Industry Insights
Words of wisdom from our business insurance experts.
Certificate of Insurance: Why Every Startup Needs One
Here's a scenario that plays out very often. A startup lands its first real client — or signs an office lease, or gets accepted into a retailer — and then the paperwork lands: "Please send over your certificate of insurance." Suddenly a document nobody thought about is standing between the founder and a deal they've worked months to close.
For example, one founder we've seen landed a six-figure enterprise SaaS contract, only to discover the deal couldn't be countersigned until a COI showing $1 million in general liability — and additional-insured status for the client — was on file. The coverage existed; the paperwork just hadn't been requested yet.
If you've never seen the request yet, you will. A certificate of insurance, or COI, is one of those quietly essential pieces of running a business — the thing clients, landlords, and partners ask for as casual proof that you're actually covered. And the startups that have it ready close faster than the ones scrambling to produce it.
Here's what a COI is, who's going to ask for it, and how to have one in hand before you need it.
Quick answer: A certificate of insurance (COI) is a one-page document — usually the standardized ACORD 25 form — that proves your business carries insurance. It summarizes your coverage types, policy numbers, limits, and effective dates. Clients, landlords, vendors, and partners commonly require one before they'll sign a contract or let you start work. It's proof of coverage, not coverage itself — an important distinction we'll get to. You typically request one from your broker or carrier, often the same day.
What is a certificate of insurance, and why do I need one?
A certificate of insurance is a standardized summary of your business insurance, most often issued on the industry-standard ACORD 25 form. On a single page, it lists the essentials: which policies you carry, your policy numbers, your coverage limits, and the dates your coverage is active.
ACORD 25 is the standard liability certificate. Other forms exist — ACORD 27, for instance, covers property — but the vast majority of requests a startup sees will be for an ACORD 25.
Why does anyone want it? Because before another business ties itself to you — signs a contract, hands you a lease, puts your product on their shelf — they want quick, verifiable proof that if something goes wrong, you're insured for it rather than uninsured and unable to pay. A COI is the shorthand for "yes, we're covered, here's the evidence."
For a startup, that matters more than it first appears. The request tends to arrive at exactly the moments that matter most: closing your first enterprise client, signing your first office lease, onboarding with a marketplace or retailer. Not having a COI ready doesn't just look unprepared — it can stall the deal while you scramble to get one.
One thing worth understanding up front: a COI is proof of insurance, not the insurance itself. It doesn't grant coverage, change your policy, or create rights on its own. It simply reports what your policy already says. That distinction becomes very important in a minute.
What's actually on a certificate of insurance?
Most COIs follow the same ACORD 25 layout, so once you can read one, you can read them all. The key fields:
The person requesting your COI is usually scanning for two things: do you carry the coverage our contract requires, and are the limits high enough. If your contract calls for a $1 million general liability limit and your certificate shows $500,000, expect a follow-up before anything gets signed.
Certificate holder vs. additional insured (the distinction that trips people up)
This is the part that causes the most confusion — and the most disputes — so it's worth getting right.
When someone asks for a COI, they'll sometimes ask to be listed as a certificate holder, and sometimes to be added as an additional insured. These sound similar. They are not the same thing at all.
Here's the trap: writing "additional insured" on a certificate doesn't actually make anyone an additional insured. The policy itself has to be endorsed to add them. The ACORD form even says so directly. If a client's contract requires additional-insured status and your policy was never endorsed to provide it, the certificate can say whatever it wants — the coverage isn't there.
For a startup, this is exactly the kind of detail that's easy to miss and expensive to get wrong. If a contract asks for additional-insured status, make sure your broker actually endorses the policy, not just names the party on the certificate.
One more wrinkle worth knowing: some policies carry a "blanket" additional insured endorsement that automatically extends coverage to any party you're contractually required to add — which is convenient, but those endorsements still come with their own conditions and limits. It's another reason to check the actual form rather than trust the checkbox.
Who's going to ask a startup for a COI?
Usually, it's whoever has something to lose if your business causes a problem. Commonly, that's:
- Clients and customers — especially enterprise clients, who often require a COI (and specific limits) written into the contract before work begins
- Landlords — commercial leases frequently require proof of liability coverage, often with the landlord named as an additional insured
- Vendors, marketplaces, and retailers — many won't onboard you until you've shown coverage
- Partners and event venues — anyone whose space or reputation is exposed by your operations
The pattern is consistent: the COI request tends to show up right as a relationship becomes real. Having one ready signals that you're a business worth doing business with.
What insurance does a startup need before its first hire?
A COI is only as useful as the coverage behind it — so it's worth knowing what most startups actually carry, and when.
