Insurance Is the New Interest Rate: What the October 15 FAIR Plan Increase Does to the House You Can Buy

Most buyers I work with spend weeks on the rate. They watch the ten-year Treasury yield, they ask about locking, and they call me on a Tuesday because they saw something on the news. I understand it. The rate is the number everybody talks about, it is the number on every ad, and an eighth of a point feels like something you can win.

Then, several days after getting into escrow, the homeowners’ insurance quote comes back.

I’m CJ Kerls, a Bay Area and Sonoma County mortgage lender. I have watched that single homeowners’ insurance quote do more damage to a purchase than any rate move in the last three years. Not because the buyer did anything wrong, and usually not because the house is in some obvious fire canyon. Insurance stopped being a formality in this state and became a qualifying factor, and almost nobody restructured their process around that.

On October 15, it gets more expensive.

The question is not “how much is insurance.” The question is “how much house purchasing power did insurance just take.”

What Actually Changed

How much are FAIR Plan rates going up on October 15?

The California Department of Insurance approved an average increase of 29.1 percent on FAIR Plan dwelling policies, effective October 15, 2026, for both new and renewal policies. The Plan has been clear that the average is not what most people will experience. The bulk of the increase sits in the wildfire portion of the premium. A property with real brush exposure sees a much larger number, and some policyholders will actually see a decrease. The original filing asked for 35.8 percent after the January 2025 Los Angeles firestorms.

That is the headline. The part underneath it matters more.

What the Stanford study found

In June, Stanford’s Climate and Energy Policy Program published a study built on loan-level mortgage data. That is a meaningfully better lens than the survey data everyone has been arguing over.

Average California homeowners premiums went up 84 percent between the end of 2020 and March 2026. Deductibles went from an average of $1,813 to $2,553 over the same stretch. And the FAIR Plan, the state’s insurer of last resort, went from covering under 2 percent of California single-family homes to about 5 percent.

The deductible number is a second, quieter increase nobody puts in a headline. The FAIR Plan number means the insurer built for a small slice of the market now carries one home in twenty.

Here is the finding I keep coming back to. The researchers found FAIR Plan dependence showing up on mortgages in moderate and low wildfire risk ZIP codes at roughly twice the Plan’s overall market share. Read that again if you live somewhere you consider safe. The crisis is not staying in fire country. It is leaking into the flats.

One more number, and I want to be straight about it because it cuts against my argument. In the first quarter of 2026, 5.6 percent of new owner-occupied single-family mortgage originations used the FAIR Plan. That is the “more than one in seventeen” figure that got picked up everywhere, and it is down from 8.1 percent in the first quarter of 2025. Statewide, the acute phase appears to be easing. I will come back to that at the end because it is real and it matters.

Does the statewide easing apply in Sonoma County?

Not in the files I see. Neither do the agents I work with. Statewide averages are made of a lot of Sacramento and a lot of Fresno. If you are buying above Healdsburg, in the Mayacamas, out toward Cazadero, or anywhere with a brush score that made a carrier flinch after 2017, the state trend is not your trend. Your file is priced on your parcel. You can look up that parcel’s state hazard rating on CAL FIRE’s Fire Hazard Severity Zone map.

The Part Your Loan Officer Probably Is Not Explaining

Here is the mechanism that turns an insurance premium into a smaller house.

When we qualify you, we are not looking at the loan amount. We are looking at a monthly payment, and comparing it to your income. The payment we count is PITI: principal, interest, taxes, and insurance, plus HOA dues if there are any. Every one of those four letters competes for the same dollar of your income.

Which means insurance and principal are on a seesaw. Every dollar per month of premium is a dollar per month that cannot go toward paying for the house. You do not get to plead that the insurance is not your fault. Underwriting counts it exactly the same as it counts the loan payment.

So the question is not “how much is insurance.” The question is “how much house purchasing power did insurance just take.”

The Sonoma Math

The buyer qualifies for $1,200,000 with a private policy

Start with a buyer who qualifies for a $1,200,000 home in western Sonoma County. With 20 percent down, that is a $960,000 loan on a 30-year fixed. Using 6.5 percent as an example rate, principal and interest run about $6,068 a month. Property taxes at roughly 1.25 percent add about $1,250 a month, a rate closer to what most California parcels actually carry once local assessments are added in. A private-market insurance policy at $3,000 a year, as an example, adds $250 a month.

