"Buying a Home in Missouri: How Do You Price Earthquake Coverage Before You Close?"

A Missouri homeowners policy does not cover earthquake damage. You add that coverage by endorsement on the homeowners policy or by buying a separate policy, and its deductible is a percentage of your coverage amount rather than a flat dollar figure. Missouri's insurance department publishes its own annual look at the market, so you can see what is being offered before you close.

I'm Jeff Moran, a mortgage broker in Bluffton, South Carolina, originating since 1996, NMLS #483943, through C2 Financial Corporation, licensed in fifteen states, including Missouri.

The home is going to be insured either way, so this is not a question about whether you can get coverage. Earthquake coverage is a separate decision that you make on your own, and you can take it or leave it. In Missouri you can look up a good deal of the answer yourself, and doing that while you are still negotiating is a lot more useful than doing it after you move in.

Does a Missouri homeowners policy cover earthquake damage?

No. The ordinary homeowners contract leaves earth movement out. The Missouri Department of Commerce and Insurance says the same thing plainly on its own consumer pages: earthquake protection is not inside a standard homeowners or renters policy. Somebody who wants it either attaches an endorsement to the policy they already have, or buys a separate earthquake policy.

Both routes get you to the same place, and which one your agent offers usually depends on which companies that agent can get a policy from. Asking for both is a fair question.

An earthquake endorsement covers shaking damage to the structure and, on most policies, to what is inside it. The department's consumer report, Residential Earthquake Coverage in Missouri, sets out the coverage description in the state's own words, and reading it before you compare two quotes will tell you what you are comparing.

How does an earthquake deductible actually work?

An earthquake deductible is written as a percentage of your coverage amount. A homeowners deductible is normally a flat dollar figure, and this one is sized off how much dwelling coverage you carry on the home. So if you insure the structure for more, the deductible goes up with it, on the same policy, without anybody rewriting the endorsement.

Most policies also carry a separate deductible for contents, which means the damage to the building and the damage to what is in it are measured against two different numbers before anything gets paid.

Deductibles in the range of ten to twenty percent of the coverage amount have been common in this market. The department's 2026 statement on availability reports that the share of the Missouri market offering deductibles under ten percent has grown, and that more insurance companies are selling new earthquake policies than the year before. Those proportions move every year, so the current edition of the report is the one to read rather than any figure you find in an article.

You can work out your own figure in about a minute. You take the dwelling coverage amount on the quote, apply the deductible percentage to it, and what you get is the money you would spend yourself before the coverage does anything. That dollar figure belongs next to the annual premium, because you are deciding on both of them at once.

Where does Missouri publish what the market is offering?

Missouri's insurance department publishes an annual look at residential earthquake coverage in the state. It covers which companies sell it, which ones have stopped taking new customers, and what deductibles they are offering. It also separates the southeast corner of the state from everywhere else, because the two do not look alike. The department's earthquake pages hold the current edition and a shopping guide meant to be used while you are comparing.

The department has that data because a Missouri law requires it. Under RSMo 374.405, the director sets the statistical bases for reporting premium and loss data on homeowners, dwelling-owners, renters and residential fire policies. Each insurer then reports that data to the director every year, and the director can review and verify what came in. Insurers report their earthquake numbers the same way, so the department is describing the Missouri market rather than the national one.

For a buyer that means the person quoting you is not your only source. You can read what the state says the market looks like, then listen to the quote with that in front of you. If it falls well outside what the report describes, that is a reasonable thing to ask about, and a good agent will have an answer.

Which part of Missouri does the department watch most closely?

The southeast. The New Madrid Seismic Zone runs up through the Bootheel, and the department has tracked a group of counties there as its own region for years, reporting on them separately from the rest of the state. The counties in that group have included Dunklin, Mississippi, New Madrid, Pemiscot, Scott and Stoddard, with the current edition naming the exact set it used.

Fewer companies will sell new earthquake coverage there, so a buyer has fewer quotes to compare. The deductibles offered there have also run higher than the statewide picture, which produces a bigger out-of-pocket number on a home of the same value.

If you are buying in the Bootheel or anywhere in the southeast, you'll want to start the insurance conversation earlier than you otherwise would. Finding a second and a third quote simply takes longer when fewer companies will sell it to you.

Everywhere else in Missouri the coverage is easier to come by, and the question comes down to whether the premium and the deductible are worth it to you on that particular property.

Does your mortgage require earthquake coverage in Missouri?

Almost never.

A mortgage requires you to insure the home, and the policy that satisfies the requirement is the ordinary homeowners policy that covers fire, wind, hail and the rest of what a home is normally insured against. Earthquake damage is outside that policy, so adding coverage for it is your decision rather than a condition anybody in the loan is waiting on. Since nobody in the loan is asking for it, the coverage tends to stay unmentioned unless you raise it. Your own loan documents are the place to confirm it for your file, and your closing agent can point you to the paragraph.

If you add the coverage as an endorsement on the homeowners policy that your escrow account pays, the premium on that policy goes up, and the escrowed amount goes up with it. What the escrow account holds explains how that figure gets set and why it gets recalculated later. If you buy a separate earthquake policy instead, it is usually outside the escrow account and you pay it yourself on its own schedule.

The two routes land in different places in your budget, so you'll want to know which one you picked. Choose the endorsement on the escrowed policy, and the payment you were quoted is the payment you make. Choose a separate policy, and your mortgage payment stays what it was, while you pay the earthquake premium yourself on its own schedule.

What are the steps, in order?

