Can I Keep My Low Property Tax If I Sell and Buy Another Home in Orange County? (Prop 19 Explained)
Can I Keep My Low Property Tax If I Sell and Buy Another Home in Orange County? (Prop 19 Explained)
Short answer: Yes, if you're 55 or older, severely disabled, or a disaster victim. Under Proposition 19, you can transfer your current home's taxable value to a replacement primary residence anywhere in California. You can do it up to three times, as long as you buy the replacement within two years of selling the original. If the new home costs more, the difference is added to your transferred taxable value.
I'm easy to talk to - let's book a call today!: BOOK A CALL!
Updated October 6, 2026
Prop 19 rules at a glance
| Rule | Detail | Source |
|---|---|---|
| Who qualifies | Age 55+, severely and permanently disabled, or wildfire/natural-disaster victims | CA Board of Equalization |
| Where | Replacement primary residence anywhere in California | CA BOE |
| How many times | Up to 3 transfers (55+ or disabled) | CA BOE |
| Timing | Sell the original and buy the replacement within 2 years of each other | CA BOE |
| Occupancy | The original home must qualify for the homeowners' or disabled veterans' exemption | CA BOE |
| Equal-or-lesser value test | Replacement bought before the sale: 100% of the original's value. Within year 1 after: 105%. Year 2: 110% | CA BOE |
| Higher-value replacement | The amount over the threshold is added to your transferred taxable value | CA BOE |
How Prop 19 works on an Orange County move (illustration)
Hypothetical: You bought in Huntington Beach decades ago. The home's taxable value is now $400,000, and its market value is $1,400,000.
- Downsize to a $1,200,000 Laguna Niguel single-level home within a year of selling. $1.2M is less than 105% of $1.4M ($1,470,000). Your $400,000 taxable value carries over. At the roughly 1.1% base rate, that's about $4,400/year in base property tax instead of about $13,200 on a fresh purchase (our math; special taxes like Mello-Roos are separate).
- Move up to a $1,700,000 San Clemente home within a year. The threshold is $1,470,000, so the $230,000 above it is added: $400,000 + $230,000 = $630,000 taxable value. Roughly $6,930/year instead of about $18,700.
This is an illustration only. Your assessor determines the actual figures. File the claim with the Orange County Assessor and confirm with your CPA.
Why this matters for OC sellers right now
Many longtime OC owners stay put because of their tax base and their low mortgage rate. About half of U.S. homeowners with a mortgage have a rate under 4% (NPR). Prop 19 takes the tax base out of that decision. Plenty of older sellers own free and clear or carry little debt, so for them the remaining questions are lifestyle and capital gains.
The capital gains piece
Prop 19 covers property tax only. The federal home-sale exclusion still caps tax-free gain at $250,000 for single filers and $500,000 for married couples filing jointly. Those limits haven't changed since 1997 (CNBC). Proposals to raise or eliminate the cap, including the More Homes on the Market Act and the No Tax on Home Sales Act, were still in committee as of August 2026 (CNBC). Don't plan a sale around a law that hasn't passed. Work out your gain with your CPA first.
Smart sequencing for OC move-down sellers
- Get a property-level valuation of your current home. The 105% and 110% thresholds are based on its market value.
- Decide whether to buy first or sell first. Buying first holds you to the 100% threshold, while selling first gives you 105% or 110% of room.
- Sell off-market first, then go to MLS with an offer deadline if needed. That protects your price and privacy.
- Line up your team: CPA, escrow, and lender. Coordinate closings so both sides fall inside the 2-year window.
FAQ
Can I transfer my property tax base in Orange County?
Yes, if you're 55+, severely disabled, or a qualifying disaster victim. Prop 19 lets you transfer your base year value to a replacement primary residence anywhere in California, up to three times, within two years of selling.
What if my new home costs more than my old one under Prop 19?
If the replacement's market value exceeds the applicable threshold (100%, 105%, or 110% of the original's value, depending on timing), the difference is added to your transferred taxable value.
Does Prop 19 apply to rental or investment properties?
The base year value transfer applies to principal residences. Prop 19 also changed parent-to-child transfer rules. Talk to an estate attorney about inherited or investment property.
Did Congress raise the $250,000 home sale tax exclusion?
Not as of August 2026. CNBC reported that bills to expand or eliminate the exclusion remained in committee, and the $250,000 and $500,000 limits have been unchanged since 1997.
About the author: Shane Boukorras is a real estate advisor with The Boukorras Group at Real Broker (CA DRE 02066136), serving buyers and sellers across Orange County, the Inland Empire, and LA County. Want a property-level comp analysis for your home or a home you're considering? Reach out to The Boukorras Group.
Market data cited is the most recent available as of the update date; figures change monthly. Payment estimates are illustrative principal-and-interest calculations, not loan quotes. Not tax or legal advice.
Recent Posts
Shane Boukorras