Contractual liability refers to legal liability that a party assumes by entering into a contract - most commonly through indemnification clauses, hold-harmless agreements, and assumption of liability provisions. In insurance, contractual liability coverage is the portion of a commercial general liability (CGL) policy that covers claims arising from liability the insured has agreed by contract to take on, rather than liability imposed on them by law.
Contractual liability is legal liability assumed by entering into a contract - most commonly through indemnification clauses - and covered by the CGL policy's insured contract provision when the indemnification qualifies.
Without contractual liability coverage in a CGL policy, a vendor or contractor who signs an indemnification agreement may be personally holding a financial obligation that their insurance will not cover - a gap that the underlying contract assumed would be insured.
What Contractual Liability Is
In most commercial relationships, parties sign contracts that contain some version of the following language: "Contractor shall indemnify, defend, and hold harmless Owner from and against any and all claims arising out of or related to Contractor's work." This is an indemnification clause - and by signing it, the contractor has assumed legal liability for the owner's defense costs and potential judgments in covered scenarios.
That assumed liability does not automatically transfer to the contractor's CGL insurer. Standard CGL policies exclude liability "assumed in a contract or agreement" - with a critical exception: the insured contract. If the indemnification falls within the definition of an insured contract, the CGL covers it. If it does not, the contractor is personally on the hook for the defense costs and damages they contractually agreed to absorb.
The Insured Contract Definition
ISO CGL policy form CG 00 01 defines insured contract to include several categories of agreements, the most important being:
- Part f of the insured contract definition: Any contract or agreement pertaining to the conduct of a business where the insured assumes the tort liability of another party
This broad category covers most commercial indemnification agreements - vendor agreements, master service agreements, construction subcontracts, lease agreements with tenant indemnities. When an indemnification agreement qualifies as an insured contract, the CGL covers the contractual liability assumed in it.
However, the insured contract definition has limits. Indemnification clauses that require the contractor to assume liability for the indemnitee's sole negligence often fall outside standard insured contract coverage. Some states also prohibit broad-form indemnification clauses as a matter of law. When an indemnification goes beyond what the insured contract definition covers, the contractor's contractual liability is uninsured.
How Indemnification Creates Contractual Liability Exposure
Consider a practical example. A vendor's technician is injured on a client's premises. The vendor's indemnification agreement with the client requires the vendor to defend and indemnify the client for any claims arising from the vendor's operations - including claims by the vendor's own employees. The employee sues the client. The client tenders the defense to the vendor under the indemnification clause.
If the vendor's CGL policy includes contractual liability coverage and the indemnification qualifies as an insured contract, the CGL pays to defend the client and cover any judgment. If the vendor's policy has a contractual liability exclusion, or if the indemnification is structured beyond what the insured contract definition covers, the vendor faces that defense cost out of pocket.
Why GL Policies With Contractual Liability Exclusions Are Problematic
Some CGL policies - particularly non-standard forms or policies written for high-risk industries - include a contractual liability exclusion that eliminates the insured contract exception. A contractor or vendor who carries such a policy has effectively no coverage for the indemnification obligations they routinely sign in commercial contracts.
This is a material compliance problem that a standard COI review will miss unless the reviewer specifically checks for the contractual liability exclusion. A COI showing $1 million per occurrence / $2 million aggregate means nothing for indemnification purposes if the underlying policy excludes contractual liability.
How to Verify Contractual Liability on a COI
Contractual liability coverage is included as a standard feature of most ISO CGL policies (CG 00 01) and is generally not listed separately on the ACORD 25. Verification requires:
- Confirming the policy is written on a standard ISO CGL form (CG 00 01 or equivalent) that includes the insured contract definition
- Checking the description of operations for any contractual liability limitations or exclusions noted by the insurer
- Requesting a copy of the policy declarations or exclusion schedule if the contract is high-value or the indemnification is broad
- For certificates noting a contractual liability exclusion, requiring the insured to obtain a policy endorsement reinstating coverage or substitute a compliant policy
Hold-Harmless Agreements and the Connection
A hold-harmless agreement is a contractual provision - often part of an indemnification clause - in which one party agrees not to hold the other legally responsible for certain losses. Hold-harmless agreements create the contractual liability that the CGL's insured contract definition must cover. They are the source of the exposure; contractual liability coverage is the response to it.
Broad-form hold-harmless clauses (which shift liability regardless of fault) create greater contractual liability exposure than intermediate-form clauses (which shift liability only for the indemnitor's own negligence). Contracts should be reviewed carefully, and the indemnification scope should be matched against the policy's insured contract coverage.
Common Compliance Mistakes
Accepting a COI without checking for contractual liability exclusions. A standard COI does not disclose policy exclusions. A policy with a contractual liability exclusion can produce a compliant-looking ACORD 25 that provides zero coverage for indemnification obligations.
Assuming ISO CGL automatically covers all indemnification. The insured contract definition covers most commercial indemnification - but not all. Broad-form clauses requiring assumption of the indemnitee's sole negligence, or indemnification for professional services, can fall outside coverage.
Ignoring the distinction between primary and contractual liability. A claim arising from the contractor's own negligence is a primary GL claim. A claim the contractor assumed by contract for a third party's negligence is a contractual liability claim. They are covered differently, and the distinction matters when limits are stacked against multiple claims.
How Bramble Helps
Bramble reads indemnification clauses, hold-harmless agreements, and insurance requirement schedules in contracts to identify what contractual liability coverage is required. It then checks submitted COIs for compliance - including flagging certificates that note contractual liability exclusions or that use non-standard policy forms. With uninsured contractual liability incidents regularly exceeding $500,000, this is not a gap to catch after the fact.
Visit getbramble.com to see how Bramble reads contracts and verifies COIs for contractual liability and every other coverage requirement.