Probate · Inherited Property · California
What Is a Step-Up in Basis When You Inherit a House in CA?
Justin Borges, DRE #01940318 · 8 min read
Internal Revenue Code Section 1014 generally bases inherited real estate on fair market value at the date of death, subject to exceptions and alternate-valuation rules. A qualified appraiser and tax adviser can help document the applicable value and basis. Selling near that supported value may limit post-death gain, but the actual tax result depends on the verified basis, sale amount, costs and later adjustments.
What You Will Learn
How Step-Up in Basis Actually Works
Under federal tax law (Internal Revenue Code Section 1014), when you inherit real estate, your "basis" in that property (the number the IRS uses to calculate taxable gain when you sell) is generally not what the deceased owner originally paid for the home. Instead, it is generally based on the property's fair market value on the date the owner died, subject to exceptions and alternate-valuation rules (IRS Publication 551, 2025 edition checked September 24, 2026).
Capital gain is generally measured from the sale proceeds and adjusted basis, subject to selling expenses and other tax adjustments. If your parents bought a house in Highland Park in 1985 for $95,000 and its date-of-death fair market value is $950,000, a simplified inherited basis example starts at $950,000 rather than $95,000. Confirm the basis, eligible adjustments, and reporting with a qualified tax professional.
If you sell the home shortly after inheriting it near the documented date-of-death value, the taxable gain may be limited. The IRS also recognizes exceptions and alternate valuation rules, so the date-of-death figure should come from appropriate estate and tax records rather than an automated home estimate.
If you inherited a home in Los Angeles County, call (213) 262-5092 to discuss the real estate sale strategy. A comparative market analysis can help with pricing, but a CPA or qualified appraiser should confirm the valuation and basis used for tax reporting.
What Does a Step-Up in Basis Look Like in a Los Angeles Sale?
Here is how the math plays out on a typical Northeast Los Angeles inheritance scenario, using a property purchased decades ago and inherited today.
Without the Step-Up (Hypothetical, if Original Basis Applied)
With the Step-Up in Basis (What Actually Happens)
In this simplified example, the inherited basis changes the preliminary gain calculation from $813,000 to $15,000 before selling expenses and other adjustments. Your actual basis, deductible costs, exclusions, and tax result can differ. For real estate pricing and sale-planning questions, text or call (213) 262-5092, then confirm the tax calculation with your CPA.
Plan the Next Step for an Inherited California Home
Compare the sale, valuation, timing, probate, trust, and property-condition questions that may shape your decision.
Review Inherited-Property Help →What Is My Home Worth in 2026?
Get a current comparative market analysis based on nearby sales. This is useful for sale planning but does not replace a qualified date-of-death appraisal or tax advice.
Request a Current Market Analysis →What the Step-Up Doesn't Protect You From
The step-up in basis is powerful, but it is not unlimited protection. A few situations reduce or complicate the benefit, and I walk every probate client through these before they list.
The clock starts on the date of death, not the sale date
If you hold the inherited property for two or three years while values keep climbing, you owe capital gains tax on the appreciation that happens after the date of death, not before it. The step-up only resets the basis once, at inheritance. Any additional appreciation between that date and your eventual sale date is taxable gain in the normal way.
Renovations and capital improvements need documentation
If you put $80,000 into a kitchen and bathroom remodel before selling, that amount can generally be added to your stepped-up basis, further reducing taxable gain. But you need receipts, contracts, and permits on file. Heirs who renovate without keeping records often overpay on taxes simply because they cannot substantiate the improvement costs later.
Holding costs are not part of the basis calculation
Property taxes, insurance, and utility bills paid while the estate holds the home do not increase your basis and are not automatically deductible against the sale. They are simply carrying costs. This is one reason many heirs choose to sell sooner rather than later: the tax benefit of the step-up does not offset the ongoing cost of holding an empty property.
Each inherited asset needs its own basis record
IRC Section 1014 can apply to qualifying inherited real estate and personal property, but each asset needs its own valuation and documentation. Furniture, vehicles, collectibles, jewelry, and art are handled separately from the home sale. A qualified appraiser, estate attorney, and tax professional can identify the appropriate date-of-death evidence and explain how it belongs in the estate inventory and tax file.
Not sure which of these exceptions applies to your estate? Text me at (213) 262-5092 with a brief description of the property and I will walk through your specific situation.
What Is the Community Property Double Step-Up in California?
California is a community property state, and this creates an added benefit for a specific situation: a surviving spouse inheriting a home that was community property with the deceased spouse.
