Glossary
Contractual liability
Responsibility you take on by agreeing in a contract to cover another party's losses, and the limited way a general liability policy responds to it.
Also called: liability assumed under contract, contractual liability coverage, assumed liability
Contractual liability is the legal responsibility you accept in a contract, most often through an indemnity or hold harmless clause in which you agree to pay claims made against the other party. A general contractor's subcontract may require you to defend and indemnify the contractor for injuries arising from your work.
The ISO CGL (CG 00 01) excludes liability assumed in a contract, then gives most of it back. Exclusion b does not apply to liability you would have without the contract, or to liability assumed in an "insured contract." That definition includes a lease of premises, an easement, and, most important, the part of any other contract pertaining to your business under which you assume another party's tort liability to a third person for bodily injury or property damage.
Two pitfalls recur. The endorsement CG 21 39 (Contractual Liability Limitation) deletes that last category, stripping out the coverage a subcontract indemnity depends on. And state anti-indemnity statutes limit what a construction contract can make you assume, so the wording of the clause and the state both matter. Before signing, have the contract's insurance and indemnity sections read against your policy.
See contractual liability coverage and insured contracts for how this plays out, insured contract for the definition, and hold harmless agreement for the clause itself.
Last reviewed October 10, 2026