What does federal law require?
Under section 102(b) of the Flood Disaster Protection Act of 1973 (42 U.S.C. 4012a), regulated lenders may not make, increase, extend or renew a loan secured by a building in a Special Flood Hazard Area unless the building is covered by flood insurance for the term of the loan. Federal agency lenders, and loans bought by Fannie Mae and Freddie Mac, follow the same rule.
The required amount is at least the outstanding principal balance or the maximum NFIP coverage available for that property type, whichever is less. As of 2026, NFIP building coverage for a home tops out at $250,000, with contents coverage up to $100,000 bought separately.[1][2][4]
What will the lender do before and after closing?
Federal law sets out what lenders must tell you and what they must do if coverage falls short.
- Before you sign: if the building is in a Special Flood Hazard Area, the lender must give you written notice a reasonable time in advance, describing the flood hazard and the insurance requirement.
- Private flood insurance: lenders must accept a private policy that meets the federal definition, including coverage at least as broad as the standard NFIP policy.
- If coverage lapses or falls short: the lender or servicer must notify you, and if you don't buy enough coverage within 45 days, it must buy coverage for you and may charge you the premiums and fees.[2][1]
Can I be required to carry flood insurance outside a high-risk zone?
Yes. FEMA notes that some banks require flood insurance even when a home is not in a high-risk area, so ask your lender about its terms early. Separately, if a property received federal disaster assistance in the past, flood insurance is required to qualify for future aid, and that requirement stays with the property when it is sold.
Timing matters too. NFIP policies normally take effect 30 days after purchase, but there is no waiting period when the policy is bought in connection with making, increasing, extending or renewing a mortgage. For loan-specific questions, ask a licensed lender; for coverage choices, ask a licensed insurance agent.[3][4]
Key takeaways
- Flood insurance is federally required for loans from regulated or federally backed lenders on buildings in A and V zones in NFIP communities.
- The minimum is the lesser of the loan balance or the NFIP maximum for the building type, which is $250,000 for a home as of 2026.
- Lenders must accept private flood policies that meet the federal standard.
- If required coverage lapses, the lender must place coverage after 45 days and can charge you for it.
- Some lenders require flood insurance outside high-risk zones, so ask early.
Sources
- [1]Cornell Law School LII — 42 U.S. Code § 4012a, Flood insurance purchase and compliance requirements and escrow accounts
- [2]Cornell Law School LII — 42 U.S. Code § 4104a, Notice requirements
- [3]FEMA FloodSmart — Eligibility
- [4]FEMA FloodSmart — Buy a Flood Insurance Policy
Reviewed October 11, 2026. General real-estate information for Florida, not legal, tax, lending or insurance advice. Laws, rates and deadlines change — confirm property-specific facts with the agency cited, a Florida real-estate attorney, CPA or licensed insurance agent.