California Property Tax on Inherited Property

Most people facing this question have just received a property tax notice, or a letter from the county assessor, for a house that belonged to a parent or a spouse. They may be the person named executor or successor trustee, or one of several siblings who now own a share of the house. They are trying to work out whether the taxes are about to rise, whether moving in changes anything, and what has to be filed, often while other family members wait for an answer. The question touches every later choice about the house, including whether to keep it, rent it or sell it.

This page explains how California decides whether inherited real property is reassessed, what Proposition 19 changed, which claims protect a lower value, and how property tax differs from income tax on a later sale.

How California Property Tax Is Calculated — and Why Inheritance Triggers a Review

California taxes real property on an assessed value that is set when someone acquires it, not on what the property is worth each year. Under Proposition 13, that starting figure is called the base year value. Rev. & Tax. Code section 110.1 sets it at the property's fair market value on the date of a purchase or change in ownership, then adjusts it each year by an inflation factor. A house owned for decades can carry a taxable value far below what it would sell for today.

A change in ownership resets that value. Rev. & Tax. Code section 60 defines the term:

"A 'change in ownership' means a transfer of a present interest in real property, including the beneficial use thereof, the value of which is substantially equal to the value of the fee interest."

Inheritance is a transfer, so it can be a change in ownership. The State Board of Equalization's change in ownership FAQ explains that once the county assessor determines a change in ownership has occurred, Proposition 13 requires the assessor to reassess the property to its current fair market value as of the date ownership changed. The same page notes that if market value has fallen below the old adjusted base year value, taxes go down instead.

The decision belongs to the county assessor's office in the county where the property sits, not to the probate court. This page addresses real property, meaning land and buildings, rather than personal property such as furniture, cars or bank accounts, which pass under different rules.

Proposition 19 and the Parent-Child Exclusion After February 16, 2021

Proposition 19 changed the rules for homes passing between parents and children. The State Board of Equalization's Proposition 19 page says its intergenerational transfer exclusions became operative on February 16, 2021, and that when a parent dies, the date of death is the date of change in ownership. A death on or after that date follows the new rules.

The governing statute is Rev. & Tax. Code section 63.2. It provides that, for a claim that is filed, a change in ownership does not include the transfer of a parent's principal residence to a child (or a child's to a parent). Three conditions sit inside that rule:

• The home has to have been the parent's principal residence and become the child's principal residence within one year of the transfer.
• The child has to file for the homeowners' or disabled veterans' exemption within a year of the transfer.
• The exclusion lasts only while an eligible transferee keeps the home as a principal residence, and the property is reassessed as of the lien date after that stops.

A rental or vacation property does not qualify. The Proposition 19 page says the transfer of a rental home between parents and children would not qualify. Without the exclusion, an inherited property is reassessed to fair market value as of the date of death. The statute also covers a family farm, with each legal parcel treated separately.

Moving in does not always protect the full value. Rev. & Tax. Code section 63.2 adds to the parent's taxable value any amount by which market value exceeds that taxable value plus a set amount, originally one million dollars. The State Board of Equalization's Letter To Assessors No. 2025/009 states the adjusted amount is $1,044,586 for transfers from February 16, 2025, through February 15, 2027. For earlier dates, it lists $1,000,000 for February 16, 2021, through February 15, 2023, and $1,022,600 for February 16, 2023, through February 15, 2025. The Board publishes each new adjustment.

The same statute extends the exclusion to grandparents and grandchildren, but only if all of the grandchild's parents who are children of the grandparents, other than stepparents, have died by the date of the transfer.

Transfers Before February 16, 2021 — The Prior Parent-Child Rules

A family settling an older death works under a different framework. The Proposition 19 page explains that Proposition 58 applies to dates of death on or before February 15, 2021, and Proposition 19 applies to dates of death on or after February 16, 2021. Because the date of death fixes which law applies, a parent who died in 2019 is treated under the earlier rules even if the estate is still open today.

As a matter of history, the earlier parent-child exclusion was broader. It did not require the child to live in the home. It also reached a parent's other real property, such as a rental, up to a stated amount of value. Those rules no longer govern any death on or after February 16, 2021, and they are mentioned here only so that an heir looking at an older transfer understands why a relative's experience may not match their own.

Where a death came before that date, the county assessor's office, or a CPA or tax attorney familiar with California property tax, can confirm which rules applied and whether a claim was ever filed.

