How to Request COI from Vendors: Complete Guide 2026

Many businesses lose money on 3rd party related claims because they request certificates of insurance incorrectly or forget to track renewals that leave them exposed when accidents happen. Requesting a certificate of insurance from vendors and contractors protects your business from liability claims and prevents work stoppages that can cost thousands, as well as delays when coverage problems arise mid-project.

This guide shows you exactly how to request certificates of insurance that protect your business and how to verify that submitted COIs provide real protection. CertFocus by Vertikal RMS is a COI tracking software that automatically requests COIs from vendors and monitors renewals with minimal input from your staff.

What is a Certificate of Insurance for Vendors and Why Do You Need One?

A certificate of insurance for vendors is a document that serves as evidence that your contractors, suppliers, and service providers have active insurance coverage that meets your requirements before they start work on your property or projects. This one-page document summarizes key points like:

• Coverage types
• Limits
• Effective dates
• Additional insured parties

COIs serve as evidence that insurance coverage exists, but they’re not insurance policies themselves and don’t guarantee coverage will respond to claims. They’re like receipts that serve as evidence that a subcontractor or vendor bought insurance.

The main purpose of requiring a vendor COI is to shift liability for accidents and damages from your business to the vendor’s insurance company. When your cleaning company accidentally damages expensive equipment or your contractor’s employee gets injured on your property, their insurance should handle the claims instead of your business paying out of pocket. This protection is especially important when you consider that 2.6 million workplace injuries happen every year, with the average workplace injury with medical consultations costing $43,000.

Almost every contract and project now requires vendors to have insurance with specific coverage amounts and endorsements, so collecting COIs isn’t optional anymore. Government jobs, commercial leases, and big construction projects all demand proof of insurance before vendors can start work, and missing this documentation can kill contracts or stop projects completely.

You need vendor COIs because uninsured mistakes can bankrupt your business through liability claims and property damage that costs hundreds of thousands or even millions. A single fatal workplace injury costs $1,460,000 on average, so verifying that your vendors have the right insurance protects you from these disasters that can destroy unprepared companies.

When Should You Request a COI from Vendors?

You should request certificates of insurance before vendors start any work and whenever policies expire to avoid coverage gaps that could make your company liable for their mistakes. Don’t wait until after work begins because accidents can happen from day one, and you might have to foot the bill if your vendor doesn’t have insurance.

This is when you should request COIs from your vendors:

• Before any vendor starts to work on your property: Get certificates during setup and make sure coverage is active before letting anyone start work that could hurt people or damage property.
• During contractor selection: Check insurance coverage when evaluating vendors so you can eliminate uninsured bidders and verify that winners can meet your requirements.
• For dangerous work requiring special coverage: Get extra certificates for risky jobs like roofing or demolition that need specialized insurance beyond basic liability.
• When policies expire: Track renewal dates and get updated certificates before old ones expire so you don’t have gaps where vendors work without coverage.
• When the scope of the work changes: Require new certificates if vendors take on bigger or riskier jobs that would justify higher coverage limits.
• After major accidents: Verify coverage is still active after workers’ comp claims or liability incidents that might cause insurance companies to cancel policies.

Step-by-Step Guide: How to Request a Certificate of Insurance from Vendors

Getting COIs from vendors shouldn’t be too complicated, but most businesses make it harder than necessary by sending vague requests or forgetting to follow up. This systematic approach to requesting a certificate of insurance from vendors will help you gather clear documentation trails that protect your business and satisfy compliance requirements.

Step 1 – Determine Your Insurance Requirements Before Making Requests

Start by determining the coverage you need based on the work being performed and the associated risks. A landscaping contractor needs different insurance than an electrical contractor working inside your building, so tailor requirements to match real exposure rather than using generic templates that might miss important coverage or demand unnecessary protection.

Set coverage limits based on realistic damage scenarios, not random numbers. If a vendor mistake could cost you $200,000 in property damage and lost business, then requiring $500,000 or $1 million in liability coverage makes sense. Check what’s normal in your industry, but adjust for your risk exposure.

You also need to figure out which endorsements you need for protection. Additional insured status puts you on their policy, so their insurance covers claims involving their work for you. A waiver of subrogation stops their insurance company from suing you later for reimbursement. Don’t ask for endorsements you don’t understand or need.

Step 2 – Write a Clear COI Request That Gets Results

Your request needs to spell out exactly what you want and when you need it. This makes it easy for vendors to comply and know what will happen if they don’t.

