Why Flood Insurance Matters for Your Mortgage
Fannie Mae requires flood insurance because flooding causes billions in property damage each year. The government created the National Flood Insurance Program (NFIP) to make coverage available in high-risk areas where private insurers won't write policies.
Your lender must determine if your property sits in a Special Flood Hazard Area before closing. This isn't optional — it's federal law. If the property is in a flood zone, you need insurance. If the community doesn't participate in NFIP, Fannie Mae won't buy your loan at all.
How Lenders Determine Your Flood Risk
Your lender orders a flood zone determination using FEMA's Standard Flood Hazard Determination Form. This form shows whether your property sits in a designated flood zone based on FEMA's official maps.
The determination must be completed within 120 days of your closing date. Some lenders use "life of loan" determinations that monitor your property continuously. These can be older than 120 days as long as the monitoring service guarantees accuracy.
Say your property shows up in Zone AE on the flood map. The "A" designation means you're in a Special Flood Hazard Area and need flood insurance. Zones that start with "V" are even higher risk — they're coastal areas subject to wave action.
What Flood Insurance You Need
The coverage amount depends on three factors: your loan amount, NFIP maximum limits, and your property's replacement cost. You need coverage equal to whichever is lowest.
For a single-family home with a $300,000 loan, you'd need $300,000 in coverage if that's less than the replacement cost and NFIP limits. Current NFIP maximums are $250,000 for building coverage and $100,000 for contents on residential properties.
If your community participates in NFIP's Emergency Program, coverage limits are lower. Once the community moves to the Regular Program, you must increase your coverage to meet the higher requirements.
Your deductible cannot exceed NFIP maximums. For 2024, standard deductibles range from $1,000 to $10,000 depending on your coverage amount and community participation level.
Different Rules for Different Property Types
Single-family homes follow the standard rules above. You can skip flood insurance on detached structures like sheds or garages that aren't used as residences.
Condominiums get complicated. If you're buying in a small 2-4 unit condo building, you follow single-family rules. In larger buildings, the condo association must carry building coverage for 80% of replacement cost or NFIP maximums, whichever is lower.
You might need supplemental coverage if the association's policy doesn't allocate enough coverage to your unit. Your lender will calculate whether the association coverage meets the loan-to-coverage requirements.
Cooperative buildings must carry 100% replacement cost coverage or NFIP maximums on both the building and contents owned by the corporation.
Required Documentation
Your lender needs the completed FEMA Standard Flood Hazard Determination Form in your loan file. This form must show the determination date, your loan number, and the flood zone designation.
If flood insurance is required, you need a valid policy before closing. The policy must name your lender as the mortgagee and show coverage amounts that meet Fannie Mae requirements.
Keep copies of any FEMA letters if you appeal the flood zone determination. Letters of Map Amendment (LOMA), Letters of Map Revision (LOMR), or Letters of Determination Review (LODR) can remove the flood insurance requirement.
When You Can Appeal or Remove Coverage
You can challenge FEMA's flood zone determination if you believe it's wrong. The most common appeal is a Letter of Map Amendment, which removes your specific property from the flood zone based on elevation surveys.
A surveyor measures your property's elevation relative to the base flood elevation. If your lowest floor sits above the flood level, FEMA may issue a LOMA removing the flood insurance requirement.
You must maintain flood insurance until FEMA issues the letter. Once approved, you can request premium refunds from your insurance company for the current policy period.
Common Problems That Delay Closing
The biggest issue is discovering flood zone requirements late in the process. Flood insurance policies have a 30-day waiting period before taking effect, so you need to apply early.
Some buyers assume they don't need flood insurance because previous owners didn't have it. Flood maps change over time, and FEMA regularly updates designations. Your property might have been added to a flood zone since the last sale.
Private flood insurance can sometimes provide better coverage or rates than NFIP policies. Your lender must verify that private policies meet Fannie Mae's equivalency requirements under [[B3-7.1-01]].
Communities occasionally drop out of NFIP participation, making properties ineligible for Fannie Mae financing. This is rare but can kill deals at the last minute.
Why These Rules Exist
Fannie Mae's flood insurance requirements protect both you and the investor who ultimately owns your mortgage. Flooding can destroy a home's value overnight, leaving you with a mortgage balance that exceeds the property's worth.
