Your Carrier Filed for a Rate Increase in Your State. That Filing Is Public

The renewal letter says your premium is going up 14%. It does not say why, beyond a sentence about "rising costs." So you do what most homeowners do: assume it's about you, assume there's nothing to be done, and pay it.

Here is what almost nobody knows. Before your carrier could raise rates on your policy form in your state, it had to file a document with your state's insurance department stating the percentage it wanted, the date it would take effect, and the reasoning behind it. That filing is public. You can read it tonight, for free, in about fifteen minutes. And once you have, you'll be able to separate the part of your increase that hit every policyholder in your state from the part that is specific to your house — which is the only part you can do anything about.

How a rate change actually gets approved, in plain language

Insurance rates are regulated at the state level. A carrier cannot simply decide to charge more; it has to file a rate change with the state Department of Insurance (in some states the Division, Office, or Bureau of Insurance — the function is the same). The filing says, in effect: here is the book of business we write on this policy form in your state, here is what we have paid out against it, here is what we expect to pay out, and here is the overall rate change we need to keep the two in balance.

States handle these filings in one of a few ways. In prior-approval states — California, New York, New Jersey, and a handful of others — the department must sign off before the new rate can be used. In file-and-use states, the carrier files and can begin using the rate after a short review window unless the regulator objects. A few states use variants of each. The practical difference for you is speed, not transparency: in every model, the filing exists, it's on the record, and the requested change is stated as a number.

Two things worth understanding about that number. First, it's an overall rate level change across every policy on that form in the state — some policyholders get more, some less, depending on how the carrier's rating factors apply to their home. Second, the filing belongs to a specific legal entity, and carriers often operate several in one state. The filing you want is the one for the company named on your declarations page.

None of this is hidden. Regulators require it so the reasoning is on the record. The gap is that no one has ever handed a homeowner the instructions.

Finding your carrier's filing — the state DOI site and SERFF, step by step

Almost every state accepts rate filings through a shared national system called SERFF — the System for Electronic Rate and Form Filing, run by the National Association of Insurance Commissioners. Most states expose the public portion of it through a portal called SERFF Filing Access, and there is no charge to use it.

Here is the process:

• Get your exact company name. Look at your declarations page — the first page or two of your policy packet. The insurer is listed by its legal entity name, which is often not the brand name. Write it down exactly.
• Open your state's SERFF Filing Access page. Search for "SERFF Filing Access" plus your state, or go through your state insurance department's website under "rate and form filings." Accept the user agreement.
• Set the search. Business type: Property & Casualty. Type of insurance: Homeowners. Company name: the legal entity from step one. Filing type: Rate (or Rate/Rule). Date range: the last 12 to 18 months.
• Sort by date. The most recent rate filing with a disposition of "Approved," "Filed," or "Acknowledged" is almost certainly what's driving your renewal.

A few states route some filings through their own systems rather than the public SERFF portal. If you don't find your carrier, check the state department's own filing search page, or call its consumer line — they will look it up for you.

Reading it: requested change, effective date, and the stated justification

A rate filing has more pages than you need. Three parts matter.

The rate/rule schedule or filing summary. This is where the number lives. Look for "overall rate level change," "overall percentage change," or "requested rate change." You'll often see two figures: the change requested and the change approved — they are not always the same. You may also see a range: "minimum -5%, maximum +32%" — meaning that across all policyholders on the form, individual changes fall between those bounds.

The effective dates. Filings list one date for new business and one for renewals. If your renewal date falls after the renewal effective date, the filing applies to you. If it falls before, you'll feel it next year.

The actuarial memorandum or filing memorandum. This is the justification, and it is more readable than it sounds. It will typically cite some combination of: loss trends (what claims have cost, and how fast that cost is rising), catastrophe load (modeled hurricane, wildfire, hail, or severe storm exposure), reinsurance costs (what the carrier pays to insure itself, which has risen sharply since 2022), and expense and profit provisions. When you see "loss cost trend of 9% annually" or "reinsurance costs increased 40%," you are looking at the real reason your premium went up, stated by the people who set it.

