CA Proposition 19: Parent-Child + Portable Base Guide

TL;DR

California Proposition 19 (Home Protection for Seniors, Severely Disabled, Families, and Victims of Wildfire or Natural Disasters Act) was approved by California voters on November 3, 2020, and amended Article XIIIA §2.1 of the California Constitution. The measure has two operative components with different effective dates. Effective February 16, 2021, the parent-child and grandparent-grandchild transfer exclusions from reassessment were dramatically narrowed to family homes and family farms only, subject to a $1 million exclusion cap on the difference between fair market value and factored base year value — a cap that is adjusted biennially and stands at $1,044,586 for transfers occurring February 16, 2025 through February 15, 2027 per BOE Letter To Assessors 2025/009. Effective April 1, 2021, the base year value transfer program for homeowners aged 55 or older, severely disabled persons, and victims of wildfire or governor-declared disasters was expanded to allow up to three lifetime transfers (unlimited for disaster victims), to any replacement residence anywhere in California, including replacement homes of greater value than the original. Implementing statutes are Revenue and Taxation Code §63.2 (intergenerational transfers) and §69.6 (base year value transfers), added by SB 539 (Stats. 2021, ch. 427). Propositions 58, 193, 60, 90, and 110 were repealed and replaced.

What Proposition 19 changed and when

Proposition 19 amended the California Constitution to substantially restructure two long-standing property-tax exclusion programs. Both programs allow a property's assessed value (which is protected from year-over-year escalation under Proposition 13) to survive a change in ownership that would otherwise trigger reassessment to current fair market value. The changes take effect on two operative dates specified in the Constitution, and those dates cannot be extended by the State Board of Equalization or the Legislature. Property transferred on or before February 15, 2021 (parent-child) or before April 1, 2021 (base year transfer) fell under the prior rules of Propositions 58, 193, 60, 90, and 110; property transferred on or after those dates falls under Proposition 19.

The intergenerational transfer exclusion (parent-child under Prop 58 and grandparent-grandchild under Prop 193) was narrowed. The base year value transfer program (senior/disabled under Props 60, 90, and 110) was expanded. The two operate independently, and a homeowner can benefit from both in a single lifetime — for example, a 65-year-old parent could transfer their base year value to a new replacement residence in a different county under §69.6, and later transfer their family home to a child under §63.2.

The parent-child and grandparent-grandchild exclusion — §63.2

Effective February 16, 2021, the intergenerational transfer exclusion under Revenue and Taxation Code §63.2 (added by SB 539) applies only to family homes and family farms — not to investment property, vacation homes, commercial real estate, or any other property type. Family homes and family farms have distinct qualifying tests under §63.2: family homes must be the transferor's principal residence AND become the transferee's primary residence within one year, while family farms have separate qualifying rules that do not require a residence. The prior Proposition 58 exclusion allowed transfers of up to $1 million in assessed value of non-primary-residence property plus a primary residence of any value. Proposition 19 eliminated the non-primary-residence exclusion entirely.

For a family-home exclusion under §63.2, the property must be the transferor's principal residence and become the transferee's principal residence within one year of the transfer, and the transferee must continue to occupy it as a family home. The transferee must file for the homeowners' exemption or the disabled veterans' exemption within one year of the transfer or purchase to receive the exclusion as of the transfer date. Proposition 19 also covers qualifying family farms, which have separate qualifying requirements and should not be described as principal-residence claims. For grandparent-grandchild transfers, all of the parents of the grandchild who qualify as children of the grandparent (other than stepparents) must be deceased as of the date of the transfer (§63.2(g)(2) preserves the pre-existing Prop 193 middle-generation-deceased rule for parents but not stepparents).

The $1M exclusion cap — inflation-adjusted biennially

Under §63.2, the exclusion is limited to the family home's factored base year value plus a $1 million adjustment. If the fair market value at transfer exceeds the factored base year value plus the $1 million cap, the excess is added to the factored base year value to establish the new taxable value. The $1 million cap is not a flat dollar figure — under Proposition 19 and RTC §63.2, the cap is adjusted biennially by the change in the House Price Index for California published by the Federal Housing Finance Agency, not the California Consumer Price Index.

The figures above are point-in-time snapshots — verify the current cap against BOE Letter To Assessors publications before advising a specific transaction. A worked example clarifies the mechanics: a family home has a factored base year value of $300,000 and a fair market value of $1,800,000 at transfer to a qualifying child in 2026. The $1,044,586 exclusion cap adds to the $300,000 factored base year value to produce an exclusion ceiling of $1,344,586. The fair market value of $1,800,000 exceeds this ceiling by $455,414. The child's new taxable value is $300,000 + $455,414 = $755,414 — substantially higher than the parent's prior $300,000 but still far below the $1,800,000 that would apply without any exclusion.

