If you manage subcontractors, you've almost certainly seen the phrase "additional insured" on a certificate of insurance (COI) and wondered exactly what it guarantees. This page walks through what the term means, how it differs from related terms like "certificate holder" and "loss payee," and why the distinction matters when you're reviewing subcontractor compliance documents.
What "additional insured" actually means
Being named as an "additional insured" on someone else's liability policy means you can make a claim against that policy for liability arising from the named insured's work — typically the subcontractor's work on your project. It does not mean you hold your own policy with that insurer, and it does not mean the insurer has reviewed or approved your project. It's a status granted on the policyholder's policy, usually added by an endorsement.
Additional insured endorsement
The "additional insured" status isn't automatic just because a certificate lists you — it has to be granted by an endorsement attached to the policy. A certificate of insurance is a summary document; the endorsement is the actual contract language that extends coverage. In practice, this means two subcontractors can both hand you a COI that looks like it names you as additional insured, while only one of them has the underlying endorsement that actually does it. A certificate without a matching endorsement is a common gap.
Additional insured vs. certificate holder
A "certificate holder" is simply whoever a COI is addressed to — it just means you received a copy of the certificate, with no coverage rights implied. Being named as an additional insured is a materially different, stronger status: it gives you a right to coverage under that policy. Many compliance reviews miss this distinction and treat "we're on the certificate" as equivalent to "we're protected," which isn't the same thing.
Additional insured vs. loss payee
"Loss payee" is a separate status entirely, typically used for equipment or property coverage rather than liability. A loss payee is entitled to insurance proceeds on a covered loss to specific property (for example, a lender with an interest in financed equipment) — it has nothing to do with liability protection the way additional insured status does. Seeing "loss payee" on a certificate doesn't satisfy a requirement written for "additional insured," and the two shouldn't be treated interchangeably when you're checking a COI against your requirements.
Why this distinction matters for subcontractor compliance
When you set insurance requirements for subcontractors, the specific status you require — additional insured, with a matching endorsement — is what actually protects you if something goes wrong on a job site. A certificate that lists you only as certificate holder, or that confuses loss payee language with additional insured language, can leave a real gap that isn't obvious from a quick glance at the document.
SubTrack lets you set the specific requirements you expect from each subcontractor and tracks the certificates submitted against them, flagging gaps and upcoming expirations before they become a problem. It's worth being explicit about what that does and doesn't mean: SubTrack does not independently verify coverage with insurance carriers, and it is not a legal or compliance authority. It helps you track the documents and requirements you define — the underlying judgment about what status and endorsements a project needs still belongs to your team or your insurance advisor.