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Last updated: 21 October 2026
If you are 55 or older and want to move within California, your next home’s property taxes may not have to start from its full new market value. Proposition 19 may let you move part or all of your old home’s taxable value with you. You must qualify and file.
Bottom Line
Proposition 19 is a property-tax base-year transfer, not a grant, payment, or cash refund. A qualifying owner can transfer the factored base-year value of one California main home to a replacement main home anywhere in California. The new home may cost more, but some added value can be taxed. Before you sell or buy, ask the replacement county assessor to review your dates, title, and planned purchase.
Start Here
- Check the dates. You must be 55 when the old home sells, and buy or build within two years of that sale.
- Check both homes. The old and new homes must meet principal-residence rules. Ownership and who is named on the title matter.
- Call the new county. Ask for its current BOE-19-B claim and required records. You file with the assessor for the replacement home’s county, not with escrow.
| Your situation | First check | Important limit |
|---|---|---|
| Buying in another California county | Ask that county’s assessor about Proposition 19. | All California counties are eligible destinations; a claim is still required. |
| Buying before selling | Map both closing dates. | Two-year window; value comparison starts at 100%. |
| Buying after selling | Mark the first and second anniversaries of the sale. | 105% and 110% tests depend on timing. |
| Already moved | Check your purchase date and claim record. | A late claim may give only future relief. |
What Actually Transfers With You?
California usually reassesses a home when it changes owners. A longtime owner’s taxable value may be much lower than the current market price. Proposition 19 may preserve that lower tax value after a move.
The factored base-year value is the old tax value with allowed yearly adjustments. It is not the sale price. The State Board of Equalization explanation lays out the transfer rules.
The assessor sets the replacement home’s tax value. This may reduce the assessment. It does not send you money or erase local charges.
If you want other ways to handle a California tax bill while staying in your home, see the California property-tax relief guide. That is a wider guide. This page covers the move-related transfer only.
Who May Qualify at Age 55 or Older?
The age test applies when your original home sells. Buying a new house at 54 does not always rule you out, but you must be at least 55 by the old home’s sale. That spouse must also own qualifying property.
The state requires an eligible owner and two qualifying main homes. The sale must meet reassessment rules. Ownership and occupancy must meet the related exemption rules.
You must live in the new home as your main home when you file, not hold it as a rental or vacation property. The December 2024 official assessor guidance spells out the ownership and occupancy rules, including special timing cases.
Married owners: If just one spouse is 55 or older, that spouse may be the claimant if the ownership rules are met. If the older spouse is not on title, do not assume the spouse can claim the transfer. Joint property, inherited homes, trusts, and title changes can need special review.
Income: This is not a means-tested cash grant. Do not confuse it with property-tax postponement or inheritance relief. For related state income-tax matters, use our California senior tax guide.
How the Price and Value Adjustment Work
You may buy a higher-value home, but your tax base may increase. The assessor compares both homes’ full cash values, which can differ from sale prices.
| When you buy or finish building | Value threshold | If replacement exceeds threshold |
|---|---|---|
| Before old home sells | 100% of original home’s full cash value | Excess is added to transferred tax value. |
| Within first year after sale | 105% of original home’s full cash value | Excess is added to transferred tax value. |
| Within second year after sale | 110% of original home’s full cash value | Excess is added to transferred tax value. |
These percentages are not payments. Any value above the threshold is added to the transferred tax base. The state Proposition 19 fact sheet explains this in plain terms, while the assessor’s detailed rules address adjustments.
Simple decision example: If you sell first and buy within the first year, ask whether the new home’s full cash value is no more than 105% of the old home’s full cash value. If it is higher, ask the assessor to show the amount being added to the transferred value. Do not use a real estate listing estimate as the final tax calculation.
The older Propositions 60 and 90 rules were more restrictive about destination counties and replacement values. They are not the current rule for qualifying Proposition 19 moves beginning in 2021. The state’s former transfer comparison explains that change.
