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If you’re applying for life, critical illness, or disability insurance in Canada, you may come across the Medical Information Bureau (MIB) during the underwriting process. Many applicants worry that the MIB is some kind of “medical database” that works against them — but that’s not quite accurate.

This guide explains what the Medical Information Bureau is, how it works, what information it collects, and how it may affect your insurance application. Understanding the MIB can help you avoid surprises and apply for coverage with confidence.

Medical Information Bureau (MIB)

What is the Medical Information Bureau (MIB)?

The Medical Information Bureau (MIB) is a not-for-profit organization that operates an information exchange program among its member insurance companies. Its purpose is to help insurers assess risk accurately and consistently when underwriting life, critical illness, disability, and health insurance policies.

Rather than storing full medical files or test results, the MIB maintains a database of coded underwriting information that has been reported by member companies during past insurance applications. This information is used only when an applicant has provided authorization and is applying for new coverage with another participating insurer.

The MIB does not approve or deny insurance applications. Each insurance company makes its own underwriting decisions using the MIB as just one of many reference points.

How the MIB works in life insurance applications

When you submit an insurance application, you are required to sign a consent form allowing the insurer to collect and verify underwriting information. With this authorization, the insurer may send an inquiry to MIB Inc. to see whether a record exists under your name.

If the MIB has information on file, it will transmit that information back to the insurer in a coded format. These codes are not medical charts or diagnoses. Instead, they represent categories of medical conditions or other risk-related factors that may be relevant to underwriting.

The insurer then compares the MIB information with what you disclosed on your application. If everything aligns, the MIB has little to no impact on the outcome. If there are discrepancies, the insurer may ask follow-up questions or request additional medical documentation before making a decision.

What information does the MIB collect?

The information held by the MIB is intentionally limited. It focuses on data that may materially affect insurability and pricing, rather than detailed health records.

Examples of what MIB codes may represent include:

  • Serious medical conditions
  • High-risk or hazardous hobbies
  • Adverse driving history
  • Alcohol or drug use
  • A criminal record

Because this information is coded, it cannot be read as a diagnosis or medical report on its own. It simply signals to an insurer that a particular risk factor was previously identified during underwriting.

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Why insurance companies use the MIB

The primary purpose of the MIB is to promote accuracy and fairness in insurance underwriting. By allowing insurers to verify information disclosed across multiple applications, the MIB helps reduce errors and misrepresentation — whether intentional or accidental.

For example, if a medical condition was disclosed on a prior application but omitted on a later one, the MIB code may prompt the insurer to seek clarification. In this way, the MIB can protect insurers from fraud while also helping ensure honest applicants are assessed appropriately.

This system ultimately helps keep insurance premiums more stable for all policyholders.

How does the MIB affect your insurance approval?

For most applicants, the MIB has little to no negative impact. Many people have no MIB record at all, and those who do often have information that fully matches what they’ve disclosed on their application.

Problems typically arise only when there is a material inconsistency between the application and the MIB file. When that happens, the insurer does not automatically decline coverage. Instead, it may request clarification, medical records, or additional underwriting evidence before proceeding.

An MIB record on its own is not a reason for denial.

Can insurance companies report information to the MIB?

Yes. Member insurance companies may contribute underwriting information to MIB Inc. after evaluating an application. 

Any information shared with the MIB is limited strictly to underwriting-relevant details and is submitted in a coded format rather than plain language. This information may be accessed by other member insurance companies if the individual applies for coverage again in the future.

This shared reporting system helps improve consistency and accuracy across insurers, particularly for applicants who submit multiple insurance applications over time.

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Can you request your MIB report?

You have the right to review your own MIB file at no cost by submitting a written request directly to MIB Inc. Once your request is received, MIB will disclose the information it has on file about you.

You can request your MIB record using any of the following methods:

Email: canadadisclosure@mib.com

Phone: 1-866-692-6901

Mail:

MIB, LLC

50 Braintree Hill Park, Suite 400

Braintree, MA 02184-8734, USA

Website: www.mib.com

What if your MIB information is incorrect?

While errors in the MIB database are uncommon, mistakes can happen. Because the MIB’s information is used in underwriting decisions, any inaccuracies could potentially affect your life, critical illness, disability, or health insurance application. It’s important to know that you have the right to review, correct, or dispute any information in your file.

If you find errors, you can contact MIB and the insurance company that reported the information. You may need to provide supporting documentation, such as medical records or letters from your physician, to verify the correct information.

Why working with an advisor matters

If you have pre-existing medical conditions, a complex health history, or previous insurance applications, understanding how the MIB works becomes especially important. A licensed insurance advisor can help ensure your application is accurate, complete, and positioned with insurers that are best suited to your situation.

An advisor can also assist if questions arise related to MIB information, helping prevent unnecessary delays or misunderstandings during underwriting.

Frequently Asked Questions

The Medical Information Bureau (MIB) is a non-profit organization that helps insurance companies verify information during life, critical illness, health, and disability insurance underwriting using coded data.

The MIB does not approve or deny life insurance applications. It is only used to flag inconsistencies, which may lead insurers to ask follow-up questions or request more information.

MIB collects limited, coded information related to serious medical conditions and high-risk activities that may affect your health or life expectancy. It does not store full medical records or test results.

MIB information is retained for up to seven years, after which it is removed automatically.

MIB protects your personal information under the same strict confidentiality rules that apply to Canadian insurers, and it must comply with all applicable federal and provincial privacy laws.

Because MIB is based in the United States, your information may be transferred outside Canada. In those cases, MIB must also comply with applicable U.S. privacy laws and safeguards.

To learn more, review MIB’s privacy policy at www.mib.com/privacy_policy.html

What the Medical Information Bureau Means for Your Insurance Application

Understanding how the Medical Information Bureau works can help you approach the insurance application process with greater confidence. Knowing how your information is collected and used allows you to avoid surprises and ensures your application accurately reflects your health, lifestyle, and financial situation.

Whether you are in excellent health, have pre-existing medical conditions, or live a higher-risk lifestyle, we help match you with the insurance company and product that views you as a lower risk and can offer coverage at a fair and competitive price. Every insurer underwrites differently, and choosing the right one can make a meaningful difference in approval and cost.

At Brian So Insurance, we don’t just sell insurance. We provide ongoing support to ensure your coverage continues to align with your changing financial goals and personal circumstances over time. We can also design a complete insurance solution that includes term and permanent life insurance, disability coverage, health and dental plans, long-term care insurance, and critical illness insurance. This comprehensive approach helps protect you and your family against the full range of risks life may present.

For a free, no-obligation consultation, email info@briansoinsurance.com or call 604-928-1628. We’ll help you find the right coverage with clarity and confidence.

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While we make every effort to keep our site updated, please be aware that timely information on this page, such as quote estimates, or pertinent details about companies, may only be accurate as of its last edit day. Brian So Insurance and its representatives do not give legal or tax advice. Please consult your own legal or tax adviser. This post is a brief summary for indicative purposes only. It does not include all terms, conditions, limitations, exclusions, and other provisions of the policies described, some of which may be material to the policy selection. Please refer to the actual policy documents for complete details which can be provided upon request. In case of any discrepancy, the language in the actual policy documents will prevail. A.M. Best financial strength ratings displayed are not a warranty of a company’s financial strength and ability to meet its obligations to policyholders.

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