Percentage Deductible
A deductible calculated as a percentage of the dwelling coverage rather than a fixed dollar amount. Commonly applied to wind, hail, hurricane, and named-storm perils in storm-prone regions.
A percentage deductible is calculated as a percentage of the dwelling coverage rather than a fixed dollar amount. It is most common on wind, hail, and named-storm perils in storm-prone states.
How the Math Works
On a $500,000 dwelling with a 2 percent deductible, the deductible on a covered wind or hail loss is $10,000. The calculation runs against coverage A (dwelling), not against the loss itself. The full $10,000 applies to every covered loss until policy limits are reached, no matter how large or small the loss is.
Where Percentage Deductibles Apply
Most often: wind, hail, hurricane, named storm, and sometimes earthquake perils in active regions. Standard perils like fire and theft usually keep a flat deductible. That means a single policy can have multiple deductibles at the same time, each tied to a specific cause of loss. The declarations page lists each one.
Why This Matters for Restoration Work
A homeowner who thinks they have a $1,000 deductible might actually face a $10,000 percentage deductible on their hail-damaged roof. Contractors who discuss net payout with the homeowner before confirming which deductible applies to the peril risk setting expectations wrong. Always verify on the declarations page, not in conversation, and walk the homeowner through the math before writing the estimate.
Frequently asked questions
It is a percentage of the coverage A (dwelling) limit on the policy. On a $500,000 dwelling with a 2 percent deductible, the deductible is $10,000. The calculation is always against the coverage limit, not against the loss amount.
Percentage deductibles scale the policyholder's share of risk with the property value. High-value homes face larger catastrophic exposure, so carriers pair higher deductibles with those properties. Flat deductibles do not scale and become disproportionately small relative to potential losses on large homes.
Some carriers offer buy-down endorsements that convert a percentage deductible to a flat dollar amount, typically for additional premium. The availability varies by carrier and state. Ask your agent whether a buy-down is available if you prefer predictable out-of-pocket costs.
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