One Original Tax Base to One Replacement Home
The transfer covers one old main home and one new main home, not a pool of several tax bases.
For example, if two partners sell separately owned main homes and buy one shared home, they cannot combine both old base-year values into the one new property. The Board’s 2024 guidance addresses this exact issue. The assessor must review the qualifying home and ownership facts.
A person can make up to three age-or-disability transfers under Proposition 19. A couple may have separate counts. Disaster transfers do not count toward this limit. Check earlier claims with the assessor.
Do not confuse this moving provision with Proposition 19’s parent-child inheritance exclusion. That is a separate rule with different forms and dollar limits. The inheritance threshold sometimes described as roughly $1 million does not serve as a fixed maximum purchase price for an age-55 relocation.
The Two-Year Move Rule and Three-Year Claim Rule
You may buy before selling or sell before buying. The replacement purchase or new construction must occur within two years before or after the original sale. At least one of those transactions must be on or after April 1, 2021, when this transfer provision became operative.
After both transactions are complete and you live in the replacement home, file your claim. The state says the transfer takes effect on the later of the sale or replacement purchase/construction date, subject to qualification. It is not handled by escrow automatically. See the state’s filing questions for that sequence.
For relief going back to the qualifying transfer, the general claim period is three years after you buy the replacement home or finish its new construction. Count from your replacement purchase or construction completion, not the sale.
A qualifying late claim may still give prospective relief from the lien date of its filing assessment year. Earlier years are not refunded. Its 2024 county instructions explain the late-claim treatment. Ask how this applies to your particular tax roll, supplemental bill, and any refund.
2026 and 2027: This is a transaction-date and claim-date rule, not a new annual grant application. No separate 2027 age-55 dollar cap is part of the verified relocation rule. If you see a 2027 threshold online, ask whether it instead concerns the parent-child inheritance provision.
How to File With Your County Assessor
Use Form BOE-19-B, the claim for people at least age 55. The state’s property-tax forms listing shows a May 2025 revision. State samples are for reference; get the actual accepted version and filing instructions from the assessor of the replacement property’s county.
- Find the replacement county through the state county directory. Ask whether it accepts mail, online submissions, or office visits.
- Tell the assessor the two property addresses, both transaction dates, the intended claimant, and any earlier base-year transfers.
- Request BOE-19-B and the county’s document checklist. The Sacramento County forms page is one example of a county that lists the specific age-55 form. If you live elsewhere, use your own county’s form route.
- Submit the signed claim, keep a complete copy, and save proof of delivery. Ask the assessor when to expect a decision and what to do if a supplemental assessment arrives first.
- Proof of date of birth and name of the qualifying claimant.
- Original home’s address, parcel number, deed or title records, sale date, and closing papers.
- Replacement home’s address, parcel number, purchase or completed-construction date, and closing records.
- Old property’s most recent tax bill and any supplemental bill; any relevant exemption or occupancy records.
- Information on earlier base-year transfer claims, if any, including the counties involved.
Exact evidence requests can vary by county and by title situation. Do not email identity documents or full financial records to an unconfirmed address. Use the assessor’s official submission channel.
Reality Checks and Common Mistakes
- Do not assume the tax savings begin at closing. A supplemental or corrected tax bill may come before the transfer is processed.
- Do not use an old form. Ask for the county’s current BOE-19-B rather than relying on a sample found elsewhere.
- Do not confuse age and ownership. A qualifying older spouse must also satisfy the claimant’s ownership rules.
- Do not count a rental as a main home. The principal-residence and exemption tests matter.
- Do not promise a savings amount. The assessor decides taxable values; local charges can remain even after a successful transfer.
- Do not stop paying the bill. A pending claim or appeal does not by itself cancel a due date.
For the difference between a tax-base transfer, a deferral, and an exemption, compare other states’ terms in the property-tax guides by state. California’s relocation rule does not apply to a replacement home in another state. State systems differ, as our state tax relief comparison explains.
