What the rule says
California voters approved Proposition 19 in November 2020, fundamentally changing the property tax treatment of real property transferred between parents and children. Under California Constitution Article XIIIA § 2.1, effective for transfers occurring on or after February 16, 2021, the long-standing parent-child property tax reassessment exclusion was sharply limited.
Under the prior rules (former Cal. Const. Art. XIIIA § 2(h), repealed by Proposition 19), parents could transfer: - Their primary residence of any value to children without reassessment - Up to $1 million of assessed value of other real property to children without reassessment
Under Proposition 19's revised rules, a parent-to-child transfer of real property generally triggers a property tax reassessment to current market value, with one narrow exception:
Primary residence exception: A parent-to-child transfer of the parent's primary residence is excluded from reassessment ONLY if: - The transferred property becomes the child's principal residence within one year of transfer - The child files for the homeowner's exemption or disabled veteran's exemption within one year - If the property's market value at transfer exceeds the current assessed value by more than $1 million, the excess above $1 million is reassessed (a partial reassessment)
If the child does not move into the property as a principal residence, the property is fully reassessed to current market value at the time of transfer. Vacation homes, investment properties, second homes, and rental properties no longer qualify for any parent-child exclusion under Proposition 19.
Why this matters
California's Proposition 13 framework caps property tax assessment increases at 2% per year while the property is held by the same owner. Long-time California property owners often have assessed values dramatically below current market value — a home purchased in 1980 for $150,000 might have a current market value of $2 million but an assessed value of only $300,000.
Under pre-Proposition-19 rules, parents could transfer this $2 million home to their children, who would inherit the $300,000 assessed value (and the $3,000-ish annual property tax bill). Under Proposition 19, unless the child moves in as a primary residence and the value-difference is under $1 million, the property reassesses to $2 million market value, producing a property tax bill in the range of $20,000-$25,000 annually.
The consequences are particularly significant for: - Vacation homes and second residences passed to children. Fully reassessed regardless of how the family uses the property. - Rental and investment properties. Fully reassessed; the prior $1 million non-primary-residence allowance no longer exists. - Family homes that children inherit but do not move into. Reassessed unless the child establishes principal residence within one year. - Family homes worth significantly more than their assessed value. The $1 million excess threshold means very high-value primary residences face partial reassessment even when the child moves in.
What this means in practice
The rule produces several distinctive scenarios:
- Adult child inherits parent's home and moves in within one year: If the value differential is under $1 million, the assessed value carries forward. If over $1 million, the excess is reassessed. - Adult child inherits parent's home but does not move in (e.g., owns own home elsewhere): Full reassessment to current market value. The child can use the property as a rental or vacation home but pays property taxes based on current market value. - Child inherits parent's vacation home or investment property: Full reassessment regardless of use. Pre-2021 rules allowed up to $1 million of assessed value to be excluded; that exclusion is gone. - Child inherits parent's primary residence with assessed value $300,000 and market value $2.5 million: If child moves in within one year, the new assessed value becomes $300,000 + ($2,500,000 - $300,000 - $1,000,000) = $1,500,000. The reassessment is $1.2 million higher than the prior assessed value but lower than full market value.
The rule has prompted significant estate planning activity by California parents wanting to preserve property tax benefits for their children. Common responses include:
- Lifetime transfers before Proposition 19. Many parents made transfers before February 16, 2021 to preserve the prior parent-child exclusion under the older rules. - Holding property in irrevocable trusts. Trust structures that completed transfer before Proposition 19's effective date preserved older treatment in some cases. Post-Proposition 19, trust-based transfers are generally treated like outright transfers for reassessment purposes. - Renting to family. Transferring to children who will rent rather than reside often produces full reassessment without the primary-residence exception. - Family-business considerations. Properties used in active family business may have other Proposition 19 considerations beyond residential analysis.
What you can do about it
For California parents considering property transfer to children:
- Understand the post-Proposition-19 framework. Pre-Proposition-19 advice is generally outdated. - Consider whether the child will use the property as a primary residence. This is the single most important factor for whether reassessment applies. - For non-residence transfers, expect reassessment. Plan for the property tax increase as part of the transfer cost. - Consult a California property tax attorney or CPA. The interaction of Proposition 19 with trusts, lifetime gifts, partial transfers, and other structures is technical.
For California children inheriting property:
- Move in within one year if establishing primary residence is the goal. The deadline is firm. - File the homeowner's exemption within one year of transfer. Required to qualify for the exception. - Calculate the partial reassessment if the value differential exceeds $1 million. The new assessed value is the prior assessed value plus the excess over $1 million. - Consult a California property tax advisor on filing the appropriate exclusion claim. Failing to file within deadlines forfeits the exception even if the underlying conditions are met.
Who this affects most
Proposition 19's parent-child rules are most consequential for:
- California families with significant real property where parents want children to inherit while preserving low Proposition 13 assessed values - Owners of vacation homes, rental properties, or investment properties — none of which qualify for the post-2021 exception - Adult children inheriting parents' primary residences who cannot or will not establish residence in the property - High-value primary residences where the value differential exceeds the $1 million threshold
Proposition 19 fundamentally changed California estate planning for real property holdings. The pre-2021 exclusion was one of California's most generous tax benefits and one of the most significant reasons for keeping family property in the family. The post-2021 framework is much narrower, and the property tax consequences of transfer have become a central planning consideration for California families.