Guides
E&O vs general liability: what each one covers
General liability pays for injury and property damage from accidents; E&O pays for financial loss from professional mistakes. Where they overlap and leave gaps.
General liability (CGL) responds when your business causes bodily injury or property damage to someone else, or commits a covered advertising offense. Errors and omissions (E&O) responds when your professional work or advice causes a client or third party a financial loss. A business that sells expertise usually needs both, because each policy is written to leave out what the other covers.
The core difference: what kind of harm
The easiest way to sort a claim is to ask what the claimant lost.
- Physical harm or damage to things: someone was hurt, or tangible property was damaged or lost its use. That is the territory of the commercial general liability policy. The ISO form
CG 00 01pays for "bodily injury" and "property damage" caused by an "occurrence" (an accident), and for "personal and advertising injury" under its Coverage B. Our breakdown of the parts is in Inside the CGL policy: Coverages A, B and C. - Money lost because of advice, design, a deliverable or a missed obligation: the client lost profits, paid for work that has to be redone, or relied on a bad recommendation. That is errors and omissions, also called Professional liability (E&O) insurance explained.
Pure economic loss does not fit the CGL's insuring agreement. The CGL defines "property damage" as physical injury to tangible property (with its loss of use) or loss of use of tangible property that is not physically injured. A client who simply lost money on your advice has neither. Courts generally treat purely financial harm as outside that definition, though the "loss of use" prong produces real disputes where tangible property becomes unusable.
Side-by-side comparison
| General liability (CGL) | Professional liability (E&O) | |
|---|---|---|
| Typical harm covered | Bodily injury, property damage, advertising offenses | Financial loss from negligent professional services |
| Trigger | Usually an occurrence-based policy; the policy in force when the injury or damage happens responds | Usually claims-made; the policy in force when the claim is made and reported responds |
| Typical claimant | Customer, visitor, neighbor, vendor | Client or someone who relied on your work |
| Standard form | ISO CG 00 01 and carrier variations | Carrier-specific forms; no one standard |
| Defense costs | Normally outside the limit | Often inside the limit; read the form |
| Typical exclusions | Expected or intended injury, pollution, professional services if endorsed off, contractual liability limits | Bodily injury and property damage, fraud, prior knowledge, contractual guarantees |
| Contract requirement | Almost every lease and client contract | Common in service, consulting and design contracts |
The trigger difference matters at renewal and when you stop buying. A CGL is an occurrence policy form: you can cancel it and still have coverage for injury that happened while it was in force. A claims-made policy stops responding for later claims unless you buy an extended reporting period; see occurrence vs claims-made policies and tail coverage and extended reporting periods.
Where the two policies overlap and collide
Four situations account for most disputes.
1. Professional error causes bodily injury or property damage
An engineer's miscalculation leads to a failed support beam that injures a worker. The CGL has a plausible insuring agreement, but the insurer may point to a professional services exclusion if one is attached. ISO's program includes CG 22 43 (engineers, architects or surveyors), CG 22 79 (contractors) and CG 22 80 (a limited version for design-build contractors). The professional liability policy, meanwhile, usually excludes bodily injury and property damage. A claim like that can fall between the two policies. A consultant who also performs field work should ask the broker which form is attached and whether the E&O policy restores some protection for physical damage arising from design errors.
2. The CGL has no blanket professional exclusion unless one is added
According to IRMI's analysis of the ISO program, the standard CGL does not automatically exclude all professional services; the form has to be endorsed to do so. Many carriers add their own professional services exclusions as a matter of underwriting. The ISO businessowners form BP 00 03 is different: it carries a professional services exclusion, while the micro version, BP 00 04, omits it, as Independent Agent magazine describes. If you rely on a BOP and sell advice or design, check which form you hold.
3. Advertising and intellectual property
Coverage B of the CGL covers specific offenses, including libel, slander and certain infringements, but generally only when they occur in your own advertisement. An agency whose designer uses an unlicensed photo in a client's campaign is not publishing "your advertisement," and the CGL has exclusions for insureds in media and internet type businesses. That claim usually belongs to a media or professional liability policy; see media liability insurance: defamation, copyright and content claims.
4. Data and software
The CGL's definition of property damage says that electronic data is not tangible property. A coding error that corrupts a client's database, or an outage caused by a configuration mistake, is typically an E&O or Technology E&O insurance for software, SaaS and IT firms claim, and a privacy event may be a cyber claim. The line between those two is explained in Cyber insurance vs tech E&O: which policy pays when.
Which policy responds: some hypothetical claims
These scenarios are illustrative. Actual outcomes depend on the policy wording, the facts and state law.
| Claim | Likely first stop |
|---|---|
| A client visits your office and trips on a loose carpet edge | General liability |
| A consultant's inventory plan leaves a retailer short-stocked, and the retailer sues for lost sales | E&O |
| A subcontracted designer's drawing error lets water into a finished building, damaging the owner's property | Contractor's CGL (if no design exclusion) and professional liability; both should be notified |
| A tax preparer misses an election and the client owes extra tax and penalties | E&O |
| A delivery of your own equipment damages a customer's floor | General liability |
| An IT provider's patch breaks a client's billing system for a week | E&O or tech E&O (and possibly cyber) |
What to do when you are not sure
Tell both insurers. Late notice is the most common way a covered claim becomes an uncovered one, and a claim letter that mentions both an injury and a negligent design deserves notices on both policies. A CGL insurer's the insurer's duty to defend: what triggers it and when it ends is generally triggered by allegations that potentially fall within coverage, not by how you describe the claim, so a lawsuit that alleges bodily injury can obligate the CGL carrier to defend even when the E&O policy will also be involved. Keep copies of both notices and the insurers' responses. Procedure on tendering is in tendering a claim to another party's insurer.
Practical steps before you buy or renew
- Read the exclusions and endorsements on both policies side by side. Look for
CG 22 43-type endorsements on the CGL and the bodily injury and property damage exclusion on the E&O. - Match the professional services definition to the way you work. If you design, inspect, supervise or recommend, make sure the E&O definition names it.
- Compare contract requirements to policies. Many service agreements ask for $1 million or more of each. A contract may also ask for a CGL additional insured endorsement, which E&O forms seldom grant.
- Check defense cost treatment. CGL defense is usually outside the limit; E&O defense may erode it.
- Ask whether a single claim could hit both, and how the other-insurance clauses would sort it out.
The What business insurance do I need? tool can help you list every policy a business with your risk profile typically carries.
Key takeaways
- General liability covers bodily injury, property damage and certain advertising offenses; E&O covers economic loss from professional services.
- A pure financial loss generally is not "property damage" under a CGL, which is why advisers, designers and IT firms need E&O.
- The gap between the policies is widest for design errors that injure people or damage property, and for data and software failures.
- CGL is usually occurrence-based and E&O is usually claims-made, so what happens after a policy ends differs.
- When a claim could fall under either policy, notify both insurers promptly.