Step-Up in Basis for Inherited Property: How It Saves You Money in California
If you have inherited a home or other property in California, you might worry about the taxes and financial stress it can bring. The stepped-up basis rule allows your tax basis to reset to the property's fair market value at the time of death. 2 This article explains how this tax benefit works, why it matters for capital gains taxes, and how it could save you money when selling inherited real estate in California. 1
Key Takeaways
- The step-up in basis resets the property's tax value to its fair market price on the date of death. If you inherit a Los Angeles home worth $900,000 that your parent bought for $100,000, your cost basis becomes $900,000.
- This rule can save you tens of thousands in capital gains taxes when selling inherited California real estate.
- California is a community property state, so surviving spouses receive a full step-up on both halves of the home's value after one spouse dies — a major advantage over common law states.
- You must report sales using IRS Schedule D and Form 8949 at the federal level, plus report the gain on your California state income tax return. Always use certified appraisals to prove fair market value at inheritance.
- Only inherited property receives this benefit. Gifted assets keep the original owner's cost basis and may trigger much higher capital gains taxes later.
What Is Step-Up in Basis?
Step-up in basis lets you reset the tax value of inherited property to its fair market price on the date of death. This rule can significantly lower your potential capital gains tax when you sell the property — especially relevant in California, where home values in cities like San Francisco and Los Angeles have appreciated dramatically over decades.
Definition of "basis" and how step-up resets value
Your "basis" in property is the amount you paid for it, plus costs like major improvements or closing fees. The IRS uses this number to calculate any capital gains tax if you sell.
When you inherit real estate in California, federal law under Section 1014 of the Internal Revenue Code allows you to use the fair market value on the decedent's date of death as your new cost basis. Instead of using what your loved one paid decades ago, you start fresh with the current market value. If that inherited San Diego home is worth $700,000 at inheritance and you sell it near that price, there may be little or no taxable gain.
This step-up eliminates income taxes on appreciation that occurred during your loved one's lifetime and can provide enormous savings, as detailed in IRS Publication 551.
Example: Parent's home purchase and California inheritance scenario
Angela bought her Sacramento home in 1980 for $80,000. In 2022, Angela passed away. The fair market value of her home at the time of death was $600,000. As her daughter, you inherited the house with a new cost basis set at $600,000 due to the step-up in basis rule.
You sell the property two years later for $625,000. Your taxable gain is only $25,000 instead of a potential $545,000 without this rule. At combined federal and California state capital gains tax rates — California taxes capital gains as ordinary income, with a top rate of 13.3% — the savings are substantial. With a federal long-term rate of 15% and California's rate, that $545,000 gain could have cost well over $150,000 in taxes. The step-up dramatically reduces that burden.
How Step-Up Works
The step-up in basis resets the tax basis of inherited real estate to its current fair market value, reducing your potential capital gains tax when you sell. Tax rules treat inherited assets differently from gifts, which greatly impacts your future tax burden — particularly in a high-value California market.
Valuation process and inheritance rules
- Executors must establish the fair market value (FMV) of the property as of the decedent's date of death, using an independent appraisal or comparable sales data.
- An alternate valuation date — exactly six months after death — may be used if property values have dropped, potentially reducing capital gains taxes at sale.
- The cost basis for inherited property equals its FMV at the date of death, not what your loved one originally paid.
- Required documentation includes a certified appraisal, date-of-death records, deeds, closing statements, and records of improvements.
- In California, inherited property may also trigger a reassessment for property tax purposes. However, certain transfers between parents and children — or grandparents and grandchildren — may qualify for a partial exclusion from reassessment under Proposition 19, which took effect February 16, 2021. This exclusion is limited and requires the heir to use the home as their primary residence.
- Only inherited property receives a step-up in basis. Gifted assets use carryover basis, which can lead to higher capital gains taxes.
- IRS Schedule D and Form 8949 are required for reporting sales on your federal return. California requires you to report the same gain on your state income tax return (Form 540), since California does not have a separate capital gains tax rate — gains are taxed as ordinary income.
- If Schedule A to Form 8971 is issued by the executor, you must use the value reported on the estate tax return to avoid IRS penalties.
Difference between inherited assets and gifted assets
Inherited assets receive a step-up in basis to fair market value at the date of death. 2 If your parent bought a house in the Bay Area for $200,000 and it is worth $900,000 when you inherit it, your new tax basis becomes $900,000. You only pay capital gains tax on any gain above that stepped-up value.
Gifted assets keep the original owner's cost basis. If someone gifts you California real estate during their lifetime and it has significantly appreciated, you inherit their low purchase price as your basis. All past appreciation gets taxed when you sell — often at California's top ordinary income tax rate of up to 13.3%. 1
Gifting does not provide the same tax benefits as inheriting through a properly structured estate plan, revocable living trust, or community property trust — all common tools used by California estate planning attorneys.
Step-Up in Basis for Married Couples in California
California's community property laws provide a significant tax advantage for married couples. When one spouse dies, the surviving spouse can benefit from a full step-up on the entire property — not just half.
Full step-up under California community property law
As a community property state, California allows the surviving spouse to receive a full step-up in basis on both halves of community property after the other spouse dies. The fair market value of the entire property is reset at the date of death — not just the deceased spouse's portion.
For example, if you and your spouse bought a home in Los Angeles for $600,000 and it is worth $1,200,000 when one spouse dies, the surviving spouse's new cost basis becomes the full $1,200,000. Any sale near that price results in little or no taxable gain — potentially saving over $100,000 in combined federal and California state taxes.
Assets must have been acquired during marriage as community property to qualify. Property received as a gift or prior inheritance may not qualify. Estate planning with a community property trust can help preserve this advantage — consult a California-licensed estate attorney before making decisions about selling or transferring inherited real estate.
