Co-insurance

{{Short description|Splitting of financial risk among parties}} In insurance, '''co-insurance''' or '''coinsurance''' is the splitting or spreading of risk among multiple parties.

==In the United States== In the U.S. insurance market, co-insurance is the joint assumption of risk between the insurer and the insured. In title insurance, it also means the sharing of risks between two or more title insurance companies.

===In health insurance=== In health insurance, copayment is fixed while co-insurance is the percentage that the insured pays after the insurance policy's deductible is exceeded, up to the policy's stop loss.<ref>{{cite web|title=2006 Medical Plan Frequently Asked Questions|at=What is the difference between co-payments, coinsurance, and deductibles? (entry)|url=http://www2.ups.edu/humanresources/2006_benefits/Benefits2006-FAQ.htm#co-payments|website=UPS.edu|publisher=University of Puget Sound|accessdate=2020-01-29}}</ref> It can be expressed as a pair of percentages with the insurer's portion stated first,<ref>{{cite web|url=http://www.safepol.com/health-insurance/101/difference-between-coinsurance-deductible-out-of-pocket-limit-copayment-and-premium.html#coinsurance|title=Health Plan Explained}}</ref> or just a single percentage showing what the insured pays.<ref>[https://www.healthcare.gov/glossary/co-insurance/ glossary]. coinsurance</ref> Once the insured's out-of-pocket expenses equal the stop loss, the insurer will assume responsibility for 100% of any additional costs. 70–30, 80–20, and 90–10 insurer-insured co-insurance schemes are common, with stop loss limits of $1,000 to $3,000 after which the insurer covers all expenses.<ref>[http://www.insurelane.com/insurance-faq/faq24.html What Is Coinsurance?] {{Webarchive|url=https://web.archive.org/web/20090227040250/http://www.insurelane.com/insurance-faq/faq24.html |date=2009-02-27 }}. Insurancelane.</ref>

===In property insurance===

Co-insurance is a penalty imposed on the insured by the insurance carrier for underinsuring the value of the tangible property. The penalty is based on a percentage stated within the policy and the amount underreported.<ref>{{Cite web|date=2011-09-29|title=What Are Coinsurance Clauses and Do Courts Enforce Them? {{!}} Property Insurance Coverage Law Blog {{!}} Merlin Law Group|url=https://www.propertyinsurancecoveragelaw.com/2011/09/articles/insurance/what-are-coinsurance-clauses-and-do-courts-enforce-them/|access-date=2020-08-31|website=Property Insurance Coverage Law Blog|language=en-US}}</ref>

===In title insurance=== Owner's title insurance policy forms of the American Land Title Association created between 1987 and late 2006, contain co-insurance clauses. For partial losses, they require the insured carry a percentage of the risk of loss in two circumstances. The first is if the insured did not insure its title for at least 80% of its market value at the time the policy was issued. In that case, the insurer will pay only 80% of the loss. The second is if improvements constructed on the property after the policy is issued increase the property's value by at least 20% above the amount of the policy. In that case, the insurer will pay a percentage of the claim equal to the ratio of 120% of the amount of insurance purchased divided by the sum of the amount of insurance and the cost of the improvements.<ref>See, for example, Conditions and Stipulations No. 7(b) of the [http://www.vuwriter.com/bin/stewart/PdfGeneratorCRXServlet?path=/content/stewart/virtualunderwriter/en/forms/2011-1/FM00000958&parentpagepath=/content/stewart/virtualunderwriter/en/forms 1992 ALTA Owner's Policy].</ref>

Co-insurance is also used among U.S. domestic title insurers in a manner similar to that described below for the international insurance market.

===In other insurance=== In some cases, including employer's liability insurance, co-insurance percent denotes a function analogous to the copay function that it has in health insurance, in which the insured covers a certain percentage of the losses up to a certain level.<ref>StudentCover. [https://studentcover.in/coinsurance/ What is Coinsurance? Know more about Copayment/Copay].</ref>

In business income interruption insurance, a type of time-element insurance,<ref>Miller M, Garko M. (2008). [http://www.rkmc.com/Time-Element-Coverage.htm Time Element Coverage].</ref> the co-insurance percent indicates how long the coverage will last, and can range from 50% to 125%. The former co-insurance allows for 6 months of coverage, compared to 15 months for 125%.<ref>[http://www.allbusiness.com/management/3587797-1.html Taking time out for time-element insurance]. ''American Agent & Broker''.</ref>

==See also== * Cost sharing

==References== {{Reflist}}

==External links== * [https://www.casact.org/sites/default/files/database/studynotes_anderson5.pdf Insurance to Value] from the Casualty Actuarial Society

Category:Insurance