Spousal and Domestic Partner Transfers

For a surviving spouse, the property tax picture is usually simpler. The State Board of Equalization's change in ownership FAQ describes "transfers of real property between spouses" as including transfers in and out of a trust for the benefit of a spouse, the addition of a spouse on a deed, transfers upon the death of a spouse, and transfers pursuant to a divorce settlement or court order. It names transfers upon the death of a spouse, transfers into and out of a trust for a spouse's benefit, and the addition of a spouse on a deed, so the exclusion reaches transfers during life as well as at death. In practice, a surviving spouse generally keeps the existing assessed value rather than starting over at market value.

A surviving registered domestic partner may be in a similar position. The county assessor's office can confirm how the exclusion applies to a domestic partner and to the particular way title was held.

Even where no reassessment is expected, the assessor still has to learn of the death, which the next section covers. The assessor's office can say whether it needs anything more than the change in ownership filing to apply the spousal exclusion.

Filing a Claim to Preserve the Exclusion — Deadlines and the County Assessor

Two separate filings are involved, and they are easy to confuse.

The first reports the death. Under Rev. & Tax. Code section 480, when real property is subject to probate, the personal representative (the executor or court-appointed administrator) files a change in ownership statement with the county recorder or assessor before or at the time the inventory and appraisal is filed with the court clerk. In all other transfers at death, including through a trust, the trustee or the person receiving the property files it within 150 days after the date of death. If the statement is not filed within 90 days after the assessor mails a written request, the notice that section 480 requires on the statement says the failure results in a penalty of $100 or 10 percent of the taxes on the new base year value, whichever is greater, capped at $5,000 for a home eligible for the homeowners' exemption or $20,000 otherwise, if the failure was not willful.

The second is the exclusion claim, which is not automatic. Rev. & Tax. Code section 63.2 allows the exclusion only if a claim is filed with the assessor, generally within three years after the transfer, or before the property is transferred to a third party, or before an eligible transferee stops living there, whichever is earlier. A claim also counts as timely if filed within six months after the assessor mails a supplemental or escape assessment notice for the transfer. If every deadline passes and the heir still owns the property, a late claim can still be granted, but only going forward from the lien date of the year it is filed. If the assessor sends a notice of potential eligibility, the statute gives 45 days to file a certified claim, followed by a second notice allowing 60 days.

The State Board of Equalization's Proposition 19 fact sheet names the claim form as BOE-19-P and says it is submitted to the county assessor where the property is located. Each county assessor, such as the Los Angeles County Assessor for property in that county, administers these claims locally. Disputing an assessor's decision is a separate subject handled by an attorney or tax professional who practices in property tax appeals.

Income Tax on Inherited Property — Stepped-Up Basis and Capital Gains

Property tax is an annual bill from the county. Income tax arises only if the heir later sells. The two are easy to blur when everything about the house feels urgent at once, but they follow different laws and different offices.

For income tax, the key idea is basis, the starting figure used to measure gain on a sale. Federal law generally resets it at death. Under 26 U.S.C. § 1014(a), except as otherwise provided, the basis of property acquired from a decedent is:

"(1) the fair market value of the property at the date of the decedent's death, (2) in the case of an election under section 2032, its value at the applicable valuation date prescribed by such section, (3) in the case of an election under section 2032A, its value determined under such section, or (4) to the extent of the applicability of the exclusion described in section 2031(c), the basis in the hands of the decedent."

This is often called a step-up in basis. Because gain is measured from the new basis rather than the parent's original purchase price, a sale soon after inheriting may show little or no gain. Whether any tax is owed depends on the sale price, costs, how the property was held and other facts. A CPA, an enrolled agent or a tax attorney reviews basis and capital gains questions, and families weighing a keep, rent or sell decision often look at both taxes side by side.

Does California Have an Inheritance Tax or Estate Tax?

This question often comes up beside property tax. The California State Controller's office publishes the state's information on estate and inheritance taxes, and it is the place to confirm the state-level answer for a particular date of death.

Federal estate tax is a separate question governed by federal law, applied to the estate as a whole rather than to each heir's share. Whether an estate has any federal estate tax exposure depends on its size and the year of death, and a CPA or tax attorney who works with estates can answer it. The California estate settlement guide places these tax questions alongside the other steps of settling an estate.