A certificate of insurance (COI) is a one-page document issued by your insurance broker or carrier that summarizes your active policy coverages, limits, and effective dates. Most businesses can receive a COI by email within minutes to a few hours of requesting one. Who this is for: contractors, service businesses, vendors, and any commercial policyholder required to show proof of insurance before starting work.
TL;DR — Key Takeaways
- A COI is a summary document, not the actual policy; it does not change or extend your coverage.
- The standard form in the US is ACORD 25 for liability policies and ACORD 28 for commercial property.
- Turnaround is typically same-day or faster — often within 15–60 minutes through a responsive broker.
- You can name a client, general contractor, or property owner as an additional insured on the COI, but that endorsement must be added to the underlying policy first.
- COIs expire when the underlying policy expires; you must request a new one each renewal cycle.
What Exactly Is a Certificate of Insurance?
A certificate of insurance (COI) — sometimes called a "cert" or "proof of insurance" — is a standardized, one-page summary issued by your insurance broker or carrier on your behalf. It lists:
| Field on the COI | What It Shows |
|---|---|
| Named insured | Your legal business name |
| Insurer(s) | Carrier name(s) and NAIC number(s) |
| Policy numbers | One line per active policy |
| Coverage types | GL, Auto, Workers Comp, Umbrella, etc. |
| Per-occurrence / aggregate limits | Dollar limits for each coverage line |
| Effective and expiration dates | Policy period for each line |
| Certificate holder | The party requesting the COI |
| Additional insured (if applicable) | Third party added to the policy by endorsement |
| Waiver of subrogation (if applicable) | Indicated when endorsed onto the policy |
The most common form is ACORD 25 (Certificate of Liability Insurance). If a client or contract requires proof of commercial property coverage, the form used is ACORD 28 (Evidence of Commercial Property Insurance).
Critical distinction: A COI is evidence of insurance — it is not the policy itself. The certificate holder cannot make a claim against the COI; they can only verify that coverage exists. Changes to limits, additional insureds, or waivers of subrogation require an endorsement on the actual policy, not just a note on the certificate.
What Is the Difference Between a Certificate Holder and an Additional Insured?
These two terms appear on the same document but carry very different legal weight:
| Term | What It Means | Can File a Claim? |
|---|---|---|
| Certificate holder | Receives a copy of the COI; is notified if the policy is cancelled | No — certificate holders have no coverage rights |
| Additional insured | Added to your liability policy by endorsement; has direct coverage rights for their own liability arising from your operations | Yes — they can tender claims directly to your insurer |
Contracts on commercial construction jobs, commercial leases, and vendor agreements routinely require both: the client wants to be listed as an additional insured and receive the COI as certificate holder. Your broker must add the AI endorsement (e.g., ISO CG 20 10 or CG 20 37 for ongoing/completed operations) to the policy before issuing the COI — it is not enough to simply type a name in the certificate holder box.
How Fast Can You Get a Certificate of Insurance?
Speed depends almost entirely on your broker's processes and whether the underlying policy is already bound.
Typical COI turnaround times
| Scenario | Expected Turnaround |
|---|---|
| Policy already bound; no endorsements needed | 15 minutes to 2 hours (often automated) |
| Policy bound; standard AI endorsement required | Same day, usually 1–4 hours |
| Policy bound; custom/manuscript AI wording required | 24–48 hours (carrier must review) |
| New policy not yet bound | Turnaround = time to bind + certificate time |
| Carrier requires underwriter approval for AI | 1–5 business days |
Brokers who use agency management platforms (like Applied Epic, HawkSoft, or EZLynx) can often generate and email a COI in minutes once the policy is active and no non-standard endorsements are needed.
How to Request a Certificate of Insurance in 5 Steps
- Identify what is required. Read the contract or request carefully. Note the required limits, endorsement types (additional insured, waiver of subrogation, primary and non-contributory language), and any specific ISO form numbers requested.
- Contact your broker. Email or call your broker with the certificate holder's full legal name, address, and any special wording. Attach the contract section or sample certificate if available.
- Confirm endorsements are already on the policy. If the AI endorsement or waiver of subrogation is not already endorsed, your broker must order it from the carrier before issuing the COI.
- Review the draft COI. Verify the named insured matches your legal business name, limits meet the contract minimums, effective dates are correct, and the certificate holder name is spelled exactly as required.
- Distribute the COI. Send it directly to the requesting party, or authorize your broker to send it on your behalf.
Real-World Example: Commercial Painting Subcontractor in Texas
Illustrative example — not a guarantee of coverage terms or cost.
