If your flood insurance went up again this year and nothing about your house changed, the reason is a pricing system FEMA introduced in October 2021 called Risk Rating 2.0.
The old system priced you by the zone on a map. The new one prices your building: how far it sits from water, how high the first floor is, what it would cost to rebuild, and what kinds of flooding can reach it.
Why the increase arrives in slices
FEMA calculated a full-risk price for every property on day one, but the law does not allow that price to be applied at once. Most policyholders move toward it at a maximum of 18% a year.
So the question is not whether your premium rises. It is how far you still are from your full-risk figure, and how many renewals it takes to get there.
What the data shows across Florida
Median annual cost climbed from $798 in 2023 to $1,096 in 2026 across single-family policies. That is the aggregate shape of the glide path, measured rather than projected.
What no longer works
Advice written before 2021 often recommends keeping continuous coverage to lock in a grandfathered rate when flood maps are redrawn. Grandfathering was a feature of zone-based pricing. Under a system that prices the building rather than the map, redrawing the map does not change your rate in the way it once did.
You will still find that advice on insurance sites today. It is worth knowing why it is out of date before acting on it.
Official source figures, as of 14 August 2026. Calculated from National Flood Insurance Program policy records published by FEMA. These are premiums other policyholders paid, not a quote or an offer of coverage.