The Key Terms in a General Liability Policy Every Business Owner Should Know

What a General Liability Policy Actually Is

A Commercial General Liability (CGL) policy is the foundational liability coverage for virtually every type of business. It covers three broad categories of risk: bodily injury and property damage caused by your operations, personal and advertising injury, and medical payments to third parties injured on your premises. What it is not is a catch-all — it won't cover your own property, your employees' injuries, professional errors, or intentional acts.

Most standard CGL policies are written on the ISO CG 00 01 form. When an insurer says their policy is "ISO-based," they're starting from that template and modifying it with endorsements. Understanding the base form gives you a benchmark to measure what your actual policy adds or subtracts.

One thing business owners consistently underestimate: a general liability policy is not the same as having "full coverage." It is specifically designed for third-party claims — meaning someone other than you or your employees is alleging harm. Your own losses, errors, or employee injuries require separate policies. If you're looking at personal liability for non-business contexts, that's a different product entirely — see our personal liability A-to-Z reference for that coverage type.

The Limits That Actually Control What Gets Paid

The most consequential numbers in your policy are the limits of liability. Understanding how they stack — and how fast they deplete — is critical before you ever file a claim.

Per-Occurrence Limit

This is the ceiling for any single covered event. If a customer slips on a wet floor in your store, fractures a hip, and sues for $800,000 in medical costs and damages, your per-occurrence limit determines how much the insurer will pay from that single claim. A $1,000,000 per-occurrence limit covers that scenario. A $500,000 limit leaves your business exposed for the rest.

General Aggregate Limit

This is the total the insurer pays across all claims in one policy year. If your aggregate is $2,000,000 and you've had three claims totaling $1,800,000, your remaining aggregate is $200,000 — regardless of how large the next claim is. Once the aggregate is gone, you're uninsured for the rest of the policy period. This is not a theoretical risk for businesses in high-claim industries.

Products-Completed Operations Aggregate

This is a separate aggregate that applies only to claims arising from your products or completed work. It runs parallel to the general aggregate, so exhausting one doesn't automatically exhaust the other. Manufacturers, contractors, and anyone who sells physical goods need to pay close attention to this sublimit.

Medical Payments

This is a small, no-fault sublimit — typically $5,000 to $10,000 per person — that pays for minor medical treatment when someone is injured on your premises, without requiring proof of negligence. It's designed to handle small claims quickly and reduce litigation. It does not require the injured party to sue you, which is why many insurers use it as a first-response tool.

Coverage Triggers: Occurrence vs. Claims-Made

One of the most important — and most misunderstood — structural features of a GL policy is how coverage is triggered. Standard CGL policies are occurrence-based. This means coverage applies to incidents that happen during the policy period, regardless of when the claim is actually filed. If something happened on June 15 while your policy was active and a lawsuit is filed two years later after you've switched insurers, your old occurrence-based policy may still respond.

Claims-made policies work differently: coverage only applies if both the incident and the claim filing occur while the policy is in force. These are more common in professional liability (errors and omissions, malpractice) but do appear in some GL forms, particularly for environmental or specialized risks.

Why does this matter? If you cancel an occurrence policy, you don't lose coverage for past incidents. If you cancel a claims-made policy, you might — unless you purchase a tail endorsement (also called an extended reporting period) that preserves your right to file claims for past incidents. When switching insurers, always ask which trigger type each policy uses.

Who Is Actually Covered Under Your Policy

The named insured is whoever — individual, LLC, corporation, or partnership — is listed on the declarations page. But CGL policies extend coverage to others as well, and understanding these categories prevents surprises when a claim involves someone other than the primary business entity.

Automatic Insureds

Standard CGL forms automatically cover certain parties beyond the named insured: executive officers, directors, employees (while acting within their employment duties), and certain volunteers. Coverage is contingent on them acting in the scope of their role for the named insured's business. An employee who causes damage while running a personal errand is generally not covered under the business's CGL.

