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Insurance Products · May 21, 2026

How to read a certificate of insurance

Learn how to read a certificate of insurance (COI). This guide explains policy dates, limits, named insureds, and additional insured endorsements for small businesses.

Corentin Hugot
Corentin HugotCo-founder & COO

For small business owners, understanding a Certificate of Insurance (COI) is vital. You might need to provide one to a client. Or you might need to request one from a vendor. A COI proves that an entity has specific insurance coverage. It's a snapshot of an insurance policy.

This guide will walk you through how to read a certificate of insurance. We will explain each key section. This will help you ensure compliance and manage your business risks effectively.

What is a certificate of insurance for small business?

A Certificate of Insurance (COI) is a document. It provides proof of insurance coverage. It summarizes the key details of an insurance policy. Think of it as an ID card for an insurance policy. It does not grant coverage itself. It only confirms existing coverage.

Small businesses often need COIs. Clients, landlords, or partners may ask for them. They want assurance that you are insured. This protects them if an accident or loss occurs. Similarly, you should ask for COIs from your vendors. This ensures they carry their own proper coverage. This is a key part of understanding COI small business needs.

Key Sections of a Certificate of Insurance Details Explained

A standard COI form (ACORD 25) is used across the industry. While the layout is consistent, the details change. Here's a breakdown of the important sections you will see. This helps with certificate of insurance details explained.

1. Producer

This section identifies the insurance agent or broker. This is the company that issued the COI. It includes their name, address, and contact information. You would contact them with questions about the policy.

2. Insured

This section lists the "Named Insured." This is the person or business covered by the policy. Make sure this name matches the business you are working with. Or it should match your own business name.

3. Coverages

This is the core of the COI. It lists the types of insurance policies in force. It also shows their limits and effective dates. Common commercial policies include:

  • Commercial General Liability (CGL): This covers claims of bodily injury or property damage. It also covers personal and advertising injury. It's often required for contractors, retailers, and service providers.
  • Commercial Auto Liability: This covers accidents involving business vehicles. It protects against bodily injury and property damage claims.
  • Workers' Compensation: This covers medical costs and lost wages for employees injured on the job. Requirements vary by state.
  • Professional Liability (Errors & Omissions - E&O): This covers claims of negligence or mistakes in professional services. Architects, consultants, and real estate agents often need this.
  • Employment Practices Liability Insurance (EPLI): This covers claims from employees. These include wrongful termination, discrimination, or harassment. You can learn more about Triple-I employment practices liability insurance.
  • Commercial Property: This covers damage to your business property. This includes buildings and contents.
  • Business Owners Policy (BOP): Many small businesses choose a BOP. It combines general liability and commercial property insurance. It often adds business interruption coverage. For example, the California Department of Insurance explains BOP as covering property and general liability.

For each coverage type, look for:

  • Policy Number: The unique identifier for the insurance policy.
  • Policy Effective Date: When the policy coverage began.
  • Policy Expiration Date: When the policy coverage ends. Ensure this date is in the future. An expired policy means no coverage.
  • Limits: These are the maximum amounts the insurer will pay.
    • Per Occurrence: The maximum paid for a single incident.
    • General Aggregate: The total maximum paid over the policy period.
    • Deductibles: Some policies may have a deductible. This is the amount the insured pays before the insurer pays. It is less common to see specific deductible amounts on a COI.

4. Description of Operations / Locations / Vehicles

This section provides additional details. It clarifies the scope of coverage. For example, it might list specific project names or locations. It could name specific vehicles covered by auto policies. This is also where "Additional Insured" endorsements are often noted.

5. Certificate Holder

This is the party requesting the COI. It's usually you or your client. Make sure your name and address are correct here. If you are an "Additional Insured," this section will often reference that.

6. Additional Insured

This is a critical detail for many contracts. An "Additional Insured" is a party added to another's insurance policy. This party gains protection under that policy. For example, a landlord might require you to add them as an additional insured on your general liability policy. This protects them if a claim arises from your business operations on their property.

Look for specific language here. It should state that you (or your client) are an "Additional Insured." It should also specify which policy applies.

7. Cancellation

This section explains how the insurer will notify the certificate holder if the policy is canceled. It usually states a number of days' notice. This gives you time to react if a vendor's policy is canceled.

How do I check if a business is insured?

To check if a business is insured, you should always request a Certificate of Insurance (COI). Do not just take their word for it.

  1. Request a COI: Ask the business to provide an up-to-date COI. Specify the types of coverage and limits you require.
  2. Review the COI: Use the steps outlined in this guide. Check the policy dates, coverage types, and limits. Verify the "Named Insured" and "Additional Insured" sections.
  3. Contact the Producer (Optional): If you have any doubts, contact the insurance producer listed on the COI. They can verify the policy's validity. They can confirm the details. However, they cannot change the policy.

This process ensures you have concrete proof of coverage. It helps you meet certificate of insurance requirements for contracts.

Small Business COI Review Checklist

Use this small business COI review checklist every time you receive a COI. This helps you ensure all details are correct.

  • Is the COI current? Check the "Policy Effective Date" and "Policy Expiration Date." The policy should be active.
  • Is the "Named Insured" correct? Does the business name match the entity you are working with?
  • Are the required coverages listed? Does it include General Liability, Workers' Comp, Auto, etc., as your contract requires?
  • Are the limits sufficient? Do the "Per Occurrence" and "Aggregate" limits meet your contractual requirements?
  • Are you listed as an "Additional Insured" (if required)? Check the "Description of Operations" or "Certificate Holder" section. It should explicitly state this.
  • Is a "Waiver of Subrogation" included (if required)? This prevents the insurer from seeking recovery from you.
  • Is the "Certificate Holder" information accurate? Does it correctly identify who requested the COI?
  • Is there a cancellation notice period? This ensures you receive notice if the policy is canceled.

When to Ask Your Licensed Agent

Reading a COI is a skill you can develop. However, insurance can be complex. Always consult your licensed insurance agent for specific advice. They can help you:

  • Understand specific policy exclusions.
  • Determine adequate coverage limits for your business.
  • Negotiate specific endorsements for contracts.
  • Clarify any confusing language on a COI.

Your agent is a valuable resource. They can ensure your business is properly protected. They can also help you understand the COIs you receive from others.

Conclusion

Understanding a Certificate of Insurance is a crucial skill. It helps protect your small business. It ensures compliance with contracts and agreements. By knowing how to read a certificate of insurance, you can verify coverage. You can confirm important details like policy limits and additional insured status.

Use this guide and the checklist to review COIs confidently. For any complex questions, always reach out to your licensed insurance professional. They can provide tailored guidance for your unique business needs.

Need help streamlining your insurance sales processes? Learn more about how Kinro helps businesses build compliant insurance sales infrastructure on our Kinro homepage. If you have specific questions about your insurance operations, feel free to Contact Kinro directly.

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