How Much Does a Certificate of Insurance Cost?
Short answer: a Certificate of Insurance (COI) is almost always free. The confusion — and the occasional real charge — comes from three things people mix up with the certificate itself: a small carrier admin fee, an additional insured endorsement, and the underlying policy premium. Here's what actually costs money and what never should.
A certificate of insurance costs $0 in the large majority of cases — it's a standard proof-of-coverage document your broker issues from a policy you already have. Some carriers charge a $10-$25 administrative fee per certificate. Adding an additional insured can add $0-$75 (occasionally up to $300 on higher-risk projects). None of that is the cost of the insurance policy itself, which is a separate, much larger number.
1. Why a Certificate of Insurance Is Usually Free
A COI, most commonly the ACORD 25 form, is not a product you buy — it's a summary of coverage that already exists on an active policy. When a general contractor, landlord, or client asks a vendor for proof of insurance, the vendor's broker pulls the policy details and issues a one-page certificate naming the requester as certificate holder (and, if required, additional insured).
Generating that document costs the broker almost nothing — most agency management systems produce one in a few clicks — so the overwhelming majority of brokers and carriers include it as a standard, no-charge service, whether the request comes through an online portal, an email, or a phone call.
Usually free
- • Standard certificate request via broker portal or email
- • Adding a new certificate holder to an existing policy
- • Renewing/reissuing a certificate at policy renewal
Sometimes costs something
- • Certain carriers' flat per-certificate admin fee
- • Adding an additional insured endorsement
- • Same-day/rush requests at some agencies
2. When Carriers Do Charge a Fee
Some insurance providers charge a small administrative fee — typically $10 to $25 per certificate— as part of their standard process, particularly for businesses that need certificates issued frequently across many jobs or tenants. It's not universal, and it's rarely disclosed up front, so the only reliable way to know is to ask your broker directly whether certificate issuance carries any charge on your specific policy.
If you're a subcontractor who works with dozens of general contractors and needs a fresh certificate for each one, ask your broker about adding all of them as certificate holders on file — most agencies will do this at no extra cost, and it means renewed certificates go out automatically without a new request (or a new fee) each time.
3. The Real Fee People Mean: Adding an Additional Insured
When someone says a COI "cost them $150," they're almost always describing an additional insured endorsement, not the certificate. Naming another party as an additional insured is an actual change to the policy, not just a summary of it, so it's the one part of this process that can legitimately carry a fee.
Typical additional insured endorsement cost
- $0 — many commercial general liability policies already include a blanket additional insured endorsement (like ISO CG 20 33 or CG 20 10) that satisfies most contract requirements at no extra charge.
- $0-$75 — the typical range when a carrier does charge per endorsement, sometimes billed as a flat annual fee rather than per request.
- Up to $200-$300 — possible on higher-risk trades or larger projects where the endorsement meaningfully changes the carrier's exposure.
Before assuming there's a fee, ask your broker whether your policy already has a blanket additional insured endorsement — a large share of GC insurance requirements are satisfied by one that's already in force, at $0. For the difference between an additional insured and a certificate holder (a common point of confusion on the same certificate), see our certificate holder vs. additional insured guide.
4. The Question Behind the Question: What Does the Insurance Itself Cost?
A lot of people searching "how much does a COI cost" are really asking a bigger question: what does it cost to actually be insured well enough to get a compliant certificate in the first place? That's a policy-pricing question, not a certificate-pricing question, and the honest answer is: it depends heavily on trade, payroll, revenue, claims history, and the coverage limits a project requires.
General Liability, Workers' Compensation, Commercial Auto, and Umbrella premiums each price independently and can range from a few hundred dollars a year for a low-risk sole proprietor to tens of thousands for a high-risk trade with employees and a large payroll. If that's the number you actually need, our construction vendor insurance requirements guide and insurance requirements by trade breakdown are the better starting points than this page.
5. The Cost That Actually Matters: Not Tracking Certificates Properly
Here's the irony: the certificate itself is close to free, but failing to track it costs real money. If a subcontractor's coverage lapses mid-project and nobody notices, the general contractor absorbs two expensive risks:
Assumed liability: if there's a jobsite injury and the sub is uninsured, the GC's own workers' comp and liability carriers can end up absorbing the claim.
Audit back-charges: during the GC's year-end payroll audit, insurers reclassify any payments made to an uninsured 1099 vendor as direct payroll — a single missed certificate on a mid-size subcontract can trigger a surcharge worth many times more than any certificate fee. See the math in our uninsured subcontractor audit penalty guide.
6. Tracking Certificates Without Adding a Fee of Your Own
If the actual problem you're solving is "I don't want to keep chasing subcontractors for renewed certificates," that's a tracking problem, not a certificate-cost problem — and it's worth separating the two before you pay anyone. If you're comparing what COI tracking *software* costs, that's covered in our COI tracking software pricing guide.
SubDoc sends passwordless upload links to subcontractors and their brokers before a policy expires, reads the returned ACORD 25 with AI OCR, and flags missing endorsements automatically — so you get a renewed, compliant certificate on file without a manual request (and without paying a broker rush fee) every time.
Frequently Asked Questions
In almost all cases, $0. A Certificate of Insurance (COI) is not a policy — it's a one-page summary of coverage that already exists, and issuing one is a standard, no-cost service most brokers and carriers perform as part of the policy relationship. Some insurance providers charge a small administrative fee, typically $10 to $25 per certificate, but this is the exception, not the norm, and it's worth asking your broker directly if you're quoted anything higher.
It's uncommon. Most brokers issue certificates free as a routine part of servicing your policy, especially through an online portal. If a broker or vendor tells you a certificate itself costs hundreds of dollars, that's usually a sign they're actually quoting the cost of adding an additional insured endorsement, purchasing new coverage, or charging an unrelated administrative fee — ask them to clarify which one you're being billed for.
Adding an additional insured endorsement typically costs $0 to $75, though it can run up to $200-$300 for higher-risk projects or less common carriers. Many commercial general liability policies already include a blanket additional insured endorsement at no extra charge when the requirement is contractual, so ask your broker whether your policy already qualifies before assuming there's a fee at all.
This usually happens for one of three reasons: the broker is charging a legitimate small carrier admin fee ($10-25), the request actually requires a policy change like adding an additional insured or waiver of subrogation (which can carry its own modest fee), or — less charitably — the broker is charging a markup on a task that should be free. If a subcontractor is being charged repeatedly for certificates to the same general contractor, it's worth flagging; that's usually solvable by requesting a certificate holder be added once so renewals reissue automatically.
No, and this is the most common confusion. The certificate itself is a free proof-of-coverage document. The insurance policy behind it — General Liability, Workers' Compensation, Commercial Auto, or Umbrella — is what actually costs money, and its premium depends on trade, payroll, revenue, claims history, and coverage limits, typically ranging from a few hundred to several thousand dollars per year. If you're trying to estimate what it costs a subcontractor to be properly insured (not just to request a certificate), that's a policy-pricing question, not a certificate question.
This is where the real money is. If a subcontractor's insurance lapses mid-project and it goes unnoticed, the general contractor can face two costly exposures: assumption of workers' comp liability if an injury occurs on an uninsured crew, and retroactive back-premium charges during the GC's year-end payroll audit, since insurers reclassify payments to uninsured subs as direct payroll. At standard trade audit rates, a single missed certificate on a mid-size subcontract can trigger a surcharge many times larger than any certificate fee ever would.
Related Certificate & Cost Guides
Stop chasing certificates manually
SubDoc reads every returned ACORD 25 automatically and flags missing endorsements before they become a compliance gap. Free for up to 3 vendors.