Your Children May Not Inherit Your Property Tax Bill. California Changed the Rule in 2021.
A couple in their late 60s owns the California home they bought decades ago. Their property tax bill is still based on a purchase price from another era, and their estate plan leaves the house to their children. Somewhere in the back of their minds is a belief that the low tax bill goes with it.
For transfers on or after February 16, 2021, that is only partly true. Under California's Proposition 19, a home that passes from parent to child keeps its low assessed value only if the child makes it their own primary residence, and even then only up to a limit, which is $1,044,586 above the current assessed value for transfers between February 16, 2025 and February 15, 2027. A home the children keep as a rental or a second home is reassessed at full market value. This applies to California real property passed to children, or to grandchildren whose parents have died, by gift, by will, or through a trust.
What Changed in 2021
Before Proposition 19, a parent could generally pass the family home to a child without reassessment, whatever the home was worth and whether or not the child lived in it. The same rule covered up to $1 million of assessed value in other California property, such as a rental or a vacation home. Estate plans written before 2021 were drafted under that rule.
Proposition 19 narrowed the exclusion in two ways. It now applies only to a family home (or a family farm), and the child has to live there. And the protection is capped: the child keeps the parents' assessed value plus the inflation-adjusted $1 million allowance, and anything above that is added to the taxable value.
What It Can Cost
As a hypothetical, rounded for illustration: parents own a home with a current assessed value of $600,000 and a market value of $3 million. The figures below apply California's 1% general property tax rate only; local bonds and assessments would add to each one.
| What happens to the home | New taxable value | Approx. annual tax at 1% |
|---|---|---|
| Parents keep it | $600,000 | $6,000 |
| A child inherits it, moves in, and files on time | $1,955,414 | $19,550 |
| The children inherit it and keep it as a rental | $3,000,000 | $30,000 |
In the middle case, the $3 million value exceeds the protected amount ($600,000 plus $1,044,586) by $1,355,414, and that excess is added to the assessed value. The protection still saves the child money. But a family expecting to keep the parents' $6,000 bill would be planning around a number that no longer exists.
Where Plans Go Wrong
The child doesn't move in. The exclusion depends on the child using the home as a principal residence and filing for the homeowners' exemption within one year of the transfer. A child who lives in another state, or who plans to rent the house out, gets no exclusion at all.
The trust was expected to handle it. A living trust avoids probate, but it doesn't avoid reassessment. When the trust becomes irrevocable at the parent's death, ownership has changed for property tax purposes, and the same Proposition 19 rules apply.
The deadline passes quietly. Beyond the one-year homeowners' exemption filing, the claim for the parent-child exclusion itself must be filed with the county assessor within three years of the transfer, or before the property is sold to someone else, whichever comes first. A late homeowners' exemption filing means the exclusion applies only going forward.
Homes left to several children, where one wants to live there and the others don't, raise further questions about buyouts and how the trust distributes the property. Those are worth working through with an estate attorney before they come up.
What Else This Decision Touches
Income tax on a future sale. Some families consider giving the house to a child during life to get ahead of the rules. Proposition 19 treats a lifetime gift and an inheritance the same way for property tax, so a gift usually gains nothing there. It can cost something elsewhere. A child who inherits a home at death generally receives a cost basis equal to its value on the date of death, while a child who receives it as a gift generally takes on the parents' original basis. California follows the federal basis rules here, so on a later sale the difference can mean a much larger realized capital gain at both the federal and state level.
What the rest of the plan assumes. If the plan expects the home to be kept, the property tax difference affects whether keeping it is affordable, and for whom. If the plan expects it to be sold, reassessment matters less and the basis question matters more. Either way, the decision connects to the parents' own plans for the house, including the home-sale exclusion if they sell it during their lifetime.
What a Thoughtful Next Step Looks Like
The first step is to find out what your documents assume. An estate plan can direct where the house goes without saying anything about property tax. The Family Estate Organizer® exists to align documents and forms with what the family actually intends, so the plan on paper matches real life. For the family home, that means knowing whether a child intends to live there, and whether the attorney who drafted the trust has reviewed it since 2021.
If you already work with an advisor and an estate attorney, a fair question to bring to both is whether your plan for the house was built under the current rule or the old one.
If you are not getting your questions on this topic answered by your current financial advisor and would like to discuss working with us, you may request a meeting here.