Proposition 19 and Inherited Property

Most people facing this question are adult children in the months after a parent's death. They hold a set of keys and a property tax bill, and they are trying to work out whether the tax on the family house is about to jump. They often have brothers or sisters asking the same thing, and a decision about keeping, renting or selling waits on the answer. This page explains how California's property tax rules treat a house that passes from a parent or grandparent. It also covers the claim an heir files, the deadlines in the code, and why the separate income tax rule on basis is a different question.

What Proposition 19 Changed About Inherited Property

Proposition 19 changed which inherited property keeps a parent's old tax value. According to the California State Board of Equalization's Proposition 19 page, its intergenerational transfer exclusion became operative on February 16, 2021. The Legislature then added Rev. & Tax. Code section 63.2 to carry it out. For any transfer on or after that date, section 63.2 is the governing law.

The date of death decides which rules apply. The Board of Equalization's page says the date of death is the date of change in ownership. Earlier rules, known as Proposition 58, apply to deaths on or before February 15, 2021. Under those earlier rules, a parent could pass a principal residence and the first $1 million of full cash value of other real property to a child without reassessment. That broader exclusion does not carry over to transfers on or after February 16, 2021.

Reassessment means the county assessor recalculates the property's taxable value at its current fair market value. That usually raises the yearly tax bill. Under section 63.2, the exclusion now reaches a family home that was the parent's principal residence and becomes the child's principal residence, or a family farm. It also applies only up to a value limit. Other inherited real property, such as a rental house or a vacation home, is generally reassessed.

The Parent-Child Exclusion Under Proposition 19: How It Works

The exclusion lets the heir step into the parent's existing taxable value. The Board of Equalization's Proposition 19 Fact Sheet calls that value the "factored base year value": the value set when the parent acquired the home, plus the yearly inflation adjustments since then.

Under Rev. & Tax. Code section 63.2, a family home qualifies when all of these are true:

• The transfer is between eligible family members. That means parent and child, or grandparent and grandchild where the grandchild's parents who are the grandparent's children have died.
• The home was the transferor's principal residence. The code defines this as a dwelling eligible for the homeowners' or disabled veterans' exemption because the transferor owned and lived in it, plus a reasonable-sized homesite.
• The home becomes the heir's principal residence within one year. The heir also files for the homeowners' or disabled veterans' exemption within a year of the transfer.
• A claim is filed with the assessor. Section 63.2 says the exclusion is not allowed unless a claim is filed.

"Children" under the statute includes adopted children (other than a person adopted after age 18), stepchildren while the relationship exists, sons- and daughters-in-law while the relationship exists, and certain foster children.

The value limit is the factored base year value plus $1 million, adjusted every other year. Under the Board of Equalization's Letter To Assessors No. 2025/009, the adjusted amount is $1,000,000 for transfers from February 16, 2021, through February 15, 2023. It is $1,022,600 from February 16, 2023, through February 15, 2025, and $1,044,586 from February 16, 2025, through February 15, 2027. The Board publishes each later adjustment, and the county assessor applies it.

If the market value at transfer is below the limit, nothing is added. If it is at or above the limit, only the excess is added to the parent's taxable value.

Hypothetical, for illustration only: A parent dies in 2025. The home's factored base year value is $400,000, and its market value is $1,600,000. The limit is $400,000 plus $1,044,586, or $1,444,586. The excess of $155,414 is added, so the new taxable value is $555,414, not $1,600,000.

The Filing Deadline and How to Claim the Exclusion

Two filings go to the county assessor where the home is located, not to the State Board of Equalization. The first is a homeowners' or disabled veterans' exemption claim, filed within one year of the transfer. The second is the exclusion claim, form BOE-19-P, which the Fact Sheet names as the Claim for Reassessment Exclusion for Transfer Between Parent and Child Occurring On or After February 16, 2021. For an inheritance, the Fact Sheet treats the date of death as the date of transfer, so the one-year clock starts at the death.

Under Rev. & Tax. Code section 63.2, the exclusion claim is due within three years after the transfer. It is due sooner if the property is first transferred to a third party or an eligible transferee stops living in the home, whichever comes earliest. A claim is also timely if it is filed within six months after the assessor mails a supplemental or escape assessment notice for the transfer. Section 63.2 also gives a longer window in limited cases tied to the 2025 Palisades, Eaton, Hurst, Lidia, Sunset and Woodley fires.

A late claim is not lost if the heir still owns the property and it has not gone to a third party. The exclusion then applies starting with the lien date of the assessment year in which the claim is filed, not back to the death. The Fact Sheet says the same of a homeowners' exemption filed after one year.

