ISO Form CP 00 10 §F.1 & CP 19 10

Commercial Property Coinsurance Penalty & Agreed Value Calculator

Simulate partial property losses, examine Did / Should underinsurance ratios, and calculate out-of-pocket penalties when policy limits fall below statutory coinsurance thresholds.

verifiedWhat This Means in Practice: Coinsurance Penalty Mechanics

Commercial property coinsurance penalties enforce accurate valuation reporting at policy inception. If an insured carries a $1,200,000 building limit on a $2,000,000 property with an 80% coinsurance requirement ($1,600,000 'Should'), the recovery ratio is 75% ($1.2M / $1.6M). On a $400,000 fire loss with a $10,000 deductible, the insurer pays $290,000 and the insured suffers a $110,000 out-of-pocket penalty. Attaching ISO CP 19 10 Agreed Value completely waives this condition.

$500k$5M$10M
$250k$5M$10M
$50k$1M$2M
Settlement Calculation

Coinsurance Penalty Applied (Underinsured)

Recovery Ratio: 75.0%
Required Limit ("Should")$1,600,000Valuation × Coinsurance %
Net Insurer Payout$290,000[(Did / Should) × Loss] - Deductible
Out-of-Pocket Loss / Penalty$110,000Deductible + Uncovered Loss
Frequently Asked Questions

Coinsurance & Agreed Value FAQ

Key questions on commercial property Did/Should formulas, claim disputes, and ISO endorsements.

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Automate Property Coinsurance Audits & Agreed Value Checks

Verify replacement cost valuations, audit 80%/90% coinsurance requirements, and check CP 19 10 Agreed Value suspensions in seconds with Becky's Inbox.