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How to read a certificate of insurance
A certificate is evidence a policy exists — not proof of what it covers. This guide explains what every box on an ACORD certificate means, which form to use for each request, and the questions to ask before you rely on one.
At a Glance
- Standard form
- ACORD 25
- Guides
- 25 · 24 · 23 · 30
- Key lesson
- Evidence, not coverage
- Issued by
- The producer
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A certificate is evidence — the policy is the coverage
Nearly every business is asked for a certificate of insurance at some point — by a landlord before signing a lease, by a general contractor before a crew can mobilize, by a client before a contract is executed, or by a lender before a vehicle or building is financed. The document is standardized by ACORD, and it looks official: carriers, policy numbers, limits, dates. It is easy to assume that whatever the certificate shows is what you are protected by.
That assumption is the single most expensive mistake people make with certificates. ACORD states plainly, in the disclaimer printed at the top of the form, that a certificate is issued as a matter of information only, confers no rights upon the certificate holder, and does not affirmatively or negatively amend, extend, or alter the coverage in the policy. In other words: the certificate is a photograph of coverage on the day it was printed. The actual policy — including its forms, endorsements, exclusions, and eroded limits — is what pays a claim. When the two disagree, the policy wins.
The four guides below walk box by box through the ACORD certificates you are most likely to send or receive. Each one uses a numbered diagram so you can map the explanation to the exact region on the form in front of you. Start with whichever form matches your request, or read the ACORD 25 guide first — it covers the concepts every other certificate reuses.
The four guides
Which certificate are you reading?
Each ACORD certificate evidences a different kind of coverage. Open the guide that matches the form in front of you — every guide includes an annotated, numbered diagram.
ACORD 25
Certificate of Liability Insurance
The everyday certificate. Evidences general liability, auto liability, umbrella/excess, and workers' compensation & employers liability on one page.
Use it when: A landlord, general contractor, vendor, or client asks you to "send a COI." This is almost always the form they mean.
Read the guide
ACORD 24
Certificate of Property Insurance
Evidences a commercial property policy — causes of loss (Basic / Broad / Special), building and business personal property limits, business income, and deductibles.
Use it when: Someone needs proof of property coverage but has no lender-style insurable interest. A mortgagee or lender usually needs ACORD 27 or 28 instead.
Read the guide
ACORD 23
Vehicle or Equipment Certificate
Evidences liability and physical-damage coverage for a single scheduled vehicle or one piece of equipment, including valuation basis and additional-interest details.
Use it when: A title company, lienholder, or lessor asks for proof of coverage tied to one financed or leased unit — by VIN or serial number.
Read the guide
ACORD 30
Certificate of Garage Insurance
Purpose-built for garage risks. Separates garage liability from garagekeepers, and can also show CGL, umbrella, and WC/EL.
Use it when: A used-car dealer, repair shop, service station, or tow operator needs to evidence garage-specific coverage — where a plain ACORD 25 doesn't capture the garage lines.
Read the guide
Match the form to the request
Pick the right certificate the first time
A common cause of rejected or reissued certificates is simply sending the wrong ACORD form. Use this quick reference before you request one.
Common requests and the ACORD form that fits
- "Just send me your COI"
Use ACORD 25 — the standard liability certificate showing GL, auto, umbrella, and WC/EL.
- Proof of building / property coverage
Use ACORD 24 for a party with no insurable interest; use ACORD 27 or 28 for a mortgagee or lender.
- One financed or leased vehicle or machine
Use ACORD 23 — it schedules the specific unit by VIN or serial number and handles loss payee vs lender's loss payable.
- Dealer, repair shop, or tow operator
Use ACORD 30 — it separates garage liability from garagekeepers, which a plain ACORD 25 does not.
- Holder wants Additional Insured or Waiver status
The certificate is not enough — the underlying policy must be endorsed. Ask for a copy of the actual endorsement.
Read every certificate this way
Five things that are true on every ACORD certificate
These principles apply no matter which form you are holding. Each individual guide returns to them in the context of the specific boxes.
Universal certificate-reading principles
- It is evidence, not a contract
A certificate is issued as a matter of information only and confers no rights on the holder. It does not amend, extend, or alter the coverage in the policy.