Some supporting exhibits will be marked confidential or trade secret — carriers can request that competitive detail be withheld. The requested percentage and the memorandum's stated reasoning are almost always public.

The 2026 spread — why California, Nebraska, New Mexico and Georgia look nothing like Maine

Read enough filings and the pattern in this year's numbers stops being mysterious.

Insurify's 2026 projections put the national average premium at about $3,057, up roughly 4% after a 12% jump in 2025. But that average hides a spread of nearly twenty points. California is projected up about 16%, as carriers recover from the early-2025 wildfires and adopt more granular risk modeling. Nebraska is projected up 13% — on top of a 25% increase in 2025 — after a run of hail and tornado seasons in which insurers there paid out roughly $136 in claims for every $100 of premium collected in 2024. New Mexico (about 11%) is a wildfire story. Georgia (about 10%) is severe convective storms and rising rebuild costs.

At the other end, five states are projected flat to slightly down: Hawaii, Massachusetts, Maine, Louisiana, and Rhode Island. Louisiana's case is instructive — rates surged 39% in 2024, then went flat as the market stabilized and the state pushed mitigation programs. Rates catch up to losses, and then they stop.

This is what the filing tells you that the renewal letter doesn't: your increase is mostly a function of where your house is and what has been happening to every house near it. Identical homes in Omaha and Portland, Maine, are living under completely different filings. Neither carrier is doing anything unusual. They are pricing two different states.

Separating the statewide increase from the part that's about your home

Now the useful step. Take the approved overall rate change from the filing and compare it to your own renewal.

Say the filing shows an approved change of 9% on your policy form, and your renewal went up 14%. Roughly nine points of that is statewide — it applied to everyone on the form, and no phone call will move it. The remaining five points came from something about your specific policy. There are only a few places it can come from:

• Your Coverage A limit went up. Most policies carry an inflation guard that raises the dwelling limit each year, typically 2% to 6%. More coverage costs more premium. Check the limit against last year's declarations page.
• A rating factor changed. Your roof aged into a new bracket. A claim from two or three years ago is still on your record. A protective device credit fell off because the carrier's file shows no verification. Your territory was re-rated after the carrier updated its catastrophe model.
• An endorsement was added or a discount was removed. These show up on the endorsement list and the discount lines of the declarations page, and they are easy to miss year to year.

The point is not to argue with the statewide portion — a regulator reviewed it, and the reasoning is in the memorandum. The point is that the home-specific portion is the only piece with any give in it, and you can't work on it until you've isolated it.

What to do with what you find, at renewal and before it

Once you know the split, the conversation with your agent changes from "why did this go up so much" to something specific: "The approved filing was 9%. I'm at 14%. Walk me through the other five points." An agent can answer that question in ten minutes with your file open. It is a much better use of everyone's time than a complaint.

Then work the home-specific factors, one by one. If a protective device credit is missing — a monitored alarm, a water leak detection system with automatic shutoff — the fix is documentation: the installation certificate, the invoice, dated photos. If the roof year on file is wrong, the fix is the roofing invoice. If a claim is aging off soon, know the date.

And before next year's renewal, spend fifteen minutes on SERFF in the spring. Filings are typically submitted months before they take effect. If your carrier has filed for a 12% increase effective in August, you'll know it in April — with time to shop, adjust deductibles, or get the documentation in order before the number lands in your mailbox.

The statewide portion of your premium is set by a public document. The home-specific portion is set by your carrier's file on your house. The first one you can read. The second one you can shape — but only if you have the record to shape it with.

That record is what Rafter builds. Rafter's AI-powered home risk assessment produces a documented profile of your home — roof age and condition, systems and their service history, protective devices with model and serial numbers, the updates that should be on your carrier's file and often aren't. It generates a prioritized mitigation plan for the risks that drive rating factors, and it holds the dated documentation your agent needs to get credits applied and errors corrected. When the next renewal arrives, you'll know which part of the increase is your state's and which part is yours — and you'll already have the file that answers for the second part.

Pull your carrier's filing this week. Then compare it to your declarations page. The gap between those two numbers is where your next conversation with your agent should start.