Coinsurance Math on a Warehouse Fire
A Michigan warehouse owner reports a fire. The commercial property policy has a replacement cost limit of $1,500,000 on the building, an 80% coinsurance clause, a $25,000 deductible, and no blanket or agreed-value endorsement. The adjuster estimates the building's replacement cost at $2,500,000 and the covered fire damage at $500,000. The owner also claims $80,000 in business income loss. The policy has a 72-hour waiting period and a 12-month period of restoration. The owner's records show the business would have earned $40,000 per month but only $12,000 per month was fixed. The insurer pays the coinsurance-penalized building amount and denies all business income because the owner did not submit monthly reports. The owner asks the public adjuster whether the denial is proper and whether he should accept $300,000 for the building.
1. Calculate the building payment under the 80% coinsurance clause and explain each step.
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Required insurance = 80% x $2,500,000 = $2,000,000. Carried limit = $1,500,000. The coinsurance ratio is $1,500,000 / $2,000,000 = 0.75. Covered loss before deductible = $500,000. The penalty-adjusted loss = $500,000 x 0.75 = $375,000. Subtract the $25,000 deductible = $350,000. So the insurer's $300,000 offer is $50,000 low if the loss and values are accepted. The clause does not simply reduce the loss to the policy limit; it applies the ratio because the owner insured only 75% of the required amount. The public adjuster should verify the replacement-cost estimate, confirm whether any blanket or agreed-value endorsement changes the calculation, and document the coinsurance worksheet in the claim file. The calculation also assumes the $500,000 is entirely covered damage and that no other insurance applies.
2. Is the insurer's denial of all business income proper because the owner did not submit monthly reports?
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Not automatically. The policy requires a 72-hour waiting period. The insured must show the period of restoration and the actual loss of business income during that period. Missing monthly reports may breach a reporting condition, but the insurer must usually show prejudice or that the condition was material. The owner has records showing $40,000 monthly earnings and $12,000 fixed costs, so the adjuster should reconstruct the loss month by month, apply the 72-hour waiting period, and document the period of restoration. A blanket denial is vulnerable if the insurer had enough information to evaluate the claim. The adjuster should request the policy's business-income conditions, submit a signed proof of loss, and preserve the owner's records. The denial should be challenged with evidence, not accepted because a form was late.
3. What negotiation and documentation steps should the public adjuster take before recommending acceptance?
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The adjuster should not recommend acceptance of $300,000. First, obtain the insurer's coinsurance worksheet and compare it to the replacement-cost estimate; a $50,000 gap is worth challenging. Second, rebuild the business-income claim with monthly profit-and-loss statements, payroll, rent, and utility records, and apply the 72-hour waiting period. Third, check for endorsements that might raise the building limit or waive coinsurance. Fourth, if the insurer maintains its position, request appraisal under the policy's appraisal clause for the amount-of-loss dispute. Throughout, keep a written log of estimates, correspondence, and the insured's mitigation. The judgment is to separate the coverage question (coinsurance) from the damages question (business income) and not trade one away to settle the other. A release should not be signed until both calculations are corrected.