Total: about $7,568 a month, and assume that is right at the edge of what this buyer’s income allows. Everything that follows comes out of that same $7,568.

On the FAIR Plan before October 15, that drops to about $1,107,000

Now suppose every admitted insurance carrier declines to write a policy on this house. Admitted carriers are the insurers licensed by California and subject to its rate rules, the ones most buyers assume they will get. With all of them saying no, this buyer ends up on the FAIR Plan. A FAIR Plan dwelling policy on a foothill property in this county averages roughly $7,000 to $8,000. That is not the worst I have seen. For this example, take the low end, $7,000, and assume $2,800 for a Difference in Conditions policy to cover the liability, theft, water damage, and loss of use the FAIR Plan does not touch. DIC pricing varies widely by property and carrier. Insurance is now $9,800 a year, or $817 a month.

The $7,568 ceiling has not moved, but insurance now takes $567 more of it every month. To stay within it, this buyer now qualifies for about $1,107,000. Same buyer, same income, same credit, same rate. Ninety-three thousand dollars of house, gone, because of a line item on a page that arrives after you have already fallen in love with the place.

After October 15, it drops again to about $1,079,000

On October 15, the FAIR Plan portion goes up about 29 percent, from $7,000 to roughly $9,030. With the same DIC policy, insurance is $11,830 a year, or $986 a month. The same buyer now qualifies for about $1,079,000.

How much borrowing power does October 15 cost?

In this example, about $28,000 less house, or about $22,000 less loan: the same buyer qualified for about $1,107,000 before October 15 and about $1,079,000 after. One policy change, with no other variable moving.

Nobody adjusted a lock. Nobody’s credit changed. The Fed did nothing to interest rates.

*Illustrative figures for a hypothetical property, not a quote. Premiums vary by address, construction, wildfire exposure, coverage, and carrier. The after-October 15 row raises only the FAIR Plan portion, by the roughly 29 percent average; individual policies vary. Qualifying prices use the same example loan terms and $7,568 monthly payment, with property tax recalculated at each price. Not an offer or commitment to lend, and not a representation that any borrower will qualify.

Two honest caveats. This math only bites if you are constrained by your debt-to-income ratio, and plenty of buyers are not. And if your income has room, the extra premium is not costing you a house. It is just costing you $736 a month for the next thirty years, which is its own kind of problem.

Why a FAIR Plan Policy Alone Will Not Close Your Loan

There is a second trap in the FAIR Plan file, and it is the one almost nobody sees coming.

What does a FAIR Plan policy cover?

Fire, smoke, lightning, and internal explosion. That is generally the whole list. The FAIR Plan is a fire policy and close to nothing else. It does not cover your liability if a guest is hurt on your property. It does not cover water damage from a burst pipe, or theft, or a tree coming through the roof.

And it does not cover loss of use, the coverage that pays for a rental while your home is rebuilt. That matters enormously. If your house burns and you have no loss-of-use coverage, you are paying rent and a mortgage at the same time.

A lender will not fund a loan against fire coverage alone. Standard conventional underwriting requires real liability coverage, loss of use, and protection against the everyday perils the FAIR Plan ignores. A fire-only policy does not clear those conditions.

Is a DIC policy required to close?

On a FAIR Plan file, yes. A FAIR Plan buyer needs a second policy: a Difference in Conditions wrap, usually just called a DIC. The DIC fills every gap the FAIR Plan leaves. Your insurance agent sends the lender both declarations pages, the FAIR Plan and the DIC, and only together do they satisfy the requirement.

Here is the part that surprises people. The DIC is not optional extra protection you can skip to save money. Because it is required, its premium is part of your insurance cost and lands in your qualifying payment right next to the FAIR Plan premium. The number that competes against your income is the combined one, not just the FAIR Plan piece.

This is not a rare situation. The Stanford researchers found that about 40 percent of FAIR Plan policyholders carry an additional policy on top. That pairing costs them an average of $2,000 more a year than the FAIR Plan alone.

Most buyers have never heard the phrase Difference in Conditions until an agent says it in the second week of escrow. By then the full cost is set, and it is already shaping how much your loan approval will let you borrow. That is exactly why I move insurance to the front.

You Are Paying for the FAIR Plan Even if You Never Touch It

Everything above assumes you are the unlucky buyer who cannot get a private policy. Here is the part that reaches everyone else. It is the piece I have not seen anyone connect to buying a house.

