The two big tax breaks on inherited California property are completely different things, and they collide in almost every probate sale I work. I'm Brian Cooper, REALTOR(R) at eXp Realty (DRE# 01434286). This page puts the federal step-up in basis (IRC 1014) and California's Prop 19 parent-child exclusion side by side, with worked examples and a decision tree for sell-versus-hold.
Quick Answer
The two tax breaks on inherited California real estate operate independently and are governed by different bodies of law. Federal step-up basis (Internal Revenue Code Section 1014) resets the cost basis of inherited property to fair market value at the date of death. It applies whether the heir sells immediately or holds. There is no income limit and no use requirement.
California's Prop 19 parent-child exclusion (California Constitution Article XIII A, Section 2.1, effective February 16, 2021) preserves the parent's lower Prop 13 assessed value only if the inheriting child uses the property as their principal residence within one year of transfer and files a homeowner's exemption. The exclusion is capped: FMV at transfer minus (assessed value + $1,044,586 in 2026) gets added to the new assessment. Above that cap, the property reassesses to FMV.
Two different tax breaks, two different governments
Step-up basis is federal income tax. It reduces or eliminates the capital gain you owe to the IRS when you sell the inherited property. The benefit is realized only at sale, but it applies whether you sell or not (your basis is reset regardless).
Prop 19 is California property tax. It reduces your annual ad valorem property tax bill if you qualify (parent-child relationship plus primary residence use within 12 months). The benefit is realized every year you own the property and use it as your home.
Different bodies of law, different governments, different qualification rules, different calculations. Heirs frequently confuse the two and make decisions that optimize for one while losing the other. Don't.
When step-up basis applies (always at death)
Internal Revenue Code Section 1014(a) provides that the basis of property acquired from a decedent is its fair market value at the date of the decedent's death. There is no income limit. There is no holding period. There is no requirement that the heir live in the property. The basis steps up automatically by operation of law.
Practical effect: if your parent bought a home in 1995 for $200,000 and died in 2026 when the home was worth $1,200,000, your basis in that home is $1,200,000 — not $200,000. If you sell within a few months at $1,200,000, your federal capital gain is approximately zero, and your federal capital-gains tax bill is approximately zero. The $1,000,000 of appreciation your parent accumulated never gets taxed.
If the property was community property held in California, IRC 1014(b)(6) provides a 'double step-up' on both halves at the first spouse's death. Both spouses' halves step up to FMV. If the property was joint tenancy, only the deceased spouse's half steps up. This distinction matters enormously and is often missed.
When Prop 19 applies (kids, primary, cap)
California's Proposition 19, passed in November 2020 and effective February 16, 2021, replaced the prior Proposition 58 / 193 parent-child and grandparent-grandchild exclusions. Under Prop 19, the prior assessed value of a transferred home carries over to the inheriting child only if two conditions are met.
First, the child must use the home as their primary residence within one year of transfer and file a homeowner's exemption (BOE-266). Second, the FMV at transfer cannot exceed the parent's assessed value plus $1,044,586 (the 2026 cap, indexed annually). If FMV exceeds that cap, the excess gets added to the new assessed value.
If the child uses the home as primary residence within a year AND FMV at transfer is below the cap, the assessment carries over unchanged. If the child doesn't move in within a year, OR if the property is rented out, the entire assessment resets to FMV with no exclusion at all.
Worked example: $200K basis, $1.2M FMV, sell vs hold
Parent bought a Ventura County home in 1995 for $200,000. Died in 2026. FMV at death: $1,200,000. Parent's assessed value at death (Prop 13 base + 2% annual): roughly $320,000. Parent's annual property tax: roughly $4,000.
Scenario A: child sells immediately at $1,200,000. Federal capital gain = $1,200,000 sale price minus $1,200,000 stepped-up basis = $0. Federal capital gains tax: $0. California capital gains tax: $0 (California conforms to IRC 1014). Net to child (before commission and closing costs): $1,200,000. Property tax: irrelevant (sold).
Scenario B: child moves in as primary residence within 12 months. FMV $1,200,000. Cap = parent's $320,000 + $1,044,586 = $1,364,586. FMV is below cap, so the assessed value carries over at $320,000. Child's annual property tax stays at roughly $4,000 — a savings of approximately $10,000 per year versus reassessment to FMV.
Scenario C: child rents the property out. Property reassesses to $1,200,000. Annual property tax jumps to roughly $15,000. Step-up basis still applies if child later sells. Decision: rental income needs to clear the higher tax bill, or the financial picture turns negative.
Decision tree: sell now, hold and rent, or primary residence
Three paths after inheriting a California property. Each has its own financial profile.
| Path | Step-up basis benefit | Prop 19 benefit | Net financial picture |
|---|---|---|---|
| Sell within 12 months | Full — gain is approximately zero | N/A (sold) | Maximum liquidity, minimal tax |
| Move in as primary within 12 months | Full at later sale (preserved) | Full (assessment carries over up to cap) | Lowest ongoing carrying cost |
| Hold as rental | Full at later sale (preserved) | None (reassesses to FMV) | Higher property tax; depreciation deductions partially offset |
| Hold vacant | Full at later sale | None (no homeowner's exemption) | Worst: high property tax, no income |
Sibling math: dividing inherited property
Most inherited California homes have more than one heir. When three siblings each receive 1/3 and only one wants to keep the home, the operational question is how to fund the buyout of the other two while preserving any Prop 19 benefit for the keeping sibling.
