Last updated: October 2026. Clause mechanics verified October 2026 — endorsement forms and state rules change; verify before you sign.
🎯 A waiver of subrogation is an endorsement on your policy that gives up your insurer's right to chase the party you waived (usually the general contractor) after it pays a claim. It does not add coverage, raise your limits, or protect you. It protects the GC by closing the door your insurer would otherwise use to recover money from them. On general liability it is usually added by blanket endorsement; on workers' comp the insurer may charge for it, so ask your broker.
⚠️ Read before you sign: This is a plain-language explainer, not legal or insurance advice. Endorsement forms, surcharges, and anti-subrogation rules vary by state and by carrier. Do not sign a subcontract waiver provision without running the actual endorsement language past your broker and, where the dollars warrant it, your attorney.
TL;DR
- A waiver of subrogation removes your insurer's right of recovery against a named party. It is a giveaway from your carrier's side, not a benefit to you.
- Subcontract exhibits commonly demand it on both general liability and workers' comp, usually as a blanket waiver by endorsement.
- On workers' comp the insurer may charge for the waiver; ask your broker before you sign.
- The certificate of insurance checkbox is not proof. Only the endorsement form on your actual policy makes the waiver real.
Definition: what a waiver of subrogation actually is
A waiver of subrogation is a policy endorsement under which your insurance company agrees, in advance, not to pursue the recovery rights it would normally inherit after paying a claim.
Subrogation is the ordinary right of an insurer that has paid you to "step into your shoes" and sue whoever caused the loss. If a GC's crew damages your work and your carrier pays, your carrier would normally go after the GC to get its money back. A waiver of subrogation cancels that right for the party named in the endorsement.
That is the whole mechanic. You are not buying protection. You are instructing your insurer to give up a lawsuit it could otherwise bring on its own behalf.
What does a waiver of subrogation actually do to my policy?
It takes away your insurer's recovery right against the named party, and nothing else. It does not add you as a protected party, it does not raise your limits, and it does not change what is covered.
This is where most subs get it backwards. A waiver of subrogation and an additional insured endorsement sound similar and sit next to each other on the same exhibit, but they move in opposite directions:
| Clause | Who it protects | What it does to your policy |
|---|---|---|
| Additional insured (CG 20 10 / CG 20 37) | The GC | Extends YOUR coverage to defend/indemnify the GC |
| Waiver of subrogation (CG 24 04 on GL) | The GC | Removes your insurer's right to recover FROM the GC |
| Primary and non-contributory | The GC | Makes your policy pay first, before the GC's |
| Certificate of insurance (COI) | Nobody | Evidences the above but grants no coverage by itself |
The COI is the point people trip on. A checked box or a note in the "Description of Operations" field is evidence, not the grant. Only the endorsement attached to your policy actually waives anything. If a dispute reaches claims, the adjuster reads the endorsement form, not the certificate.
General liability vs. workers' comp waivers
On general liability, the waiver is usually added through a blanket endorsement — commonly the ISO CG 24 04 ("Waiver of Transfer of Rights of Recovery Against Others to Us") — that covers any party you are contractually required to waive.
On workers' comp, it works differently. The waiver is a separate endorsement (specific or blanket), and because comp is a statutory line, many states and rating bureaus require carriers to charge for it. Whether there is a charge, and whether a blanket form is even permitted, depend on your state's rules and your insurer. Some monopolistic-state funds restrict or prohibit these waivers outright.
Blanket vs. scheduled waivers
- A blanket waiver applies automatically to every party with whom you have a written contract requiring one. It is easier to administer and is what most subcontracts effectively ask for.
- A scheduled (specific) waiver names one party. You add a new endorsement for each project or GC.
Most contractors prefer a blanket form so they are not chasing a fresh endorsement for every job. Confirm your policy actually carries the blanket form before you promise one in a subcontract.
How to verify a waiver is real
- Ask your broker for the endorsement form itself (CG 24 04 for GL, the equivalent WC waiver endorsement), not just the COI.
- Check that the form language matches what the subcontract demands — blanket vs. scheduled, and the correct named party if scheduled.
- Ask your broker whether the WC waiver adds a charge on your renewal so there are no billing surprises.
- Keep the endorsement on file with the signed subcontract. If a loss happens, that pairing is what gets read.
Should you agree to it?
In practice you often have no choice — the waiver is a non-negotiable line in the subcontract exhibit, and refusing it means losing the job. That is fine to accept with eyes open, as long as you understand you are giving your carrier's recovery right away and, on comp, possibly paying a charge to do it. What you should push back on is vague or overbroad language, waivers demanded on lines where your carrier won't issue the form, or scheduled waivers that name the wrong entity. Those are the ones to flag to your broker or counsel before signing.
FAQ
Does a waiver of subrogation give me any coverage? No. It removes your insurer's right to recover from the named party after paying a claim. It adds nothing to your own protection.
What is the difference between a waiver of subrogation and additional insured status? Additional insured extends your coverage to defend and indemnify the GC. A waiver of subrogation removes your insurer's right to pursue the GC. They protect the same party but work in opposite directions.
Is the certificate of insurance enough to prove a waiver? No. The COI is evidence only. The endorsement form attached to your actual policy is what grants the waiver.
Sources and further reading
- International Risk Management Institute (IRMI), "Waiver of Subrogation" glossary and commentary (accessed October 2026) — https://www.irmi.com/term/insurance-definitions/waiver-of-subrogation
- Insurance Services Office (ISO) / Verisk, commercial general liability endorsement forms including CG 24 04 (form library, accessed October 2026) — https://www.verisk.com/insurance/products/iso-forms/
- National Council on Compensation Insurance (NCCI), workers' compensation waiver of subrogation endorsement and rating guidance (accessed October 2026) — https://www.ncci.com
- ACORD certificate of insurance forms and user guidance (accessed October 2026) — https://www.acord.org