NFIP flood insurance explained

The National Flood Insurance Program (NFIP) is the federal program, run by FEMA since 1968, that sells flood insurance to homeowners, condo owners, renters and businesses in communities that adopt floodplain rules. For a one-to-four family home it offers up to $250,000 in building coverage and $100,000 in contents coverage, on a one-year policy that usually starts 30 days after you buy it. It is the largest source of flood coverage in the country, and its limits, exclusions and claim rules are set by a federal contract, not by the company that sells it to you.

How the program works

The NFIP is a three-way arrangement. Communities agree to adopt and enforce floodplain management rules; in return, property owners there can buy federally backed flood insurance. FEMA's flood insurance page (updated January 2026) counts about 22,600 participating communities. You can buy a policy if you live in a participating community, which is most of the country, and FEMA's FMIX line (877-336-2627) can confirm yours.

You do not buy from FEMA directly in most cases. FEMA says the program is delivered through a network of more than 47 insurance companies in the Write Your Own (WYO) program, plus NFIP Direct, which FEMA runs itself. A Write Your Own (WYO) insurer sells and services the policy and handles the claim, but it does not set the terms or the price. FloodSmart notes that because every seller uses the same pricing approach, "each one offers the same rates." You are choosing an agent and a service experience, not a lower premium.

By size, the program insured 4,436,679 policies and about $1.23 trillion in coverage as of September 30, 2026, according to FEMA's NFIP by the Numbers report. That is down 4.4% in a year. Congress has to keep authorizing the program, usually in short extensions; as of this writing it runs through December 11, 2026. A lapse stops new policies and renewals from being issued but does not cancel existing policies or stop claim payments, a point covered in NFIP reauthorization and what a lapse means for you.

What a policy covers

The standard contract for a home is the Standard Flood Insurance Policy (SFIP) Dwelling Form, published at 44 CFR Part 61, Appendix A(1). Condominium associations use the Residential Condominium Building Association Policy, and businesses and larger residential buildings use the General Property Form. The coverages in the Dwelling Form:

The limits for the policy types a homeowner is likely to hold, from FEMA's October 2025 Flood Insurance Manual:

increased cost of compliance (ICC) is paid in addition to your building limit, but the two together cannot exceed the $250,000 statutory maximum. It does not carry a separate deductible. Contents coverage is not included unless you choose it, and building and contents have separate deductibles.

What it does not cover

The SFIP pays only for "direct physical loss by or from flood." It does not pay for additional living expenses while the house cannot be occupied, loss of use, loss of rental income or business interruption. Hotel bills are on you.

The policy also excludes:

• Currency, money, securities, deeds and other valuable papers.
• Vehicles and watercraft.
• Landscaping, lawns and trees, and most outdoor structures such as fences, decks and patios outside the exterior walls, seawalls and docks.
• Swimming pools, hot tubs and their equipment.
• Septic systems, wells and other underground equipment.
• Earth movement, even when flood causes it: landslides, sinkholes and gradual erosion. Mudflow, as the policy defines it, is covered.
• Damage from water or mold that results from conditions within your control, including failing to dry and maintain the house after the water recedes.
• A $2,500 special limit on art, collectibles, jewelry, furs and business property.

Basements are a special case. The policy covers only a listed set of items in a basement, such as the furnace, water heater, sump pump, electrical panel and a washer and dryer, and not finished walls, flooring or most contents. The what flood insurance covers in a basement guide has the full list.

How claims are paid

Two settlement rules matter more than any other. For your building, the policy pays replacement cost if the home is your principal residence and your building coverage is at least 80% of its replacement cost or is the maximum available under the NFIP. If you fall below that, or the home is not your principal residence, you are paid actual cash value, which deducts depreciation. Personal property, carpeting, appliances and detached garages are paid at actual cash value regardless.

Deductibles for a home run from $1,000 up to $10,000, chosen when you buy. For building coverage over $100,000 the minimum is $1,250.

Claim timing is set by the policy. You must give prompt written notice and send a signed, sworn proof of loss within 60 days after the loss, and the policy says a loss is payable 60 days after the insurer receives the proof of loss and the parties agree. If your claim is denied in whole or in part, you must sue within one year of the written denial, and only in the United States District Court for the district where the property is. Both deadlines are in the policy itself, and a missed one can end the claim. The adjuster may help with the form, but filing it is your job. See how to file a flood insurance claim.

What it costs

Premiums are set property by property under Risk Rating 2.0, FEMA's pricing approach since October 2021. Location, foundation type, first-floor height, replacement cost, coverage limits and deductible all feed in. The total you pay is more than the risk premium. According to FloodSmart, the bill includes:

• The building and contents premiums, less any statutory discount.
• An ICC premium of 1.9% of the building and contents premiums, up to $75.
• A Reserve Fund assessment of 18% of the discounted premium.
• A Homeowner Flood Insurance Affordability Act surcharge of $25 for a primary residence or $250 for any other occupancy.
• A Federal Policy Fee of $47 for most policies.
• Possibly a Community Rating System discount of 5% to 45% in participating communities, or a mitigation discount if your machinery is elevated or the building has flood openings.

Most premiums cannot rise by more than 18% a year by statute, though the surcharges and fees sit outside that cap and coverage increases are exempt. Based on FEMA's September 30, 2026 policy data, total written premium and fees divided by policies in force comes to roughly $1,009 per policy, a national average that tells you little about any single house. The Risk Rating 2.0: how NFIP prices flood insurance now guide explains what moves your own number.

A coverage-gap example (hypothetical)

Say your house would cost $450,000 to rebuild and your contents are worth $90,000 at today's prices. The most the NFIP will insure the building for is $250,000. Because that is the maximum available, you still qualify for replacement-cost settlement on the building, but the cap is the limit. A flood that destroys the house pays $250,000 minus the deductible, leaving a gap of about $200,000 plus the deductible to rebuild. Contents are paid at actual cash value up to $100,000, so a $90,000 replacement-cost contents loss may pay out far less once depreciation is deducted. Coverage above the NFIP cap comes from excess flood insurance or a private policy, discussed in Private flood insurance vs the NFIP.

Getting a quote and starting coverage

1. Confirm your community participates, and note your flood zone from the FEMA map (see Flood zones and FEMA flood maps explained).
2. Gather the building details an agent will ask for: year built, number of floors, foundation type, first-floor height, and any flood openings or elevated machinery.
3. Choose limits against replacement cost, not the mortgage balance, and decide whether to carry contents coverage.
4. Pick building and contents deductibles. A higher deductible lowers the premium but raises what you pay out of pocket.
5. Apply early. Coverage generally starts 30 days after you apply and pay, except at a loan closing; see the 30-day flood insurance waiting period.
6. Check your declarations page when it arrives and keep a copy where you can reach it after a flood.

If you sell, the policy can be assigned in writing to the buyer, which FEMA says can pass along an existing discount. The policy renews with no lapse if the renewal premium reaches the insurer within 30 days after the expiration date; after that you need a new application and a new waiting period.

Key takeaways

• The NFIP is a federal program sold through WYO insurers and NFIP Direct at the same rates; a one-to-four family home can carry up to $250,000 on the building and $100,000 on contents.
• It pays for direct flood damage only: no living expenses, no loss of use, limited basement coverage and many exclusions for outdoor property and valuables.
• Buildings are paid at replacement cost only for a principal residence insured to at least 80% of replacement cost or the NFIP maximum; contents are paid at actual cash value.
• Proof of loss is due within 60 days of the loss, and a lawsuit over a denial must be filed in federal court within one year of the written denial.
• If rebuilding costs more than $250,000, the gap is yours unless you add excess or private flood coverage.