By Andrea Pazmino-Pace, REALTOR® | HomeSmart Realty Group
Serving Los Angeles County and surrounding Southern California communities | Updated August 2026

California homeowners often remain in a property longer than they want because they are concerned about losing their low property-tax assessment. Proposition 19 can help certain homeowners sell their primary residence, purchase another home anywhere in California, and transfer their existing property-tax base to the replacement property.

The law can be especially helpful for homeowners age 55 or older, people with severe and permanent disabilities, and victims of qualifying wildfires or natural disasters. However, Proposition 19 also changed the property-tax rules for homes inherited by children and grandchildren.

Quick Answer: How Does Proposition 19 Help California Homeowners?

Proposition 19 allows eligible California homeowners to transfer the taxable value of their primary residence to another primary residence anywhere in the state.

Eligible homeowners can purchase a replacement home of any value. If the replacement property is more valuable than the original home, only the difference in value is generally added to the transferred property-tax base.

This can help a qualifying homeowner move closer to family, downsize, buy a more accessible home, or relocate to another California county without having the entire replacement property reassessed at its current market value.

Proposition 19 transfers a property-tax base. It does not transfer the homeowner’s mortgage, interest rate, loan balance, or monthly mortgage payment.

What Is California Proposition 19?

California voters approved Proposition 19 in November 2020. Its base-year value transfer rules became operative on April 1, 2021.

The law expanded property-tax portability for qualifying homeowners by allowing them to:

• Transfer their property-tax base anywhere in California

• Purchase or build a replacement primary residence

• Buy a replacement home of any value

• Complete the transactions in either order

• Use the benefit up to three times if they qualify based on age or disability

Before Proposition 19, eligible homeowners faced more restrictions. A transfer was generally limited to the same county or a participating county, the replacement home usually had to be of equal or lesser value, and the age-based benefit was generally available only once.

The current rules and official guidance are available through the California State Board of Equalization.

Who Qualifies for a Proposition 19 Property-Tax Transfer?

You may qualify if you meet at least one of the following conditions on the date you sell your original home:

Homeowners Age 55 or Older

At least one qualifying homeowner must be 55 years of age or older when the original primary residence is sold.

You do not have to wait until age 56. If you are already 55 on the sale date and satisfy the other requirements, you may qualify.

Severely and Permanently Disabled Homeowners

A homeowner with a qualifying severe and permanent disability may be able to transfer the property-tax base to a replacement primary residence.

Supporting documentation and the applicable county assessor forms may be required.

Victims of Wildfire or Natural Disaster

A homeowner whose primary residence was substantially damaged or destroyed by a qualifying wildfire or a natural disaster declared by the Governor may qualify.

The eligibility requirements for a disaster-related transfer differ from an age-based transfer. Homeowners should verify their situation with the county assessor.

A homeowner does not need to be over 55, disabled, and a disaster victim at the same time. Meeting one qualifying category may be sufficient, provided all other requirements are satisfied.

What Is a Property-Tax Base?

Your property-tax base, also called the factored base-year value, is the taxable value used to calculate your annual property taxes. It is not necessarily the same as your home’s current market value.

Under Proposition 13, a California property’s assessed value generally begins with its purchase price and can increase by a limited amount each year until a change in ownership or new construction occurs.

This means a longtime homeowner may have:

• A current home value of $900,000

• A taxable value of only $350,000

• Property taxes based primarily on the lower taxable value

Without a qualifying exclusion, purchasing another property usually creates a new taxable value based on the replacement home’s market value at the time of purchase.

Proposition 19 may allow an eligible homeowner to carry the lower taxable value to the new primary residence.

How Proposition 19 Can Help Los Angeles Homeowners

1. You Can Move Anywhere in California

An eligible Los Angeles County homeowner can sell a primary residence and purchase a replacement home in any California county.

For example, a homeowner could move from:

• Los Angeles to Riverside County

• Baldwin Park to San Bernardino County

• Long Beach to Orange County

• Downey to San Diego County

• El Monte to Ventura County

• Compton to Sacramento County

The benefit is no longer restricted to the same county or a limited number of participating counties.

This gives homeowners more choices when moving for retirement, family, employment, health, affordability, or lifestyle reasons.

2. You Can Buy a Less Expensive Home

If your replacement home meets the applicable equal-or-lesser-value test, your existing property-tax base may transfer without an additional value adjustment.

This can benefit homeowners who want to downsize but are concerned that buying a newer property could still produce a larger property-tax bill.

3. You Can Purchase a More Expensive Home

Proposition 19 allows an eligible homeowner to purchase a replacement property of any value.

If the replacement home exceeds the applicable value limit, the difference is generally added to the transferred taxable value.

This is one of the law’s most important benefits because the previous rules generally required a replacement home of equal or lesser value.

4. You Can Use the Benefit Up to Three Times

Homeowners qualifying based on age or severe and permanent disability may generally transfer their property-tax base up to three times.

This provides additional flexibility if a homeowner needs to move again later.

