Most people facing this question are carrying it alongside everything else that follows a death. An adult child may be clearing out a parent's closets while a sibling asks when the house will be listed. A surviving spouse may be wondering whether the house can stay as it is. A newly named executor or successor trustee may be fielding questions from relatives and realizing nobody explained what the job allows. This page sets out the California and federal rules that shape the keep-or-sell decision, so a family can see which facts matter before anyone commits to a path.
The Short Answer: What Shapes the Decision
Five facts do most of the work, and each one gets its own section below.
First, how the house passes. Title held in a living trust, by a will through probate, in joint tenancy, or as tenants in common decides who has the power to keep it or sell it.
Second, the federal tax basis: the starting value used to measure gain or loss when the house is sold.
Third, California property tax. A change in ownership usually means the house is reassessed, with a limited exclusion under Proposition 19.
Fourth, the house's own costs: a mortgage, liens, insurance, taxes and repairs that keep coming whether or not anyone lives there.
Fifth, the people. A sole heir decides alone. Co-heirs who disagree face a different set of questions.
Stepped-Up Basis: How Federal Tax Law Treats an Inherited House
Basis is the starting value used to measure gain or loss when property is sold. For an inherited house, federal law sets it by a fixed rule, often called a stepped-up basis. Under 26 U.S.C. § 1014(a), the basis of property acquired from a decedent is generally "the fair market value of the property at the date of the decedent's death," unless the personal representative elects an alternate valuation date allowed by the statute. Fair market value means what the house would likely sell for on that date, which is why a date-of-death appraisal matters.
Gain is then measured from that number. Under 26 U.S.C. § 1001(a), gain is the amount realized on a sale above the adjusted basis. In practice, a house sold soon after the death for close to its date-of-death value often shows little or no gain, and the IRS's Frequently asked questions on estate taxes page says there is "usually little or no gain to account for if the sale occurs soon after the date of death."
Time changes the picture. Any rise in value after the death sits above the stepped-up basis, so the longer the house is held and the more it appreciates, the larger the potential taxable gain.
Exceptions exist. Under the same section, appreciated property the decedent received as a gift within one year of death keeps a different basis when it returns to the giver or the giver's spouse.
These passages are general information. A CPA, an enrolled agent or a tax attorney reviews the basis, any adjustments and whether a particular sale produces taxable gain.
California Property Tax and Proposition 19
Reassessment is the rule that surprises many heirs. When California real property changes ownership, the county assessor generally sets a new taxable value based on current market value, and a parent's long-held home can carry a much higher annual tax bill afterward. The State Board of Equalization's Proposition 19 fact sheet notes that where the transferor died, the date of death is treated as the date of transfer.
For transfers on or after February 16, 2021, Rev. & Tax. Code section 63.2 lets a transfer of a parent's principal residence to a child avoid reassessment, in whole or in part, when a claim is filed. The conditions, as the code states them:
- The house must have been the parent's principal residence, eligible for the homeowners' or disabled veterans' exemption through the parent's ownership and occupation.
- It must become the child's principal residence within one year of the transfer.
- The child must file for the homeowners' or disabled veterans' exemption within a year of the transfer.
Grandchildren qualify only if all of their parents who are children of the grandparents have died. Value above a statutory limit is added to the taxable value; the State Board of Equalization adjusts that limit every other year and publishes the current amount.
The timing of the claim matters, and the practical point is this: the claim belongs with the county assessor where the house sits, and the window can close early if the house is sold or the heir moves out. Under the same section, the claim is filed within three years after the transfer, or before the house is transferred to a third party, or before an eligible transferee stops living there, whichever is earlier. A claim filed within six months after the mailing of a supplemental or escape assessment notice for the transfer also counts as timely. A missed deadline is not always the end of the road: if those periods pass and the house has not gone to a third party, a late claim can still be considered, with relief starting in the assessment year the claim is filed.
If no child moves in, the exclusion does not apply and the house is reassessed. The State Board of Equalization's Proposition 19 guidance page states that a rental home between parents and children would not qualify, and that once an heir stops living there, the house receives a new taxable value as of the next lien date.
A trust does not block the exclusion on its own. The Board's Letter To Assessors No. 2026/026 says the trust is "looked through" to find who has present beneficial ownership, and trust transfers can qualify if the other requirements are met. The county assessor's office decides each claim.
Who Has Authority to Sell — or Keep — the House
The legal path the house takes decides who holds the decision, and families are often surprised that the person who loves the house most may not be the one with authority over it.
A successor trustee is the person named in a living trust to take over after the person who created it dies. The trustee's power to keep, transfer or sell trust property comes from the trust document itself, and a sale generally proceeds without court confirmation unless the trust requires it. A trustee also has notice duties: under Probate Code section 16061.7, when a revocable trust becomes irrevocable because of a death, the trustee generally serves a notification on each beneficiary and each heir within 60 days, or within 60 days after learning of a person entitled to it.
An executor or administrator acts for an estate in probate. An executor is the person named in a will; when no executor serves, the court appoints an administrator, and Probate Code section 8461 sets the order of priority, starting with the surviving spouse or domestic partner, then children, then grandchildren, and continuing through other relatives to creditors and any other person. A sale of estate real property depends on the authority the court grants. Under the Independent Administration of Estates Act, a court can let the personal representative act with less court supervision; with full authority, a sale often goes forward on a notice of proposed action to interested people, and without it a sale may need court confirmation. A probate attorney says which applies to a given estate.
Joint tenancy with right of survivorship generally passes the house to the surviving joint tenant without probate.
Tenants in common each own a fractional share, and no single co-owner can sell the whole house without the others.
Community property with right of survivorship generally passes the whole house to the surviving spouse. The IRS's Publication 551, Basis of Assets explains that in California and other community property states, the full value of community property generally becomes the basis of the entire property when the decedent's half is includible in the gross estate. A CPA or tax attorney reviews how that applies.
Where heirs, a trustee or an executor are in conflict, or misconduct is suspected, that contested matter is a different subject, handled by an attorney who litigates trust and probate cases.