How certificates of insurance work: what a COI proves, what it does not, and how to get one fast

How certificates of insurance work

QUICK ANSWER

A certificate of insurance is a one-page summary of your policies issued to a holder — a landlord, client or contractor — as proof of coverage on the date it was produced. It confers no rights and does not change your policy. Endorsements such as additional insured status come from the policy, not the certificate, and holders ask for new certificates because the paper goes stale at every renewal.

Reviewed by Michael LaBarbera, Licensed property & casualty agent, Provident Financial Group · Reviewed Oct 11, 2026 Updated Oct 14, 2026

01The holder asksA lease, contract or vendor form states what the holder wants to see: lines, limits, endorsements, and sometimes exact wording.
02The agency issuesYour agent prepares a certificate from your policies, lists the holder, references the endorsements that exist, and sends it.
03The holder files it and watches the datesCompliance teams track the expiration shown and ask again when it passes. Many run software that pauses accounts automatically.
04Something changesA renewal, a cancellation, a new carrier. Every certificate already issued is now wrong, and nobody is told unless the policy carries a notice endorsement.

What a certificate contains

The insured's name and address, the producing agency, each policy with carrier, policy number, effective and expiration dates and limits, a description of operations box for project or contract details, the holder's name and address, and a disclaimer that the certificate is informational only. Checkboxes indicate whether additional insured status or a waiver of subrogation applies, and the forms providing them should be listed in the description.

What it cannot do

It cannot add coverage, extend a policy, change a limit, or promise notice of cancellation beyond what the policy itself provides. A holder relying on a certificate alone is relying on a snapshot that may already be out of date.

Why holders keep asking

Because every certificate expires with the policy on it. A business with four policies and twelve holders produces dozens of certificate requests a year, each one a small emergency for whoever runs the office. Compliance software on the holder's side makes the requests automatic and the pauses immediate.

The live alternative

A live certificate replaces the snapshot with a page. The holder opens a private link, sees the current table of coverage and their own status, presses Verify when they want to, and downloads a PDF if their process needs a file. When a line changes, the page changes and the holder is notified. The certificate request becomes a one-time share instead of an annual chore.

Getting one from the wallet

Add the holder, tick the endorsements their contract asks for, and send the link. Standard holders issue instantly. Endorsement requests are approved on the spot when your policy forms carry a blanket endorsement; otherwise the carrier is asked and the page shows the status until it arrives.

Questions people actually ask

Does a certificate give the holder any coverage?

No. The certificate says so in its own disclaimer. Coverage for a holder comes only from an endorsement on the policy, such as additional insured status, which the certificate can reference but not create.

How long does a certificate take?

From an agency, hours to days depending on the request. From a wallet that already holds the policies, seconds for standard holders, and endorsements are approved instantly when the policy carries a blanket form.

What is a live certificate?

A private web page for a holder that shows your current coverage, checked against the agency's records when it is opened, with a PDF download. It updates when a policy changes and tells the holder, which is the thing a paper certificate cannot do.

Can I write my own certificate?

Certificates are issued by the agency or carrier. Altering one is fraud in most states. The fix for slow certificates is a faster process, not a home-made form.