If Your Claim Is Delayed or Denied
First ask for the assessor’s written reason. Check whether the issue is age on sale date, ownership, proof of main residence, transaction dates, prior transfer count, or the calculation of value. Ask which records would fix a missing item.
If you disagree with the enrolled taxable value, there may be an assessment appeal route. The county assessment appeals board deals with valuation disputes. It is not a general office that can waive any eligibility rule or tax charge. The state appeals questions explain the use of the county’s appeal application, while the BOE’s 2024 Proposition 19 guidance addresses appeals involving denied transfers.
Appeal periods depend on the type of notice and county. Some value appeals must be filed within a short period after a notice. Ask the county clerk of the board for the exact deadline; do not guess from a general yearly calendar. Even during an appeal, pay taxes on time unless the county gives you official written instructions otherwise.
If the age-55 transfer does not fit, ask the assessor about the ordinary Homeowners’ Exemption on the replacement home. Eligible disabled veterans should also review the separate California veteran benefits guide. If property taxes are now part of a larger budget problem, the senior tax help guide points to other kinds of tax support; it does not replace county property-tax advice.
Three Short Phone Scripts
Before you move — replacement county assessor
“I am at least 55 and plan to move to your county. Can you check my Proposition 19 transfer dates and tell me which BOE-19-B documents you need?”
After closing — claim status
“I filed an age-55 base-year transfer claim. Can you confirm it was received, whether anything is missing, and how I should handle my current tax bill?”
After a denial — assessor or clerk
“My Proposition 19 claim was denied. Which rule did I not meet, what record can I provide, and what is my appeal deadline if the assessed value is disputed?”
For general state guidance, call the Board of Equalization at 1-916-274-3350 via its Proposition 19 information page. The county decides your claim.
Resumen en español
Si tiene 55 años o más cuando vende su vivienda principal, la Proposición 19 podría permitirle transferir el valor fiscal de esa casa a otra vivienda principal en California. No es una subvención ni un pago en efectivo. Debe comprar o terminar de construir la nueva vivienda dentro de los dos años anteriores o posteriores a la venta. Presente el formulario BOE-19-B ante el asesor del condado de la vivienda nueva. Para recibir el beneficio retroactivo, normalmente debe presentar la solicitud dentro de los tres años después de comprar o terminar la nueva vivienda. Si se retrasa, consulte si puede recibir alivio para años futuros. Pida los documentos y plazos al condado.
Questions and Answers
Can I move to a different California county?
Yes. A qualifying Proposition 19 age-55 transfer can go to a replacement principal residence anywhere in California. File with the county assessor where the new home is located.
Can I buy a more expensive home?
Yes. There is no fixed purchase-price ceiling for this transfer, but the excess over the applicable 100%, 105%, or 110% value test is added to the transferred tax base.
Can my spouse and I combine two old tax bases?
No. Two separately owned original homes cannot supply two combined base-year values for one replacement home. Ask the assessor which qualifying claimant and original home should be used.
Is the transfer automatic when escrow closes?
No. File Form BOE-19-B with the replacement county assessor after both transactions are complete and you occupy the replacement as your principal residence.
What if I missed the three-year filing window?
A qualified late claim may still provide prospective relief for the assessment year in which you file. Earlier years generally are not refunded. Ask the assessor how your claim year and tax bills will be handled.
About This Guide
This guide uses official California state and county property-tax sources linked in the article. It explains the age-55 moving provision, not every tax-relief program.
Editorial note
This guide is produced based on our Editorial Standards using official and other high-trust sources, regularly updated and monitored, but not affiliated with any government agency and not a substitute for official agency guidance. Individual eligibility outcomes cannot be guaranteed.
Corrections
Please note that despite our careful verification process, errors may still occur. Email info@grantsforseniors.org with corrections and we will respond within 72 hours.
Disclaimer
This article is for informational purposes only and is not legal, financial, medical, tax, disability-rights, immigration, or government-agency advice. Program rules, policies, and availability can change. Readers should confirm current details directly with the official program before acting.
Last updated: 21 October 2026 · Next review: 19 January 2027
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