General Concepts
Warranty (Insurance)
In insurance law, a warranty is a binding contractual promise — if the warranted fact is false or the condition lapses, the insurer may void the policy regardless of whether the breach contributed to the loss.
Last reviewed: May 2026 · Editorial methodology
Definition
Warranties in insurance are stricter than representations: a representation is a statement believed to be true at the time of application, while a warranty is an absolute guarantee. Warranties can be affirmative (stating a fact at the time of contracting, e.g., 'the sprinkler system is fully operational') or promissory (guaranteeing a condition will be maintained throughout the policy, e.g., 'the alarm will remain active at all times'). Under traditional common law, any breach of warranty — even one unrelated to the loss — could void the policy. Modern U.S. statutes in many states have softened this by requiring a causal connection between the breach and the loss before the insurer can deny a claim. Businesses commonly encounter warranties in commercial property and marine policies, where conditions around security, maintenance, or occupancy are routinely warranted.
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Cover Forge USA Editorial Team
Editorial Lead
This article was researched and written by the Cover Forge USA editorial team against federal sources (NAIC, CMS, FEMA, DOL, SSA, state DOIs) and standard policy forms. Bylines organize content by topic — they do not assert individual licensure. See our editorial-policy for details.
Reviewed 2026-06-14
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