An MIB report is a consumer disclosure provided by the Medical Information Bureau (MIB) that summarizes the coded information on file for an individual who has applied for underwritten life, health, or disability insurance with member companies. The report does not contain full medical records but instead lists codes that indicate the presence of certain medical conditions, hazardous activities, or adverse underwriting actions reported by insurers. Consumers have the right to request their MIB report, review it for accuracy, and dispute or correct any errors, similar to how they can access and correct credit reports. For insurers, the underlying MIB data serves as a cross-check on applications to identify omissions or inconsistencies. The consumer-facing MIB report supports transparency, privacy rights, and regulatory compliance in the insurance underwriting process.

In everyday advisory work, an MIB report is often recommended when a client experiences an unexpected decline, postponement, or heavy rating and there is concern that prior information in the MIB file might be incorrect or outdated. Producers may suggest, "You should order your MIB report to see what is on file," especially if the client denies ever having a certain diagnosis that appears to be influencing underwriting. If errors are found, the client can work directly with MIB to correct the record, which may improve outcomes for future applications. Advisors sometimes use the MIB report to reassure clients that data held by MIB is limited and coded rather than a complete medical history. Compliance training frequently covers how MIB reports work, what rights consumers have, and how agents should respond when clients ask whether an insurance decision may have been affected by MIB information.