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What Is a Certificate of Insurance (COI), and How Do You Get One?

September 5, 2026 · Updated October 2026 · Florida's independent agency since 1966

If you run a business in Florida, sooner or later a client or general contractor asks for a "certificate of insurance." Here is what it is and why it can decide whether you get the job.

What a COI is

A one-page summary, usually an ACORD form, that proves you carry coverage — general liability, workers' comp, commercial auto — listing the carriers, limits, and policy dates. Your agent issues it. It is proof of coverage, not the policy itself.

TermWhat it actually means
ACORD 25The standard certificate-of-insurance form for liability, auto, and workers' comp
Certificate holderThe party receiving the certificate as proof — being listed here gives them no coverage
Additional insuredA party added to your policy by endorsement, so your coverage also protects them
Waiver of subrogationYour insurer gives up its right to recover its payout from that party after a claim

What "additional insured" means

A client or GC often wants to be named as an additional insured, which extends your liability policy to cover them for claims arising out of your work. That usually requires an endorsement to your policy, not just a line on the certificate.

Additional insured vs. certificate holder

This is the distinction that trips people up. A certificate holder just receives the COI as proof you're covered — it gives them no rights under your policy. An additional insured is genuinely added to your policy by endorsement, so your liability coverage actually defends and protects them for claims arising from your work. When a GC asks to be "named as additional insured with a waiver of subrogation," a line in the certificate-holder box is not enough; your carrier has to add the endorsement.

Why it can win or lose the job

No certificate, no work. Most GCs and municipalities won't let you on site without one, and they often need you to add them as additional insured with a waiver of subrogation. Delays here cost jobs.

How fast can you get one

Once your policy is bound, a good independent agent issues certificates and additional-insured endorsements quickly, often the same day. It's a routine part of keeping contractors working.

How to request a certificate of insurance

To get a COI issued quickly, send your agent three things: the certificate holder's exact legal name and address, the coverage limits the contract requires, and whether you need additional-insured status and/or a waiver of subrogation. With those details and a bound policy, most independent agencies turn a certificate around the same day.

Frequently asked questions

What is a certificate of insurance?

A one-page document (usually an ACORD 25 form) that proves you carry insurance, showing your carriers, coverage types, limits, and policy dates. It's proof of coverage, not the policy itself.

What does 'additional insured' mean?

It extends your liability policy to cover another party, like a general contractor or property owner, for claims arising from your work. It typically requires a policy endorsement, not just a line on the certificate.

What is the difference between an additional insured and a certificate holder?

A certificate holder simply receives the certificate as proof of coverage and gets no coverage from it. An additional insured is actually added to your policy by endorsement, so your coverage also protects them.

What is a waiver of subrogation?

It's an endorsement in which your insurer gives up its right to recover its payout from another party (often the GC) after a claim. General contractors frequently require it alongside additional-insured status.

How quickly can I get a COI?

Once your policy is bound, certificates and additional-insured endorsements can usually be issued the same day by a good independent agent.

How do I request a certificate of insurance?

Send your agent the certificate holder's exact name and address, the limits required, and whether you need additional-insured status or a waiver of subrogation. With that, the COI can usually be issued the same day.

Need a certificate for a client or GC?

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