If the assessor writes to say an heir may be eligible, section 63.2 calls for a certified claim within 45 days. A second notice gives 60 days. After that, a county may charge a one-time processing fee of no more than the assessor's actual and reasonable costs or $175, whichever is less.

A separate filing comes first. Rev. & Tax. Code section 480 requires a change in ownership statement for real property passing at death. In a probate, the personal representative files it before or when the inventory and appraisal is filed with the court clerk. In other cases, including a trust, the trustee or the transferee files it within 150 days after the date of death. The estate settlement checklist places this filing among the other early tasks. Each county assessor publishes its own instructions for these forms.

When Reassessment Applies: Property That Does Not Qualify

A rental house is the clearest case. The Board of Equalization's Proposition 19 page says plainly that the transfer of a rental home between parents and children does not qualify. Vacation homes, commercial buildings and additional houses generally fall outside the exclusion for the same reason: they were not the parent's principal residence. A family farm is the exception, since section 63.2 covers each legal parcel of a qualifying farm separately.

Even the parent's own home is reassessed if no eligible heir makes it a principal residence within one year. The Board of Equalization's August 2026 question-and-answer letter says there are no exceptions to that occupancy rule.

Reassessment resets the base year value to fair market value as of the transfer. Tax is figured on that new value going forward. For a parent who owned a house for many years, the old taxable value is often far below today's market value, so the change can be large. The actual bill depends on the county's rates and the property's value.

When a parent owned several properties, the analysis runs property by property. The home the parent lived in can qualify if an heir moves in. Each other property is generally reassessed unless it qualifies as a family farm.

For many families, this is the fact that shapes everything else. The guide on whether to keep, rent or sell an inherited house weighs the property tax result against the other tradeoffs. When co-heirs cannot agree on what to do, that disagreement is a separate matter for an attorney who handles trust and probate litigation.

Grandparent-to-Grandchild Transfers Under Proposition 19

A grandchild can qualify too, but under one added condition. Rev. & Tax. Code section 63.2 extends the exclusion to grandparent-grandchild transfers only if all of the grandchild's parents who are the grandparent's children have died by the date of transfer. Stepparents are not counted. If that parent is living, the grandchild exclusion does not apply.

Otherwise the rules match. The Fact Sheet says the same conditions and requirements apply as for parents and children. The home has to have been the grandparent's principal residence and become the grandchild's within one year. The value limit applies, and the grandchild files the homeowners' exemption and the exclusion claim with the county assessor on the same deadlines described above. The county assessor's office can say which claim form applies to a grandchild's transfer.

Families in this situation are often handling two losses at once, a parent earlier and now a grandparent. A death certificate for the deceased parent is the kind of record an assessor may ask for when it checks the claim.

Proposition 19 and Trusts: What Changes and What Does Not

A trust does not change the core test. Rev. & Tax. Code section 63.2 defines a "transfer" to include a transfer of present beneficial ownership through an inter vivos (lifetime) or testamentary trust. The Board of Equalization's Letter To Assessors No. 2026/026 says the trust must be "looked through" to see who holds present beneficial ownership. If section 63.2's requirements are otherwise met, transfers of property held in a trust are eligible.

When a parent's living trust passes the house to a child after the parent's death, the question is the same one asked for a will or an intestate inheritance. Was the house the parent's principal residence? Does the child make it their own within a year? Was the claim filed? The same letter says the mode of transfer, whether by gift, joint tenancy, inheritance or intestacy, is not the issue.

A trust can make the timing harder to pin down. When a trust was set up during the parent's life and could not be revoked, or the beneficial interests shifted before the death, the date and nature of the transfer depend on the trust's terms. The county assessor's office decides those questions on the facts. An attorney or property tax professional familiar with California property tax can review the trust documents. A successor trustee settling the rest of the trust can find the wider sequence in the California estate settlement guide.

Income Tax and Basis: A Separate Question from Property Tax

Proposition 19 is a property tax rule. It decides only whether the county assessor resets the home's taxable value when it passes to the next generation.

A federal income tax rule answers a different question: what gain is measured if the heir later sells. Under 26 U.S.C. § 1014(a), the basis of property acquired from a decedent is generally its fair market value at the date of death, with exceptions for certain elections the section names. "Basis" is the starting figure from which gain on a sale is measured. A higher basis at death, often called a step-up, generally means less measured gain than the parent's original purchase price would produce.

The two rules work independently. A house can be fully reassessed for property tax and still take a date-of-death basis. A house can also keep the parent's taxable value under section 63.2 while its basis is set under federal law. Whether a particular sale owes income tax depends on facts this page does not address.

A CPA, an enrolled agent or a tax attorney reviews basis and income tax questions. The county assessor's office handles reassessment and exclusion claims. The steps around an inherited home, including both questions, appear in the guide to inheriting a house in California.