Definition

Primary and noncontributory endorsement, explained

Short answer

Primary and noncontributory wording means the subcontractor’s policy pays first for a covered claim and does not ask your own policy to share the loss. Contractors ask for it so a sub’s claim hits the sub’s insurance before their own. It comes from a policy endorsement, not from the certificate, so ask for the form.

Written by Liam · CertChase · Last reviewed October 3, 2026

Not sure where your own subs stand? Paste your list and get a free gap report in two minutes.

Free COI audit

Primary vs excess

Primary means the policy responds first, up to its limit. Excess means it responds only after other insurance is used up. When two policies could both respond, the order matters. Without the wording, your own policy may be asked to contribute.

What noncontributory adds

Noncontributory means the sub’s insurer will not ask your insurer to share the loss. Together, primary and noncontributory tell the sub’s insurer: pay first and do not look to the additional insured’s own policy.

Why GCs require it

Keeps a sub-caused claim off your loss record.
Protects your deductibles and premiums.
Is often a requirement from owners and lenders on larger projects.

How to check it

Look for the wording in the description box of the certificate. It is a hint, not proof.
Ask for the endorsement form from the sub’s policy.
Confirm that it applies to you as an additional insured and to the right operations.
Put the requirement in your subcontract insurance clause.

Primary and noncontributory is often paired with a waiver of subrogation. See what a waiver of subrogation is. State law can limit what a contract may require, so check your state page under COI tracking by state.

Not legal or insurance advice. This is general information. Your contract, your state and your policy decide what applies to you. Ask your broker or attorney.

Frequently asked questions

What does primary and noncontributory mean?

The sub’s policy pays first and does not seek contribution from the additional insured’s own policy.

Is primary and noncontributory shown on a certificate?

It may be noted in the description box, but the actual wording is on the policy endorsement. Ask for the form.

Is it the same as additional insured?

No. Additional insured status gives you coverage under the sub’s policy. Primary and noncontributory sets the order of payment.

What is primary non contributory wording?

It means the sub’s policy pays first for a covered claim and does not ask your own insurance to share the loss.

Keep reading

01GuideWaiver of subrogation, primary and non-contributoryTwo clauses that appear in almost every subcontract. What waiver of subrogation and primary and non-contributory mean, and how to check them.02GuideAdditional insured endorsementsWhat additional insured status means, why a certificate does not prove it, and which endorsements to request from subcontractors.03DefinitionBlanket additional insuredBlanket additional insured by written contract: what it means, blanket vs named, and how to check the endorsement. Plain English for contractors.04DefinitionWaiver of subrogationA waiver of subrogation stops an insurer from suing another party after paying a claim. Here is how it works on construction jobs and what to check.05GlossaryGlossaryPlain-English meanings of the insurance words contractors see on certificates, endorsements and subcontracts, from ACORD 25 to waiver of subrogation.

See your certificate gaps in two minutes

Paste your subcontractor list and get an instant report, or leave your email and phone and we will review it for you.

Start the free audit