Capital Gains Tax on Inherited Property in California

Most people who inherit a house assume they’ll owe capital gains tax on the whole thing when they sell it. Most of the time, they’re wrong, and the reason is basis, not exemption. California has no state estate tax or inheritance tax, and the federal estate tax exemption is $15 million per person as of 2026, so estate tax almost never applies. But capital gains tax is a different question entirely, and it turns on one number: what the property’s basis was on the date your parent died.

For the whole decision, including Prop 19, the step-up, and who has authority to sell, see what to do with an inherited house in California.

Start with the basis, not the sale price

Capital gains tax is calculated on the difference between what an asset sells for and its basis, not on the full sale price. For inherited property, the basis usually isn’t what the original owner paid decades ago. Under IRC § 1014, it’s reset to the property’s fair market value on the date the person died. This is what people mean when they talk about “stepped-up basis.”

That single rule is why most people who inherit and sell a house within a reasonable time owe little or no federal capital gains tax. Walk through the numbers: your mother bought her house in 1978 for $52,000. She dies in 2026, and on that date the house is worth $900,000. If you sell it eight months later for $920,000, the taxable gain is $20,000, the difference between the sale price and the stepped-up basis, not the $848,000 of appreciation your mother watched happen over 48 years. Without the step-up, you’d be looking at capital gains tax on nearly the full appreciation. With it, you’re taxed only on what happened after her death.

This is arguably the single most valuable, least understood benefit that comes with inheriting property in California, and it’s why families who sell an inherited house shortly after death are frequently surprised at how small the tax bill actually is. We cover the mechanics of how the step-up works, including where it doesn’t apply (irrevocable trusts have their own wrinkles), in stepped-up basis in California trusts and how step-up works in an irrevocable trust.

Community property can mean an even bigger step-up

If the property was community property between a married couple, and one spouse dies, both halves of the property step up to fair market value under IRC § 1014(b)(6), not just the deceased spouse’s half. This is a California-specific advantage that most separate property states don’t have, because most other states are common law states where only the decedent’s half gets the step-up.

Here’s what that difference actually looks like in dollars. Suppose a married couple bought a house decades ago for $100,000, and it’s worth $1 million when the husband dies, with the wife surviving. If the couple instead owned the house as joint tenants in a common law state, only the husband’s half steps up: his half resets from $50,000 to $500,000, but the wife’s half keeps its original basis of $50,000. Combined basis: $550,000. A house that was the husband’s separate property would step up in full to $1 million, because all of it came from him. If instead the house is community property, both halves step up, giving a combined basis of the full $1 million fair market value. If the surviving spouse then sells the house for $1 million, the joint-tenancy scenario shows a taxable gain of $450,000; the community-property scenario shows a taxable gain of zero. That’s not a rounding difference, that’s the entire tax bill.

The catch is that this depends entirely on how the property was actually characterized, and characterization isn’t always as simple as “we’re married, so it’s community property.” Property acquired before marriage, inherited by one spouse individually, or handled in ways that could constitute transmutation all complicate the analysis. See community property vs. separate property step-up in California for how that determination gets made, and characterizing assets after death for the broader framework trustees use to sort this out.

Federal and California tax don’t move the same way

Federal capital gains tax applies to the gain calculated after basis, at rates depending on how long the asset was held and the seller’s income (0%, 15%, or 20% for long-term gains; for 2026 the 20% rate starts at $545,500 of taxable income for a single filer and $613,700 for a married couple filing jointly, and a 3.8% net investment income tax applies above $200,000 and $250,000 of modified adjusted gross income under IRC § 1411). Because inherited property automatically gets long-term capital gains treatment regardless of how long the heir actually owns it before selling, there’s no requirement to hold the property for a year to get the better federal rate. You could inherit a house on Monday and sell it on Friday and still qualify for long-term treatment on any gain.

California doesn’t have a separate capital gains rate. Gain from selling California real estate gets taxed as ordinary income under the state’s income tax brackets, on top of whatever federal tax applies, and California’s top marginal rate runs considerably higher than most federal long-term capital gains brackets. There’s no stepped-up basis exception at the state income tax level; California uses the same basis rules as the federal government for this purpose, but its rates are its own, and there’s no cap comparable to federal long-term capital gains rates. In practice this means the state portion of the tax bill on a large gain can end up being a bigger number than the federal portion, which surprises people who assume federal tax is always the dominant piece.

	Federal	California
Rate on the gain	Long-term rates of 0%, 15% or 20% depending on income	No separate capital gains rate. Taxed as ordinary income under the state brackets
Basis rules	Basis resets to date-of-death value (IRC § 1014)	Same basis rules as the federal government
Holding period	Inherited property gets long-term treatment however long you hold it	Not applicable. No long-term discount
Extra tax	3.8% net investment income tax can apply above income thresholds (IRC § 1411)	None described

None of this should be confused with property tax reassessment under Proposition 19, which is an entirely separate system based on ownership change, not on sale or gain. A house can avoid property tax reassessment under Prop 19 and still generate capital gains tax if sold above its stepped-up basis, because those two systems ask completely different questions. See what triggers Prop 19 reassessment for how that system works independently, and how to file the Prop 19 exclusion for the filing side of it.

Why the date-of-death value has to be documented

Basis isn’t self-reporting. Without a qualified appraisal establishing fair market value on the date of death, there’s no defensible number to use when the IRS or the Franchise Tax Board asks how the gain was calculated. An assessor’s tax valuation isn’t the same thing and shouldn’t be relied on for this purpose; the assessed value used for property tax under Prop 13 and Prop 19 is often far below actual market value, and using it as a stand-in for basis would understate the step-up and overstate the taxable gain.