A commercial painting subcontractor in Dallas, TX, is hired by a general contractor to repaint a 20,000 sq ft warehouse. The subcontract requires:
- General Liability: $1,000,000 per occurrence / $2,000,000 aggregate
- Additional Insured: General Contractor and Property Owner on an ongoing and completed operations basis (ISO CG 20 10 04 13 + CG 20 37 04 13)
- Waiver of Subrogation on GL and Workers Comp
- Primary and Non-Contributory language
- Workers Compensation: Statutory limits / $1,000,000 EL
- 30-day cancellation notice to certificate holder
The painting sub contacts their Morrow broker on Monday morning. The GL policy already carries a blanket additional insured endorsement with primary/non-contributory language and a blanket waiver of subrogation — a common setup for subcontractors in the trades. Because these endorsements are already on the policy, the broker generates the ACORD 25 and emails it to the GC within 45 minutes. No underwriter approval is needed. If the blanket endorsements had not been in place, the broker would have needed to submit an endorsement request to the carrier, potentially adding 24–48 hours.
Estimated annual GL premium for a painting sub of this size in Texas: $4,500–$9,000, depending on payroll, revenue, prior losses, and specific carrier appetite. Workers Comp premium is separately rated on payroll using the NCCI classification system (Class 5474, Painting NOC, covers building painting — interior and exterior). [Verify current NCCI class codes and rates with your broker.]
FAQ
Q: Does a certificate of insurance prove I have coverage? A certificate of insurance is strong evidence that a policy existed as of the issue date, but it is not the policy itself. The actual policy language controls what is and is not covered. Courts have held in many jurisdictions that a COI does not create coverage that does not exist in the underlying policy.
Q: Can I get a COI before my policy is bound? No. A broker cannot legally issue a COI for coverage that is not yet in force. If you need a COI by a specific start date, your policy must be bound before that date.
Q: What does "primary and non-contributory" mean on a COI? It means your policy is primary (responds first) with respect to losses arising from your operations, and your insurer will not seek contribution from the additional insured's own liability insurance. This language must be in a policy endorsement — it cannot be added to the certificate alone.
Q: How long is a certificate of insurance valid? A COI is valid for the policy period shown on the certificate. When your policy renews, you must request a new COI showing the new policy period and updated policy numbers.
Q: Can my client change what is on my certificate? No. Under ACORD's own guidelines and most state regulations, certificate holders cannot alter, amend, or extend the coverage shown on a COI. Only your broker or insurer can issue or modify a certificate. Fraudulently altering a COI is a crime in most states.
Q: Do I need a new COI for every job? Not always. Many contractors keep a standard COI on file for recurring clients. However, if a contract requires a specific additional insured, project-specific wording, or limits higher than your standard policy, you will need a new or modified certificate for that engagement.
Q: What if my client requires limits higher than what I carry? You would need to increase your policy limits or purchase a commercial umbrella or excess liability policy to close the gap. Your broker can bind the higher limits and then issue the updated COI.
Q: Can my broker email a COI directly to a third party? Yes. It is standard practice for brokers to email the certificate directly to the requesting party on your behalf, especially in construction and vendor-management workflows.
Why Morrow for COI Turnaround and Commercial Insurance
- Independent agency, multiple carrier relationships. Morrow places coverage with a broad panel of admitted and surplus lines carriers, which means we can build a policy with blanket AI and waiver of subrogation language from the start — so COIs go out fast, without chasing individual endorsements for each job.
- Same-day certificates for standard requests. For policies already bound with appropriate endorsements, Morrow's team targets same-day certificate turnaround, often within the hour on business days.
- Trade and contractor specialization. We understand subcontractor insurance requirements — additional insured hierarchies, completed-operations exposures, wrap-up exclusions, and certificate-holder notification clauses — so we set up policies correctly the first time.
- Proactive renewal management. We alert clients ahead of policy expiration so COIs never lapse mid-project due to a missed renewal.
- Real claims advocacy. When a claim involves an additional insured or a waiver of subrogation, we work with your carrier to ensure the endorsement language holds up and the claim is handled correctly.
Get Your Certificate of Insurance Today
Need a COI fast? Request a certificate or get a quote from Morrow — we respond same business day.
Trust strip: Morrow (Afthonea Inc, DBA Morrow) is a licensed independent commercial insurance agency [Morrow to confirm: licensed states and license numbers]. We place coverage with A-rated admitted and non-admitted carriers. [Morrow to confirm: Google/BBB review rating and link.]
Related Resources
- Commercial General Liability Insurance: What It Covers and What It Costs
- Additional Insured Endorsements Explained
- How Much Does a Business Owner's Policy Cost?
- General Contractor Insurance Requirements
- Waiver of Subrogation: What It Is and When You Need It
Author: [Morrow to confirm: licensed P&C producer name and credentials, e.g., "Jane Smith, CPCU, Commercial Lines Producer, licensed in [states]"] Published: June 2026 | Last updated: June 2026
Sources: - ACORD (Association for Cooperative Operations Research and Development) — ACORD 25 and ACORD 28 certificate forms - National Association of Insurance Commissioners (NAIC) — Model Certificate of Insurance Disclosure Act guidance - National Council on Compensation Insurance (NCCI) — Workers Compensation class code system - Insurance Information Institute (III) — Commercial insurance coverage guides - ISO (Insurance Services Office) — Standard additional insured endorsement forms CG 20 10, CG 20 37 - State insurance department regulations (varies by state) [verify applicable state DOI for jurisdiction-specific rules]