Known Loss Doctrine
A legal principle in insurance that prevents coverage for losses that have already occurred or are certain to occur before the policy becomes effective. This doctrine protects insurers from adverse selection by ensuring insurance covers unknown future risks, not existing problems.
Example
“The homeowner's insurance claim was denied under the known loss doctrine because the foundation crack existed before the policy effective date, even though the homeowner didn't disclose it on the application.”
Memory Tip
Think "no crystal ball coverage" - insurance covers unknown future risks, not losses you already know about.
Why It Matters
This doctrine maintains the fundamental principle that insurance spreads risk among many policyholders for uncertain future events. Without it, insurance would become unaffordable as people would only buy coverage when they knew losses were imminent.
Common Misconception
Many people believe that if they didn't know about a problem when buying insurance, it's automatically covered, but the doctrine applies to losses that existed regardless of the policyholder's knowledge. Others think this only applies to obviously visible damage, but it can include any existing condition that would lead to a claim.
In Practice
A business owner applies for property insurance on January 1st, with coverage starting January 15th. Unknown to the owner, a small electrical fire starts in the walls on January 10th due to faulty wiring installed years earlier. When the fire causes $50,000 in damage on January 20th, the insurer denies the claim under known loss doctrine because the fire began before the policy effective date, even though the owner was unaware and the major damage occurred after coverage started.
Etymology
The term combines "known loss," referring to damages or risks already identified or certain, with "doctrine," from Latin "doctrina" meaning teaching or principle, reflecting established legal precedent.
Common Misspellings
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Related Terms
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