1. Your homeowners quote carries the dwelling coverage amount, and every earthquake number is sized off that figure, so it comes first.
2. You'll want to read the current edition of the department's earthquake report before you take a quote, so you know roughly what the Missouri market is doing before you compare it to what you're quoted.
3. You'll want the earthquake number from your insurance agent both ways, as an endorsement on the homeowners policy and as a separate policy, along with which companies they can get it from.
4. For each quote, please ask for the deductible stated in dollars rather than as a percentage, for the dwelling and for contents separately.
5. You'll want the annual premium and both deductible dollar figures written down on one page together, so you can compare them side by side instead of holding them in your head.
6. If you are buying in the southeast, you'll want to give yourself an extra week or two, since fewer companies sell it there and a second quote takes longer to find.
7. Once you have a quoted homeowners premium rather than an estimate, you'll want whoever is working on your loan to have it, so the payment picture you are working from is the accurate one.

Where does this go wrong?

Sizing the deductible off the purchase price. The percentage applies to the dwelling coverage amount, and on many homes that figure is not the same as what you paid. Running the math off the wrong number gives you a deductible estimate that can be off by a lot in either direction.

Treating one quote as the market. Earthquake pricing varies between companies the way the rest of insurance does, and in Missouri you have a published description of the market to read alongside whatever you were handed. An independent agent who can get quotes from several companies is worth the call here for the same reason they are worth it on the ordinary homeowners quote.

Leaving it until after closing. The coverage is available afterward and the decision itself is the same one. By then you have already decided what to offer and what to ask the seller for, so a number that might have shaped both of those arrives too late to do it.

An example, with invented numbers

Numbers below are made up to show the mechanism. Nothing here is a quote, a rate, or a prediction about a real property.

Say you are buying a ranch house in southeast Missouri, and the homeowners quote insures the dwelling for $280,000 with $140,000 of contents coverage. The agent offers earthquake as an endorsement with a fifteen percent deductible on the dwelling and a separate fifteen percent on contents.

Dwelling coverage                        $ 280,000
Deductible at 15%                        $  42,000

Contents coverage                        $ 140,000
Deductible at 15%                        $  21,000
                                         ---------
Your own money, before the coverage pays  $  63,000

A second company quotes the same property with a ten percent deductible and a higher premium. That is a $28,000 dwelling deductible instead of $42,000, for more money every year. Which of those is the better answer depends on how much cash you would have available after closing, and that is a question about your situation rather than about the policy.

The premium difference is what you feel every month in the payment, and the deductible difference is a much larger number that only ever surfaces on the day you make a claim. Both belong in the comparison, and they are easy to weigh once they are written down beside each other.

Where to start

When you are ready, you can see rates for your own scenario with a Missouri tax and insurance estimate included in the payment. There is no credit pull, no account, and nobody calls you afterwards. You will see several options on one sheet, and you can choose the option that works best for you.

When you want something a listing agent will take seriously, a Missouri pre-approval means your income, debts and credit have actually been reviewed rather than estimated. How a Missouri closing works covers the rest, and the Missouri disclosure about a property's history is the other state-specific item worth reading before you write an offer.

Nothing here is a loan approval, a denial, a commitment to lend, or insurance advice. Coverage terms belong to the policy and the company issuing it, and what applies to your home is a question for a licensed Missouri insurance agent. No letter from anyone is a loan commitment; final approval depends on the property, the appraisal and full underwriting.

Common questions

Is earthquake insurance required in Missouri?

No. It is not required by state law and it is rarely a condition of a mortgage, because an ordinary homeowners policy satisfies what the loan asks for and earthquake damage is outside that policy. The decision belongs to the owner. That is also why it tends not to come up during a purchase unless somebody raises it, and the person best placed to raise it is usually the buyer.

How much is earthquake insurance in Missouri?

There is no single answer, because the premium turns on where the property is, how it was built, when it was built, how much dwelling coverage you carry and which deductible you pick. A quote given without the address behind it cannot account for any of that. The Missouri Department of Commerce and Insurance publishes an annual look at what companies are offering statewide and in the southeast. That is the closest thing to a general answer, and a quote on your own address is the one that decides it.

What does a percentage deductible mean on an earthquake policy?

It means the deductible is calculated as a percentage of your coverage amount rather than being a set dollar figure. On a policy with a fifteen percent deductible, the first fifteen percent of your dwelling coverage amount is money you would spend yourself before the coverage pays anything. Most policies apply a separate percentage to contents coverage, so there are two deductibles rather than one, and they are measured against two different coverage amounts.

Which Missouri counties have the hardest time getting earthquake coverage?

The southeast counties nearest the New Madrid Seismic Zone. Missouri's insurance department reports on that region separately, and the counties it has tracked include Dunklin, Mississippi, New Madrid, Pemiscot, Scott and Stoddard. Fewer companies will sell new earthquake coverage there, and the deductibles offered have run higher than the statewide picture. The current edition of the department's report names the exact county set it used and describes what the market looks like that year.

Does adding earthquake coverage change my mortgage payment?

It can, depending on how you buy it. If the coverage is added as an endorsement to the homeowners policy that your escrow account pays, the premium on that policy rises and the escrowed portion of your payment rises with it. If you buy a separate earthquake policy, it is usually outside the escrow account and you pay it directly, so the mortgage payment itself does not change even though your annual cost of owning the home does.

When should a Missouri buyer ask about earthquake coverage?

In the same week you get your homeowners quote, which is best done before you write the offer. Both numbers come from the same conversation with the same agent, and having them early means the cost is something you weighed while you still had room to negotiate. In the southeast, where fewer companies sell it, an extra week to collect a second and third quote is worth giving yourself.