Quick Answer: A Certificate of Insurance (COI) is a one-page document proving you have active coverage. Many carriers issue COIs same-day or instantly through online portals. Get insured and receive your COI today →
A certificate of insurance is one of the most commonly requested business documents in America — and one of the least understood. Whether a landlord, client, or general contractor is asking for your COI, this guide covers exactly what it is, what every field means, and how to get one fast.
Table of Contents
- What Is a Certificate of Insurance?
- How to Read a Certificate of Insurance
- Certificate Holder vs Additional Insured
- Who Needs a COI and When
- COI Requirements by Industry
- How to Get a COI Same Day
- Common COI Mistakes That Can Void Your Coverage
- COI Tracking and Management
- FAQ
What Is a Certificate of Insurance?
A Certificate of Insurance (COI) is a standardized one-page document — typically an ACORD 25 form — that summarizes your insurance coverage. It includes your policy numbers, coverage types, limits, effective dates, and the insurance carrier's contact information.
A COI is not the insurance policy itself. It's a snapshot that proves you have coverage in force at the time the certificate is issued. It doesn't modify your policy or grant any additional rights to the person requesting it.
Why COIs Exist
COIs solve a practical problem: businesses need a quick, standardized way to verify that their vendors, tenants, and contractors carry adequate insurance. Without COIs, every verification would require sharing full policy documents — which are typically 30–100 pages long.
Who Issues COIs
Your insurance carrier or agent issues COIs on your behalf. You don't create them yourself. Most modern carriers provide self-service COI portals where you can generate and email certificates in minutes.
How Long Is a COI Valid?
A COI is valid for the policy period listed on the certificate (typically one year). However, the certificate itself is a point-in-time document — it confirms coverage as of the date issued. If your policy is cancelled or lapses after the COI is issued, the certificate becomes void even if the expiration date hasn't passed.
Many clients and landlords require annual COI renewals — you'll need to send a new certificate each time your policy renews.
→ Get insured and receive your COI same-day
How to Read a Certificate of Insurance
The standard ACORD 25 certificate has several sections. Here's what each field means:
Header Section
| Field | What It Shows | Example |
|---|---|---|
| Certificate Holder | The person/company who requested the certificate | "ABC Property Management, LLC" |
| Insured | Your business name (the policyholder) | "Smith Consulting, LLC" |
| Producer | Your insurance agent or broker | "Insura Insurance Services" |
| Date | When the certificate was issued | "04/10/2026" |
Coverage Section
The main body lists each type of coverage you carry:
| Column | What It Shows |
|---|---|
| Type of Insurance | The coverage category (Commercial General Liability, Auto, Umbrella, Workers Comp) |
| Policy Number | Your unique policy number for that coverage |
| Policy Effective Date | When coverage started |
| Policy Expiration Date | When coverage ends |
| Limits | The maximum amount the insurer will pay per occurrence and in aggregate |
Common Limit Fields Explained
For General Liability:
- Each Occurrence: Maximum payout for a single claim (typically $1M)
- General Aggregate: Maximum total payouts for the policy period (typically $2M)
- Products/Completed Operations Aggregate: Maximum for product liability or post-project claims
- Personal & Advertising Injury: Maximum for defamation, libel, or advertising claims
- Damage to Rented Premises: Maximum for damage to property you're renting (typically $100K–$300K)
- Medical Expenses: Maximum for minor medical payments without a lawsuit (typically $5K–$10K)
For Workers Compensation:
- WC Statutory Limits: Coverage meets your state's legal requirements
- EL Each Accident: Employer's liability per accident (typically $500K–$1M)
- EL Disease - Each Employee: Per-employee disease limit
- EL Disease - Policy Limit: Aggregate disease limit
Description of Operations Box
This free-text section at the bottom contains important details:
- Project-specific language ("Coverage applies to work performed at 123 Main St")
- Additional insured status ("ABC Property Management is included as additional insured")
- Waiver of subrogation notes
- Special endorsements or conditions
This box is where most COI disputes arise — always read it carefully and make sure it matches what was agreed in your contract.
Certificate Holder vs Additional Insured: The Critical Difference
This is the most commonly confused aspect of COIs, and getting it wrong can create serious coverage gaps.
Certificate Holder
A certificate holder simply receives a copy of your COI. It proves you have insurance but grants them no coverage under your policy.
What a certificate holder gets:
- Proof that you carry insurance
- Notification if your policy is cancelled (in some cases)
What a certificate holder does NOT get:
- Coverage under your policy
- The right to file a claim on your policy
- Protection from lawsuits arising from your work
Additional Insured
An additional insured is a person or entity added to your policy who receives coverage protection as if they were a named insured. This is a much stronger protection than being a certificate holder.
