Disclaimer: I am not an insurance agent, broker, or attorney. This is a starting point for your own homework.
Policy terms and state rules vary. Read your own policy and talk to a licensed professional.
The flood insurance waiting period is 30 days. Thirty days between the day you buy a policy through the National Flood Insurance Program (NFIP) and the day it can start paying claims.
A very strong El Niño will peak this winter, and one of the most reliable things it does to the United States is run a conveyor belt of storms across the southern half of the country from California, to Texas, to Florida, and up the east coast from roughly December through March. Given the high probability of this happening, it makes it one of the few flood risks you can insure against in advance.
Also, it’s good to know that El Niño suppressed the 2026 hurricane season, but hurricanes typically come back with a vengeance as the influence of El Niño fades. So the 2027 hurricane season in the U.S. may be doozy. Another reason to get flood insurance now.
And if that wasn’t enough, this year the calendar has another deadline on it. The NFIP’s legal authority to sell and renew policies is only good through December 11, 2026. Congress has extended the program 36 times since 2017, instead of funding it outright.
Congress let the program lapse for 43 days during last fall’s shutdown, freezing new policies and renewals in the middle of real-estate closings nationwide, and again for three days in February. During a lapse, existing policies stay in force and claims get paid, but nobody can buy a new one, which can result in mortgages not getting funded, and home sales cancelled.
For all of these reasons and more, now seems like a good time to get yourself some flood insurance.
Your homeowners policy does not cover this
There is a misconception that can cost you a lot. And it took a long time to sink into my thick skull… Standard homeowners, renters, and commercial property policies exclude flooding! Water that comes from the sky and leaks through your roof is usually covered. Water that rises from the ground, the street, the bayou, the river or the coastal storm surge is NOT covered.
If you have never bought a separate flood policy, you do not have flood insurance. This sort of makes sense from a risk perspective. Leaking roofs are few and far between, while whole neighborhoods flooded are 100’s or 1,000’s of insurance claims all at once.
So a hurricane can take two policies to make you whole: a homeowners policy AND a flood policy. Homeowners who carry only the standard policy are, in the most literal sense, half-insured.
Flood insurance is not just for people who live in flood zones any more
The second misconception is that flood insurance is only for people in a “flood zone.” People treat the FEMA map as the last word. But the map is a mortgage requirement, not a real boundary. It’s based on historical data from the past 100 years or so. A warmer atmosphere holds more moisture, the rainfall records keep getting broken, and the flood maps are not keeping up with reality in a changing world.
Only about 4 percent of U.S. homeowners carry flood insurance. After Hurricane Helene, post-storm surveys in Pinellas County, Florida, found over 40,000 buildings touched by floodwater but only about 22,000 NFIP claims. Inland it was worse: Helene’s flooding in western North Carolina hit counties where coverage was in the low single digits, because almost nobody there was required, or even expected they would need to have flood insurance.
What a flood policy covers
Most flood insurance in the U.S. is written through the NFIP, backed by FEMA, and sold through ordinary insurance agents, or whatever company you use for your home insurance. The program had about 4.5 million policies in force this summer, and Florida holds more of them than any other state.
A growing private flood market offers higher limits, living-expense coverage, and sometimes better pricing, so it is def worth getting a quote at least. Make sure any policy you get has “contents” coverage (your personal property besides the building itself).
Here is what the NFIP pays for, and what it doesn’t.
| Residential | Non-residential / business | |
|---|---|---|
| Building coverage max | $250,000 | $500,000 |
| Contents coverage max | $100,000 | $500,000 |
| Waiting period | 30 days (exceptions below) | 30 days (exceptions below) |
| Basement | Structural and mechanical only; finished space and furnishings mostly excluded | Same |
| Additional living expenses | Not covered | — |
| Business interruption | — | Not covered |
| Vehicles | Not covered (covered by your auto insurance) | Not covered |
RENTERS! Contents coverage is separate from building coverage and if you are a renter, the landlord’s policy covers the walls and nothing that belongs to you. Check your renters policy, and find out whether it can cover flooding. It probably doesn’t, but you should be able to get an NFIP policy for flooding!
With the NFIP there is no living-expense coverage at all. If your house/condo/apartment is uninhabitable for a year, the NFIP pays your rebuild up to the limit and/or your contents cost, but not one night of your hotel or rented apartment. Same for a business: if your shop cannot open for three weeks because the floor is wet, NFIP pays to fix the floor and nothing for the three weeks. Businesses may need an add-on business interruption rider to their main insurance policy.
Exceptions to the 30-day rule
There are a few important exceptions to the 30-day rule:
- You are closing on a mortgage. If the lender requires flood insurance, the policy takes effect at closing with no waiting period.
- Your flood map just changed. If your property was newly mapped into a high-risk zone, there is a one-day waiting period for the first 13 months after the map takes effect.
- A wildfire caused the flood. Post-fire flooding and debris flow on federal land have their own exception. Relevant to the Southwest readers of the El Niño post, and to anyone downstream of a burn scar; less so to the Gulf coast.
Everyone else waits 30 days: a policy bought in late October starts paying in late November. A policy bought when the first big storm is in the forecast starts paying after the storm has gone.
What it costs
Since 2021, NFIP premiums have been set under a system called Risk Rating 2.0, which prices each property on its own flood risk (distance to water, elevation, foundation type, rebuild cost) rather than a broad zone.
