Wind and hail deductibles: the second one on your policy

Ask a homeowner what their deductible is and most can tell you. It is a round number, it has been the same for years, and it is the figure they mentally set aside for a claim.

For a kitchen fire, that number is correct. For the hailstorm that takes the roof off, it very often is not — because a large share of policies carry a second deductible that applies only to wind, hail or named storms, and it is usually calculated in a completely different way.

The first time most people learn this is while reading a claim settlement.

Two deductibles, one policy

The NAIC is explicit that this is a distinct thing rather than a variation: a named storm deductible “is separate and different from the normal deductible in a homeowners policy,” and it is “usually a percentage of the home’s value, making a policyholder responsible for a larger portion of a loss compared to their normal homeowners deductible.”

Source: National Association of Insurance Commissioners — What are named storm deductibles? · accessed 2026-08-04

Two numbers, then, doing different jobs. The standard deductible handles everything ordinary. The storm deductible handles the peril most likely to produce a large claim in much of the country — and it is the larger of the two by design.

How a percentage deductible is calculated

The III explains the mechanic: “percentage deductibles are based on the home’s insured value,” and they “typically vary from 1 percent of a home’s insured value to 5 percent,” with coastal areas of high wind risk sometimes higher.

Source: Insurance Information Institute — Background on: hurricane and windstorm deductibles · accessed 2026-08-04

The critical word is insured value, not damage. A percentage deductible is a share of the dwelling limit — the whole rebuilding cost of the house — not a share of the claim. So it does not scale down for a small loss. On a modest claim it can exceed the damage entirely, which means the policy pays nothing and the claim was never worth filing.

Hurricane, windstorm, or named storm

The three terms are not interchangeable, and which one your policy uses determines how often the larger deductible applies.

The III draws the distinction: hurricane deductibles “apply to damage solely from hurricanes,” while “windstorm or wind/hail deductibles apply to any kind of wind damage.”

That is a wide gap. A wind/hail deductible can be triggered by an ordinary thunderstorm on an ordinary afternoon a thousand miles from any coast. A hurricane deductible only engages for a hurricane.

A named storm deductible sits between them. The NAIC describes the trigger: for the loss to be covered, it must be caused by a named storm — a hurricane, typhoon, tropical storm or tropical cyclone declared as such by the National Weather Service or the National Hurricane Center.

What sets the trigger, and when it lifts

Triggers are not folklore; they are written into the policy, and the III notes they vary. Activation “might occur when the National Weather Service names a tropical storm or declares a hurricane watch,” and the period can continue “for 24 to 72 hours after conditions diminish.”

That trailing window matters more than it sounds. Damage occurring after a storm has technically passed can still fall inside the deductible period, depending on how the policy defines the end of it.

On who decides: “Insurance companies determine the level of the hurricane or windstorm or wind/hail deductible and where it should apply, except in Florida where state law dictates these variables.”

Per event, per season, or per year

This is the question almost nobody asks and the one with the largest financial consequence in a bad year.

The NAIC recommends reading your policy to establish whether the deductible applies per event, per season, or per calendar year, since multiple storms may trigger multiple deductible payments during a single coverage period.

In an active season, a per-event deductible applied twice is a materially different outcome from one that applies once. Two storms, two large deductibles, on a household that budgeted for one.

Can you avoid it

Sometimes. The III notes that “in some states, policyholders may have the option of paying a higher premium in return for a traditional dollar deductible,” though in high-risk coastal areas percentage deductibles are often mandatory.

Where the choice exists it is a real trade: a higher premium every year against a smaller bill in the year something happens. Which is right depends on whether you could comfortably fund the percentage deductible from savings — a question about your finances, not about the weather.

What to do

Find every deductible on your declarations page — there may be two, and occasionally three. For each one, establish whether it is a flat amount or a percentage, and of what.

If any is a percentage, do the arithmetic once, now, on paper. Multiply it by your dwelling limit and look at the result. That is the number you would need available after a storm, and it is much better discovered at the kitchen table than in a settlement letter.

Then ask three questions: what triggers it, when does the trigger period end, and does it apply per event or per season.

If the answer is uncomfortable, ask whether a flat-dollar option is available where you live and what it costs. If it is not available, or you decline it, that is a legitimate decision — and one worth recording in writing alongside what was recommended.