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.

Where this term matters

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Tip

Glossary definitions are educational. Always check your own policy language — insurers can define common terms differently from one another. When in doubt, request a written explanation from your agent.

Related terms

RepresentationA representation is a material statement provided on an insurance application that the insurer relies upon when deciding whether and at what price to offer coverage.Utmost Good Faith (Uberrima Fides)Utmost good faith, derived from the Latin 'uberrima fides,' is the bedrock legal principle requiring both parties to an insurance contract to disclose all material facts and act with total transparency.EndorsementA written modification to a policy that adds, removes, or changes coverage — same as a rider.MisrepresentationMisrepresentation occurs when a policyholder provides incorrect information — intentionally or accidentally — that materially influences the insurer's decision to issue a policy or set a premium.
Source: Cover Forge USA editorial team|Last verified: May 2026|Methodology
Definitions are educational and may be simplified. Always refer to your policy contract and consult a licensed agent for terms that affect coverage decisions.
CF

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 June 2026

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