Filing requirements and BOE claim forms

To claim the parent-child exclusion under Proposition 19, the transferee files BOE-19-P (Claim for Reassessment Exclusion for Transfer Between Parent and Child Occurring On or After February 16, 2021) with the County Assessor where the property is located. For grandparent-grandchild transfers, the applicable form is BOE-19-G. Filing deadlines: within three years of the transfer date, OR before any subsequent transfer to a third party (whichever is earlier), OR within six months after the mailing of the Assessor's supplemental or escape assessment notice issued after the initial deadline. Late filings receive prospective relief only, beginning with the assessment year in which the claim is filed.

The transferee must also file for the homeowners' exemption or disabled veterans' exemption within one year of the transfer to establish qualifying use of the family home. The exclusion is conditional on continued qualifying use — if the child ceases to use the home as their primary residence, the exclusion is removed and the property is reassessed to the new base year value established at the initial transfer. Cross-links to the underlying property-tax framework the exclusion operates within — see our California supplemental property tax bill mechanics guide — clarify how post-transfer assessment adjustments flow through to the property owner.

The base year value transfer program — §69.6

Effective April 1, 2021, Revenue and Taxation Code §69.6 (also added by SB 539) provides a substantially expanded base year value transfer program. The program allows an eligible homeowner to transfer the factored base year value of their original primary residence to a replacement primary residence, avoiding reassessment of the replacement property to current fair market value.

Eligibility requires the claimant, at the time of sale of the original property, to be at least 55 years old, or severely disabled (BOE-19-DC certificate of disability required, distinct from "severely and permanently disabled" under prior law), or a victim of a wildfire or governor-declared disaster. Only one spouse must meet the age or disability requirement. The original property must have been eligible for the homeowners' or disabled veterans' exemption, and the claimant must own and reside in the original property at the time of sale (or purchase or new construction of the replacement within two years of the sale).

Three lifetime transfers — a major expansion

The most significant change under Proposition 19 is the increase in permitted base year value transfers from one under Propositions 60/90/110 to three under §69.6 for age-or-disability claims. There is no limit on the number of transfers for wildfire and disaster victims — an owner displaced multiple times may claim the exclusion each time. Additional expansions eliminate the county restrictions that limited Props 60/90 to specific counties: a replacement primary residence may be located anywhere in California under §69.6. Prior law required the replacement to be of equal or lesser value than the original; §69.6 permits a more expensive replacement, with the excess added to the transferred factored base year value.

Claim forms are BOE-19-B for the age-55-or-older claim and BOE-19-D for the severely-disabled claim (submitted together with BOE-19-DC certificate of disability). Applications must be filed within three years of the replacement's purchase or new construction, and the claimant must own and occupy the replacement as their principal residence at the time of filing. Late filings receive prospective relief only, beginning with the assessment year in which the claim is filed.

What was repealed

Proposition 19 repealed and replaced multiple long-standing exclusions in a single measure. Proposition 58 (parent-child transfer of up to $1 million assessed value of non-primary-residence property plus primary residence of any value) is repealed for transfers on or after February 16, 2021. Proposition 193 (grandparent-grandchild transfer, middle generation deceased) is repealed for transfers on or after the same date, though §63.2 preserves the middle-generation-deceased requirement for grandparent-grandchild claims. Propositions 60, 90, and 110 (senior/disabled base year value transfer with one-time limit, equal-or-lesser-value replacement, and specific-county restrictions) are all replaced by §69.6 effective April 1, 2021. Proposition 19 is not retroactive — transfers that qualified under the prior propositions and were completed before the operative dates remain valid under the prior rules. For related California property-tax framework guides that intersect with Prop 19, see our supplemental property tax bill mechanics guide.

Frequently Asked Questions

Can Proposition 19 apply to a rental property I inherited from my parents?

No. Effective February 16, 2021, the parent-child exclusion under §63.2 applies only to a family home (the transferor's principal residence that becomes the transferee's principal residence within one year) and to family farms. Investment properties, rental properties, vacation homes, and commercial real estate no longer qualify. A rental property inherited from a parent will be reassessed to current fair market value regardless of the parent's factored base year value, subject only to normal change-of-ownership rules. This eliminates a significant tax-planning strategy that existed under the pre-Prop-19 §63.1 exclusion.

What is the current $1M cap for transfers in 2026?

