A COI is primarily a transactional document. It is requested, issued and reviewed as part of doing business once you buy a commercial insurance policy. It is essentially used as verification that you have a business insurance policy that has coverage a client wants to insulate them from risk if an incident happens.
Getting one usually follows this sequence:
- A client, landlord or partner asks for proof of insurance
- They provide specific requirements (coverage types, limits, endorsements)
- You request a COI from your insurer
- The COI is issued and sent for review
- The third party signs off or asks for changes
This process often happens quickly, sometimes instantly, and can delay work if not handled correctly. If something is missing from the COI, it means it is missing from your policy. The certificate cannot add or modify coverage.