Always include these parts in your COI request letter:

• Professional opening: Explain the project, timeline, and why you need their insurance documentation so vendors understand this isn’t just bureaucratic paperwork.
• Specific requirements: List exactly what coverage types you require, minimum dollar limits, and any special endorsements. Be specific.
• Clear deadline: Give them a specific date when you need the certificate and explain what happens if they’re late, like work stoppage or payment holds.
• Contact information: Provide phone numbers and a live chat option where they can ask questions. Provide the ability for vendors and their insurance provider to easily upload certificates and endorsements.

Step 3 – Send and Track Your Request Systematically

Email your request and keep a history of all notifications sent. Keep records of every vendor phone conversation with dates and responses so you can prove you gave them fair warnings if problems develop later.

Follow up within a week if you don’t hear back. Use a simple tracking system to monitor who’s submitted certificates, whose policies are expiring soon, and who needs another nudge to get their paperwork in order.

Step 4 – Review and Verify Received COIs for Compliance

Don’t just file certificates without reading them. Check to make sure that coverage types and dollar amounts meet or exceed the minimum limits required, verify that the dates cover your project timeline, and confirm that your business is listed correctly as the certificate holder.

Look for common mistakes like missing additional endorsements, inadequate coverage limits, or outdated policy information that doesn’t reflect current coverage. Call the insurance company directly if something looks wrong or if you’re dealing with expensive projects where mistakes could cost serious money. This extra step helps you catch cancelled policies and coverage problems that certificates don’t always show.

What Should I Include in a COI Request Letter to Contractors?

Your COI letter should include specific insurance types, minimum coverage limits, required endorsements, your company information as a certificate holder, submission deadlines, and consequences for non-compliance to confirm that contractors provide certificates that really protect your business. Here’s how to write the perfect COI request letter.

Essential Components Every COI Request Must Include

Every COI request should contain specific details about required coverage types, minimum limits, necessary endorsements, and administrative requirements. These are the most common elements that you must cover in your COI request letter:

Sample COI Request Email Template

Here’s an example of what a COI request email looks like:

Subject: Certificate of Insurance Required – [Project Name/Contract Number]

Dear [Contractor Name],

We require proof of insurance before you can begin work on [project description] scheduled to start 2026. Please provide a certificate of insurance that includes:

Required Coverage:

• General Liability: $1,000,000 per occurrence, $2,000,000 aggregate
• Workers’ Compensation: Statutory limits
• Commercial Auto: $1,000,000 combined single limit (if vehicles used)

Required Endorsements:

• [Your Company Name] must be added as an additional insured
• Waiver of subrogation in favor of [Your Company Name]
• Primary and noncontributory language

Certificate Holder: [Your full legal business name and address]

Please submit the certificate to [email address] by [specific date]. Work cannot begin without proper insurance verification. Contact [name] at [phone/email] with questions.

Thank you,
[Your name and title]

What Insurance Coverage Should You Require from Different Types of Vendors?

Insurance requirements should match the real risks each vendor creates for your business, with high-risk contractors needing comprehensive coverage while low-risk service providers can work with basic protection. Some of the common vendor insurance requirements by industry are:

• Construction contractors: $1-2 million general liability, workers’ comp, commercial auto, and professional liability
• Office service providers: $1 million general liability, errors and omissions for IT or professional services
• Manufacturing vendors: Product liability, general liability, and pollution coverage for hazardous materials
• Transportation companies: Higher auto limits, cargo insurance, general liability
• Healthcare vendors: Professional liability, cyber liability for patient data, general liability
• Food service providers: Product liability, general liability, and liquor liability if serving alcohol

How to Request a COI in Specific Scenarios

Not every COI request looks the same. A general contractor requesting a certificate from a roofing subcontractor needs different endorsements than a business owner requesting one from a freelance web developer. A tenant asking their landlord for proof of coverage has entirely different concerns than an event organizer vetting a catering vendor.

The scenarios below cover the most common COI request situations your business is likely to encounter. Each one outlines what coverage to require, which endorsements matter, and what language to use in the request so you get documentation that actually protects you rather than a certificate that looks official but leaves gaps.

How to Request a COI from a Subcontractor

Subcontractor COI requests carry more complexity than standard vendor requests because construction projects involve layered liability, completed operations exposure, and endorsements that directly affect who pays when defects surface years after work finishes.