5. You Can Purchase Before or After Selling

The replacement home may be purchased or newly constructed before or after the original home is sold, provided the required transactions are completed within the applicable two-year period.

If you buy the replacement property first, the original home generally must be sold within two years of that purchase.

According to the Board of Equalization, the transfer becomes effective on the later of the two transaction dates. If you buy the replacement home before selling your original property, you may temporarily owe taxes based on the replacement home’s full market value for the period before the original home is sold.

How Is the New Taxable Value Calculated?

The calculation depends on the market value of the original home, the market value of the replacement home, and when the replacement property is purchased or completed.

Example 1: Buying a Lower-Priced Replacement Home

Assume:

• Original home’s taxable value: $350,000

• Original home’s market value at sale: $900,000

• Replacement home’s market value: $800,000

If the transaction meets the applicable requirements, the $350,000 taxable value may transfer to the replacement home.

Property taxes would be calculated primarily using the transferred value rather than the replacement home’s $800,000 purchase price.

Example 2: Buying a More Expensive Replacement Home

Assume:

• Original home’s taxable value: $350,000

• Original home’s market value at sale: $900,000

• Replacement home’s market value: $1,100,000

The replacement home is worth $200,000 more than the original home.

A simplified calculation would be:

Transferred taxable value: $350,000
Difference in market value: $200,000
Estimated new taxable value: $550,000

Instead of being taxed on the entire $1.1 million market value, the homeowner may have a taxable value of approximately $550,000, subject to the county assessor’s final determination.

The Timing Rules Affect the Value Test

For purposes of determining whether a replacement home is of equal or lesser value, the Board of Equalization generally uses these limits:

• Up to 100% of the original home’s market value when the replacement is purchased before the original home is sold

• Up to 105% when the replacement is purchased during the first year after the sale

• Up to 110% when the replacement is purchased during the second year after the sale

Market value is determined by the county assessor and may not be identical to the sale price or purchase price.

These calculations can become complicated. Ask the county assessor or a qualified property-tax professional to review your estimated numbers before you make a final decision.

Does Proposition 19 Transfer Your Mortgage?

No. Proposition 19 does not transfer your mortgage to your new home.

When you sell your original property, the existing mortgage is normally paid from the sale proceeds. Unless the loan has a special assumption or portability feature, the buyer does not simply take over your mortgage and you cannot move that loan to the replacement home.

If you finance your next purchase, you will generally need:

• A new mortgage application

• A new loan approval

• A current interest rate

• A new appraisal

• New loan documents

• New closing costs

Proposition 19 concerns the assessed value used to calculate property taxes. It does not preserve your old mortgage interest rate.

Proposition 19 and Inherited Homes

Proposition 19 also changed the rules for property transferred from parents to children and, in limited situations, from grandparents to grandchildren.

To qualify for the current parent-child exclusion:

• The property generally must have been the parent’s principal residence

• At least one eligible child must use the property as a principal residence

• The child must apply for the Homeowners’ Exemption or Disabled Veterans’ Exemption within one year

• The required Proposition 19 exclusion claim must be filed

• The property must satisfy the applicable value requirements

Rental homes, vacation homes, and other investment properties generally do not qualify for the Proposition 19 parent-child exclusion.

For transfers occurring from February 16, 2025, through February 15, 2027, the current adjusted exclusion amount is the property’s factored base-year value plus $1,044,586. If the market value exceeds that limit, the excess is generally added to the taxable value. The Board of Equalization adjusts this amount every two years. California BOE adjustment information

Example of an Inherited Home

Assume:

• Parent’s taxable value: $300,000

• Home’s market value on the transfer date: $1,500,000

• Current adjusted exclusion amount: $1,044,586

The protected value limit would be:

$300,000 + $1,044,586 = $1,344,586

The property’s market value exceeds that limit by $155,414.

A simplified estimated taxable value would be:

$300,000 + $155,414 = $455,414

This example assumes all occupancy, filing, family relationship, and other eligibility requirements are satisfied.

If the child does not move into the property and use it as a primary residence, the home may be reassessed at market value.

Because inherited-property decisions may involve estate planning, trusts, capital gains, reassessment, and probate, families should consult the county assessor, an estate-planning attorney, and a qualified tax professional before transferring or selling the property.

How to Apply for Proposition 19

A Proposition 19 property-tax transfer is not automatically completed through escrow.

After the original home has been sold, the replacement property has been purchased or completed, and you are living in the replacement home, you must file the applicable claim with the assessor in the county where the replacement property is located.

Common forms include:

• BOE-19-B: Homeowners age 55 or older

• BOE-19-D: Severely and permanently disabled homeowners

• BOE-19-DC: Certificate of disability

• BOE-19-V: Victims of wildfire or natural disaster

• BOE-19-P: Parent-to-child reassessment exclusion

• BOE-19-G: Grandparent-to-grandchild reassessment exclusion

Forms are administered by the county assessor. The current forms are listed by the California Board of Equalization.

