COI Guide — Updated July 2026
Certificate of Insurance
for Contractors:
Requirements & How to Get One
Learn what a contractor COI shows, what it does not change, why clients may reject it, and what information to send your insurer or broker when requesting proof of coverage.
How To Get One Fast ↓
Common Mistakes
A client or general contractor may delay the start of work when the certificate does not match the insurance requirements in the contract. That does not necessarily mean the contractor has no insurance; the issue may be an incorrect entity name, insufficient limits, missing coverage, expired dates, or an endorsement that has not been added to the underlying policy.
Understanding the information shown on the certificate—and checking it against the contract before submission—can reduce avoidable back-and-forth. The requesting party’s exact review process and requirements may vary.
This guide breaks down the certificate itself, the additional insured endorsement that trips up more contractors than any other single item, and a request template you can reuse every time a new GC asks for proof.
What a COI Actually Is (and Isn’t)
A certificate of insurance is commonly issued by an insurer, broker, or authorized representative as evidence of insurance on the date shown. ACORD 25 is a widely used certificate form for commercial liability insurance in the US, although the form and process can vary.
The name and address of whoever is requesting proof — usually the GC, property owner, or property manager. This must match exactly, down to the legal entity name.
Your business name, exactly as it appears on your policy. A mismatch with your contract or license name is a common, easily-missed rejection point.
A grid of policy types (GL, auto, umbrella, workers’ comp) with per-occurrence and aggregate limits. This is the first thing compliance teams scan against the contract’s minimums.
Every line item has its own effective and expiration date. A certificate that expires mid-project without a renewal on file is an automatic red flag.
A checkbox plus a description field confirming the certificate holder has been added to your policy as an additional insured — not just listed as the recipient of the paper.
Free-text field naming the specific project or address the coverage applies to. GCs on multi-site programs check this line closely.
Nothing on the certificate itself creates coverage. If the underlying policy lapses, gets cancelled, or never actually included the endorsement the box claims, the certificate is worth exactly nothing when a claim is filed. That gap is precisely why additional insured status has to live on the policy — not just on the paper.
Why GCs Reject Certificates (and Pull Contractors Off Site)
A general contractor’s insurance compliance process exists to protect their own liability exposure, not to slow you down on purpose. But from the field, a rejected COI feels identical to a stop-work order — because it often is one.
The practical consequence depends on the contract and project. A client may delay site access, onboarding, payment processing, or the start of work until the requested evidence and endorsements are accepted.
- Site access — many commercial sites won’t issue a badge or gate pass without a cleared COI on file
- Payment holds — some GC contracts explicitly tie the first invoice release to insurance compliance sign-off
- Preferred vendor status — repeated compliance issues are one of the fastest ways to get quietly dropped from a GC’s sub list
How to Get a Certificate of Insurance — Fast
The path to a clean COI looks different depending on whether your carrier is digital-first or agent-based. Either way, the steps are the same in substance.
Get the Exact Requirements First
Ask the GC or property manager for their insurance requirement sheet before requesting anything — it names the exact limits, the endorsement wording they want, and the legal entity name to list as certificate holder.
Confirm Your Policy Actually Meets Them
Don’t just request the certificate — check that your GL limits, and any commercial auto or umbrella requirement, actually meet or exceed what’s being asked for. A certificate can’t manufacture coverage that isn’t underwritten.
Request the Additional Insured Endorsement
This is a separate ask from the certificate itself. Tell your carrier or broker explicitly that you need the certificate holder added as an additional insured on the policy, not just named on the paper.
Generate or Request the Certificate
With a digital carrier, this is usually self-serve through an app or portal. With an agent-based carrier, send a written request — email, not a phone call — so there’s a timestamp and a record of exactly what you asked for.
Check It Against the Requirement Sheet Before Sending
Compare every field — holder name, limits, dates, additional insured box, description of operations — against the requirement sheet from step 1 before it goes to the GC. Catching a typo yourself is faster than a rejection cycle.
How COI Delivery May Differ by Service Model
Delivery time depends on the insurer or broker, the status of the policy, the requested certificate information, and whether endorsements or underwriting review are required. The service model is one factor, not a guarantee.
| Carrier Type | Possible Delivery Pattern | Self-Serve? | Endorsement Review? | Best For |
|---|---|---|---|---|
| Digital-first (app/portal) | Portal access may be immediate | Often | May still apply | Fast-moving solo & small crew work |
| Broker-backed digital | Online request with human support | Sometimes | Depends on request | Small-to-mid crews wanting a human backup |
| Traditional agent/broker | Handled by an agent or service team | Usually not | Often | Bundled multi-line commercial programs |
| Specialty/high-risk program | May require additional review | Usually not | Often | Roofing, demo, and other high-hazard trades |
* These are general service patterns, not delivery commitments. Confirm current processing time and endorsement requirements directly with the insurer or broker.
