If your homeowners insurance policy shows a deductible such as 1%, 2%, 3% or 5%, the percentage alone does not tell you how much money you could be responsible for after a covered loss.
You need to convert it into dollars.
The basic process is simple: find the applicable insured amount shown by your policy, convert the deductible percentage to a decimal, and multiply the insured amount by the decimal.
For example, if the applicable insured amount is $500,000 and the deductible is 2%:
$500,000 × 0.02 = $10,000
In this simplified example, the percentage deductible equals $10,000. That is a much more useful number than simply knowing that your policy says "2%."
Percentage deductible calculator
Use the table below for quick examples.
| Applicable insured amount | 1% | 2% | 3% | 5% |
|---|---|---|---|---|
| $250,000 | $2,500 | $5,000 | $7,500 | $12,500 |
| $300,000 | $3,000 | $6,000 | $9,000 | $15,000 |
| $400,000 | $4,000 | $8,000 | $12,000 | $20,000 |
| $500,000 | $5,000 | $10,000 | $15,000 | $25,000 |
| $600,000 | $6,000 | $12,000 | $18,000 | $30,000 |
| $750,000 | $7,500 | $15,000 | $22,500 | $37,500 |
| $1,000,000 | $10,000 | $20,000 | $30,000 | $50,000 |
These are simplified educational examples. Your actual deductible is determined by your policy and the amount to which the percentage applies.
Step 1: Find the deductible on your declarations page
Start with your homeowners insurance declarations page. It summarizes important information about your policy, including coverages, coverage amounts and deductibles.
Look for deductible descriptions such as wind and hail, windstorm, other perils, all other perils, percentage deductible, or named storm. The terminology can vary by insurance company and policy. You may also have more than one deductible.
Do not assume that the deductible applying to one type of loss applies to every claim. Our guide to reading your home insurance declarations page walks through the whole page section by section.
Step 2: Find the insured amount the percentage applies to
Next, identify the insured amount used by your specific policy for that percentage deductible.
For many homeowners, the declarations page will be the starting point for finding the relevant policy values.
If you cannot determine which amount the percentage applies to, ask your insurance company or licensed insurance professional before doing the calculation.
This matters because the deductible is not necessarily based on what you paid for the house, what you could sell the house for today, your county tax appraisal, your mortgage balance, or an online real estate estimate.
Insurance values and real estate values serve different purposes. Use the amount specified by your policy for the applicable deductible.
Step 3: Convert the percentage to a decimal
To perform the calculation, convert the percentage into decimal form.
1% = 0.01, 2% = 0.02, 3% = 0.03, 5% = 0.05
Then multiply that decimal by the applicable insured amount.
Step 4: Multiply the numbers
Here are several examples.
Example: 1% deductible on $400,000
Applicable insured amount $400,000, deductible 1%. Calculation: $400,000 × 0.01 = $4,000.
Example: 2% deductible on $400,000
Applicable insured amount $400,000, deductible 2%. Calculation: $400,000 × 0.02 = $8,000.
Example: 2% deductible on $600,000
Applicable insured amount $600,000, deductible 2%. Calculation: $600,000 × 0.02 = $12,000.
Example: 5% deductible on $500,000
Applicable insured amount $500,000, deductible 5%. Calculation: $500,000 × 0.05 = $25,000.
The higher the insured amount, the larger a percentage deductible becomes in dollars.
Is a 2% deductible 2% of the repair bill?
This is one of the most common points of confusion.
A percentage property deductible should not automatically be interpreted as a percentage of the contractor's repair estimate.
Suppose the applicable insured amount is $500,000 and the policy has a 2% deductible. The simplified calculation is $500,000 × 0.02 = $10,000.
Now suppose covered storm damage is estimated at $18,000. You would not calculate the deductible by taking 2% of $18,000. That would produce $360, which is not the percentage deductible in this example.
The deductible calculated from the applicable insured amount is $10,000. The specific policy controls how the deductible applies, so always verify the calculation using your actual policy documents.
What if the damage is less than the deductible?