Early on, the foundation is usually general liability insurance, often bundled with property coverage in a Business Owners Policy. That's typically what clients and landlords are asking your COI to prove. Depending on what you do, professional liability / E&O and cyber coverage often follow close behind.
Then there's the hiring milestone. In most states, once you have even one W-2 employee — sometimes including part-time or family members — workers' compensation insurance becomes legally required, though specific thresholds and exemptions vary by state. For many startups the first hire is the trigger, and it's one of the clearest "you now need this" moments in a young company's life. It's worth lining up before the employee starts rather than after — a quick conversation with a broker as you approach that first hire can keep you compliant from day one.
How to get a certificate of insurance (COI)
The good news: if you already have an active policy, getting a COI is usually fast and free. The typical path:
- Have an active policy in place. A COI only reflects coverage you already carry — so the real work is having the right policies bound first.
- Request the certificate from your broker or carrier. Many can issue a standard COI the same day, sometimes within minutes, through an agent or an online portal.
- Give them the details. You'll usually need the certificate holder's name and address, the required limits, and whether additional-insured status is needed.
- Check the endorsement if additional insured is required. If the contract asks for it, confirm your policy is actually endorsed — not just that the box is filled in.
One note on timing: a plain certificate is quick, but if the request requires new endorsements or a coverage change, that can take longer depending on the carrier. If you know a big contract or lease is coming, it's worth getting ahead of the paperwork rather than requesting everything the day it's due.
How to choose an independent insurance broker for your startup
Most of the friction above — knowing which coverage you need, getting limits right, handling endorsements, turning around COIs quickly — comes down to who's managing your insurance. For a startup, an independent broker is usually the right fit, and a few things separate a good one:
- They work for you, not one carrier. An independent broker can shop multiple insurers for the right coverage at the right price, rather than selling a single company's products.
- They know startups. Emerging-company risk — SaaS, hardware, consumer brands, whatever you're building — is different from insuring a corner store. Look for someone who places it regularly.
- They're responsive on COIs. When a client needs a certificate today, "next week" isn't an answer. Fast, accurate certificate turnaround is a real differentiator.
- They read the contract, not just the checkbox. A good broker will look at your client and lease agreements and make sure your coverage — including additional-insured endorsements — actually matches what you've signed.
The right broker turns insurance from a fire drill into a quiet piece of infrastructure — the kind you barely think about because it's handled.
The bottom line
A certificate of insurance is a small document that carries a lot of weight. It's how the businesses around you confirm you're covered, and it shows up at exactly the moments a startup can't afford delay — the first big client, the office lease, the retail deal. Have the right coverage in place, know the difference between a certificate holder and an additional insured, and keep a broker on hand who can turn a COI around fast.
Do that, and the request that stalls other founders becomes a two-minute task for you — one more sign that you're building a company that's ready for the next thing.
Getting asked for a certificate of insurance — or want to be ready before you are? Tell a Fullsteam advisor what your client or landlord is requiring, and we'll make sure your coverage matches the contract and get your COI turned around fast.
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Frequently Asked Questions
What is a certificate of insurance and why do I need one?
A certificate of insurance (COI) is a one-page document — usually the ACORD 25 form — that proves your business carries insurance, listing your coverage types, policy numbers, limits, and effective dates. You need one because clients, landlords, vendors, and partners commonly require proof of coverage before they'll sign a contract or let you begin work. It's proof of insurance, not the insurance itself.
How do I get a certificate of insurance (COI)?
If you already have an active policy, you request a COI from your broker or insurance carrier — often through an agent or an online portal, sometimes the same day. You'll provide the certificate holder's details, the required limits, and whether additional-insured status is needed. If the request requires a new endorsement or coverage change, it can take a little longer.
What's the difference between a certificate holder and an additional insured?
A certificate holder simply receives the certificate as proof your insurance exists — they get no coverage rights. An additional insured is actually added to your policy and can receive defense and indemnity for certain claims. Being named an additional insured requires a policy endorsement; writing it on the certificate alone doesn't create the coverage.
What insurance does a startup need before its first hire?
Most startups start with general liability, often bundled into a Business Owners Policy, plus professional liability or cyber depending on the business. The key hiring trigger is workers' compensation: in most states, having even one W-2 employee makes workers' comp legally required, though specific thresholds and exemptions vary by state. It's worth arranging before the employee starts.
Does a certificate of insurance provide coverage?
No. A COI is evidence of coverage you already carry — it doesn't grant coverage, change your policy, or create rights on its own. If a contract requires specific coverage or additional-insured status, the underlying policy has to actually provide it; the certificate only reports what's there.
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