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.

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 section 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 $868,000 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 section 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 house is separate property, only the husband’s half steps up: his $450,000 half (half the appreciation) resets to fair market value, but the wife’s half keeps its original basis of $50,000. Combined basis: $500,000. 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 separate-property scenario shows a taxable gain of $500,000; 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 (generally 0%, 15%, or 20% for long-term gains, plus a potential 3.8% net investment income tax at higher incomes [verify current thresholds]). 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.

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.

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.

The honest caveat

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 60-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.

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 section 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 section 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. Separate property only steps up on the portion that belonged to the person who died, 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.

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

Capital Gains Tax on Inherited Property in California