A material omission is the failure to disclose important information that would likely matter to a reasonable consumer’s decision.
Why a material omission matters
A material omission matters because deception can happen through silence or incomplete disclosure, not only through an affirmative false statement. If missing information would affect a consumer’s choice, price comparison, cancellation decision, or understanding of risk, the omission may be legally significant.
Materiality is often central in advertising, sales, warranty, and subscription disputes.
Where a material omission appears
Material omissions appear in consumer-fraud claims, UDAP matters, false-advertising disputes, billing disputes, product-risk disclosures, warranty documents, and online checkout flows.
Practical example
A seller promotes a subscription as month-to-month but does not disclose that cancellation requires a long written notice period. The missing cancellation term may be treated as material.
How a material omission differs from nearby terms
A material omission differs from false advertising because false advertising often focuses on what was said, while an omission focuses on what was left out. It differs from puffery because material omissions concern information likely to affect consumer choice.
Related terms
Quick knowledge check
Why can leaving out information be deceptive even when no sentence is literally false?