Why homeowners outside the FAIR Plan are paying for it

After the January 2025 Los Angeles fires, the FAIR Plan faced claims it could not cover from premiums alone. It has the statutory power to assess its member insurers, which is essentially every company writing property coverage in California, and it used it. The Department of Insurance then issued guidance allowing those insurers to pass part of that cost on to their own policyholders.

Not to FAIR Plan customers. To their own customers, in Santa Rosa and Sacramento and Fresno, people who had no connection to the FAIR Plan and were never asked.

What did the June 30 ruling decide?

It let the surcharges stand. Consumer Watchdog sued, arguing the Commissioner had no authority to move what it calculated as more than $400 million of insurance company expense onto California homeowners. On June 30, 2026, the Los Angeles Superior Court denied the petition.

I am not going to tell you whether that ruling was right. It is genuinely contested, the policy question underneath it is hard, and reasonable people land in different places. What I will tell you is the mechanical consequence, because that is my job.

The cost of California’s insurer of last resort no longer stays with the people who use it. It is spread into the premium of insured homeowners across the state. Which means it lands in the insurance line of a PITI calculation. And that means it is quietly trimming borrowing power for buyers who live nowhere near a fire zone and are certain none of this applies to them.

That is what I mean when I say insurance is the new interest rate. At least a rate change is visible and everybody talks about it. This one showed up as a line on a renewal notice most people filed without reading.

Cash to Close Gets Hit Too

Every buyer pays for homeowners insurance at closing, whatever the policy. The first year’s premium is paid up front. If you are escrowing, we also collect a cushion for the impound account, the account your loan servicer uses to pay your taxes and insurance on your behalf. That cushion is often about two months of premium. So the private-market buyer pays for insurance at closing too; the difference is the size of the premium.

Here is what insurance adds to cash to close for the same three versions of this buyer, using the first year’s premium plus a two-month cushion:

Private-market policy: $3,000 plus about $500, or about $3,500.

FAIR Plan plus DIC, before October 15: $9,800 plus about $1,600, or about $11,400. That is about $7,900 more than the private-market buyer.

FAIR Plan plus DIC, after October 15: $11,830 plus about $2,000, or about $13,800. That is about $10,300 more than the private-market buyer, and about $2,400 more than the same FAIR Plan buyer before October 15.

Buyers plan their cash to close around down payment and closing costs. Insurance is usually a small line in that plan. In a FAIR Plan file it is not, and finding out in the final week is a bad way to find out.

The Appraisal Does Not Care

Worth saying plainly: an appraiser is not adjusting your value for a five-figure insurance bill. Comparable sales are comparable sales.

So insurance cost does not reduce what you pay for the house. It only reduces what you can borrow to pay for it. Those are very different things, and the gap between them comes out of your down payment or out of your offer.

Sellers are starting to feel this from the other direction. A property that only insures through the FAIR Plan has a smaller buyer pool at every price point. A chunk of otherwise-qualified buyers hit their ceiling and walk. That is a value story, and it has barely started showing up in list prices.

The Order of Operations That Prevents All of This

I have moved insurance to the front of my process, before the pre-approval letter goes out. Not because it is convenient. Because I got tired of watching the alternative.

When should you get a homeowners insurance quote?

Before you write the offer, or at the absolute latest in the first three days of escrow. Here is the sequence I ask buyers to follow.

1. Get a real quote on the address. Not an estimate, and not a rule of thumb. A quote on that house, with that roof, that brush clearance, and that distance to a fire station. Addresses two hundred feet apart can price differently.
2. Ask specifically whether the private market will write it at all. If the answer is the FAIR Plan, ask for the DIC quote in the same breath. A FAIR Plan number without a DIC number is half an answer, because on a FAIR Plan file you are buying both.
3. Bring the real premium back to me before we finalize the pre-approval amount, so the number on your letter is a number you can actually close on.

In the California Association of Realtors 2024 member survey, 13 percent of members lost at least one escrow to insurance problems. That was double the prior year’s share. The figure is a couple of years old now, and I would not bet on it having improved in this county. Nearly all of those deals died the same way: late.

If you or your seller are already on the FAIR Plan

Shop it again right now. Several carriers have restarted writing in California and some are specifically targeting FAIR Plan customers. CSAA has been offering quotes to qualifying AAA members in Northern California who currently hold FAIR Plan policies. That is about as directly relevant to Sonoma County as an insurance development gets. Mercury has committed to writing new policies in wildfire-distressed areas, with FAIR Plan depopulation named as part of the plan. If nobody would write you in 2024, that answer is two years stale. Ask again.