Keep copies of:

• Closing statements

• Recorded deeds

• Proof of sale

• Proof of purchase

• Homeowners’ Exemption application

• Identification

• Disability documentation, when applicable

• Disaster documentation, when applicable

• Trust or inheritance documents, when applicable

File as soon as possible. Different provisions have specific deadlines, and delayed filing can affect when tax relief begins.

Common Proposition 19 Mistakes to Avoid

Assuming the Benefit Is Automatic

You must submit the correct claim to the county assessor. Escrow does not complete the transfer for you.

Confusing Property Taxes With a Mortgage

Proposition 19 transfers an eligible property-tax base. It does not transfer your loan, interest rate, or mortgage payment.

Missing the Two-Year Window

The replacement home must generally be purchased or newly constructed within two years before or after the sale of the original residence.

Using the Wrong Property Values

The county assessor’s market values may differ from the actual sale and purchase prices. This can affect the final taxable-value calculation.

Forgetting the Primary-Residence Requirement

The original property and replacement property must meet the principal-residence requirements.

For inherited homes, the eligible child must generally occupy the inherited family home as a principal residence and apply for the Homeowners’ Exemption or Disabled Veterans’ Exemption within one year.

Assuming Every Inherited Property Qualifies

Rental properties, vacation homes, and many other inherited properties do not qualify for the current parent-child exclusion.

Waiting Until After the Move to Ask Questions

The tax consequences should be reviewed before listing the original home or purchasing the replacement property.

Frequently Asked Questions About Proposition 19

Can I transfer my California property-tax base to another county?

Yes. If you qualify, you can transfer the eligible taxable value of your primary residence to a replacement primary residence anywhere in California.

Do I have to buy a less expensive home?

No. Proposition 19 allows an eligible homeowner to purchase a replacement home of any value. When the replacement property exceeds the applicable value limit, the difference is generally added to the transferred taxable value.

Can I buy the replacement home before selling my current home?

Yes. The transactions can occur in either order, provided the timing and other requirements are satisfied. The original home generally must be sold within two years of purchasing the replacement property.

How many times can a homeowner use Proposition 19?

A homeowner qualifying because of age or severe and permanent disability may generally use the base-year value transfer up to three times.

Do both spouses need to be at least 55?

Generally, at least one qualifying owner must meet the age requirement on the date the original residence is sold. Ownership, occupancy, and other requirements still apply.

Can I transfer my tax base from Los Angeles County to Riverside County?

Yes. A qualifying homeowner may transfer an eligible property-tax base from a primary residence in Los Angeles County to a replacement primary residence in Riverside County or another California county.

Does Proposition 19 lower my mortgage payment?

It may reduce the property-tax portion of your total housing expense compared with a complete reassessment, but it does not transfer or reduce your mortgage. Your new loan payment will depend on the purchase price, down payment, loan amount, interest rate, insurance, and other costs.

Does an inherited rental property qualify?

Generally, no. The current parent-child exclusion is primarily limited to a family home that was the parent’s principal residence and becomes the child’s principal residence, or a qualifying family farm.

Can my child inherit my low property-tax base?

Possibly. The property, occupancy, value, relationship, exemption, and filing requirements must all be satisfied. The exclusion is not automatic, and the entire taxable value may not be protected when the property’s market value exceeds the applicable limit.

Where do I file the Proposition 19 claim?

For a base-year value transfer to a replacement home, file the claim with the county assessor where the replacement residence is located.

Is Proposition 19 Right for You?

Proposition 19 may help if you want to:

• Downsize after retirement

• Move closer to children or grandchildren

• Relocate from Los Angeles to a more affordable California community

• Purchase a single-story or more accessible home

• Leave an area affected by wildfire risk

• Move after a qualifying natural disaster

• Buy a more expensive replacement property without a complete reassessment

Before selling, request an estimate of your current taxable value and the possible taxable value of your replacement home. Compare the estimated property taxes, mortgage payment, insurance, HOA dues, maintenance, and closing costs.

A lower transferred tax base can provide meaningful savings, but it is only one part of the decision.

Planning a Move in Los Angeles or Southern California?

If you are considering selling a home in Los Angeles, Baldwin Park, Downey, Long Beach, El Monte, Compton, the San Gabriel Valley, or another Southern California community, Proposition 19 may give you more flexibility.

I can help you evaluate your current home’s market value, estimate your net proceeds, identify replacement-home options, and coordinate your sale and purchase timelines. For a final determination of your eligibility and taxable value, consult the county assessor and appropriate legal or tax professionals.

Andrea Pazmino-Pace, REALTOR®
HomeSmart Realty Group
Phone: (626) 590-1289
Website: AskAndreaHomes.com

This article provides general real estate information and is not legal, tax, financial, or property-assessment advice. Proposition 19 eligibility and calculations depend on individual circumstances. Contact the county assessor, an attorney, or a qualified tax professional before making a decision.

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Article Excerpt:
California Proposition 19 may allow homeowners age 55 or older, qualifying disabled homeowners, and certain disaster victims to transfer their property-tax base to another primary residence anywhere in California. Learn who qualifies, how the taxable value is calculated, how inherited homes are treated, and which mistakes to avoid.