How does the Prop 19 exclusion amount work exactly?

The exclusion creates a "no-reassessment zone" around the parent's assessed value. If the home's market value is within $1,044,586 of the parent's assessed value, no reassessment occurs at all — the child inherits the parent's Prop 13 base year value unchanged. If the market value exceeds that threshold, the new assessed value is set at market value minus the $1,044,586 exclusion. Example: parent assessed at $300,000, market value $1,500,000. Threshold = $300,000 + $1,044,586 = $1,344,586. Since $1,500,000 > $1,344,586, the new assessed value = $1,500,000 − $1,044,586 = $455,414. The child pays taxes on $455,414, not $1,500,000.

What happens if the child does NOT occupy the home as a primary residence?

Full reassessment at current market value — no exclusion whatsoever. If the child rents out the inherited home, keeps it as a vacation home, or fails to establish it as a primary residence within 1 year, the county will reassess it at its fair market value. For a home appreciated from $100,000 (assessed) to $2,000,000 (market), this means property taxes jump from ~$1,200/year to ~$23,000/year immediately. This is the most commonly overlooked deadline in California estate planning.

Does the exclusion apply to investment properties or vacation homes?

No. Prop 19 eliminated the unlimited parent-child exclusion that existed under Prop 58 for all property types. Under Prop 19, only a primary residence qualifies — and only for the child who actually occupies it as their primary home. Investment properties, vacation homes, commercial properties, and rentals all receive full reassessment at market value. This was the most significant change from Prop 58, where children could inherit rental portfolios and commercial property at the parent's low assessed value.

What forms do I need to file?

File Form BOE-19-P (Claim for Reassessment Exclusion for Transfer Between Parent and Child — Proposition 19) with your county assessor within 3 years of the transfer (or by the first subsequent property tax delinquency date, whichever is earlier). Also file a Homeowner's Exemption claim (Form BOE-266) to establish primary residence. Both forms are available from the California State Board of Equalization (boe.ca.gov) and each county assessor's office. The 1-year window to establish primary residence is separate from the 3-year form filing window.

Is the $1,044,586 exclusion amount indexed to inflation?

Yes. The exclusion amount is adjusted annually by the California Consumer Price Index (CPI), subject to a 2% ceiling that also applies to Prop 13 assessed value increases. The 2026 amount is $1,044,586 — up from the initial $1,000,000 in 2021. The exclusion grows slowly and will eventually allow more inherited homes to qualify for the full exclusion as values rise and exclusions adjust.

How does Prop 19 interact with step-up in cost basis?

At death, the inherited home receives a stepped-up cost basis to fair market value — regardless of whether Prop 19 reassessment occurs or not. This means the capital gains tax clock resets to zero on the date of death. If the child intends to sell the home quickly rather than live in it, the Prop 19 property tax reassessment is largely irrelevant — the gain on sale is small (step-up eliminates most appreciation). The Prop 19 exclusion matters most when the child plans to keep and live in the home long-term, because the ongoing property tax difference compounds over decades.

Tax

California Prop 19 Inherited Home Calculator — Property Tax After Transfer

Calculate the new assessed value and annual property tax when inheriting a California home under Proposition 19 — including whether the $1,044,586 exclusion prevents full reassessment.

By The FinCalc TeamUpdated May 29, 2026

California's Proposition 19 (effective February 16, 2021) dramatically changed the rules for inheriting a parent's home. Under the old Prop 58, children could inherit any property — including investment properties and vacation homes — and keep the parent's low Prop 13 assessed value indefinitely. Under Prop 19, only the primary residence qualifies, and only up to a limited exclusion amount. For 2026, that exclusion is $1,044,586. If the home's market value exceeds the parent's assessed value by more than $1,044,586, a partial reassessment occurs. Get this wrong by a few hundred thousand dollars and the annual property tax difference is thousands per year.

How California Prop 19 Inheritance Works

The Pre-Prop 19 World (Prop 58)

Under Prop 58 (1986–2021), a parent could transfer ANY California real property to a child with no reassessment — regardless of market value. A child could inherit a $3 million rental property with a $100,000 Prop 13 assessed value and pay taxes on $100,000 forever. This was a massive, uncapped tax shelter.