A retrospective appraisal, one prepared after the fact by a qualified appraiser opining on value as of the date of death, is generally accepted, but it’s harder to defend than an appraisal ordered close to the actual date. If your family is three years past a death and just now thinking about selling, get the appraisal done properly rather than guessing at a number or relying on a real estate agent’s informal estimate. We explain how to get a proper appraisal and why timing matters in the date-of-death appraisal.

Documents to gather before you sell

• A certified death certificate, which fixes the date your basis is measured from.
• A written appraisal of the house as of the date of death by a qualified appraiser.
• If the estate went through probate, the Inventory and Appraisal, Judicial Council form DE-160, which lists the estate’s assets at their date-of-death values, with real property appraised by the probate referee.
• The closing statement from the sale, showing the sale price and the selling costs.
• Receipts for improvements you paid for after the date of death. IRS Publication 523 says the cost of additions and improvements adds to basis.

When selling makes sense

Selling soon after death, once the basis is established, usually means selling close to the stepped-up value, which minimizes gain and therefore minimizes tax. The longer heirs hold the property before selling, the more appreciation accumulates on top of the stepped-up basis, and that appreciation is taxable when the eventual sale happens, regardless of how long ago the death occurred.

There are legitimate reasons to hold rather than sell right away: a beneficiary wants to move into the house, the market is temporarily soft, or the trust has other administrative reasons to delay distribution. But holding isn’t tax-neutral, and it isn’t free. If a beneficiary is planning to sell eventually regardless of when, doing it sooner rather than later, while the sale price is still close to the stepped-up value, is usually the more tax-efficient move. A house that steps up to $900,000 and sells five years later for $1.3 million generates a $400,000 taxable gain that could have been avoided almost entirely by selling in year one.

If an heir moves in, the home-sale exclusion can shelter more gain

Holding the house isn’t always the tax mistake it looks like. If an heir moves in and makes it a principal residence, IRC § 121 excludes up to $250,000 of gain on a later sale, or up to $500,000 for a married couple filing jointly. The tests are ownership and use: during the five years ending on the sale date, you must have owned the house and lived in it as your main home for periods adding up to at least two years. For a joint return, either spouse can meet the ownership test, but both spouses must meet the use test to get the full $500,000. You can use the exclusion only once in any two-year period (IRS Publication 523).

Your parent’s years in the house don’t count for you. The statute adds a deceased spouse’s time to the surviving spouse’s, but only for an unmarried surviving spouse (§ 121(d)(3)), and it has no similar rule for a child or other heir. Plan on counting only your own time owning and living in the house. For how this works on a Ventura County sale, see capital gains on an inherited house in Ventura County. If the house is in a trust, see selling a house in a living trust.

Where the step-up stops

Stepped-up basis is powerful, but it’s not automatic protection against every tax consequence, and it doesn’t apply the same way to every kind of asset or every kind of trust. Assets already given away during someone’s lifetime don’t get this treatment; they carry over the giver’s original basis instead, which is why gifting appreciated property before death is often the wrong move even though it feels proactive. And if the trust is irrevocable and structured certain ways, the step-up analysis gets more complicated than the simple version described here. Get your specific facts, and the type of trust involved, reviewed before you assume a number.

Talk to a real California estate attorney

If you’ve inherited property in California and you’re weighing whether to sell, or you’re a trustee trying to calculate gain correctly before a sale closes, I can walk through the actual numbers with you, not just the general rule.

Talk to Eric Ridley is a free 30-minute consultation by phone or Zoom, anywhere in California. Or call (805) 244-5291. You’ll leave knowing where you stand, whether or not you hire me.

Related reading: Stepped-up basis in California trusts · Community property vs. separate property step-up · Why you need a date-of-death appraisal

Frequently asked questions

How much capital gains tax will I owe when I sell an inherited house in California?

Usually much less than people expect, because the taxable gain is calculated from the property’s stepped-up basis, its fair market value on the date of death, not from what the original owner paid. If a house was worth $900,000 when your parent died and sells for $920,000 later, the taxable gain is $20,000, not decades of appreciation.

What is stepped-up basis?

Under IRC § 1014, an inherited asset’s basis resets to its fair market value on the date the owner died, instead of carrying over what they originally paid. That step-up is why most heirs who sell relatively soon after death owe little or no federal capital gains tax on the sale.

Does community property get a bigger step-up in basis than separate property?

Yes. Under IRC § 1014(b)(6), community property between a married couple gets a full step-up on both halves when one spouse dies, not just the deceased spouse’s half. Property co-owned in another form, such as joint tenancy between spouses in a common law state, steps up only on the deceased owner’s half, so characterization can make a substantial tax difference.

Does California tax capital gains differently than the federal government?

California has no separate capital gains rate. Gain from selling California real estate is taxed as ordinary income under the state’s regular income tax brackets, on top of federal tax. California uses the same stepped-up basis rules as the federal government, but its own rate structure, with no discount for long-term gains.

When does it make the most sense to sell inherited property?

Selling relatively soon after death, once a proper date-of-death appraisal establishes basis, usually means selling close to the stepped-up value, which minimizes taxable gain. Every year heirs hold the property before selling adds appreciation on top of that basis, and that appreciation becomes taxable when the sale eventually happens.

See also: capital gains on an inherited house in Ventura County and what to do with an inherited house in California.

This is general information about California law, not legal advice for your situation.