The 120-day determination window ensures flood zone information is current. FEMA updates maps regularly as new flood studies are completed or communities implement flood control measures.
Coverage requirements tie to loan amounts because Fannie Mae needs to protect its investment. If your home floods and you don't have adequate insurance, you might walk away from the mortgage, leaving Fannie Mae with an underwater loan.
References
For the official guidelines, see 4703.3: Flood insurance in the Fannie Mae Selling Guide.
Mortgage guidelines change. Stay current.
Fannie Mae and Freddie Mac update their rules several times a year. Get notified when changes affect your mortgage eligibility, required documents, or loan terms.
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Original Freddie Mac Guideline Text
(a)
Determining if a property requires flood insurance
A flood zone determination (FZD) must be made for each property securing a Mortgage sold to Freddie Mac.
An FZD must be documented by a completed FEMA Standard Flood Hazard Determination Form, FEMA Form 086-0-032 (
Exhibit 13, Standard Flood Hazard Determination Form [SFHDF]
) in accordance with federal law. The SFHDF may be used in a printed, computerized or electronic manner and must be retained for the life of the Mortgage in either hard copy or electronic format. Any alternative electronic format must contain all mandatory fields indicated on the SFHDF.
The date in the “Date of Determination” field on the SFHDF must be a date that is no more than 120 days before the Note Date of the Mortgage, or, if applicable, the Note Date of the refinance Mortgage. However, the “Date of Determination” field on the SFHDF may be a date that is more than 120 days before the Note Date of the Mortgage or, if applicable, the Note Date of the refinance Mortgage, if the Seller uses a “life of loan” FZD where the third party providing the FZD provides a “life of loan” certificate assuring that the Mortgage is monitored for compliance.
The loan number or other identifying information in the "Loan Identifier" field on the SFHDF must be the loan number or other identifying information for the Mortgage or, if applicable, the refinance Mortgage.
The Seller/Servicer warrants that any FZD made by a party other than the Seller/Servicer is guaranteed by the FZD maker to be accurate, in accordance with federal law. The Seller/Servicer, however, remains responsible to Freddie Mac for the accuracy of any FZD made by the Seller/Servicer or any party other than the Seller/Servicer.
If the SFHDF identifies the insurable improvements on the Mortgaged Premises as located in an area that has been identified as a Special Flood Hazard Area (SFHA) containing the letter “A” or “V” within its designated zone on a flood map (Flood Hazard Boundary Map or Flood Insurance Rate Map) of FEMA, the Seller/Servicer must ensure that flood insurance is obtained and maintained on such improvements for the term of the Mortgage.
The Seller/Servicer may waive or discontinue the flood insurance requirement if:
The Borrower and the Seller/Servicer have obtained, following a joint request to FEMA as provided under federal law, a Letter of Determination Review (LODR) concluding that the insurable improvements are not in the SFHA, or
The Borrower has provided the Seller/Servicer with a Letter of Map Amendment (LOMA) from FEMA excluding the insurable improvements or the entire property from the SFHA, or
The Borrower has provided the Seller/Servicer with a Letter of Map Revision (LOMR) from FEMA removing the community’s SFHA designation
The Borrower must maintain flood insurance on the insurable improvements until FEMA issues a LOMA, LOMR or LODR. Upon issuance of a LOMA, LOMR or LODR, the Borrower may request from FEMA a refund of paid flood insurance premiums through the insurance agent servicing the flood insurance policy. A copy of the LOMA, LOMR or LODR, as applicable, must be maintained in the Mortgage file in accordance with
,
3301
and
3302
.
If the insurable improvements on the Mortgaged Premises are located in an SFHA but the community does not participate in the National Flood Insurance Program (NFIP) (“nonparticipating community”), the Mortgage is not eligible for sale to Freddie Mac.
If the insurable improvements on the Mortgaged Premises are located in an area that has not been mapped by FEMA and the Seller/Servicer is not aware of any flood risks to which the improvements are exposed, the Mortgage is eligible for sale to Freddie Mac without the benefit of flood insurance. If the area has not been mapped by FEMA but the Seller/Servicer is aware that the insurable improvements are exposed to flood risks, the Mortgage is not eligible for sale to Freddie Mac without flood insurance on the improvements.
