If you run a business, you’ve probably been asked for a certificate of insurance, or COI, more times than you can count. A landlord wants one before you sign a lease. A general contractor wants one before you step onto a job site. A client wants one before they’ll cut a check. Despite how often it comes up, what a COI actually proves is widely misunderstood.
What a COI actually is
A certificate of insurance is a summary document. It lists your active policies, the carrier, the coverage types, the limits, and the policy period. It’s issued by your broker or carrier as a snapshot of coverage that exists at the time it’s generated.
That’s it. It’s a summary, not the policy itself, and not a guarantee.
What it doesn’t do
A COI does not:
- Amend your policy or add coverage that isn’t already there
- Guarantee that coverage will still be active on the exact date someone needs it
- Automatically add the requesting party as an additional insured, that requires a separate endorsement
This is the part that trips people up. If a landlord needs to be listed as an additional insured, simply handing them a certificate that doesn’t reflect that endorsement doesn’t satisfy the requirement, even if the certificate looks official.
Why requests come so often
Certificates get requested constantly because they’re the fastest way for a counterparty to verify you’re covered without asking to see the full policy. A general contractor working with a dozen subcontractors doesn’t have time to review every policy line by line. A COI lets everyone move faster, as long as it’s accurate and current.
What good COI management looks like
The businesses that handle this well treat certificates as something they can generate on demand, not something they have to request from a broker and wait on. When a new landlord, client, or job requires proof of coverage, the ability to produce an accurate, up-to-date certificate in minutes, rather than days, is the difference between closing a deal on schedule and losing it to paperwork delays.