Under Internal Revenue Code Section 1014(b)(6), qualifying community property can receive date-of-death basis treatment for both the deceased spouse's half and the surviving spouse's half when the statutory requirements are met. This is often called the "double step-up." Eligibility depends on the ownership and community-property facts, so confirm the result with a CPA or estate attorney. (IRS, Internal Revenue Code section 1014(b)(6), current text checked September 24, 2026.)
In practice, this means a surviving spouse who later sells a long-held community property home in Pasadena, Glendale, or anywhere in LA County can benefit from a full basis reset on the entire property value, not just half of it. Whether a specific property qualifies as community property depends on how and when it was acquired and titled. This is a question for a CPA or estate attorney, not a rule to assume applies automatically.
Community Property Double Step-Up: Surviving Spouse Example
Should You Sell an Inherited House Now or Hold It?
One point worth stating plainly: IRC § 1223(11) generally treats inherited property as held for more than one year for federal holding-period purposes. Confirm how that rule applies to your return with a qualified tax adviser. The timing decision should focus on the documented basis, later appreciation, carrying costs and family goals, not an assumed one-year deadline.
Selling shortly after inheritance may limit post-death appreciation and carrying costs, but it is not automatically the best tax or family decision. The right timing depends on the documented basis, property condition, occupancy, estate authority, beneficiary goals, and advice from the family's tax and legal professionals.
Reasons to Sell Sooner
Reasons to Consider Holding
One California-specific wrinkle worth flagging: Proposition 19 changed the rules around transferring a parent's low property-tax basis to a child who keeps the home as a primary residence. That is a separate issue from the income-tax step-up in basis discussed throughout this article; Prop 19 governs your ongoing property tax bill if you keep the home, not your capital gains exposure if you sell it. If holding the property is on the table, that reassessment question needs its own conversation with a professional before you decide (Proposition 19, 2020).
The Los Angeles County Assessor's office publishes an online estimator for the new base year value under a Prop 19 transfer (LA County Assessor, 2026), and the California State Board of Equalization publishes statewide implementation guidance for county assessors (Board of Equalization, 2026), so both agencies are worth checking before you decide.
Some heirs sell to stop carrying costs or divide proceeds, while others hold the property for housing or rental income. If you want to compare those real estate choices, including the sale implications of community-property ownership, talk to Justin directly at (213) 262-5092 and confirm the tax treatment with a CPA or estate attorney.
Plan the Next Step for an Inherited California Home
Compare the sale, valuation, timing, probate, trust, and property-condition questions that may shape your decision.
Review Inherited-Property Help →Frequently Asked Questions
What is a step-up in basis on an inherited house in California?
Internal Revenue Code section 1014 generally bases inherited property on its fair market value at the date of death, subject to exceptions and alternate-valuation rules. A qualified tax adviser should confirm the basis used for your property.
Do I owe capital gains tax if I sell an inherited house right away?
Not necessarily. Taxable gain generally depends on the sale amount, the verified inherited basis, allowable selling costs and any later basis adjustments. A sale near the supported date-of-death value may produce a smaller gain, but a tax professional should calculate the actual result.
Does the step-up in basis apply if I hold the house for several years?
The basis reset happens once, on the date of death. Appreciation that occurs after that date, while you hold the property, is taxable gain when you eventually sell, the same as with any other asset.
What is the community property double step-up in California?
Under IRC Section 1014(b)(6), a surviving spouse in a community property marriage can receive a full step-up on the entire home, not just the deceased spouse's half. Whether a property qualifies depends on how it was acquired and titled; confirm with a CPA or estate attorney.
Is step-up in basis the same as the Proposition 19 property tax rules?
No. Step-up in basis affects capital gains (income) tax when you sell. Proposition 19 affects your ongoing property tax bill if you keep the home. They are separate rules that require separate analysis.
Can renovations increase my basis in an inherited house?
Yes. Capital improvements made after inheriting, such as a kitchen remodel, generally add to your stepped-up basis and further reduce taxable gain, provided you keep receipts, contracts, and permits to document the cost.
How do I find out the fair market value of a home on the date someone died?
A qualified appraiser can prepare a retrospective date-of-death appraisal. A real estate agent can help locate historical comparable sales for discussion, but a current comparative market analysis is not a tax-basis determination. Ask your tax adviser what valuation support is appropriate.
Related Resources
Ready to Talk?
If you are deciding whether to sell or hold, Justin can help with current sale pricing, property preparation and coordination with the qualified appraiser and tax adviser you select.
- Licensed CA REALTOR since October 2013, DRE #01940318
- $200M+ closed, 106% average list-to-sale ratio
- Experienced with probate, trust, and inherited-property sales across Los Angeles County
Text or call (213) 262-5092 with questions about an inherited property.
