Prop 19 Property Tax Transfer Calculator
If you're 55 or older (or severely disabled, or lost your home in a declared disaster), California's Proposition 19 lets you sell your primary home and carry its low assessed value to a replacement home anywhere in the state — so a move doesn't reset your property tax. This tool estimates your new taxable value and yearly savings. Free bilingual tool from Home Central Realty (DRE #01717478); an estimate for planning, not tax or legal advice — confirm with the county assessor.
Common questions
How does the Prop 19 tax base transfer work?
If you buy a replacement home priced at or below what your old home sold for, your old assessed value simply moves with you. If the new home costs more, the difference is added: new taxable value = old assessed value + (new price − sale price). Either way, longtime owners usually pay far less than a buyer starting fresh at the new purchase price.
Who qualifies for a Prop 19 base transfer?
Homeowners 55 or older, severely disabled homeowners, and owners whose home was destroyed in a governor-declared disaster. Both homes must be your primary residence, the replacement must be bought or built within two years of the sale, and eligible homeowners can use the transfer up to three times. You file a claim with the county assessor where the new home is.
Can I move to a different county in California?
Yes — that's one of the biggest changes Prop 19 made. The transfer works between any two California counties, so you can sell in LA County and keep your low tax base in Riverside, San Diego, or anywhere else in the state.