Step-up basis applies to all three siblings on their 1/3 interest. Prop 19 parent-child exclusion can apply to the sibling who moves in, but only on the share they own. If sibling A buys out siblings B and C, sibling A owns 100% — but the buyout itself is a transfer between non-parent-child parties for the B and C shares. Whether Prop 19 covers the full 100% depends on the structure of the buyout (cash from estate funds vs cash from sibling A's separate funds).
This is exactly the kind of question to walk through with a probate attorney before signing the buyout agreement. A poorly structured buyout can cost the keeping sibling tens of thousands of dollars in additional property tax annually.
Why you should not gift before death
Some parents try to 'gift' their home to a child during life to 'avoid probate.' Bad move on federal taxes. Under IRC 1015, a gift transfers the donor's basis to the donee (carryover basis), not the FMV at gift. The recipient inherits the low basis, not a step-up.
Same Ventura County home, $200,000 basis, FMV $1,200,000 at the time of the parent's death. If parent gifted to child during life, child's basis is $200,000. Child sells at $1,200,000: gain is $1,000,000, federal capital gains tax is roughly $150,000 to $200,000. Same property, same buyer, same sale, $150K+ tax bill that simply waiting for death would have eliminated.
California Prop 19 parent-child exclusion also treats inter-vivos gifts and post-death inheritances similarly, so the property-tax advantage doesn't compensate for the federal capital-gains loss. Probate avoidance can be achieved through a properly funded revocable living trust without sacrificing step-up basis.
Probate path vs trust path
If the parent's home was held in a properly funded living trust (grant deed recorded transferring the property to the trust during life), the successor trustee distributes or sells without probate court involvement. Step-up basis still applies at parent's death. Prop 19 still applies on the same rules. Faster and cheaper.
If the parent's home was titled individually at death — even if a trust document existed but the property was never retitled — the home goes through California probate. Step-up basis still applies (it's federal and date-of-death based, not path-dependent). Prop 19 still applies on the same rules. Slower and more expensive.
The probate-vs-trust path doesn't change the tax result; it changes the timeline and cost. Trust is preferred for that reason, not because the trust changes the tax math.
California proposition history: 60 / 90 / 110 / 19
Context for older Ventura County homeowners. California's parent-child property tax rules have shifted several times. Proposition 58 (1986) created the original parent-child exclusion. Proposition 193 (1996) added grandparent-grandchild. Both were essentially unlimited.
Proposition 19 (effective February 2021) replaced both with the tighter rules summarized above. Transfers completed before February 16, 2021 (meaning the death occurred before that date) are governed by old Prop 58/193 rules and may have grandfather rights. Transfers after that date follow Prop 19.
Propositions 60, 90, and 110 were unrelated rules for over-55 base-year value transfers (different topic), now also replaced by Prop 19's intra-California portability provisions. If you're an older heir who is also selling your own longtime home, ask about the Prop 19 base-year transfer rules separately.
When to call an attorney or CPA
I'm not a CPA, attorney, or tax advisor. Use the framework above to ask better questions, not to make final decisions. Talk to a probate attorney (see /estate-planning-probate-attorney-directory-ventura-county) before signing any inheritance documents, and to a CPA before structuring a buyout or gift.
What I can do: pull the parent's current Ventura County assessor record, estimate FMV at the date of death, run a sell-versus-hold P&L, and coordinate with your attorney on a sale or buyout timeline.
Frequently Asked Questions
Does step-up basis apply if my parent had a living trust?
Yes. IRC 1014 applies to property acquired from a decedent regardless of probate vs trust path. The trust changes the administrative path, not the federal tax result.
Does step-up basis have an income limit?
No. Step-up applies regardless of the heir's income, the decedent's estate size (below the federal estate tax exemption), or how the heir uses the property.
Can I take Prop 19 if I rent the inherited home out?
No. Prop 19 parent-child exclusion requires the inheriting child to use the home as their primary residence within 12 months and file a homeowner's exemption. Rental use disqualifies.
What is the 2026 Prop 19 cap?
$1,044,586. The cap indexes annually based on the California inflation factor. Verify the current year's cap with the California State Board of Equalization.
Does Prop 19 apply to a trust transfer?
Yes. Prop 19 applies to transfers from parent to child regardless of whether the path is probate, trust, or inter-vivos gift. The same eligibility rules and cap apply.
What if my parent died before February 16, 2021?
Transfers completed before February 16, 2021 are governed by the prior Prop 58 / 193 rules, which had no cap and no primary-residence requirement. Different rules entirely. Pull the date of death first.
Should I gift my home to my kids to avoid Prop 19?
Almost never. Gifting transfers your low basis (no step-up), creating a large federal capital gains tax exposure for your kids at sale. Properly funded revocable living trust avoids probate without sacrificing step-up.
What if I'm only inheriting 1/3 of the home?
Step-up basis applies to your 1/3 share. Prop 19 parent-child exclusion can apply to your 1/3 share if you move in as primary residence. Buyout of the other siblings is a separate transfer with different rules. Talk to a probate attorney before structuring.
