Coinsurance (Commercial Property)
Plain English
Coinsurance in a business property policy is a rule about insuring enough. If your policy requires you to insure, say, 80% of your building's value and you insure less, a claim can be cut in proportion, even for partial damage. In health insurance the same word means something different: a share of medical costs.
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On this page
Definition
In commercial property insurance, coinsurance is a clause that reduces a claim payment when the property is insured for less than a required percentage of its value. The insurer pays in proportion to the amount of insurance carried divided by the amount required. It differs from coinsurance in health insurance, which is a cost-sharing percentage.
Why It Matters
Business owners often set a building limit once and forget to update it. If rebuilding costs rise, the coinsurance clause can reduce even a small claim, which is a surprise many owners only discover after a loss.
Real-World Example
Imagine a building worth $1,000,000 with an 80% coinsurance clause, so $800,000 of insurance is required. The owner carries $600,000. After a $100,000 covered loss, the insurer pays $600,000 divided by $800,000, or 75%: $75,000, less the deductible. Insured for $800,000 or more, the claim would have paid the full $100,000, less the deductible.
Common Misconceptions
- Assuming coinsurance only matters after a total loss; it can reduce partial claims.
- Confusing it with health insurance coinsurance, which is a cost-sharing percentage.
Key Takeaways
- The California Department of Insurance describes coinsurance as a clause "that defines the amount of each loss that the company pays according to the amount of insurance carried."
- Insuring below the required percentage can reduce claim payments in proportion.
- An agreed value arrangement can waive the coinsurance penalty, per the California guide.
- Check your building and contents limits against current values regularly.
- For homes, the similar idea is insurance to value.
Frequently Asked Questions
Does a homeowners policy have coinsurance?
Many have a similar insurance-to-value condition for replacement cost settlement.
What's it commonly confused with?
Health insurance coinsurance, where you pay a percentage of covered medical costs.
Related Terms
Related Coverages
- Commercial Property Insurance
Related Scenarios
Explore the rest of the Business Insurance category.
Browse Business Insurance terms →Sources
The factual claims on this page were checked against these sources. Rules and figures change, so check the source itself if you need to confirm the current version.
- Commercial insurance guideCalifornia Department of Insurance
Educational information, not advice: This page is for general education only, not legal, financial, or insurance advice. Actual coverage, discounts, and requirements depend on your policy’s wording, your insurer, and the laws of your state. Confirm specifics with your own insurer or a licensed agent before making a decision. Insurpedia does not sell insurance and does not recommend specific insurers.