Flood insurance in Texas is a separate policy from homeowners insurance, and your lender will require it if any part of the home sits in a FEMA Special Flood Hazard Area (any zone starting with A or V). Outside those zones it's usually optional, but the Texas Department of Insurance (TDI) notes that most home policies don't cover flooding and that more than half of the homes Hurricane Harvey flooded were outside designated flood zones. For buyers, the key facts are the flood zone, the seller's flood disclosure, and timing: most flood policies start 30 days after purchase, but there's no wait when you buy the policy as part of getting a mortgage.
I'm Taylor Ring, a Mortgage Loan Officer with Fairway Independent Mortgage Corporation (The Wood Group) in Belton. I'm not an insurance agent and I don't quote flood premiums. I do see the flood determination come back on every loan, and I'd rather you know the answer before you're under contract in Temple, Belton, or Waco. Everything here comes from FEMA, FloodSmart, Fannie Mae, HUD, TDI, and the Texas Property Code, read October 25, 2026.
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FEMA Flood Zones in Plain English
FEMA's flood maps rate each area by its chance of flooding. FEMA says any place with a 1% or higher annual chance of flooding is high risk, and those areas have at least a one-in-four chance of flooding during a 30-year mortgage.
| FEMA zone | Risk level (FEMA) | What it means for a mortgage |
|---|---|---|
| A, AE, AH, AO, AR, A99, A1-A30 | High risk: Special Flood Hazard Area (1% annual chance, the "100-year flood") | Flood insurance required on federally backed loans |
| V, VE, V1-V30 | High risk coastal SFHA | Flood insurance required on federally backed loans |
| B or X (shaded) | Moderate risk: between the 1% and 0.2% (500-year) flood | Usually optional; your lender may still require it |
| C or X (unshaded) | Minimal risk | Usually optional |
| D | Undetermined risk | Possible but not yet studied |
Sources: FEMA's flood zone glossary and FloodSmart's flood zone page. FEMA also says there's no such thing as a "no-risk zone."
How to Look Up a Flood Zone
- FEMA Flood Map Service Center (MSC): FEMA calls it the official online location for all flood hazard mapping products, including your community's flood map. Search by address.
- The seller's disclosure: the Texas form asks whether the property is in a 100-year or 500-year floodplain (see below).
- Your lender's flood determination: this is the one that controls the loan. HUD requires FHA lenders to get the determination independently of the appraiser, and Fannie Mae requires the FEMA Standard Flood Hazard Determination form.
When Is Flood Insurance Required?
FEMA says homes in high-risk areas with mortgages from government-backed lenders must have flood insurance. The seller's disclosure form required by the Texas Property Code says the same thing: homes in high-risk flood zones with mortgages from federally regulated or insured lenders must have flood insurance.
Conventional Loans (Fannie Mae Selling Guide B7-3-06)
- Flood insurance is required if any part of the principal structure is in an SFHA. Fannie Mae says all zones beginning with A or V are SFHAs.
- A residential detached structure in the SFHA that secures the loan needs coverage too. A non-residential detached structure, like a barn or shed, does not.
- If the home is in an SFHA in a community that doesn't participate in the NFIP, the loan isn't eligible for sale to Fannie Mae.
- Minimum coverage is the lesser of 100% of the replacement cost of the improvements, the NFIP maximum, or the loan balance.
- The deductible can't exceed the maximum NFIP deductible for that property type. A declarations page is acceptable proof.
FHA Loans (HUD Handbook 4000.1)
- Flood insurance must be kept for the life of the mortgage at no less than the lowest of 100% of the insurable replacement cost, the NFIP maximum, or the outstanding principal.
- A home in an SFHA isn't eligible if the community isn't in the NFIP.
- New construction in an SFHA needs a LOMA or LOMR removing the property, or an Elevation Certificate showing the lowest floor is above the 100-year flood elevation, plus flood insurance.
Your Lender Can Ask for More
FEMA says that even after a map change removes the federal requirement, the mortgage lender keeps the right to require flood insurance wherever the home sits. Lenders may set their own rules for moderate-risk zones too.
What an NFIP Flood Policy Covers
The National Flood Insurance Program (NFIP) is run by FEMA and sold through more than 47 insurance companies and local agents in about 22,600 participating communities. According to FloodSmart:
| Item | NFIP limit for a home |
|---|---|
| Building coverage | Up to $250,000 |
| Contents coverage | Up to $100,000 |
| Policy term | One year |
| Grace period after expiration | 30 days, if you renew and pay in full during it |
Usually not covered: property outside the building (landscaping, septic systems, decks, patios, fences, and pools), extra living expenses while you're displaced, vehicles, and most basement contents. Private flood insurance is another option, and both Fannie Mae and HUD accept qualifying private policies.
The 30-Day Waiting Period and the Mortgage Exception
FloodSmart says flood coverage starts 30 days after purchase, with four exceptions:
- No wait if you buy flood insurance while making, increasing, extending, or renewing a mortgage
- No wait for coverage changes made at renewal
- A one-day wait if your property was newly mapped into a high-risk zone and you buy within 12 months of the map update
- A one-day wait for flooding caused or made worse by a wildfire on federal land, if you buy within 60 days of containment
The loan exception is why a required flood policy can be bound for closing day. But if flood insurance is optional on your loan, buy it before you need it. TDI warns not to wait for a storm to decide.