Before sending the request, confirm which endorsements your contract requires. Most commercial construction contracts demand additional insured status for both ongoing and completed operations, a waiver of subrogation, and primary and non-contributory language. A certificate that lists you as additional insured without specifying CG 2010 and CG 2037 endorsement forms leaves you unprotected the moment the sub finishes their scope and leaves the job site.

Standard coverage requirements for subcontractor COI requests include the following:

• Commercial general liability: $1 million per occurrence, $2 million aggregate minimum. Larger projects typically require higher limits.
• Workers’ compensation: Statutory limits for the state where work is performed.
• Commercial auto: $1 million combined single limit for any sub operating vehicles on or to the job site.
• Umbrella/excess liability: $5 million or higher on commercial projects.
• Completed operations coverage: CG 2037 endorsement extending additional insured protection beyond project completion, maintained for the duration of your state’s statute of repose.

Sample request language for the endorsement section of your COI request:

“Subcontractor shall provide [Your Company Name] with additional insured status under CG 2010 (ongoing operations) and CG 2037 (completed operations). Coverage shall be primary and non-contributory. Subcontractor’s insurer shall waive all rights of subrogation against [Your Company Name].”

Never accept a certificate that reads “additional insured as required by written contract” without specifying form numbers. That language tells you almost nothing about what the underlying policy actually contains.

How to Request a COI from a Landlord

Tenants in commercial leases often assume COI requests only flow in one direction, from tenant to landlord. In practice, tenants have their own exposure when landlord negligence causes property damage or injury, and requesting a COI from your landlord before signing a lease is a legitimate and increasingly common practice.

Here’s what to ask for from a commercial landlord:

• Commercial general liability: Covering bodily injury and property damage arising from landlord operations, maintenance failures, and common area incidents.
• Commercial property insurance: Confirming the building itself is insured against fire, water damage, and structural failures.
• Umbrella/excess liability: For larger buildings or multi-tenant properties where aggregate exposure is higher.

The specific ask matters in the request. You want to be listed as an additional insured for incidents arising from the landlord’s negligence or the condition of the premises, not for incidents caused by your own operations. The language should read: “Tenant shall be named as additional insured for claims arising from Landlord’s operations, acts, or omissions.”

Review your lease carefully before sending the request. Many commercial leases include a waiver of subrogation clause requiring both parties to carry property insurance and prohibiting their respective insurers from pursuing the other party after paying a claim. Confirm your own policy includes a waiver of subrogation endorsement before signing any lease that requires it.

How to Request a COI from a Freelancer or Independent Contractor

Freelancers and independent contractors present a different COI challenge than established vendors. Many carry minimal coverage or none at all, and some genuinely don’t understand why you’re asking. The request needs to be clear, specific, and accompanied by an explanation of what happens if they can’t comply.

The minimum coverage requirements vary by the nature of the work:

• General liability: $500,000 to $1 million per occurrence for any freelancer working on your property or handling physical deliverables.
• Professional liability or E&O: $500,000 minimum for any freelancer providing professional services, including design, development, consulting, writing, or marketing advice.
• Cyber liability: Required for any freelancer accessing your systems, handling customer data, or managing digital assets on your behalf.
• Workers’ Compensation: Only required if the freelancer has employees. Sole proprietors without employees are typically exempt, but verify the rules in your state.

When a freelancer pushes back on the additional insured request, which happens often, explain that additional insured status typically costs little or nothing and simply means their insurer will defend both parties if a claim arises from their work. Most commercial GL policies include blanket additional insured provisions or add the endorsement at minimal cost. Most freelancers comply once they understand the request isn’t asking them to absorb a significant expense.

A realistic minimum request for a freelance service provider looks like this:

“Please provide a certificate of insurance showing active general liability coverage of at least $500,000 per occurrence and professional liability coverage of at least $500,000, with [Your Company Name] listed as certificate holder. Work cannot begin without receipt of a valid certificate.”

How to Request a COI from an Event Vendor

Event vendor COI requests operate under tighter timelines and involve coverage types that don’t appear in standard commercial requests. Caterers, photographers, entertainment companies, equipment rental vendors, and venue operators all present distinct liability exposures, and many carry event-specific policies that expire at the end of the event rather than annually.

