Ask most homeowners what their deductible is and they will give you a number: $1,000, maybe $2,500. They are reading the right line on the right page, and in a wind-exposed state they may still be badly wrong about what a storm would cost them.
Because a second deductible is probably sitting underneath it, expressed not in dollars but as a percentage of the house.
The arithmetic that catches people
A named storm deductible is usually a percentage of the home's value, which makes the policyholder responsible for a considerably larger share of a loss than their normal homeowners deductible would.
The NAIC's own illustration makes the scale plain: a homeowners policy with a 5% named storm deductible on a $300,000 house leaves the policyholder responsible for $15,000.
Set that beside a $1,000 flat deductible on the same policy. Same house, same insurer, same paperwork — and a fifteen-fold difference in what the household has to find before the insurer pays anything, depending entirely on what caused the damage.
Percentages can range from 1% to 10% of the insured value. At the top of that range, on the same $300,000 home, the figure is $30,000.
It is the insured value, not the market value
A detail worth getting right, because people reach for the wrong number.
The percentage applies to the insured value — your dwelling coverage limit — not what the house would fetch if you sold it. Those two figures are routinely different, and in either direction: a home in an expensive market may carry a rebuilding limit well below its sale price, while a home in a cheaper market may be insured for more than it would sell for.
The number that matters is on your declarations page under dwelling coverage. Take the percentage of that.
What actually triggers it
This is the part with the most variation between policies, and the part worth reading in your own.
Whether a hurricane, named storm or windstorm deductible applies to a claim depends on the trigger the insurance company selected, and these deductibles apply only where parameters spelled out in the insurance contract are met. In many states the triggers an insurer may use are prescribed or limited by state law.
For a named storm deductible, the storm has to have been named: the deductible applies to a weather event declared a typhoon, tropical storm or tropical cyclone by the U.S. National Weather Service or the U.S. National Hurricane Center, where a name or number has been applied, and where the loss was caused by that event.
That naming requirement is doing real work. A severe but unnamed windstorm does not trigger it. Which sounds like good news until you meet the other kind.
Wind and hail deductibles are the broader trap
Some policies carry a windstorm or wind and hail deductible, which usually applies to any kind of damage from a wind or hail event — named or not.
That is a far wider net. A hurricane deductible might engage once in a decade. A wind and hail deductible can engage in an ordinary spring thunderstorm, and it is frequently the one attached to policies in hail-exposed inland states that never see a tropical system.
So the question is not only "do I have a hurricane deductible?" It is "which storm deductible do I have, and what sets it off?"
Why this is spreading
Percentage deductibles are one of the mechanisms insurers use to keep writing policies in places where the losses have become difficult to price. They shift a defined share of catastrophe risk back to the homeowner, which keeps the premium payable and the policy available.
That is the same pressure driving the increases covered in why homeowners premiums keep rising — where the GAO found premiums in high wind-risk areas running roughly 58% above comparable medium-risk areas. A percentage deductible is the less visible half of that adjustment: the premium rises and the amount you carry yourself rises with it.
It also compounds with the other thing worth checking on a wind claim, which is whether your roof settles on replacement cost or actual cash value. A depreciated roof settlement, minus a percentage deductible, is how a fully insured household ends up paying for most of its own roof.
And if the same storm drove water in as well as tearing shingles off, that is a second policy entirely, with its own deductibles.
What to actually check
- Find every deductible on the declarations page. There is usually more than one.
- For any percentage, do the multiplication against your dwelling limit. Write the dollar figure down.
- Read the trigger. Named storm, windstorm, or wind and hail — they engage at very different frequencies.
- Ask whether you could produce that sum, in the week after a storm, while also paying for somewhere to stay.
- Ask your state insurance department what is permitted where you live. Many states limit what insurers may impose.
This article explains how percentage deductibles are structured. It is not insurance or financial advice. Triggers, percentages and the rules governing them vary considerably by insurer and by state, and only your own policy governs your claim. Read it, and take questions to your insurer or your state insurance department.
Sources
- NAIC — Hurricane deductibles (opens in a new tab)
- NAIC — What are named storm deductibles? (opens in a new tab)
- NAIC — Hurricane deductibles, CIPR topic overview (opens in a new tab)
- Texas Department of Insurance — What is windstorm insurance? (opens in a new tab)
- New York Department of Financial Services — Windstorm deductibles (opens in a new tab)
This article is general information for a United States audience. It is not insurance, legal or financial advice. Deductible structures, triggers and the percentages insurers may apply vary by state and by policy, and several states regulate them directly. Only your own policy document governs a claim. Confirm details with your insurer or your state insurance department before relying on any of this. Last reviewed 15 September 2026.
