Insurance terms · 5 min read
E&O vs. General Liability Insurance
Errors & omissions (E&O) insurance and general liability (GL) insurance are the two most commonly confused business policies — and they cover completely different things. The one-line distinction: general liability responds when your business causes bodily injury or property damage to someone else, while E&O responds when your professional work causes a client a financial loss. A client slipping in your lobby is a GL claim; a client suing because your software failed is an E&O claim. This is a neutral, definitional explainer. It defines each coverage, lays out the difference in a side-by-side table, explains why most services and technology companies end up carrying both, and shows how the two fit together in a program. If a contract or landlord is asking for one and you're not sure which you have, this sorts it out.
The short answer (as of August 2026)
General liability insurance covers third-party bodily injury and property damage your business causes — someone hurt at your premises, or a client's property damaged by your operations. Errors & omissions (E&O), also called professional liability, covers a different exposure entirely: a client's financial loss caused by a mistake, oversight, or negligence in your professional services or work product (IRMI). They don't overlap, which is why most services and technology firms carry both.
What General Liability Covers
General liability is the foundational "slip-and-fall" business policy. It responds to third-party claims for bodily injury and property damage — physical harm your business causes to people or property that isn't yours (IRMI). Typical claims include:
- Bodily injury to a third party. A client, vendor, or visitor is injured at your premises or by your operations — the classic slip-and-fall.
- Property damage to others. Your business damages someone else's property while doing your work.
- Personal and advertising injury. Certain reputational harms like libel, slander, or advertising-related claims.
General liability is also the coverage landlords and many contracts require before you can sign a lease or start work, and it's the policy most often evidenced on a certificate of insurance. What it does not touch is the quality or outcome of your professional work — if the harm is a client's financial loss rather than physical injury or property damage, GL doesn't respond. For the coverage in depth, see general liability insurance.
What E&O (Professional Liability) Covers
E&O — errors and omissions, also called professional liability — sits on the opposite side of the line. It responds when your professional services, advice, or work product cause a client a financial loss, with no bodily injury or property damage involved (IRMI). Typical claims include:
- A mistake or oversight in the work that costs the client money — a defect in delivered software, a missed deadline, a miscalculation.
- Negligence allegations — a claim that the work fell below the professional standard of care.
- Failure to deliver as promised — work that didn't perform or integrate the way the client says was represented.
Because it's tied to the work itself, E&O is what enterprise customers require before trusting your service with their business. For technology companies, the tailored version is tech E&O. And because E&O and professional liability are the same coverage under two names, see E&O vs. professional liability if that distinction is the one tripping you up.
E&O vs. General Liability: Side-by-Side
The cleanest way to see the difference is the type of harm each policy addresses (IRMI):
| General liability | E&O / professional liability | |
|---|---|---|
| Core exposure | Bodily injury & property damage | Financial loss from your services |
| Classic claim | Client slips at your office | Your work caused a client a loss |
| Who's harmed | Third parties, physically | Clients, financially |
| Triggered by | Your operations or premises | Your professional work product/advice |
| Commonly required by | Landlords, most vendor contracts | Enterprise & services clients |
| Also known as | Commercial general liability (CGL) | Errors & omissions; tech E&O |
The policies are complements, not substitutes — neither picks up where the other leaves off. A gap in one is a genuine uninsured exposure, not something the other quietly covers.
Why Most Companies Need Both
Because the two policies cover mutually exclusive exposures, most services and technology companies genuinely need both — and often are required to carry both.
- General liability satisfies your lease and most vendor contracts, and covers the physical-world risks any business faces the moment it has premises, visitors, or operations.
- E&O / tech E&O satisfies your enterprise customers and covers the risk that defines a services or software business: that the work itself fails and costs a client money.
Many small businesses buy general liability bundled with property in a Business Owner's Policy (BOP); a BOP runs a median of about $83 a month, roughly $990 a year (Insureon, 2025). E&O is typically added alongside it. For a technology company, a common program is general liability (often via a BOP), tech E&O, and cyber — each addressing a distinct exposure. See what insurance a startup needs for how these fit together.
Build the Right Combination with OnePark Risk
Knowing the difference is step one; getting both policies sized to your contracts is step two. OnePark Risk, an independent brokerage for startups and technology companies, places general liability and E&O/tech E&O with multiple A-rated carriers and reconciles each to what your leases and customer contracts require — so you're neither under-covered nor paying for overlap. Request a coverage review and we'll map the whole program.
Frequently asked questions
What's the difference between E&O and general liability?
General liability covers third-party bodily injury and property damage — like a client slipping at your office. E&O (professional liability) covers a client's financial loss caused by a mistake or negligence in your professional work. They cover different, non-overlapping exposures (IRMI).
Does general liability cover professional mistakes?
No. General liability responds to bodily injury and property damage, not to financial losses caused by your professional services or work product. Those are covered by E&O / professional liability (IRMI).
Do I need both E&O and general liability?
Most services and technology companies do. General liability satisfies landlords and vendor contracts and covers physical-world risks; E&O satisfies enterprise clients and covers the risk that your work fails and costs a client money. Neither substitutes for the other.
Which one do landlords and vendors usually require?
General liability is the coverage most leases and vendor contracts require, and it's the policy most often shown on a certificate of insurance. Enterprise and services clients are the ones that typically require E&O.
Is tech E&O a type of general liability?
No. Tech E&O is a form of E&O / professional liability tailored to technology companies — it covers financial loss from your software or IT work. It's entirely separate from general liability's bodily-injury and property-damage coverage.
Can I get both in one policy?
Not usually in one form, but they're often placed together in a single program. General liability is commonly bundled with property in a BOP (median ~$83/month per Insureon, 2025), with E&O or tech E&O added alongside it.
Sources
This material is general educational information, not legal, tax, or insurance advice. Coverage availability, policy terms, and regulatory requirements vary by state, carrier, and applicant.