How Proposition 19 Changed Inherited Property Taxes in California - and What Heirs Need to Do Now
Do I have to pay higher property taxes if I inherit my parents' home in California?
Under Proposition 19, which took effect February 16, 2021, inheriting a California home does not automatically preserve your parent's low property tax assessment. You must move into the home as your primary residence within one year of the transfer and file a claim with your county assessor. If you qualify, some or all of the parent's assessed value carries over. If you don't, the property is reassessed at current market value.
How long do I have to move into an inherited home to keep the lower property tax assessment under Prop 19?
Under California's Proposition 19 rules, an heir generally must establish the inherited home as their primary residence within one year of the transfer date, which is typically when the deed is recorded. The heir must also file a formal exclusion claim, Form BOE-19-P, with the county assessor. Contact your specific county assessor's office to confirm any additional local filing deadlines, as these can vary.
What happens if I inherit a California home but don't want to live in it?
If you inherit a California home and don't move into it as your primary residence within one year of the transfer, the county assessor will likely reassess the property at its current fair market value as of the date you inherited it. This can significantly increase the annual property tax bill. The parent-child exclusion under Proposition 19 is only available for a home the heir actually occupies as their primary residence.
Does Proposition 19 apply to property held in a living trust in California?
Yes. For property tax reassessment purposes, California county assessors generally look at when beneficial ownership actually changed hands, not when a trust was created. If a parent held a home in a revocable living trust and the property transferred to an heir upon the parent's death, the Prop 19 reassessment rules apply at that point of transfer. Heirs should not assume a trust structure automatically avoids reassessment under current law.
Is there a cap on how much property tax can increase when I inherit a California home?
Under Proposition 19, if a qualifying heir moves into the inherited home as a primary residence, the assessed value increase is capped. If the home's current fair market value exceeds the parent's assessed value by $1 million or less, the parent's lower assessed value carries over in full. If the difference exceeds $1 million, the assessed value is set at fair market value minus $1 million. Verify current thresholds with the California State Board of Equalization at boe.ca.gov.
Inheriting a home from a parent in California used to come with a valuable tax break: the property's assessed value could pass to heirs largely intact, shielding them from a potentially massive property tax increase even if the home had appreciated for decades. Proposition 19, which California voters approved in November 2020 and which took effect for inherited properties in February 2021, rewrote those rules substantially. If you've inherited a California home since then, or expect to, the rules you may have heard about from older relatives or friends almost certainly no longer apply.
Related: How Prop 19 Changed Inherited Property Taxes in California - and What Heirs Need to Know Now · How Prop 19 Changed Inherited Property Taxes in California - and What Heirs Need to Know
What Prop 13 Actually Does (and Why It Matters Here)
To understand what Prop 19 changed, you need to understand what Prop 13 established back in 1978. Under Prop 13, a property's assessed value for tax purposes is set at its purchase price (or the value at the time it's acquired), and annual increases are capped at 2 percent per year, regardless of how much the market value rises. For a family that bought a home in the 1970s or 1980s, the assessed value can be a small fraction of what that home would sell for today. That's the gap at the heart of the inheritance question.
Before Prop 19, parents could transfer a primary residence of any value to their children, and the children could keep the parent's low assessed value permanently, whether they lived in the home or not. They could also transfer up to $1 million in assessed value of other property types. That exclusion is now largely gone.
What Prop 19 Changed for Inherited Property
Under Prop 19, as of February 16, 2021, the parent-child exclusion for inherited property is much narrower. An heir can only retain the parent's assessed value if they move into the inherited home as their primary residence within one year of the transfer. Vacation homes, rentals, and properties left vacant don't qualify. Neither does a home the heir already owns and treats as their primary residence if they're keeping the inherited one as a secondary property.
Even when an heir does move in and qualifies for the exclusion, it's not unlimited. The California State Board of Equalization administers this, and the current rule caps the benefit: if the home's current fair market value exceeds the parent's assessed value by more than $1 million, the assessed value for the heir is set at fair market value minus $1 million. So a home the parent had assessed at $200,000 but that's now worth $1.5 million would be reassessed to $500,000 for the qualifying heir, not kept at the parent's $200,000 baseline. For properties where the market value is within $1 million of the parent's assessed value, the parent's low assessed value carries over fully.
If the heir doesn't qualify, or simply doesn't claim the exclusion in time, the county assessor reassesses the property at current fair market value as of the date of transfer. That can mean a property tax bill that triples or quadruples overnight, especially in high-cost markets.
How to Actually Claim the Exclusion
The burden is on the heir to file a claim. California's Board of Equalization provides a standard form for this, Form BOE-19-P (Claim for Reassessment Exclusion for Transfer Between Parent and Child Occurring on or After February 16, 2021). The completed form goes to the county assessor's office in the county where the property is located, not to the state.
The one-year clock to establish the home as a primary residence starts from the date of transfer, which is typically the date the deed is recorded. Counties also have their own deadlines for when the claim form must be filed, though late claims may still be considered in some counties, with partial relief. Because county assessors have some discretion in how they process these, contacting the specific county assessor's office directly is essential rather than assuming a uniform statewide process applies.
Documentation matters. The assessor will want proof that the heir actually occupies the home as a primary residence: a California driver's license or ID reflecting the new address, voter registration, utility bills in the heir's name, or similar records. The stronger the paper trail, the less likely the assessor is to dispute the claim.
See also: How Prop 19 Changed Inherited Property in California - and What Heirs Need to Do · How Prop 19 Changes California's Inherited Property Tax Rules - and What Heirs Need to Know
Situations That Can Catch Heirs Off Guard
Trusts are a common complication. Many California homeowners hold property in a revocable living trust for estate-planning purposes. The transfer for Prop 19 purposes typically happens at the time the parent dies and the trust distributes to the heir, not when the trust was created, so heirs shouldn't assume the trust structure shelters them from reassessment. County assessors look through the trust to determine when beneficial ownership actually changed.
Multiple heirs on a single property add another layer. If four siblings inherit a home equally and only one moves in, the exclusion applies proportionally to that sibling's share, and the other three-quarters of the assessed value may be subject to reassessment depending on how the county treats the transfer.
Sibling-to-sibling or grandparent-to-grandchild transfers follow different rules. The parent-child exclusion under Prop 19 doesn't extend to siblings inheriting from siblings, and the grandparent-to-grandchild exclusion has its own requirements. The California State Board of Equalization's guidance documents cover these scenarios in detail, and given the complexity and the money involved, consulting a California-licensed real estate attorney or estate attorney before the transfer is finalized is worth the cost.
Where to Get Official Information
The California State Board of Equalization publishes plain-language guidance on Prop 19, including the official claim forms, at boe.ca.gov. Your county assessor's office is the entity that actually processes claims and makes the reassessment determination, so their contact information and any county-specific instructions matter as much as the state-level forms. Many county assessors post Prop 19-specific guidance and form submission instructions on their own websites, which are findable through your county's main government portal.
This is general information, not legal or financial advice. Prop 19's rules involve significant money and strict timelines, and individual situations, especially those involving trusts, multiple heirs, or properties in multiple counties, can vary substantially. Verify current form requirements, filing deadlines, and eligibility rules with the California State Board of Equalization at boe.ca.gov and with your specific county assessor's office, as procedures and interpretations can change.