Ask about hardening discounts too. The FAIR Plan updated its wildfire hardening discount program in November 2025. There are now up to twelve individual discounts applied to the wildfire portion of the premium. A Dwelling Fire policyholder who qualifies for all twelve can see up to 16.4 percent off that portion. On a property where the wildfire component is most of the bill, that is real money. Some of it is achievable with work a seller could complete during escrow, if you ask.

Homes above $3 million in replacement cost

Start earlier. Replacement cost is what it would take to rebuild the house, which is not the same as its market value. The FAIR Plan caps dwelling coverage at $3 million. Above that you are layering excess coverage from specialty carriers at meaningfully worse pricing. That is a different problem with a longer lead time.

The Market Is Turning. It Will Not Turn in Time for Your Escrow.

I do not want to write a doom piece, because the picture has two sides and the second one has gotten stronger this year.

The state’s Sustainable Insurance Strategy traded something real to carriers. They can now use forward-looking catastrophe models and reflect reinsurance costs in their rates, which they could not do under the 1988 rules. In exchange, they write meaningfully more business in wildfire-distressed areas. That trade is producing results. Farmers, the second largest home insurer in the state, eliminated its cap on new California homeowners policies this spring. It had previously limited itself to 9,500 a month. The list of carriers expanding under the strategy now includes Farmers, Mercury, CSAA, USAA, AAA SoCal, Travelers, Horace Mann, Pacific Specialty, and California Casualty.

The FAIR Plan’s own numbers agree. It added roughly 16,000 residential policies in the first quarter of 2026, about 2.4 percent quarterly growth. From 2024 through September 2025 it was absorbing 35,000 to 50,000 per quarter. Pair that with the Stanford origination data and you have two independent sources pointing the same direction. The bleeding has slowed.

So here is the honest shape of it. Relief is arriving, and it is arriving first for buyers who can reach the private market. October 15 lands hardest on the ones who cannot. If you have options, this is a better year than last year to go find them. If you do not, the gap between you and the buyer who does is about to get wider. Every dollar of that gap comes out of your loan amount.

Either way, policy relief runs on a multi-year clock. Your escrow runs on a thirty-day one.

The Bottom Line

For most of my 35+ years in this business, insurance was the boring line item nobody asked about. A buyer called an agent, answered five questions, got a policy, and never thought about it again. That world is gone in California and I do not expect it back soon.

What replaced it is a line item with the power to change the price of the home you can buy by six figures. Nobody prices it until after the offer is accepted, and no amount of rate shopping can offset it. On October 15 it gets 29.1 percent more expensive for the buyers who have the fewest options.

If you are shopping in Sonoma County this fall, get the insurance quote first. Everything else in your file is negotiable or lockable. That one is not, and it is the only number in the transaction that can quietly take your house away.

Sources

• KRCR News: the approved 29.1 percent increase, its October 15, 2026 effective date, its concentration in the wildfire portion, and the original 35.8 percent filing.
• Stanford Climate and Energy Policy Program, “The Evolution of the California Homeowners Insurance Market in the Face of Growing Wildfire Risk” (June 2026), via Stanford Report and Stanford Woods Institute: premiums, deductibles, FAIR Plan share, and the ZIP code findings.
• Beinsure: FAIR Plan share of new mortgage originations and the additional-policy findings.
• California Department of Insurance: FAIR Plan coverage, the DIC policy, and the $3 million dwelling cap.
• Consumer Watchdog: the 2025 assessment, the insurer surcharge, and the $400 million figure.
• Consumer Watchdog v. Lara, June 30, 2026: court ruling (PDF) and The Legal Description.
• California Department of Insurance: FAIR Plan policy growth, first quarter 2026.
• California Department of Insurance: carriers expanding under the Sustainable Insurance Strategy and the Farmers cap removal.
• California Department of Insurance (PDF): Mercury and CSAA commitments.
• San Lorenzo Valley Post: the FAIR Plan wildfire hardening discount program, effective November 15, 2025.
• San Francisco Chronicle: California Association of Realtors 2024 member survey.
• CAL FIRE Office of the State Fire Marshal: Fire Hazard Severity Zone map and address lookup.