Prop 19 Inherited Property Tax Calculator
See whether the current $1,044,586 exclusion fully shelters an inherited family home from reassessment — and your new assessed value if it doesn't.
Since Prop 19, an inherited primary residence keeps its low tax-assessed value only up to the parent's factored base year value plus a $1,044,586 exclusion (current through 2027-02-15). The child must also move in as their own principal residence, generally within a year. Rental, investment, and vacation properties don't qualify for this exclusion at all.
Enter the numbers from the parent's tax bill and the property's value at transfer to see your outcome.
Prop 19 Inherited Property Calculator
Your Prop 19 Result
How this is calculated
First, the exclusion only applies at all if the home was the parent's principal residence and the child makes it their own principal residence (generally within a year of transfer) — rental, investment, and vacation properties are reassessed to full market value with no exclusion whatsoever, regardless of any other factor.
If both residency conditions are met, the tool compares the fair market value at transfer to the parent's factored base year value plus the current $1,044,586 exclusion. If market value doesn't exceed that combined figure, the property keeps the parent's original low assessed value — no reassessment at all.
If market value exceeds it, the new assessed value becomes the base year value plus the excess over the exclusion (base year value + (market value − base year value − exclusion)) — not a jump straight to full market value. The exclusion cap itself is adjusted every two years; the current $1,044,586 figure is locked in through 2027-02-15, with the next adjustment expected around 2027-02-16.
Frequently Asked Questions
What is the Prop 19 inherited property exclusion amount for 2026?
The exclusion is $1,044,586, effective February 16, 2025 through February 15, 2027. It's added on top of the parent's original factored base year value — if the market value at transfer doesn't exceed base year value plus this exclusion, the property keeps its low tax-assessed value.
Does every inherited property qualify for the Prop 19 exclusion?
No. Only a property the parent used as their principal residence qualifies, and the child must also make it their own principal residence, generally within one year of the transfer. Rental, investment, and vacation properties do not qualify for this exclusion at all — they're reassessed to full market value on transfer.
What happens if the market value exceeds base year value plus the exclusion?
The new assessed value becomes the parent's factored base year value plus the amount by which market value exceeds (base year value + exclusion) — not the full market value. This is often called a "partial exclusion" and still produces meaningful tax savings even when it doesn't fully shelter the gap.
Does the exclusion cap ever change?
Yes, every two years. The next adjustment is expected around February 16, 2027. Content that doesn't mention this will look outdated once the new cap takes effect.
Does this exclusion apply to grandparent-to-grandchild transfers?
Only in the narrow case where both of the grandchild's parents are deceased. Otherwise, Prop 19's inheritance exclusion is limited to parent-child transfers.
This tool provides an educational estimate only and is not legal or tax advice. Confirm your factored base year value, filing deadlines (generally within a defined window of the transfer), and required forms with your county assessor.