Proposition 19

Proposition 19 is a California constitutional amendment passed by voters in November 2020 and effective February 16, 2021. It dramatically reshaped California property tax in two ways:

1. Narrowed parent-child transfer exclusion (RTC §63.2). Under the old Proposition 58 rules, parents could transfer their primary residence to children without triggering a reassessment, and up to $1 million of assessed value in other property. Prop 19 replaced this with a much narrower exclusion: the child must move into the inherited home as their primary residence within one year and file the Homeowners' Exemption, and only the first $1 million of value above the parent's factored base year value is excluded from reassessment.

2. Expanded base-value portability for older or displaced homeowners. Homeowners who are over 55, severely disabled, or victims of a natural disaster (like wildfire) can now transfer their Prop 13 base year value to a new primary residence anywhere in California — up to three times in their lifetime. The replacement home can be of any value; if it's more expensive, the difference is added to the transferred base year value.

Prop 19 also preserved a separate exclusion for family farms transferred from parent to child, with its own $1 million cap.

The practical effect: California families that planned around Prop 58 inheritance often face significantly higher property tax bills on inherited homes. Older homeowners gained new flexibility to relocate without losing their low Prop 13 base.

Proposition 19 affects every California family that owns appreciated real estate. Families that planned around the old Prop 58 rules may need to revise their estate plans. Owners considering passing property to adult children should weigh:

• Whether the child can realistically use the property as their primary residence within 1 year
• Whether to transfer earlier (while market values may be lower, reducing the cap exposure)
• Whether the family farm exception applies (separate rules)
• Whether trust structures or tenancy-in-common arrangements preserve more Prop 13 protection

For older homeowners, Prop 19's portability provisions are genuinely beneficial — they enable downsizing, moving closer to family, or relocating after a disaster without losing the low Prop 13 base.

A California parent owns a Bay Area home purchased in 1985 for $200,000. The factored base year value in 2026 is approximately $325,000. The current market value is $2,500,000. The parent dies and leaves the home to their adult child.

Under old Prop 58 (pre-2021): Child inherits the home and keeps the parent's $325,000 base year value. Annual property tax (at ~1.15%): about $3,738.

Under Prop 19 (current):

• If the child does not move in within 1 year: Property is reassessed at $2,500,000 market value. Annual tax: about $28,750.
• If the child does move in within 1 year: $325,000 parent's base + $1,000,000 cap = $1,325,000 protected threshold. Market value of $2,500,000 exceeds the threshold by $1,175,000. New base year value: $325,000 + $1,175,000 = $1,500,000. Annual tax: about $17,250.

Either way, the child pays substantially more than they would have under the old rules.