Additional Insured Endorsements, Explained Simply
An additional insured endorsement extends part of your liability policy to protect another party — typically the GC or property owner — for claims arising specifically from your work on their project. It does not make them a co-owner of your policy; it’s scoped narrowly to your operations on that job.
A frequent source of confusion is that being listed as the certificate holder is not the same as being an additional insured. A certificate holder receives evidence of insurance; additional insured status, when provided, must come from the policy and applicable endorsement. Whether a GC requires that status depends on the contract.
Common COI Mistakes That Get Contractors Rejected
Listing a DBA when the contract requires the registered LLC name (or vice versa) is one of the most common auto-rejections in compliance software.
A $1M/$2M policy on a contract requiring $2M/$4M won’t pass, even if every other field is correct.
The GC’s name appears as certificate holder but was never actually added as an additional insured on the policy itself.
A policy that expires before the project’s expected completion date, with no renewal certificate queued up in advance.
Some contracts require this specific waiver in addition to additional insured status — it has to be requested separately from most carriers.
On multi-site GC programs, a blank or generic description field can get a certificate flagged for the wrong project entirely.
COI Requirements Vary by Project Type
Not every job asks for the same paperwork. What a homeowner expects is very different from what a bonded government project requires.
| Project Type | Typical GL Minimum | Add’l Insured Required | Waiver of Subrogation | Renewal Tracking |
|---|---|---|---|---|
| Residential homeowner | $500K–$1M | Rarely | Rarely | Informal |
| GC subcontract work | $1M/$2M | Commonly requested | Contract-specific | Compliance software |
| Commercial property mgmt | $1M–$2M/$4M | Yes | Often | Compliance software |
| Government / bonded work | $2M/$4M+ | Yes | Yes | Formal, audited annually |
* Ranges are general market patterns — always confirm exact minimums against your specific contract’s insurance requirements exhibit.
A Reusable COI Request Template
Sending a written, specific request to your broker or carrier — instead of a vague phone call — is the single fastest way to get a compliant certificate back on the first try.
Hi [Broker/Carrier Contact],
Please issue a certificate of insurance for the project below:
— Certificate holder (exact legal name): [GC/Owner legal entity name]
— Certificate holder address: [address]
— Additional insured status required: Yes, per attached contract clause
— Waiver of subrogation required: [Yes/No]
— Description of operations: [Project name/address, scope of work]
— Required limits: [GL / Auto / Umbrella limits from requirement sheet]
Please confirm the additional insured endorsement is applied to the policy itself, not only listed on the certificate. Attached is the GC’s insurance requirement sheet for reference.
Frequently Asked Questions
A COI is a one-page summary document, usually on the standard ACORD 25 form, that proves you carry active insurance coverage. It lists your insurer, policy numbers, coverage limits, and effective dates — but it is not the policy itself and carries no coverage on its own. If the underlying policy is cancelled, the certificate becomes meaningless even if it hasn’t reached its printed expiration date.
Timing depends on the insurer or broker, the policy’s status, and the requested certificate details. Some eligible customers can access a standard certificate through an online portal, while additional insured or other customized requests may require manual review. Confirm the expected delivery time directly before committing to a job-start deadline.
The most common reasons are a missing additional insured endorsement (being listed only as certificate holder isn’t the same thing), coverage limits below what the contract requires, a policy expiring before the project ends, or a certificate holder name that doesn’t exactly match the requesting entity’s legal name on file.
No. A COI is only evidence that a policy existed at the time it was issued. It is not a contract and does not by itself grant any rights to the certificate holder — the underlying policy, and specifically any endorsement actually attached to it, is what determines whether a claim is covered.
A certificate holder simply receives a copy of the certificate for their records — it’s an address, not a coverage right. An additional insured has been formally endorsed onto the policy and has actual protection under it for claims arising from your work on that specific project. Most GC contracts require the latter, and it has to be requested from your carrier separately from just generating a certificate.
A client may require a certificate showing its exact legal name, address, project details, or other information, so a separate certificate is often requested. Do not assume an older certificate will satisfy a new contract; confirm the requirements with the requesting party and your insurer or broker.
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