Proposition 19 and property tax reassessment
Beyond income taxes, California heirs must also consider property tax reassessment. Under Proposition 19, most inherited properties are now subject to reassessment at current market value. However, if a child inherits a parent's primary residence and uses it as their own primary residence within one year, they may qualify for a partial exclusion that limits the reassessment increase. The exclusion does not fully shield the heir from higher property taxes if the home's current value significantly exceeds the parent's assessed value plus $1,000,000.
This is an important California-specific consideration that does not exist at the federal level. Heirs to high-value properties in markets like San Francisco or Los Angeles should work with a California property tax consultant or attorney to evaluate their options before and after inheriting.
Selling Inherited Property in California
Selling inherited real estate in California often results in significantly lower capital gains taxes thanks to the step-up in basis rules. Review your options with a California-based financial advisor or CPA to find the best strategy for your tax bracket and situation.
Long-term capital gains treatment
Inherited property automatically qualifies for long-term capital gains treatment at the federal level, regardless of how long you hold it after inheriting. Federal long-term capital gains rates for 2025 are 0%, 15%, or 20% depending on your income. High earners may also owe the 3.8% Net Investment Income Tax.
California does not offer a preferential rate for capital gains — the state taxes them as ordinary income, at rates up to 13.3% for the highest earners. This makes the step-up in basis even more valuable for California residents, since minimizing the taxable gain directly reduces your exposure to California's high income tax rates.
Selling quickly versus holding: California considerations
Selling inherited property promptly after probate often minimizes capital gains tax exposure. 3 If you sell within 6 to 12 months of inheriting, the sale price is likely close to the stepped-up basis, resulting in little or no taxable gain.
Holding the property creates ongoing costs — California property taxes, insurance, and maintenance can easily run $1,500 to $3,500 per month on a typical Southern California or Bay Area home. If multiple heirs are involved, disagreements over whether to sell or rent can delay decisions and increase costs. Out-of-state heirs managing a California property face additional complexity.
Renting the property before selling triggers depreciation recapture rules that increase your tax liability. Weigh emotional ties against these financial realities and consult a CPA familiar with California tax law before deciding.
Tax Reporting for Inherited Property Sales in California
Required forms and professional help
- Report the federal sale on IRS Schedule D (Form 1040) and Form 8949 if you have a taxable gain.
- Report the same gain on your California state income tax return (Form 540). California conforms to federal basis rules but taxes the gain as ordinary income.
- Use the fair market value at the date of death as your new basis, per IRS and California Franchise Tax Board (FTB) requirements.
- If the executor filed a federal estate tax return with Form 8971, you must use that reported value as your basis.
- Note that California does not have a separate state estate tax, so only federal estate tax filing thresholds apply (over $13.61 million for 2024).
- Consult the California FTB website for state-specific guidance on reporting inherited property sales and any applicable adjustments.
- Work with a California-licensed CPA or estate attorney for complex situations involving trusts, community property, or multiple heirs.
Professional help reduces errors that could trigger penalties from both the IRS and the California Franchise Tax Board. Seek expert advice before filing if you are unsure about any part of this process.
Key Insights for California Heirs
Inherited houses in California often come with surprises. Many properties are decades old and may need significant repairs. Monthly holding costs for taxes, insurance, utilities, and maintenance can be substantial — especially in high-cost markets like Los Angeles or the Bay Area.
Proposition 19 has changed the property tax landscape for heirs, limiting the parent-child exclusion that previously shielded many California inheritances from reassessment. Understanding both the income tax step-up benefit and the property tax reassessment rules is essential for making informed decisions.
Confusion over these rules can create fear about capital gains or property taxes where careful planning could minimize or eliminate the burden. Working with a California estate attorney, CPA, and knowledgeable real estate professional helps ensure all paperwork — from the probate court filing to the FTB return — is handled correctly.
Conclusion
The step-up in basis offers real savings when you inherit property in California. You can often avoid large capital gains taxes by using the fair market value at the date of death as your new cost basis. California's community property rules amplify this benefit for surviving spouses. Careful planning — including understanding Proposition 19's property tax implications — helps families keep more of their inheritance.
If you are dealing with inherited real estate in California and want a straightforward path forward, KDS Homebuyers purchases homes directly from homeowners for cash. Visit kdshomebuyers.net to request a free, no-obligation cash offer and learn how we can help simplify the process during a difficult time.
FAQs
1. What does step-up in basis mean for inherited property in California?
It resets your tax basis to the property's fair market value on the date of death under federal law. California conforms to this rule, so your taxable gain is calculated from that new, higher basis — not what the original owner paid.
2. How does California's lack of a preferential capital gains rate affect me?
California taxes capital gains as ordinary income at rates up to 13.3%. The step-up in basis is especially valuable here because minimizing the taxable gain directly reduces your California state tax bill.
3. How does Proposition 19 affect inherited property in California?
Proposition 19 (effective February 16, 2021) limits the parent-child property tax exclusion. Heirs who inherit a parent's home must use it as their primary residence to qualify for a partial reassessment exclusion — and even then, high-value properties may see increased property tax bills.
4. Does the step-up in basis apply to both halves of a California community property home?
Yes. As a community property state, California allows a full step-up on both halves of the home when one spouse dies, not just the deceased's half. This can result in significant tax savings for the surviving spouse.
5. Can I use an alternate valuation date for inherited California real estate?
Yes. Estates can use an alternate valuation date six months after death if it lowers estate taxes or results in lower asset values, which may reduce capital gains taxes when you sell.
6. Should I consult a professional before selling inherited California property?
Absolutely. A California-licensed CPA or estate attorney can help you navigate both IRS rules and California Franchise Tax Board requirements, Proposition 19 implications, and maximize available tax benefits.