A percentage deductible can become especially important when the cost of covered damage is close to or below the deductible.
Consider this simplified example: applicable insured amount $500,000, wind and hail deductible 2%, calculated deductible $10,000, covered hail damage $8,500.
Because the covered damage in this example is less than the applicable deductible, there may be no insurance payment. The fact that a cause of loss is covered does not necessarily mean every loss produces a payment. The amount of covered damage and the applicable deductible both matter.
Why can the same percentage produce a different deductible next year?
Percentage deductibles can change in dollar terms even when the percentage does not change.
Suppose your applicable insured amount this year is $450,000. At 2%: $450,000 × 0.02 = $9,000. Now suppose the applicable insured amount at a later renewal is $500,000. The percentage remains 2%, but $500,000 × 0.02 = $10,000.
The deductible increased by $1,000 even though "2%" still appears on the policy. This is one reason it is useful to recalculate percentage deductibles when reviewing a renewal.
Why might the insured amount increase?
Home insurance values are not necessarily intended to track the home's market price.
Insurance companies consider the amount needed to repair or rebuild covered property according to the policy and their valuation methods. Construction costs and other factors can change over time.
As applicable insured amounts change, a percentage-based deductible can change in dollars as well. This is why comparing only the percentage from one renewal to the next can miss part of the picture.
How much is a 1%, 2%, 3%, or 5% deductible?
A 1% deductible equals $1 for every $100 of the applicable insured amount. Examples: $300,000 → $3,000, $500,000 → $5,000, $1,000,000 → $10,000.
A 2% deductible equals $2 for every $100. Examples: $300,000 → $6,000, $500,000 → $10,000, $1,000,000 → $20,000.
A 3% deductible: $300,000 → $9,000, $500,000 → $15,000, $1,000,000 → $30,000.
A 5% deductible: $300,000 → $15,000, $500,000 → $25,000, $1,000,000 → $50,000.
At higher percentages and insured amounts, converting the deductible into dollars becomes especially important.
Why wind and hail deductibles deserve attention in Texas
Texas homeowners may have a deductible specifically for wind and hail damage.
Outside certain coastal areas, wind and hail coverage is commonly included within a homeowners policy, although a different deductible may apply. Along parts of the Texas coast, wind and hail insurance can be structured differently and may involve separate windstorm coverage.
Wherever the property is located, the calculation should begin with the actual policy rather than an assumption about how a Texas homeowners policy "normally" works. See our 1% vs. 2% wind and hail deductible comparison for a closer look.
Percentage deductible vs. flat-dollar deductible
Not every deductible is percentage-based. A policy might instead show a specific dollar amount such as $1,000, $2,500, or $5,000.
A flat-dollar deductible is already expressed in dollars, so no percentage calculation is needed. A percentage deductible requires you to identify the applicable insured amount and perform the calculation. A homeowners policy can also contain different deductible structures for different types of losses.
Should you calculate your deductible at every renewal?
It is a good practice. When reviewing a homeowners renewal: find the current insured amount, find each applicable deductible, convert every percentage deductible into dollars, compare the result with the prior policy period, review which types of losses each deductible applies to, and consider whether the resulting out-of-pocket amount is financially manageable for your household.
Do this even if the percentage itself did not change. The dollar amount might have.
What if you cannot tell which number to use?
Do not guess. Ask the insurance company or a licensed insurance professional: "What insured amount does this percentage deductible apply to, and what does that deductible equal in dollars today?" That question gets directly to the information you are trying to understand. It can also help prevent confusion between the home's insurance value and its market value. See our guide to replacement cost vs. market value for that distinction.
The takeaway
Percentage deductibles are much easier to evaluate once they become dollar amounts.
The process is: find the applicable insured amount, convert the percentage to a decimal, multiply the two numbers.
A 2% deductible on an applicable insured amount of $300,000 is $6,000. A 2% deductible on $500,000 is $10,000. A 2% deductible on $750,000 is $15,000.
Same percentage. Very different financial exposure. That is why the dollar amount matters more than the percentage by itself.
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