Overview
Adding additional insureds to a commercial general liability policy is a common requirement in construction and contracting work. An additional insured is a person or organization added to a policy so they receive some of the policy’s liability protections when they are exposed to risk because of your operations or work.
Historically, contractors would request a separate endorsement naming each additional insured. To reduce paperwork, insurers and form providers offer blanket additional insured endorsements that extend coverage to parties identified in a contract or agreement.
Key takeaways
- Blanket additional insured endorsements automate adding many contract-required insureds, reducing paperwork.
- Blanket coverage usually requires a written contract that names the party or obligates the contractor to provide coverage.
- Blanket endorsements vary in scope—some extend both defense and indemnity, others are more limited.
- Keep copies of contracts and agreements to prove who qualifies as an additional insured if a claim arises.
How it works
A blanket endorsement changes the policy language so that a person or organization becomes an additional insured automatically when specific contract conditions are met. For example, many forms state that a person or organization is covered when you are performing operations for them and you have agreed in writing to add them.
Because endorsements differ by insurer and form, review the precise language in your policy and the contract. For practical guidance about these blanket endorsements and how they are commonly used, see Blanket Additional Insureds.
What it may cover (and what it may not)
Additional insured status often provides defense coverage and limited liability protection for claims arising from the named insured’s work. The scope can include ongoing operations, completed operations, or both, depending on the endorsement wording.
Endorsements commonly exclude coverage for the additional insured’s sole negligence, contractual liabilities unrelated to the named insured’s operations, or claims outside the policy’s coverage territory. For a general explanation of what additional insured endorsements tend to include and exclude in construction settings, review Understanding Additional Insureds in Construction Insurance.
Common mistakes to avoid
Assuming every additional insured endorsement provides the same protections is a frequent error; endorsement forms and policy language vary widely. Always read the exact endorsement attached to the policy.
Another mistake is failing to keep the contract or written agreement that triggers blanket coverage. Without that document, insurers may dispute whether the party was entitled to additional insured status at the time of loss.
Also avoid relying on verbal promises. Most blanket endorsements require a written contract or agreement to activate additional insured status.
Questions to ask an agent
Does the blanket endorsement on my policy extend coverage for both ongoing and completed operations?
Will the endorsement provide defense and indemnity for the additional insured, or are there limits and exclusions that reduce protection?
What records should I keep to prove a contract or agreement triggers coverage under a blanket endorsement?
Next steps
Compare the endorsement language on your liability policy to the contract requirements on your projects and request clarifications in writing if needed. If you need a closer look at how contractors commonly handle additional insured requests, see Understanding Additional Insured Requests in Contractor Insurance.
If anything in your contract obligates you to add another party as an additional insured, save a copy of the contract with your insurance records and confirm coverage with your carrier or broker. If you prefer direct help, talk to an agent who can review your endorsements and suggest changes.
Frequently Asked Questions
What is a blanket additional insured endorsement?
A blanket endorsement automatically adds people or organizations as additional insureds when a contract or agreement requires it, eliminating the need for separate named endorsements for each party.
Does being an additional insured mean full coverage for the added party?
Not always; additional insured status may be limited by the endorsement’s wording and commonly excludes coverage for the additional insured’s sole negligence or claims unrelated to the named insured’s operations.
How can I prove someone should be an additional insured under a blanket endorsement?
Keep written contracts, certificates of insurance, and any agreements that show the contractor agreed to add the party as an additional insured—these documents support the claim for coverage.
Should subcontractors ask to be added as additional insureds on the contractor’s policy?
Subcontractors typically request that their general contractor name them as additional insureds when the contract requires such coverage, but the exact need depends on contract terms and exposure.