tax reassessment on your inherited California home? This calculator gives you an educational estimate of your new property tax bill under the parent-child transfer exclusion.

Educational estimate only. This calculator provides a general estimate based on average California property tax rates and does not determine your actual eligibility for the Proposition 19 exclusion. Actual outcomes depend on your specific facts, county practices, and any applicable exemptions or special assessments. Consult a CPA or attorney for guidance specific to your situation.
Estimate Your Prop 19 Impact

A few quick questions. Results in seconds.

This calculator is built for the parent-child exclusion only. Grandparent-grandchild and other transfers have additional requirements this tool does not model.
The family-home exclusion generally only applies to the transferor's principal residence, not a rental, vacation home, or other investment property.
For an inheritance resulting from a parent's death, this is generally the property's fair market value as of the date of death. If you don't know it, enter your best estimate for illustration only.
Find this on the property's most recent tax bill. This is different from the property's income-tax basis, which is a separate concept.
Your Estimate
Annual property tax before death ,
New annual property tax (after Prop 19) ,
Annual increase ,
Monthly tax increase ,
5-year additional tax cost ,
10-year additional tax cost ,
What This Means
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How This Calculator Works

For a qualifying parent-child transfer of a family home, the applicable value threshold is generally the parent's factored base year (taxable) value plus $1,044,586, for transfers occurring from February 16, 2025 through February 15, 2027. If the property's fair market value at the time of transfer exceeds that threshold, the excess is generally added to the transferred taxable value. If you don't make the property your primary residence, it's generally reassessed to current market value.

Eligibility depends on additional requirements, including the nature of the property, the relationship between the parent and child, principal-residence requirements on both sides of the transfer, and required filings with the county assessor. For illustration, this calculator estimates property tax using a 1.1% rate; actual rates vary by location and may include voter-approved indebtedness, special assessments, Mello-Roos, and other charges.

What This Means

Proposition 19 can materially change the annual carrying cost of an inherited California home. This estimate is meant to help you understand the potential magnitude of that change. It does not determine whether keeping, renting, buying out another heir, or selling the property is the better financial decision, that depends on your income-tax basis, anticipated appreciation, rental income, financing, maintenance and insurance costs, transaction expenses, and your individual circumstances.

If you're trying to decide between keeping or selling, read our complete decision framework for inherited California homes.

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