If you own a home in California and plan to leave it to your children, Proposition 19 almost certainly changed the math. It took effect in February 2021, and it quietly undid a strategy that California families had relied on for decades. Here is what it does, in plain English, and why it belongs on your estate planning radar.
The old rule, and what Prop 19 changed
For years, California parents could pass their home to their children without triggering a property-tax reassessment. The children inherited not just the house but its low, long-held tax basis, which often meant property taxes a fraction of what a new buyer would pay. Parents could also pass a certain amount of other property (like a rental) to children on the same favorable terms.
Prop 19 narrowed that sharply. Now, the parent-child exclusion from reassessment is far more limited:
- It only applies to a primary residence. Rentals, vacation homes, and commercial property passed to children are now reassessed to current market value, which can mean a dramatic property-tax increase.
- The child generally has to move in. To keep the parent’s tax basis, the child usually must make the home their own primary residence and claim the homeowners’ exemption.
- There is a value cap. Even when the child does move in, if the home’s market value is high enough above the old assessed value, part of the increase is added back, so the protection is partial on more valuable homes. (The cap is adjusted for inflation each year; confirm the current figure for your situation.)
The practical result: inheriting the family home can now come with a much larger annual property-tax bill than families expect, unless it is planned for.
There is also a benefit: portability for people 55+
Prop 19 wasn’t all restriction. It also expanded portability. Homeowners who are 55 or older (or severely disabled, or victims of a wildfire or natural disaster) can now transfer their primary residence’s property-tax basis to a replacement home anywhere in California, and can do so up to three times. For empty-nesters who want to downsize or move closer to family, this can be a meaningful tax savings.
Why this matters for your estate plan
Prop 19 turned a lot of old plans upside down. A common instruction like “leave the rental duplex to the kids” may now hand them a reassessed property with taxes they cannot afford, sometimes forcing a sale. Even leaving the family home can surprise heirs if none of them intends to live in it.
There is also a tension worth understanding: inheriting a home at death usually comes with a step-up in basis (a capital-gains tax advantage), which is a reason not to transfer a home during your lifetime, even though a lifetime transfer might once have dodged reassessment. Prop 19 means these decisions now have to be weighed together, not in isolation.
The right response depends entirely on your family, your property, and your goals. There is no one-size-fits-all move here, and some of the workarounds that get passed around online can do more harm than good. This is a situation where planning with an attorney, before anything is transferred, genuinely pays off.
The takeaway
Prop 19 did not make it impossible to pass your home to your children, but it changed the rules enough that an old plan may no longer do what you think it does. If your estate plan predates 2021, or if a significant part of your wealth is tied up in California real estate, it is worth a fresh look.
To understand how your home fits into the bigger picture, see Will vs. Trust: What California Homeowners Need to Know and our guide to revocable living trusts .
Want to learn more? Watch our free estate planning webinar , or book a free 15-minute call .
This article is general information about California law, not legal advice, and does not create an attorney-client relationship. Proposition 19 and property-tax rules are nuanced and change over time, so please confirm the current details with a qualified attorney.