General liability and commercial general liability are the same insurance coverage. “General liability” is the conversational shorthand owners and brokers use; “commercial general liability,” or CGL, is the formal name of the standardized policy form that delivers the coverage. When you compare general liability vs. commercial general liability, you’re not comparing two products — you’re comparing two names for one. If a broker quotes you one and a landlord’s contract demands the other, a single policy satisfies both.
Why Both Names Are in Circulation
The industry builds this coverage around a standardized document called the ISO CG 00 01 form, published by the Insurance Services Office. ISO is the leading advisory organization for property and casualty insurance, and its forms are the template most carriers use when writing commercial liability policies. Anyone saying “general liability” is referring to this CGL form whether they know it or not.
The word “commercial” is there to separate business liability from personal liability. Homeowners and renters policies include personal liability, but that protection stops at the business pursuits exclusion, which denies claims arising from anything done for profit. If a customer is hurt during a transaction at your home office, your homeowners insurer will likely reject the claim and tell you to look at a commercial policy. CGL exists to fill exactly that gap, and the shorter name stuck in everyday use.
What the Single Policy Actually Covers
The standard CGL form splits coverage into three parts.
Coverage A: Bodily Injury and Property Damage
This is the core. It pays damages you become legally obligated to pay when a third party suffers physical harm or when you damage someone else’s property. A customer who slips on a freshly mopped floor and breaks a wrist, or an employee who backs a cart into a client’s equipment during a delivery — both fall here. Coverage A responds to “occurrences,” which the policy defines as accidents, including continuous or repeated exposure to conditions that cause harm. A single fall qualifies, and so does a slow-developing problem like water damage from a leaking pipe you installed.
Coverage B: Personal and Advertising Injury
This covers harm that isn’t physical. If the business is sued for libel, slander, or disparaging a competitor’s product in its marketing, Coverage B responds. It also applies to certain advertising offenses, like using another company’s slogan or copyrighted material without permission.
Coverage C: Medical Payments
A smaller, no-fault provision that pays medical expenses when someone is injured on your premises or because of your operations, regardless of whether you were negligent. The typical limit is $5,000 per person. Paying a few hundred dollars in medical bills quickly often prevents a much larger liability claim later.
What the Policy Does Not Cover
Because the name “general liability” sounds like a catch-all, the exclusions are worth knowing. They’re identical whichever name you call the policy by.
- Workplace injuries to your own employees are excluded; workers’ compensation handles those.
- Professional mistakes — bad advice, design errors, flawed professional services — require a professional liability or errors-and-omissions policy.
- Liability from operating motor vehicles is excluded and belongs on a commercial auto policy.
- Damage or injury you expected or intended is never covered. The one narrow exception is bodily injury resulting from reasonable force used to protect people or property.
- Liability from the discharge or release of pollutants at premises you own or occupy is excluded and requires a separate pollution endorsement or policy.
CGL is the foundation. Other policies are built on top of it based on the specific operations of the business.
Where the Real Differences Hide
Two quotes labeled “general liability” or “commercial general liability” can still differ substantially from each other. The variation is inside the policy, not in the name on the cover.
Limits
Every CGL policy has a per-occurrence limit (the maximum paid for any single incident) and a general aggregate limit (the total paid for all covered claims during the policy period, usually one year). The most common configuration for small businesses is $1 million per occurrence and $2 million aggregate. If two separate incidents each produce $1 million in damages, both get paid in full; a third $1 million claim in the same period exhausts the aggregate and comes out of your pocket. Higher-exposure businesses can purchase limits up to $2 million per occurrence and $4 million aggregate, or add a commercial umbrella policy that provides an additional layer, typically in $1 million increments, once the underlying limits are used up.
Occurrence vs. Claims-Made
CGL policies come in two trigger types, and the difference matters more than the name on the policy. An occurrence policy covers incidents that happen during the policy period, regardless of when the claim is filed. If someone slips in your store in 2026 but doesn’t sue until 2028, the 2026 policy responds. A claims-made policy covers only claims first reported during the policy period, regardless of when the incident occurred. Cancel a claims-made policy without replacing it and you lose coverage for incidents that happened while it was active but haven’t yet produced claims. The fix is an extended reporting period, sometimes called tail coverage, which gives you additional time to report. Automatic extensions typically last 30 to 60 days; optional tail coverage can be purchased in one-year increments for up to five years or longer. Most small-business CGL policies are written on occurrence forms, but confirm before you sign.
Defense Costs
One of the most valuable features of a standard CGL policy is the insurer’s duty to defend you against any lawsuit seeking covered damages. Lawyer fees, court costs, expert witnesses, and investigation expenses are the insurer’s responsibility. Under the standard ISO form, these defense costs are paid in addition to the policy limits rather than deducted from them. With a $1 million per-occurrence limit, if the insurer spends $350,000 defending you, the full $1 million remains available to pay a settlement or judgment. The duty to defend is also broader than the duty to pay: the insurer must defend any suit that potentially falls within coverage, even if the allegations turn out to be baseless. The duty ends only when the applicable limit has been exhausted through payment of judgments or settlements. Some non-standard forms treat defense costs differently, so this is worth confirming on any quote.
When You’ll Be Asked for Proof
No federal law and very few state laws require a business to carry this coverage. The requirement almost always comes from contracts. Landlords typically require CGL before signing a commercial lease and will want to be listed as an additional insured. Clients, especially larger companies and government agencies, routinely require proof before awarding contracts. General contractors require it from subcontractors. The document that satisfies all of this is a Certificate of Insurance, a one-page summary of coverage types, policy numbers, limits, and effective dates that your insurer or broker generates on demand.
Being named as an additional insured on someone else’s CGL policy gives you certain rights under their coverage for claims arising from that business relationship. The party demanding additional insured status is shifting the financial burden of potential claims toward the other party’s insurer. Failing to secure that status when a contract requires it leaves you relying solely on the other party’s promise to indemnify you, which is worth considerably less than an insurance policy when a claim actually hits.
Whether the contract calls it general liability or commercial general liability, the same policy — and the same Certificate of Insurance — satisfies the requirement.