Texas Seller Flood Disclosures
Texas Property Code Section 5.008 requires most sellers of a single-dwelling home to give the buyer a written Seller's Disclosure Notice. Its flood questions ask whether the seller is aware of:
- Present flood insurance coverage
- Previous flooding from a reservoir failure, breach, or controlled or emergency release
- Previous water penetration into a structure from a natural flood event
- Whether the property is wholly or partly in a 100-year floodplain (Zone A, V, A99, AE, AO, AH, VE, or AR), a 500-year floodplain (Zone X shaded), a floodway, a flood pool, or a reservoir
It also asks two yes-or-no questions: has the seller ever filed a flood claim with any insurer, including the NFIP, and has the seller ever received FEMA or SBA assistance for flood damage?
Timing and exceptions:
- The notice must be delivered on or before the effective date of the contract. If it isn't, the buyer may terminate for any reason within seven days after receiving it (Sec. 5.008(f)).
- Some transfers are exempt, including foreclosure sales and a new home that has never been occupied (Sec. 5.008(e)). On new construction, ask the builder about the flood zone directly.
Lake buyers: TREC's resale contract also includes a notice for property next to certain water impoundments of 5,000 acre-feet or more, warning that the water level can change.
A Flood Check for Central Texas Buyers
- Before you write an offer: look the address up on the FEMA Map Service Center.
- When you get the seller's disclosure: read the flood section and the claim and assistance answers.
- During the option period: get a flood quote along with your homeowners quote, and ask your home inspector about drainage and past water entry.
- After the lender's flood determination: if the home is in an A or V zone, your agent binds coverage before closing.
- At closing: the TREC resale contract makes required flood premiums a buyer expense. Required flood premiums are often paid through escrow with homeowners insurance (HUD's FHA escrow rule lists flood insurance when it's required), so plan for them in your budget.
If You Think the Map Is Wrong
FEMA's Letter of Map Amendment (LOMA) can remove a property or structure from the SFHA if it's actually on higher ground. It usually needs an Elevation Certificate from a licensed land surveyor or registered professional engineer. FEMA charges no fee for a LOMA review and normally issues a decision in 60 days once it has everything. A LOMA isn't a closing-week fix, and FEMA reminds owners that more than 25% of flood claims come from outside the SFHA.
Frequently Asked Questions
Is flood insurance required in Texas?
Texas law does not require every homeowner to buy flood insurance, but if your home is in a FEMA Special Flood Hazard Area and you have a mortgage from a federally regulated or insured lender, flood insurance is required. Your lender may also require it in other zones.
What flood zones require flood insurance?
All FEMA zones that begin with A or V are Special Flood Hazard Areas, including A, AE, AH, AO, AR, A99, V, and VE. Fannie Mae requires flood insurance on conventional loans when any part of the principal structure is in one of those zones.
How long is the waiting period for flood insurance?
An NFIP flood policy usually takes effect 30 days after purchase. There is no waiting period if you buy the policy while making, increasing, extending, or renewing a mortgage, and a one-day wait applies in some newly mapped high-risk areas.
How much flood coverage can I get through the NFIP?
The NFIP covers a home's building for up to 250,000 dollars and its contents for up to 100,000 dollars. A conventional loan requires at least the lesser of 100 percent of replacement cost, the NFIP maximum, or the loan balance.
Does a Texas seller have to disclose flooding?
Yes, in most resale transactions. Texas Property Code Section 5.008 requires a seller's disclosure that asks about flood insurance, previous flooding, floodplain location, flood claims, and FEMA or SBA flood assistance. New homes never occupied and some other transfers are exempt.
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Related Guides
- Home Inspection in Texas
- Texas Option Period and Option Fee
- What Is Escrow in a Mortgage?
- Closing Costs in Texas
- How Much House Can I Afford in Texas?
- FHA Loan Requirements in Texas
Sources
- FEMA: Flood zones glossary, Flood maps and the Map Service Center, Flood insurance, and LOMA and LOMR-F
- FloodSmart (NFIP): Buy a policy and What is my flood zone?
- Fannie Mae Selling Guide B7-3-06, Flood Insurance Requirements for All Property Types
- HUD Handbook 4000.1 (flood insurance and flood zone requirements)
- Texas Department of Insurance Home insurance guide
- Texas Property Code Section 5.008 and TREC's Seller's Disclosure Notice and Resale Contract 20-19
Taylor Ring, NMLS #2809683 | Fairway Independent Mortgage Corporation, NMLS #2289 | The Wood Group of Fairway, 127 Lake Rd Ste 300, Belton, TX 76513 | Equal Housing Opportunity. This is not a commitment to lend. All loans are subject to credit and property approval and program guidelines, and approval, rates, and program availability are not guaranteed. Taylor Ring is a mortgage loan officer, not a licensed insurance agent; this article does not quote, sell, or recommend flood insurance policies or premiums. It is general information, not legal or insurance advice, and is not affiliated with or endorsed by FEMA, the NFIP, Fannie Mae, HUD, TDI, TREC, or any government agency. Flood zones and program limits can change; confirm details for a specific property with FEMA, your lender, and a licensed insurance agent.