What an additional insured gets:
- Coverage under your GL policy for claims arising from your work
- The right to file a claim on your policy for incidents related to your operations
- Defense costs covered by your insurer
When to Use Each
| Situation | Certificate Holder | Additional Insured |
|---|---|---|
| Landlord requiring proof of tenant insurance | Sometimes | Usually required |
| Client hiring you as a contractor | ✅ | Often required |
| General contractor hiring a subcontractor | ✅ | Almost always required |
| Vendor at an event | ✅ | Usually required by venue |
| Bank or lender requiring proof | ✅ | Rarely |
| Licensing authority | ✅ | Rarely |
How to Add an Additional Insured
Contact your insurance carrier or agent and request an "additional insured endorsement." You'll need:
- The exact legal name of the entity to add
- Their mailing address
- The relationship (landlord, client, general contractor)
- Any specific contract language they require
Most carriers add additional insureds at no extra cost on GL policies. Some charge $25–$50 per endorsement. The endorsement is typically issued within 24 hours.
→ Get a policy with same-day additional insured endorsements
Who Needs a COI and When
You'll Be Asked for a COI When...
Signing a commercial lease: Virtually every landlord requires tenants to provide a COI showing GL coverage with the landlord named as additional insured. Most require $1M per occurrence / $2M aggregate minimum.
Bidding on contracts: Enterprise clients, government agencies, and general contractors require COIs as part of the proposal process. No COI = no bid.
Starting a new client engagement: Many B2B clients require proof of E&O and GL coverage before the first invoice is paid.
Working as a subcontractor: General contractors require subs to provide COIs showing GL, workers comp, and auto coverage before stepping on the job site.
Attending events or markets: Event venues, farmers markets, and trade shows require vendor COIs.
Obtaining permits: Some states and municipalities require proof of insurance for certain business licenses and permits.
Getting financing: Banks and lenders may require proof of property and liability insurance for business loans.
How Often COIs Need Updating
- Annual renewal: Send updated COIs when your policy renews each year
- Policy changes: If you increase limits, add coverage, or change carriers, send updated COIs
- New projects: Some contracts require project-specific COIs
- On request: Certificate holders can request updated certificates at any time
COI Requirements by Industry
Construction and Trades
The most demanding COI requirements of any industry:
| Requirement | Typical Minimum |
|---|---|
| General Liability | $1M/$2M (some require $2M/$4M) |
| Workers Compensation | Statutory limits |
| Commercial Auto | $1M combined single limit |
| Umbrella/Excess | $1M–$5M depending on project size |
| Professional Liability | $1M (for engineers, architects) |
| Additional Insured | GC and property owner |
| Waiver of Subrogation | Almost always required |
Commercial Real Estate / Leasing
| Requirement | Typical Minimum |
|---|---|
| General Liability | $1M/$2M |
| Property Insurance | Replacement cost of your contents |
| Additional Insured | Landlord and property manager |
| Damage to Rented Premises | $100K–$300K |
| Workers Comp | If you have employees |
Events and Hospitality
| Requirement | Typical Minimum |
|---|---|
| General Liability | $1M/$2M |
| Liquor Liability | $1M (if serving alcohol) |
| Additional Insured | Venue owner |
| Event-specific coverage | Sometimes required as a separate policy |
Professional Services / Consulting
| Requirement | Typical Minimum |
|---|---|
| Professional Liability (E&O) | $1M/$2M |
| General Liability | $1M/$2M |
| Cyber Liability | $1M (increasingly required) |
| Additional Insured | Client company |
Freelancing and Gig Work
| Requirement | Typical Minimum |
|---|---|
| General Liability | $1M/$2M |
| Professional Liability | $1M (for service-based freelancers) |
| Additional Insured | Client or platform |
How to Get a COI Same Day
Step 1: Get Insured (If You're Not Already)
You can't get a COI without an active insurance policy. If you don't have coverage yet:
- Get quotes from multiple carriers through a marketplace like Insura
- Compare coverage and pricing side-by-side
- Bind coverage — most carriers offer same-day binding
- Generate your COI immediately after binding
The entire process — from quote to COI in hand — can take under an hour with carriers like Hartford, Hiscox, and Next Insurance.
Step 2: Generate the Certificate
If you already have insurance:
Most carriers provide self-service COI portals:
- Hartford: Log into your account → Certificates → Generate New
- Hiscox: Dashboard → Manage Policy → Certificate of Insurance
- Next Insurance: App or website → Certificates → Create Certificate
You'll need to enter:
- Certificate holder name and address
- Whether they should be listed as additional insured
- Any special wording for the description of operations
Step 3: Deliver the Certificate
COIs are typically delivered as PDF attachments via email. Most carrier portals let you email the certificate directly from their system, or you can download the PDF and send it yourself.
Pro tip: Save your most-requested certificate holders in your carrier's portal so you can regenerate certificates instantly at renewal time.
