How to read a contractor's certificate of insurance

A certificate of insurance (COI) is a one-page summary of a contractor's policies — usually an ACORD 25 form. It lists the insurer, policy numbers, coverage types, limits, and expiration dates. It is evidence that coverage existed on the date it was issued; it is not the policy itself and it does not guarantee the policy is still in force today.

Last updated August 19, 2026

The fields that actually matter

Insured
The legal business name covered by the policy. It should match the business you are hiring — not a parent company, a personal name, or a different DBA.
Insurer / carrier
The company that issued the policy. You can confirm a carrier is licensed in your state through your state's department of insurance.
Policy number and policy period
The effective and expiration dates define the window of coverage. A certificate issued last year tells you nothing about today.
Commercial general liability
Covers third-party bodily injury and property damage. Certificates typically show both a per-occurrence limit and a general aggregate limit for the whole policy period.
Workers' compensation
Covers injuries to the contractor's employees. Requirements vary by state and by employee count; a sole proprietor may be legally exempt.
Commercial auto
Covers vehicles used for the business. Relevant when work involves hauling, towing, or parking equipment at your property.
Certificate holder
Who the certificate was issued to. This is informational; being listed as certificate holder does not give you rights under the policy.
Additional insured
A policy endorsement that extends certain protections to another party. A checkbox on a certificate does not create it — the endorsement itself does.

How to confirm a certificate is real and current

  1. Ask for the certificate to be sent directly from the insurance agency named on it, not forwarded as a scan.
  2. Check the expiration date against the dates your work is scheduled — including any likely delay.
  3. Confirm the insured name matches the entity named on your contract and invoice.
  4. Call the agent or carrier listed on the form to confirm the policy is in force. The producer's phone number is on the certificate.
  5. If your job warrants it, ask to be added as an additional insured and request a copy of the endorsement, not just an updated checkbox.

Common red flags

  • The insured name does not match the business you are hiring.
  • The policy period has already ended, or ends before your project would finish.
  • No producer contact details, or a contact number that goes to the contractor rather than an agency.
  • Refusal to have the agency send the certificate directly.
  • Handwritten edits, mismatched fonts, or a form that will not open as a clean PDF.

How Kuldesac uses certificates

Every published Kuldesac business submits a certificate of insurance during verification. Our team reviews the carrier, policy identifier, and expiration date, and the expiration is tracked so a lapse gets flagged. We do not ask to be named as an additional insured, and we do not evaluate whether the limits are right for your particular job — that judgment stays with you.

Is a certificate proof I am covered?

No. It is proof a policy existed when the certificate was issued. It does not name you as a beneficiary unless a separate additional-insured endorsement says so.

What limits should I ask for?

It depends on the size and risk of the work, and there is no universal number. Compare the per-occurrence limit against the realistic worst-case damage to your property, and ask the contractor's agent what is standard for that trade in your state.

The contractor is a sole proprietor with no workers' comp. Is that legal?

Often yes — many states exempt owners with no employees. Confirm the rule with your state's workers' compensation agency, and understand who is responsible if someone is injured on your property.

Sources

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