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📋 '''Materiality''' refers to the threshold at which a piece of information is significant enough to influence a decision — in insurance, this most commonly applies to the [[Definition:Duty of disclosure | duty of disclosure]] owed by an applicant or [[Definition:Policyholder | policyholder]] to an [[Definition:Underwriter | underwriter]]. A fact is considered material if a reasonable underwriter would take it into account when deciding whether to accept a [[Definition:Risk | risk]], on what terms, or at what [[Definition:Premium | premium]]. The concept traces back centuries in [[Definition:Insurance law | insurance law]] and remains central to the enforceability of [[Definition:Insurance contract | insurance contracts]], particularly under doctrines of [[Definition:Utmost good faith | utmost good faith]].

⚙️ When an applicant seeks [[Definition:Insurance coverage | coverage]], they are generally required to disclose all facts that a prudent underwriter would deem material. If a material fact is concealed or misrepresented — whether intentionally or inadvertently — the insurer may have grounds to [[Definition:Avoidance | avoid]] the policy, meaning it can treat the contract as though it never existed. Courts and regulators assess materiality using both objective tests (what a reasonable underwriter would want to know) and, in some jurisdictions, subjective tests (what the particular insurer actually relied upon). The standard varies across markets: [[Definition:Lloyd's of London | Lloyd's]] and the London market historically applied a strict "prudent underwriter" test under the [[Definition:Marine Insurance Act 1906 | Marine Insurance Act 1906]], while the UK's [[Definition:Insurance Act 2015 | Insurance Act 2015]] refined this by introducing the concept of a "fair presentation of risk."

💡 Getting materiality right sits at the heart of sound [[Definition:Underwriting | underwriting]] and [[Definition:Claims management | claims handling]]. Disputes over what qualifies as material represent some of the most litigated issues in insurance, frequently surfacing in [[Definition:Professional indemnity insurance | professional indemnity]], [[Definition:Directors and officers insurance (D&O) | D&O]], and [[Definition:Reinsurance | reinsurance]] claims. For [[Definition:Insurtech | insurtech]] companies automating [[Definition:Application process | application processes]], encoding materiality thresholds into digital workflows is a significant design challenge — too narrow a scope invites [[Definition:Adverse selection | adverse selection]], while too broad an approach creates friction and abandonment. Ultimately, materiality ensures that the risk transfer mechanism works as intended: both parties share enough relevant information for the contract to function fairly.

'''Related concepts:'''
{{Div col|colwidth=20em}}
* [[Definition:Duty of disclosure]]
* [[Definition:Utmost good faith]]
* [[Definition:Misrepresentation]]
* [[Definition:Insurance Act 2015]]
* [[Definition:Avoidance]]
* [[Definition:Fair presentation of risk]]
{{Div col end}}

Definition:Materiality - Revision history

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