(b)
Acceptable flood insurance policies
The flood insurance policy may be one of the following:
A standard policy issued by the NFIP, or
A policy issued by a private insurer that is qualified under
Section 4703.1
, with at least equivalent terms and conditions to the standard NFIP policy for the types of improvements insured, including coverage, deductibles and exclusions and conditions offered
(c)
(i)
1- to 4-unit properties
If the community where the Mortgaged Premises are located participates in the Emergency Program of the NFIP, the flood insurance coverage on the insurable improvements must at least equal the lowest of the following:
The UPB of the Mortgage
The maximum amount of coverage currently sold under the Emergency Program of the NFIP for the type of improvements insured
The replacement cost of the insurable improvements
The Seller/Servicer must ensure that the Borrower increases flood insurance coverage on the insurable improvements when the community moves into the Regular Program of the NFIP as described below.
If the community where the Mortgaged Premises are located participates in the Regular Program of the NFIP, the flood insurance coverage on the insurable improvements must at least equal the lowest of the following:
The UPB of the Mortgage
The maximum amount of coverage currently sold under the Regular Program of the NFIP for the type of improvements insured
The replacement cost of the insurable improvements
The deductible may not exceed the maximum deductible amount currently allowed under the NFIP for the type of improvements insured.
For 1- to 4-unit properties, the Seller/Servicer may waive the flood insurance requirements for structures on the Mortgaged Premises that are detached from the primary residential structure and do not serve as a residence.
(ii)
PUD or ground lease community units
Flood insurance requirements for 1- to 4-unit properties apply to similar residential properties within a PUD or ground lease community.
(iii)
Condominium Units
Flood insurance requirements for 1- to 4-unit properties apply to similar residential properties in a 2- to 4-Unit Condominium Project or Detached Condominium Project.
If the Condominium Unit securing a Mortgage sold to or serviced for Freddie Mac is in a building in a Condominium Project other than a 2- to 4-Unit Condominium Project or Detached Condominium Project and all or part of the building is in an SFHA, the following flood insurance coverage, as applicable, is required:
Condominium homeowners association’s coverage
The condominium homeowners association must maintain building coverage on the building for the lower of:
80% of the building’s replacement cost or
The maximum coverage amount available from NFIP per unit
The condominium owners association must maintain contents coverage on the building for the lower of (i) the actual cash value of the contents in the building that are owned in common by the association members or (ii) the maximum amount of contents coverage sold by the NFIP for a condominium building.
The deductible of the condominium owners association’s coverage may not exceed the maximum deductible amount currently allowed under the NFIP for condominium association building coverage. The deductible for association building contents may not exceed the maximum deductible amount currently allowed under the NFIP for association building contents.
Unit owner’s coverage
To the extent the condominium owners association’s building coverage meets the minimum requirements above, but the Condominium Unit allocation does not meet the 1- to 4-unit coverage requirement, the Borrower must maintain supplemental coverage on the Condominium Unit. The coverage must be at least equal to the difference between the condominium associations’ building coverage allocated to that Condominium Unit and the amount required on a 1- to 4-unit property.
The deductible may not exceed the maximum deductible allowed for a 1- to 4-unit property.
(iv)
Cooperative Corporations
The Cooperative Corporation must maintain flood insurance on each building that is located in an SFHA.
The building coverage must be the lower of (i) 100% of the building's replacement cost, or (ii) the maximum amount of building coverage sold by the NFIP.
The contents coverage must be the lower of (i) 100% of the insurable replacement cost of all contents owned by the Cooperative Corporation, or (ii) the maximum amount of contents coverage sold by the NFIP.
The deductible of the Cooperative Corporation coverage may not exceed the maximum deductible amount currently allowed under NFIP for building coverage. The deductible for Cooperative Corporation building contents may not exceed the maximum deductible amount currently allowed under the NFIP for contents coverage.
A blanket policy of flood insurance covering more than one building or structure in the Cooperative Project is acceptable if each building or structure covered by the blanket policy is insured for at least the individual building and contents limits stated above.