For transfers occurring between February 16, 2025 and February 15, 2027, the adjusted exclusion cap is $1,044,586 per BOE Letter To Assessors 2025/009. The cap is adjusted biennially to reflect the change in the House Price Index for California published by the Federal Housing Finance Agency, so the figure will change again effective February 16, 2027. Always verify the current cap against the most recent BOE Letter To Assessors publication before advising a specific transaction — the figures in this guide are point-in-time snapshots and will go stale over time.

My father just turned 55. Can he transfer his base year value to a new home in a different county?

Yes, under §69.6. Effective April 1, 2021, the base year value transfer program permits an eligible homeowner aged 55 or older to transfer their factored base year value to a replacement primary residence located anywhere in California — no county-of-origin or county-of-destination restrictions apply. Your father can move from Los Angeles to Sacramento, for example, without losing his Prop-13-protected assessed value. He may claim this benefit up to three times in his lifetime under Proposition 19, and the replacement can be of greater value than his original home (with the excess added to the transferred base year value).

Do I need to file a claim if I inherited my parents' home in 2020?

Not under Proposition 19. Inheritance occurring before February 16, 2021 is governed by pre-Prop-19 §63.1 (Proposition 58), which was more generous — it excluded the family home of any value and up to $1 million in assessed value of non-primary-residence property. You would file BOE-58-AH (the pre-Prop-19 parent-child claim form) with the County Assessor, and the deadline is generally three years from the transfer date or before any subsequent transfer to a third party. If your parent died before February 16, 2021, the change in ownership is deemed to occur on the date of death regardless of when probate concluded, so the Prop 58 rules apply.

Can my spouse and I both claim the base year value transfer under §69.6?

Only one spouse needs to meet the age (55+) or disability requirement for the couple to qualify for the exclusion on a joint replacement primary residence. The exclusion attaches to the replacement property, not to each spouse individually. However, each qualifying individual has their own three-lifetime-transfer limit — so a couple both qualifying under age 55+ could theoretically use six transfers between them if they later separated and each claimed independently. In a joint claim, the transfer counts as one use of the exclusion for the qualifying spouse (not both).

What happens if my child moves out of the family home after the parent-child exclusion is granted?

The exclusion is removed as of the date the child ceases to use the family home as their primary residence, and the property is reassessed to the new base year value that was established at the initial transfer (factored base year value plus any excess above the $1 million cap). The child does not owe back-taxes for the period the exclusion was in effect, but future property taxes will be based on the higher post-transfer base year value going forward. The child cannot restore the exclusion by returning to the property — the exclusion is a one-time determination at the time of transfer, subject to ongoing continued-use conditions.

Bottom Line

California Proposition 19 amended Article XIIIA §2.1 of the California Constitution and became operative on two dates: February 16, 2021 (parent-child and grandparent-grandchild transfer exclusions) and April 1, 2021 (base year value transfer for 55+/disabled/disaster victims). Implementing statutes are Revenue and Taxation Code §63.2 (intergenerational) and §69.6 (base year value transfer), added by SB 539 (Stats. 2021, ch. 427). The parent-child exclusion under §63.2 applies only to family homes and family farms — not to investment property or vacation homes — and is limited by an inflation-adjusted cap ($1,044,586 for Feb 16, 2025 – Feb 15, 2027, per BOE LTA 2025/009). For a family home, the transferee child must occupy the home as a primary residence within one year, file for the homeowners' or disabled veterans' exemption within one year to receive relief as of the transfer date, and maintain qualifying use. Family-farm claims are governed by separate qualifying requirements. The base year value transfer under §69.6 permits three lifetime transfers (unlimited for disaster victims), anywhere in California, to a replacement of greater or lesser value (excess added to transferred base). Propositions 58, 193, 60, 90, and 110 are repealed for transfers on or after the operative dates. Applicants file BOE-19-P (parent-child), BOE-19-G (grandparent-grandchild), BOE-19-B (age 55+ base year transfer), or BOE-19-D + BOE-19-DC (severely disabled). Deadlines: three years from transfer, before any subsequent third-party transfer, or six months after supplemental/escape assessment notice. For related state-specific property-tax and disclosure frameworks, see our California supplemental property tax bill mechanics guide, our California Commissioner disciplinary process guide, our Davis-Stirling Common Interest Development Act guide, and our Mello-Roos Community Facilities District Act guide.

Source: California State Board of Equalization — Proposition 19 Portal · BOE Letter To Assessors 2022/012 — Implementation of Proposition 19 · BOE Letter To Assessors 2025/009 — 2025-2027 Prop 19 Intergenerational Transfer Cap ($1,044,586) · BOE Publication 801 — Proposition 19 Fact Sheet