What Is California Proposition 19?
Proposition 19 took effect April 1, 2021, replacing the older Propositions 60 and 90. It lets qualifying homeowners move without resetting their property tax assessment to the new purchase price.
In California, your property tax is based on your factored base year value — essentially what you paid, adjusted upward by no more than 2% a year under Proposition 13. Someone who bought in 1995 may be paying tax on a base of $180,000 while the home is worth $1.2 million. Ordinarily, moving means losing that and being reassessed at the new purchase price.
Proposition 19 lets you take that low base with you.
Who qualifies. You must meet one of these on the date your original home sells — not all three:
- At least 55 years old (only one spouse on title needs to be)
- Severely and permanently disabled
- A victim of a wildfire or Governor-declared natural disaster causing more than 50% damage
How Is Prop 19 Different From the Old Prop 60/90?
| Rule | Prop 60/90 (before 4/1/2021) | Prop 19 (current) |
|---|---|---|
| Number of transfers | Once in a lifetime | Up to three times |
| Where you can move | Same county, or 1 of 10 participating counties | Anywhere in California |
| Replacement value | Equal or lesser value only | Can be more expensive — add the difference |
| Age requirement | 55+ | 55+, disabled, or disaster victim |
The middle row is the one most homeowners do not realize. Under the old rules, buying something more expensive disqualified you entirely. Under Prop 19 you keep the benefit — you simply add the difference in market value to your transferred base.
Estimate Your Proposition 19 Savings
Enter your current assessed value (from your property tax bill), what you expect your home to sell for, and your target replacement price.
Estimates use a 1.1% effective property tax rate, typical for much of Southern California once local assessments and bonds are included. Your actual rate varies by tax rate area and may be higher in districts with Mello-Roos or special assessments. Confirm with your county assessor.
How Do You File Form BOE-19-B?
1. Confirm you meet the requirements on the sale date
You must be 55 or older (or disabled, or a disaster victim) on the date your original primary residence sells. The original must have been eligible for the homeowners' or disabled veterans' exemption at that time. There is no minimum period you must have lived there first.
2. Complete both transactions within two years
The sale of the original and the purchase or completed construction of the replacement must occur within two years of each other, in either order.
3. Get the form from your county assessor
Form BOE-19-B — "Claim for Transfer of Base Year Value to Replacement Primary Residence for Persons at Least Age 55 Years." Download it from the California State Board of Equalization or your county assessor's site. You will need proof of age.
4. File with the county assessor where the new home is
Not with the state. The claim goes to the assessor in the county where your replacement primary residence is located.
5. File within three years — and sooner is materially better
The deadline is three years from the purchase or completion of the replacement. File late and relief becomes prospective only — it applies from the year you file forward, and the intervening years are lost. On a $11,000 annual saving, waiting two years to file costs roughly $22,000 that you do not get back.
Selling and buying as a 55+ homeowner? That is two transactions — and at a flat fee, two transactions cost $14,500 rather than a percentage on each. Roman handles both sides and the Prop 19 timing.
Get My Free EstimateWhat If the New Home Costs More?
You keep the benefit. This is the biggest improvement Prop 19 made over the old rules, and it is widely misunderstood.
Your new taxable value becomes: your transferred base year value + (replacement price − original sale price).
| Scenario | Replacement $900K | Replacement $1.2M | Replacement $1.5M |
|---|---|---|---|
| Original base year value | $180,000 | $180,000 | $180,000 |
| Original sold for | $1,200,000 | $1,200,000 | $1,200,000 |
| New taxable value | $180,000 | $180,000 | $480,000 |
| Annual tax at 1.1% | $1,980 | $1,980 | $5,280 |
| Tax without Prop 19 | $9,900 | $13,200 | $16,500 |
| Annual savings | $7,920 | $11,220 | $11,220 |
Note the third column: buying $300,000 more expensive did not eliminate the benefit — it added $300,000 to the transferred base. You still save over $11,000 a year.
Where Do You File in Southern California?
Form BOE-19-B is filed with the assessor in the county where your replacement home is located. Roman represents buyers and sellers across four Southern California counties — and because a Prop 19 move is two transactions, a flat fee applies to each side rather than a percentage on both.
Since Prop 19 allows a move anywhere in California, many 55+ sellers use it to leave a high-cost county for a lower-cost one — carrying a Los Angeles tax base to a Ventura or San Bernardino County home. The tax base moves with you; only the difference in value is added.
This page is general information, not tax or legal advice. Roman Doktorovich is a licensed California real estate agent (DRE #01441969), not a CPA or tax attorney. Proposition 19 rules have specific requirements and strict deadlines, and how they apply depends on your circumstances. Confirm your eligibility with your county assessor or a qualified tax professional before relying on any figure here. Official information: California State Board of Equalization — Proposition 19.
Why Prop 19 Changes the Math on Selling
For a longtime California homeowner over 55, the property tax base is often worth more than any other single factor in the decision to move — and it is frequently the reason people stay in a home that no longer fits.
The lock-in problem Prop 19 was written to solve
Under Proposition 13, your assessment rises no more than 2% a year regardless of market value. Someone who bought in 1995 for $180,000 may hold a home worth $1.2 million while paying roughly $2,000 a year in property tax. Moving used to mean a reassessment to $1.2 million — jumping the annual bill to around $13,200.
That $11,000 annual difference kept a lot of people in houses with stairs they could no longer climb. Prop 19 removes it.
It is two transactions, and that is where a flat fee compounds
A Prop 19 move means selling one home and buying another. Under a percentage model you pay commission twice — on a $1.2 million sale and a $1.2 million purchase at 2.5% each, that is roughly $60,000 across both sides.
| Transaction | 2.5% Commission | Roman's Flat Fee |
|---|---|---|
| Selling at $1,200,000 (listing side) | $30,000 | $7,250 |
| Buying at $1,200,000 (buyer side) | $30,000 to the agent | $7,250 — remainder credited to you |
| Combined | $60,000 | $14,500 |
On the buy side, if the seller offers 2.5%, roughly $22,750 comes back to you as a closing cost credit. Between the listing savings and the buyer credit, the difference across both transactions is substantial — and entirely separate from the Prop 19 tax benefit.
Sequencing matters more than most people expect
You have two years between the sale and the purchase, in either order, and three years to file BOE-19-B. But those windows interact with ordinary transaction realities — contingent offers, rate locks, and whether you can carry two mortgages briefly. Deciding whether to sell first or buy first is a real strategic question, not a formality.
Planning a Prop 19 move? Roman handles both transactions and the sequencing between them, at a flat fee on each side rather than a percentage on both.
Talk to Roman About Your MoveHow a Flat Fee Agent Changes These Numbers
Roman Doktorovich is a flat fee realtor serving Los Angeles, Orange, Ventura and San Bernardino County — $7,250 for transactions under $1.5M and $9,250 at or above, for buyers and sellers alike.
That structure is different from a discount realtor or low commission realtor, who still charges a percentage — just a smaller one. A percentage still grows with the price of the house. A flat fee does not.
- Buying: when a seller offers a buyer's agent commission above the flat fee, the difference returns to you as a commission rebate credited at closing — roughly $15,250 on a $900,000 purchase at 2.5% offered.
- Selling: you pay the flat fee instead of a percentage listing commission. On a $1,000,000 sale, that is $7,250 rather than roughly $27,000 at 2.7%.
Full representation either way — not a limited-service flat fee MLS product. See full pricing → · Compare against traditional commission →