California Property Tax 2026: Proposition 13, Proposition 19 and the 1% Cap

California's property tax system has been defined for nearly half a century by Proposition 13 (1978), which caps the tax rate at 1 percent of assessed value and limits annual assessment increases to 2 percent. Proposition 19 (2021) rewrote the rules for base year transfers and inherited property. This 2026 guide explains how both work together, the homeowners' exemption, and the narrow appeal windows by county.

How California's Property Tax Works

California's system is unusually homeowner-friendly for long-term owners and unusually harsh on new buyers. The mechanics:

1. Base Year Value — established at the time of purchase, typically equal to the purchase price. This is the figure frozen for Prop 13 purposes.
2. Annual Adjustment — the base year value rises by the lower of CPI or 2% per year, compounded annually.
3. Tax Calculation — 1% of adjusted base year value, plus voter-approved bond debt service (typically adding 0.1% to 0.3% in most counties).

This is the origin of California's "welcome stranger" effect: long-term owners pay dramatically less than neighbors in identical homes.

Proposition 19: What Changed in 2021

Passed by California voters in November 2020 and effective February 16, 2021, Proposition 19 tightened and expanded Proposition 13 in two major ways.

Expanded base year transfer for seniors and disabled

Homeowners age 55 or older, severely disabled, or victims of wildfire or natural disaster can transfer their base year value to a replacement home:

• Anywhere in California (not just intra-county or between designated counties as before)
• Up to three times per person (previously once)
• If replacement home is equal or lesser value, the base transfers directly; if greater value, the difference is added to the base

Apply with the county assessor where the replacement home is located. Deadline: within three years of sale or purchase.

Tightened inherited property rules

Before Prop 19, any child inheriting a parent's home kept the parent's low Prop 13 base. After Prop 19, the child must:

• Move in as primary residence within one year of transfer
• File the Homeowners' Exemption within one year
• File form BOE-19-P with the county assessor within three years of transfer

Even when rules are met, inherited property taxable value is capped at the parent's taxable value plus $1,000,000. If market value exceeds that, the excess is added to the new base. Inherited properties used as rentals or secondary residences reassess to current market value immediately.

The $7,000 Homeowners' Exemption

Separate from Prop 13 and Prop 19, California offers a flat $7,000 Homeowners' Exemption that reduces the assessed value of an owner-occupied primary residence. At the typical 1.1% combined rate, it saves about $77 per year — modest, but automatic and cumulative.

How to claim

File form BOE-266 with the county assessor. A one-time application — the exemption continues as long as the property remains your primary residence. If you bought a home and never filed, you can file retroactively for limited years.

Why it's important for inheritance

Prop 19 requires an heir to file the Homeowners' Exemption within one year of inheritance to preserve the base year transfer. Missing this single filing forfeits the Prop 19 benefit even if all other requirements are met.

Other Important Exemptions

Disabled Veterans' Exemption

California offers two tiers:

• Basic Exemption: approximately $169,769 of value for tax year 2025 (indexed annually) — no income limit
• Low-Income Exemption: approximately $254,656 of value — income limit of approximately $76,235 for 2025

Requires VA-certified 100% service-connected disability or blindness/loss of limbs from service. Surviving spouses of qualifying veterans also eligible.

Welfare Exemption

Property owned by churches, schools, nonprofit charities, and certain other organizations is fully exempt from property tax. Annual filing with form BOE-267-A.

Church Exemption

Property used exclusively for religious worship.

Parent-Child Exclusion (legacy Prop 58)

Replaced by Prop 19 for transfers after February 16, 2021. Historical transfers made before that date may still benefit from the prior, more generous rules.

Appealing Your Assessment

California assessment appeals are handled at the county level, with deadlines varying by county's assessment calendar.

Regular filing period

For most counties, the regular appeal filing period runs from July 2 to November 30. Some counties use July 2 to September 15. Check your county's Assessment Appeals Board website.

Supplemental and escape assessments

If you receive a supplemental notice (after new construction or purchase) or an escape assessment (after audit), the filing deadline is typically 60 days from the notice date.

Step-by-step process

1. File the Application for Changed Assessment with the Assessment Appeals Board of the county (fee is typically $30-$60)
2. Hearing is scheduled, often 6-12 months out due to backlog
3. Present evidence — comparable sales, appraisal, or evidence of factual errors
4. If dissatisfied with board decision, appeal to Superior Court

Grounds for appeal

• Fair market value (for decline-in-value appeals) is less than base year value — triggers Prop 8 temporary reduction
• Erroneous change in ownership resulting in wrong base year reset
• Physical attribute errors on the assessment record
• Welfare or homestead exemption wrongly denied

Payment Schedule

California property tax is billed for the fiscal year July 1 to June 30 and paid in two installments:

• First installment: due November 1, delinquent after December 10 (10% penalty)
• Second installment: due February 1, delinquent after April 10 (10% penalty plus $10 cost)

Continued delinquency for 5 years triggers tax default; properties remain in default status for additional years before being sold at tax-defaulted property sale. Redemption is possible throughout the default period with payment of delinquent tax plus penalties.

Frequently Asked Questions

What is California's property tax rate in 2026?

California caps the base property tax rate at 1% of assessed value under Proposition 13. Voter-approved bonds (school, infrastructure) add an additional 0.1% to 0.5% typically, bringing combined effective rates to around 1.1% to 1.3% of assessed value. Note that assessed value is capped at base year value plus 2% annual growth, not current market value.

How does Proposition 19 affect inherited property?

Children inheriting a parent's primary residence must move in as their own primary residence within one year, file the Homeowners' Exemption within that year, and file form BOE-19-P with the county assessor within three years. Even then, taxable value is capped at the parent's base value plus $1,000,000 — excess value is added to the new base. Inherited rental or vacation properties reassess to current market value immediately.

Can I transfer my Proposition 13 base year value to a new home?

Yes, if you're age 55+, severely disabled, or a victim of wildfire or natural disaster. Under Proposition 19, you can transfer your base year value to a replacement home anywhere in California, up to three times per person. If the replacement home is equal or lesser value than the sold home, the base transfers directly; if greater, the difference is added.

When is the California property tax appeal deadline?

For most counties, the regular appeal filing period runs July 2 to November 30 (some counties use July 2 to September 15). Supplemental and escape assessment appeals must be filed within 60 days of the notice. File with your County Assessment Appeals Board. Missing the deadline forfeits appeal rights for the tax year.

What is the California Homeowners' Exemption?

A $7,000 reduction in assessed value for owner-occupied primary residences. Worth approximately $77 per year in tax savings at typical rates. File form BOE-266 once with the county assessor; the exemption continues automatically. Critical for Proposition 19 inheritance: heirs must file this within one year of transfer to preserve the base year benefit.