- An "X" is a claim, not proof
An X in the Additional Insured or Waiver of Subrogation column claims that status exists — but only a policy endorsement (for example CG 20 10 / CG 20 37 for additional insured, CG 24 04 for waiver) actually creates it.
- Limits may already be eroded
The coverages disclaimer notes that limits shown may have been reduced by paid claims. Only a current loss run confirms how much of an aggregate remains.
- The cert does not show carrier strength
Verify the insurer's A.M. Best rating separately; a common contract requirement is A- / VII or better. The certificate does not display financial strength.
- Use the current edition
ACORD keeps only current-edition forms regulatorily compliant. An outdated edition may be non-compliant, so confirm you are reading a current form.
The wording behind the boxes
Additional insured, waiver, and primary & non-contributory
The three requests that generate the most certificate confusion are additional insured status, waiver of subrogation, and primary and non-contributory wording. On the certificate these appear as a single checked box or a line of text — but each one is a real policy endorsement with real cost and eligibility implications. If you are on the receiving end, the safe move is always the same: ask for the endorsement itself, not just the certificate. If you are the one being asked to provide them, understanding the underlying coverage helps you avoid promising wording your policy cannot actually deliver.
Certificate rejected?
If a hiring party said your COI is non-compliant
Most rejections come down to a handful of fixable gaps — a missing additional-insured endorsement, absent primary & non-contributory wording, no waiver of subrogation, limits below the contract minimum, or a shared aggregate. Our compliance guide decodes the nine most common failures, and the interactive checker turns your contract requirements into a plain-English checklist to hand your agent.
Certificate FAQs
Common certificate-of-insurance questions
- A certificate of insurance (COI) is a one-page summary that provides evidence a policy exists on the date it is issued. ACORD, the organization that standardizes insurance forms, is explicit that a certificate is issued as a matter of information only, confers no rights on the certificate holder, and does not affirmatively or negatively amend, extend, or alter the coverage in the actual policy. Only the policy — and any endorsements — controls what is actually covered.
- Match the form to the request: ACORD 25 for liability (GL, auto, umbrella, workers' compensation), ACORD 24 for commercial property (or ACORD 27/28 when a lender has an insurable interest), ACORD 23 for a single financed or leased vehicle or piece of equipment, and ACORD 30 for garage operations such as dealers, repair shops, and tow operators.
- No. Being named as certificate holder only means you received the evidence — it does not make you an insured. To have rights under someone else's policy you must be added as an additional insured by endorsement, and you should request a copy of that endorsement rather than relying on an X in a box on the certificate.
- Not by itself. Modern ACORD forms say cancellation notice will be provided in accordance with the policy provisions. Historically the form promised to "endeavor" to mail notice but disclaimed any obligation to do so. Courts have held that a certificate is not a contract between the holder and the insurer, so any notice-of-cancellation right generally has to come from a policy endorsement, not the certificate.
- The obligations differ. A property policy typically requires the insurer to notify the mortgage holder on cancellation, while a liability policy generally obligates notice only to the first named insured unless it is endorsed otherwise. ACORD separates the property (ACORD 24) and liability (ACORD 25) certificates to reflect those different duties.
- Yes. For active clients we issue certificates the same business day during business hours, and we can review a certificate you received from a vendor or subcontractor to confirm whether the coverage and endorsements actually match your contract. Call 813-582-5215 or request a certificate through the Service Center.
Sources
Authoritative references
- ACORD — Forms FAQ (certificates of insurance)
- ACORD — Certificates of Insurance FAQ (PDF)
- IRMI — Certificate of Insurance (definition)
- Insurance Information Institute — Understanding your insurance policy
This guide is a general, educational explanation of ACORD certificate forms reviewed against the references below. It is not legal advice, a statement of coverage, or a substitute for reading your actual policy and endorsements. ACORD form layouts and editions change over time. Last reviewed . Requirements and policy terms change — always confirm current rules with the relevant agency and verify coverage against the actual policy and a licensed agent.
Next step
Need a certificate issued or reviewed?
Active clients get same-day certificates during business hours, and we can review a vendor or subcontractor certificate to confirm the coverage matches your contract. Call 813-582-5215 or request one online.