Named Storm Deductible Cash Reserve Calculator

Estimate the cash cushion you need to handle a percentage-based hurricane or named storm deductible. Enter your dwelling limit, the named storm deductible percentage, and a modeled loss scenario to see the deductible amount, potential uninsured loss above limits, and whether current savings cover the exposure.

Total dwelling limit on your homeowners policy used to calculate the percentage deductible.
Percentage of the dwelling limit you must pay out of pocket when a named storm claim is filed.
Estimated damage from your catastrophe model, insurance summary, or contractor scenario for a severe storm.
Optional. Defaults to $0. Include liquid reserves, HELOC availability, or catastrophe savings buckets.

Insurance contracts vary. Confirm deductible language, coverage limits, and exclusions with your carrier or broker before relying on these estimates.

Examples

  • $600,000 coverage, 5% deductible, $420,000 loss, $80,000 savings ⇒ Deductible amount: $30,000.00 USD • Out-of-pocket requirement: $30,000.00 USD • Insurance payout (after deductible): $390,000.00 USD • Uninsured loss above limits: $0.00 USD • Reserve gap after savings: $0.00 USD • Savings surplus remaining: $50,000.00 USD • Deductible percentage applied: 5.00%
  • $500,000 coverage, 3% deductible, $650,000 loss, savings blank ⇒ Deductible amount: $15,000.00 USD • Out-of-pocket requirement: $165,000.00 USD • Insurance payout (after deductible): $485,000.00 USD • Uninsured loss above limits: $150,000.00 USD • Reserve gap after savings: $165,000.00 USD • Savings surplus remaining: $0.00 USD • Deductible percentage applied: 3.00%

FAQ

Should I include other structures or personal property?

This calculator focuses on the dwelling deductible. Run separate scenarios for other structures or personal property if they have distinct limits or percentage deductibles.

How do mitigation upgrades affect the result?

If wind retrofits lower your insurer's modeled loss, reduce the modeled repair cost input to reflect new projections and rerun the numbers to see the lower reserve need.

Can I model multiple deductibles?

Yes. Duplicate the run for wind/hail or all-perils deductibles to stack the worst-case exposure across peril types.

What if my policy has a deductible cap?

Enter the capped amount as the dwelling limit multiplied by the effective percentage so the tool reflects the maximum deductible you'd pay.

Additional Information

  • Named storm deductibles are calculated on the full Coverage A limit, not the loss amount, which can create large cash needs compared with flat deductibles.
  • Uninsured loss captures damage above the dwelling limit—consider ordinance or law coverage and personal property limits separately.
  • Reserve gap highlights how much additional liquidity, credit lines, or parametric cover you may need before storm season.

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