→ Get insured and receive your COI in under an hour
Common COI Mistakes That Can Void Your Coverage
1. Listing the Wrong Entity Name
The certificate holder and additional insured names must match the exact legal entity name in the contract. "ABC Properties" is not the same as "ABC Properties, LLC" or "ABC Property Management Inc." A wrong name can void the additional insured status.
2. Not Requesting Additional Insured When Required
If your contract requires additional insured status but your COI only lists them as a certificate holder, you haven't met the contract requirements. The other party has no coverage under your policy. This is the most common and most dangerous COI mistake.
3. Letting Coverage Lapse After Issuing a COI
A COI is only valid while your policy is active. If you cancel your policy or let it lapse, every outstanding COI becomes void — even if the expiration date hasn't passed. This can put you in breach of contracts and leases.
4. Assuming the COI Modifies Your Policy
A COI is an informational document — it cannot change your policy terms, add coverage, or increase limits. If your COI states $2M in GL coverage but your policy only has $1M, the policy controls. The COI is wrong, not your coverage.
5. Not Updating COIs After Policy Changes
If you change carriers, increase limits, or modify coverage, existing COIs become inaccurate. Send updated certificates to all active certificate holders whenever your policy changes.
6. Ignoring the Waiver of Subrogation Requirement
Many contracts require a "waiver of subrogation" — meaning your insurer agrees not to sue the certificate holder to recover claim payments. This must be added as a policy endorsement. Simply writing it on the COI doesn't make it enforceable.
COI Tracking and Management
As your business grows, managing COIs becomes more complex. You may need to track dozens of certificates for different clients, landlords, and contractors.
Manual Tracking (Small Businesses)
For businesses with fewer than 10 active COIs:
- Keep a spreadsheet tracking certificate holder, policy, expiration date, and renewal reminder
- Set calendar reminders 30 days before each certificate expires
- Store PDF copies in a dedicated folder
Automated Tracking (Growing Businesses)
For businesses managing 10+ COIs:
- Carrier portals — Hartford and Hiscox track issued certificates and send renewal reminders
- COI management software — Tools like myCOI, PINS, or CertificateManager automate tracking
- Broker services — Your insurance broker can manage COI issuance and renewals
What to Do When a Certificate Holder Rejects Your COI
If a client or landlord rejects your COI, it's usually because:
- Limits are too low — you need to increase coverage or add an umbrella policy
- Missing additional insured — contact your carrier to add the endorsement
- Wrong entity name — regenerate with the correct legal name
- Missing waiver of subrogation — contact your carrier to add the endorsement
- Missing coverage type — you may need to add a policy (e.g., adding cyber or auto)
Don't panic — most rejections are resolved within 24–48 hours by contacting your carrier.
Frequently Asked Questions
What is a certificate of insurance (COI)?
A COI is a standardized one-page document (ACORD 25 form) that proves you have active insurance coverage. It lists your policy numbers, coverage types, limits, and dates. It's the most commonly requested business document for leases, contracts, and vendor agreements.
How do I get a certificate of insurance?
Your insurance carrier issues COIs on your behalf. Most carriers (Hartford, Hiscox, Next Insurance) provide self-service online portals where you can generate certificates in minutes. If you don't have insurance yet, you can get a policy and COI on the same day.
How much does a COI cost?
Certificates of insurance are free — they're included with your insurance policy. Generating, emailing, and regenerating certificates costs nothing. The only cost is the insurance policy itself.
Is a certificate holder the same as additional insured?
No — and this is a critical distinction. A certificate holder simply receives proof that you have insurance. An additional insured is actually covered under your policy for claims arising from your work. Most contracts that require a COI also require additional insured status.
How long does it take to get a COI?
If you already have insurance, you can generate a COI in 5–10 minutes through your carrier's online portal. If you need to get insured first, the entire process (quote → bind → COI) takes under an hour with most carriers.
Do I need a new COI every year?
Yes. COIs are valid for the policy period listed on the certificate (typically one year). When your policy renews, you need to send updated certificates to all active certificate holders with the new policy dates.
Can I create my own COI?
No. COIs must be issued by your insurance carrier or authorized agent. Self-created certificates are not valid and may constitute insurance fraud. Your carrier's portal generates standardized ACORD 25 forms.
What if my client requires higher limits than my policy provides?
You have three options: (1) increase your policy limits, (2) purchase an umbrella/excess liability policy that sits on top of your existing coverage, or (3) negotiate the contract requirements. Option 2 is usually the most cost-effective.
What is a waiver of subrogation?
A waiver of subrogation is an endorsement that prevents your insurance carrier from suing the certificate holder to recover claim payments. Many contracts require it. It must be added to your policy by your carrier — simply noting it on the COI is not sufficient.
Can a COI be revoked?
COIs don't get "revoked," but they become void if your underlying insurance policy is cancelled or lapses. Some carriers will automatically notify certificate holders if your policy is cancelled, but this notification is not guaranteed.
Need a COI for a client, landlord, or contract? Get insured and receive your certificate same-day — get your free quote.