These are the coverage types to require from event vendors:

• General liability: $1 million per occurrence minimum, with your organization named as additional insured. For large events, require $2 million aggregate.
• Liquor liability: Required for any vendor serving or supplying alcohol. Standard GL policies contain a liquor liability exclusion that applies to vendors whose business includes serving or supplying alcohol. A caterer pouring wine or a bartending service needs separate liquor liability coverage because their standard GL won’t respond to alcohol-related claims.
• Event cancellation insurance: Worth requesting from the venue or primary event organizer on large events where deposits and vendor contracts represent significant financial exposure.
• Equipment coverage: For vendors bringing expensive equipment onto your property, confirm their inland marine or equipment floater policy covers damage or theft on your premises.

One consideration specific to event vendors is the policy effective date. A vendor carrying an annual policy is straightforward. A vendor who purchased a one-day event policy needs to show that the policy covers setup and teardown in addition to the event itself, not just the hours when guests are present. Setup and teardown are when most equipment damage and physical injuries occur.

Follow this sample checklist for event vendors:

• General liability certificate with your organization as additional insured
• Liquor liability endorsement if alcohol is involved
• Policy effective dates confirming coverage through setup, event, and teardown
• Waiver of subrogation in your favor
• Contact information for the issuing broker to verify coverage directly

What to Do When a Vendor Refuses to Provide a COI

A vendor who refuses to provide a certificate of insurance is signaling one of four things: they don’t carry insurance, they carry inadequate insurance they don’t want scrutinized, they’re unfamiliar with the request process, or they’re testing whether you’ll back down. Each scenario requires a different response:

• If they claim they don’t know how: Direct them to their insurance broker. The broker generates the certificate, not the vendor. Most brokers turn around standard COI requests within one business day. If the vendor doesn’t have a broker, they may not have insurance.
• If they claim their insurance: Being listed as a certificate holder is purely informational and never prohibited. Additional insured status is a standard request for general liability policies that virtually all insurers accommodate. Push back and ask them to have their broker call you directly.
• If they claim it’s not required for the type of work: It may not be legally required, but it’s your contractual right to require it. Make clear that your requirement isn’t negotiable and that work cannot begin without a valid certificate on file.
• If they simply refuse: Don’t proceed. A vendor without insurance who causes damage to your property, injures an employee, or creates a data breach leaves your business absorbing a loss that should have been transferred. The short-term inconvenience of finding a compliant vendor is substantially less expensive than an uninsured claim.

Document every refusal in writing. If a vendor later claims they provided the certificate and you can’t find it, your written record of their refusal protects you from that dispute. Keep all correspondence in a central location tied to the vendor’s record, and flag their profile as non-compliant in your COI tracking system until valid documentation is on file.

How Long Do COIs Last and What Happens When They Expire?

Most COIs last one year and need to be renewed before they expire, usually when the vendor’s insurance policies renew each year. The certificate shows coverage expiration dates that tell you when you need new paperwork from your vendors.

Some projects need more frequent updates because waiting a full year between certificates creates too much risk. For example, a construction job that lasts 18 months or complex projects with changing requirements might benefit from quarterly updates to catch any coverage changes that may happen. This is even more important for high-risk work where insurance companies might cancel or change policies mid-term due to claims or safety violations.

If a COI expires without replacement, you may have to stop work immediately because you no longer have proof that vendors are carrying the required insurance. This creates immediate compliance problems that can violate your contracts and eliminate legal protections if accidents happen while you’re working with outdated certificates.

The solution is tracking proactively to prevent expirations. The best COI tracking software will handle and automate all of this for you. Software like CertFocus by Vertikal RMS can help you effortlessly track renewals before they become problems.

How CertFocus by Vertikal RMS Automates and Simplifies Vendor COI Management

CertFocus by Vertikal RMS eliminates the manual headaches of chasing vendors for certificates by automatically collecting, verifying, and monitoring insurance documentation while providing real-time alerts when policies expire or change. This automation saves hundreds of hours of administrative work while catching coverage gaps that manual processes tend to miss.

AI-Powered COI Collection and Verification Process

CertFocus by Vertikal RMS automatically reaches out to vendors for missing or expiring certificates, Hawk-I artificial intelligence technology is used to extract coverage information from submitted documents, and verify policy details within minutes of receiving coverage documents. This Hawk-I AI technology also catches policy exclusions and inadequate coverage limits that human reviewers might miss in a rush.

And when transitioning to automated COI management, you’ll want good support on your side to implement the new software: