Guides
Product liability vs professional liability
Product liability covers injury or damage from what you sold; professional liability covers financial loss from your advice or services. Where they overlap.
Product liability insurance pays when something you made, sold or distributed injures someone or damages their property. Professional liability (errors and omissions) pays when your advice, design or service fails and the client suffers a financial loss. One responds to physical harm from a product, the other to economic harm from a service, and the two policies are written on different forms with different triggers and different exclusions. A business that does both needs to see how each policy treats the line between them.
The short comparison
| Product liability | Professional liability (E&O) | |
|---|---|---|
| Typical claim | A defective heater causes a fire; a contaminated food product sickens a customer | A designer's error leads to costly rework; bad advice causes a client's loss |
| Harm | Bodily injury or property damage | Financial loss; sometimes no physical harm at all |
| Usual home | The commercial general liability (CGL) policy's products-completed operations hazard, or a standalone products policy | A separate professional liability or E&O policy |
| Standard trigger | Occurrence: injury or damage during the policy period | Claims-made: the claim is made and reported during the policy period |
| Key exclusions | Recall of products, contractual liability beyond insured contracts, expected or intended injury | Bodily injury and property damage, contractual liability, intentional acts, fraud |
| Defense costs | Typically outside the limit on the standard CGL | Often inside the limit |
| Tail issue | Occurrence coverage stays with the policy year | Needs an extended reporting period if you cancel or change carriers |
Details on each: product liability insurance for makers, sellers and importers, Professional liability (E&O) insurance explained and E&O vs general liability: what each one covers.
Product liability
On the standard ISO commercial general liability form (CG 00 01), product liability sits within the "products-completed operations hazard." It covers bodily injury and property damage that occurs away from your premises and arises from your product after you have relinquished possession, or from your completed work. The CGL has a separate products-completed operations aggregate limit, so claims from this hazard erode a different pot of money than premises claims. See products and completed operations coverage.
Under the standard CGL, the claim is triggered by the injury or damage during the policy period, not by when the product was sold. That means a product sold years ago can generate a claim under the policy in force when the injury occurs. A business that stops selling a product still faces exposure, so many manufacturers keep products coverage after discontinuing a line.
What the CGL does not do is as important:
- Recall costs. The standard form excludes the recall of products, work or impaired property. Recall expense needs a separate policy; see product recall insurance.
- The product itself. The cost to repair or replace your own defective product is not "property damage" to others. Damage the product causes to other property is.
- Pure economic loss. If a component simply fails and the customer loses production time, with no injury or physical damage to other property, CGL coverage may not respond.
- Vendors, distributors and importers. A retailer sells your product and gets sued. The retailer typically requests vendors' additional insured status (ISO
CG 20 15) on your policy. If you import, your policy may not cover foreign manufacturers unless you arrange it.
Higher-risk products (children's goods, medical devices, food, supplements, tools, vehicles) may be rated individually or placed in the surplus lines market, with exclusions for specific product types.
Professional liability
Professional liability covers a failure to perform professional services, or errors and omissions in doing so, resulting in a financial loss to a client. It exists because the CGL is built for physical injury and property damage, and CGL policies often exclude professional services outright (by endorsement for design professionals and contractors, among others). Most professional liability policies are claims-made, with a retroactive date. Because they respond to claims made during the policy period, switching carriers or retiring requires attention to prior acts coverage and tail coverage. See prior acts coverage and retroactive dates and tail coverage and extended reporting periods.
Defense costs often reduce the limit (known as "defense inside limits"), and the policy may include a consent-to-settle or "hammer" clause. Neither is a feature of the typical CGL. See defense costs inside vs outside policy limits: why it matters.
Professional liability is the primary coverage for lawyers, accountants, architects, engineers, consultants, real estate agents, insurance agents, financial advisors and technology firms. Technology companies typically use a technology E&O policy, often paired with cyber; see Technology E&O insurance for software, SaaS and IT firms.
Where the two collide
The hard cases are products that contain services and services that include products. Some typical boundaries:
- Software and devices. A smart thermostat that overheats and burns a house may be a product claim. An app that miscalculates dosage and causes injury may be a professional or tech E&O claim, or both. Policies disagree about where software sits, and bodily injury exclusions in tech E&O policies can leave a gap.
- Design-build and contractors. Faulty workmanship injuring someone is general liability; faulty design causing economic loss is professional. Contractors who design as well as build often need contractor's professional liability or a design-build endorsement.
- Advice with a product. A pharmacy that compounds a drug and counsels a patient, a nutrition shop that sells a supplement and recommends a regimen, an installer that selects an HVAC system and sells it: both coverages may be involved, and each insurer may point to the other.
- Medical and health products. Practitioners rely on malpractice forms; manufacturers rely on products forms, and telehealth platforms sit between them. See telehealth and malpractice coverage.
When a claim could fall under either policy, the insurer decides based on the allegations in the complaint, and the duty to defend generally follows allegations that are potentially covered. See the insurer's duty to defend: what triggers it and when it ends. Notice should go to every policy that might apply, rather than waiting for a coverage position. Late notice is a common problem on claims-made policies.
A hypothetical example
Say a company makes and installs commercial kitchen exhaust systems. A design mistake in the duct sizing causes poor ventilation, and a customer's restaurant closes for weeks to retrofit the system with no physical damage. That is a professional (design) claim, so the CGL may not respond to the lost revenue. If the same system had caught fire and burned the restaurant, the fire damage would be a CGL property damage claim, with the products-completed operations hazard in play. In the first case the E&O policy is the one to notify. In the second, notify the CGL carrier and the E&O carrier because the complaint may allege negligent design.
How to check your own program
- Ask your broker where each of your operations falls, and request written confirmation of how your CGL treats professional services.
- Read the CGL for professional services exclusions and recall exclusions, and read the E&O policy for bodily injury and property damage exclusions.
- Compare the triggers (occurrence versus claims-made) and plan for tail.
- Check the vendors endorsement and contract requirements.
- Use the What business insurance do I need? for gaps.
Key takeaways
- Product liability covers physical injury or property damage from what you sold; professional liability covers financial loss from your services or advice.
- Product liability usually sits in the CGL on an occurrence basis; professional liability is a separate, usually claims-made policy.
- Hybrid businesses can fall between the two. Ask your broker to map each operation to a policy and read the exclusions on both.
- Give notice under every policy that might respond.