California Proposition 19 Guide

Property-tax transfer rules for inherited homes and homeowners 55+

Property Tax Strategy

Proposition 19 — Complete Guide

Passed in 2020 and effective February 2021, Proposition 19 fundamentally rewrote how California handles property tax reassessment for inherited homes and senior transfers. Filed correctly, it preserves decades of tax base. Filed incorrectly — or not at all — it triggers full reassessment at current market value.

Key Takeaways
  • Inherited homes are reassessed unless the heir occupies the property as a primary residence.
  • A $1,044,586 exclusion cap — the inflation-adjusted limit through Feb 15, 2027 — limits the tax protection an heir can claim.
  • Seniors 55+ may transfer their tax base to a new home anywhere in California, up to three times.
  • Claims must be filed with your county assessor — not through escrow.
  • Deadlines are strict. Missing them triggers full reassessment.

Who Prop 19 Affects

Prop 19 reaches three groups: families transferring property between generations, seniors moving to a new primary residence, and homeowners who lost their property in a wildfire or disaster.

Families inheriting property
  • Reassessment rules
  • Primary-residence requirement
  • $1,044,586 exclusion explained
  • What happens if you rent it
Seniors (55+) moving
  • Tax base transfer anywhere in CA
  • Use the benefit up to 3 times
  • Applies to downsize or upgrade
  • Primary residence only
Wildfire / disaster victims
  • Replace destroyed home with tax base intact
  • No three-use limit
  • Replacement must close within 2 years

The $1,044,586 Exclusion Rule

When a child inherits a home worth more than $1,044,586 above the parent's assessed value, only the first $1,044,586 is excluded. The cap is inflation-adjusted every two years — $1,044,586 applies to transfers from Feb 16, 2025 through Feb 15, 2027 (it was $1M when Prop 19 took effect). The remainder is reassessed at current market value. This is the single most misunderstood rule in Prop 19, and it often surfaces a year after closing when the supplemental tax bill arrives.

Filing Process — Step by Step

  1. Record the transfer
    The transfer or deed change is recorded with the county.
  2. File a Homeowners' Exemption
    Submit BOE-266 (Claim for Homeowners' Property Tax Exemption). An heir must file it within one year of the transfer to keep the Prop 19 exclusion.
  3. File the Prop 19 exclusion claim
    BOE-19-P (Prop 19 parent-child transfer exclusion) for inherited homes, filed within three years of the transfer and before the home is sold to a third party. BOE-19-B (Prop 19 base-year value transfer, age 55+) for senior moves, also within three years.
  4. County assessor reviews
    Your claim is verified against the eligibility criteria.
  5. Tax base is adjusted
    Approval preserves your base. Denial triggers a reassessment letter at market value.
Mistakes that trigger reassessment
  • Renting out the inherited property. The exclusion is forfeit the moment the property is no longer owner-occupied.
  • Missing the filing deadline with your county assessor.
  • Assuming the $1,044,586 exclusion covers all properties regardless of value.
  • Assuming the exclusion is automatic. It is not. You must file.
  • Allowing non-occupying siblings to claim the exclusion.
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