The Prop 19 World (2021–present)

Prop 19 narrowed the exclusion to the primary residence only, with a capped exclusion:

| Situation | Prop 58 (old) | Prop 19 (current) | |-----------|--------------|-------------------| | Child occupies as primary home | Full exclusion, no limit | Exclusion up to $1,044,586 above assessed value | | Child rents out or sells | Full exclusion | Full reassessment at market value | | Investment property | Full exclusion | Full reassessment | | Vacation home | Full exclusion | Full reassessment |

The Math

No-reassessment threshold = Parent's assessed value + $1,044,586

If market value ≤ threshold:
  New assessed value = Parent's assessed value (no change)

If market value > threshold:
  New assessed value = Market value − $1,044,586

Example — $1.5M home, parent assessed at $300K:

Threshold = $300,000 + $1,044,586 = $1,344,586
Market value ($1,500,000) > threshold → partial reassessment
New assessed value = $1,500,000 − $1,044,586 = $455,414
Annual tax at 1.15%: $455,414 × 1.15% = $5,237 (vs $23,000 at full reassessment, vs $3,450 at parent's rate)

Who Should Use This Calculator

If you are inheriting a California home and plan to live in it, use this calculator immediately to understand: (1) whether full or partial reassessment occurs, (2) what the new annual tax will be, (3) what the 1-year deadline means for your decision timeline, and (4) whether the savings justify the lifestyle decision to make it your primary residence.

If you are doing estate planning with a California home, this calculator quantifies the property tax cost of different bequest strategies. Leaving the home to a child who will live in it is very different from leaving it to a child who won't — the annual tax difference compounds over decades.

If you are comparing keeping the home vs. selling quickly, remember the step-up in basis: capital gains on inherited property resets to zero at death. If you sell within a year, there's almost no taxable gain regardless of how much the property appreciated. The Prop 19 exclusion only matters if you're keeping and living in the home long-term.

If you are a California homeowner planning generational wealth transfer, note that Prop 19 has made lifetime gifting (versus dying with the home) more costly from a property tax standpoint — gifting triggers Prop 19 without the step-up in basis benefit of dying. The Prop 19 exclusion applies to transfers at death AND to certain lifetime transfers.

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Retirement State Tax Comparison Calculator — California's low property tax (due to Prop 13) combined with high income tax creates a unique trade-off vs. other states

Understanding the Inputs

Parent's Current Assessed Value: The Prop 13 base year value for the parent, as it stands today after annual 2% inflation adjustments. This is the "Assessed Value" or "Net Taxable Value" shown on the parent's property tax bill — typically far below the current market value for long-time homeowners. A home purchased in 1985 for $200,000 might have a current Prop 13 assessed value of only $350,000–$500,000 while being worth $2–3 million at market. This is the number you carry over (if the market value is within the exclusion window).
Home's Current Market Value: The fair market value at the time of transfer. The county assessor will independently determine this value, typically using comparable sales. For planning purposes, use a recent appraisal, Zillow/Redfin estimate, or recent comparable sales. The difference between this value and the parent's assessed value is what the $1,044,586 exclusion is measured against.
Combined Property Tax Rate: The base Prop 13 rate (1%) plus any local general obligation bonds, Mello-Roos CFD assessments, and special assessments. These vary by county and school district. Los Angeles County typical combined rates: 1.15%–1.35%. Bay Area counties: 1.10%–1.35%. Check the parent's tax bill for the exact rate — it is usually listed as the "Total Tax Rate" or computed from the "Total Tax" divided by "Net Assessed Value."
Child Will Use as Primary Residence: The Prop 19 exclusion ONLY applies if the child establishes the inherited home as their principal residence within 1 year of the transfer. If the child plans to rent out the property, use it as a vacation home, or sell it, there is no exclusion — the full reassessment at market value occurs. The child must also file a Homeowner's Exemption claim and, if applicable, a Parent-Child Transfer claim (Form BOE-19-P) with the county assessor within the 1-year window.

Frequently Asked Questions

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The FinCalc Team

Personal Finance Experts

The FinCalc team is a group of personal finance writers, analysts, and engineers dedicated to building accurate, transparent financial calculators. Every formula is verified against industry standards and explained in plain language.

Last reviewed and updated: May 29, 2026