For some homes the price went down. For a lot of coastal Gulf properties it went up, with annual increases capped by law at 18 percent per year for primary homes until the policy reaches its full-risk rate. The GAO’s figure for the median annual premium was about $689 at the end of 2022, on its way to roughly $1,300.
Premiums for the highest-risk coastal properties, in parts of Louisiana and the Galveston area for example, can run well above those state averages; an inland home in Austin or Atlanta can run a few hundred dollars per year, which makes it the cheapest catastrophic protection most households can buy.
| State | NFIP policies in force | Avg. annual premium | Share of homes with NFIP coverage |
|---|---|---|---|
| Texas | 560,914 | $1,080 | 4.5% |
| Louisiana | 396,854 | $1,171 | 18.7% |
| Mississippi | 47,754 | $1,269 | 3.5% |
| Alabama | 44,305 | $1,277 | 1.9% |
| Florida | 1,741,930 | $1,334 | 16.7% |
| US total | 4,447,536 | $1,212 | 3.1% |
Florida is the preview of what’s coming
If you want to know where flood and hurricane coverage is headed for the rest of the country, look at Florida. Between 2021 and 2023, after a run of storms that included Hurricane Ian (2022), roughly a dozen local insurers went bankrupt, national carriers stopped writing policies there, and homeowners who had never filed a claim got cancellation letters.
Everyone piled into Citizens, Florida’s insurer of last resort, which peaked at 1.42 million policies in 2023. Subsequently, Florida attempted to legislate its way back from the brink by making it harder for people to sue insurance companies for denied or reduced claims. Yet Floridians still pay the highest homeowners premiums in the nation, and the stability was bought by shifting more risk onto policyholders through higher deductibles, stricter roof rules, and thinner payouts.
Two Florida details matter wherever you live. First, hurricane deductibles: a separate deductible of 2, 5, or 10 percent of the dwelling limit, so on a $500,000 home a 5 percent deductible is $25,000 out of your pocket before the policy pays a cent. Second, as of January 1, 2027, every Citizens policyholder with wind coverage must also carry flood insurance, regardless of home value or flood zone. Expect other states, and possibly lenders generally, to study this experiment closely. One thing is for certain, Florida is not taking climate change into account. They are privatizing profit, and socializing risk. I’d expect the current system to only last a decade at most, maybe it won’t even survive the upcoming 2027 hurricane season. We’ll see.
What to do now
No-cost, this week. Look up your address on the FEMA Flood Map Service Center and note your zone. Then look at the chart above and remember that the zone is a floor, not a ceiling. Pull your homeowners or renters policy and confirm the flood exclusion for yourself.
Do a video home inventory this weekend: phone out, narrate every room, open the closets and drawers, capture serial numbers, store it in the cloud. The failure you are preventing is having to itemize your life from memory at the worst possible time.
Read the Climate Advisor’s guides to preparing for flooding and flood recovery. The FEMA FloodSmart.gov site also has a wealth of info, as does their site for insurance agents.
Low-cost, this month. Call your insurance agent (any agent who sells homeowners can write NFIP) or go online with your insurance company and get an NFIP flood insurance quote. And consider getting a quote for private flood insurance. Ask specifically about contents coverage and living expenses. Also, for the next section, ask if you need an elevation certificate or if they take care of that. Also, ask if you can get insurance discounts if your community participates in flood risk reduction, and if you can get a discount by meeting certain code building requirements.
And be sure to vet the carrier, not just the premium. Much of the Gulf Coast runs on smaller regional insurers; a dozen of Florida’s failed within three years after bearing the impacts of successive hurricanes. Before you chase the cheapest quote, check the insurer’s financial strength rating and its complaint index with your state insurance department. A low premium from a carrier that won’t exist after the next storm is not a bargain.
Medium effort, this fall. Get an elevation certificate if you don’t have one and your home is older; it can lower a premium and is required for some discounts. In reality, your insurance carrier may already have this info, or be able to easily autogenerate it. That was my experience with my home insurance company.
Find out if your city participates in the Community Rating System, which discounts every policy in town by 5 to 45 percent. On the wind side, get a mitigation inspection and ask about FORTIFIED credits when you re-roof. And fund both deductibles. My post on climate change and your money makes the longer case for keeping that cash where you can reach it.
If you are really ambitious, or you were going to work on these systems anyway… raise the water heater, HVAC, and electrical panel above the likely water line if they sit on a slab or are in a low crawlspace. One potentially low cost household project would be to make sure all your gutters are clear, and all drainage on your property is working, and repair anything that’s not. I found an old drainage line from my backyard to the street that was partly collapsed, so I dug it up and put in new pipe. Now my drainage is a lot better, and my backyard dries out faster after a big rain.
After the storm: document before you touch anything. Time-stamped photos and video of all damage, inside and out, before cleanup. They are what settles the wind-versus-water argument between your insurers. File promptly with both, keep every receipt, and if a claim stalls or comes in insultingly low, United Policyholders and your state insurance department’s complaint process are your first stops.
You can’t buy your way out of a waiting period once the storm is coming. The homeowners who came through Harvey, Ian, and Helene in decent shape weren’t lucky. They were covered, with both policies, and they knew what those policies said. The whole thing is one phone call and an afternoon. The clock on the policy starts the day you make your first payment. The clock on the weather started months ago and is ticking along. Don’t let El Niño catch you off guard.
Cover image from North Charleston on Flickr.