Additional Insureds by Endorsement

Vendors, landlords, general contractors, and clients frequently require they be named as additional insureds on your policy as a condition of doing business with you. This is added via endorsement (the most common being ISO CG 20 10 and CG 20 37 for contractors). Additional insured status gives them coverage for liability arising from your operations — but it is narrower than full named insured status. They cannot, for example, make claims against you for their own independent negligence without specific endorsement language permitting it.

If your lease or vendor contract requires you to add someone as an additional insured, read the specific endorsement form. Not all additional insured endorsements are created equal, and a generic blanket endorsement may not satisfy the contract's exact requirements.

For business owners also managing a commercial vehicle fleet, additional insured requirements often overlap with your commercial auto policy. See our commercial auto insurance terms guide for how additional insured language works in that context.

The Exclusions That Catch Businesses Off Guard

Exclusions define the edges of your coverage. Experienced underwriters spend more time reading exclusions than coverage grants, because that's where real gaps live. Here are the ones that most often surprise business owners when a claim is denied:

Expected or Intended Injury

If you or an employee deliberately cause harm, the policy won't respond. This seems obvious, but it comes up in cases involving intentional physical altercations, willful violations of safety codes, or deliberate misrepresentation.

Professional Services / Professional Liability

Standard CGL policies exclude claims arising from professional errors, advice, or services. A consultant who gives bad advice, a doctor who misdiagnoses, or an IT firm whose system design fails — those are errors and omissions (E&O) claims, not GL claims. If your business involves professional services, you need a separate professional liability policy.

Employers Liability / Workers Compensation

CGL policies exclude bodily injury to your own employees. That's the domain of workers' compensation. If an employee is injured on the job and sues, your GL policy will not defend you — your workers' comp employer's liability coverage does. These two policies work together, but neither substitutes for the other.

Pollution

The standard pollution exclusion is broad and frequently litigated. It applies to more than chemical spills — courts have applied it to carbon monoxide leaks, mold, and even construction dust in some jurisdictions. If your business involves any hazardous materials or emissions, a pollution liability endorsement or standalone policy is often necessary.

Auto, Aircraft, and Watercraft

Bodily injury and property damage arising from owned autos are excluded from the CGL — that's covered by your commercial auto policy. For business owners with vehicles, these two policies are designed to complement each other, with no overlap intended. See our commercial auto terms guide for how liability limits work on those policies.

Contractual Liability (With Exceptions)

The CGL excludes liability assumed under most contracts — but then carves back coverage for "insured contracts," which include leases, easements, and indemnification agreements in construction contracts. The interaction here is complex, and whether your specific contract qualifies as an "insured contract" under the policy is a question worth reviewing with a broker before signing.

Reading Your Declarations Page and Policy Together

The declarations page ("dec page") is the executive summary. It shows your named insured, policy period, covered locations, limits, and premium. But the dec page is not the policy — it's a shorthand reference that must be read alongside the policy form and all attached endorsements.

Here's the practical reading order every business owner should follow when they receive a policy:

1. Start with the dec page — confirm the named insured is correct (LLC vs. sole proprietor makes a difference), verify the policy period, and write down your per-occurrence and aggregate limits.
2. Read the endorsements page — endorsements modify the base form. An insurer can exclude entire coverage categories or change definitions via endorsement. The endorsements schedule lists every form attached to your policy.
3. Review the exclusions section — in the ISO CG 00 01 form, this is Section I, Coverage A, Exclusions. Read all of them, not just the ones that seem relevant. Surprising exclusions are, by definition, the ones you didn't expect.
4. Confirm your additional insured endorsements — if you've agreed contractually to add parties as additional insureds, confirm the correct endorsement form is attached and the party is listed correctly.

If your business also owns commercial property, recognize that a general liability policy will not cover damage to your own building, equipment, or inventory. That requires a commercial property policy, and the terminology there is different. Our commercial property key terms reference covers the vocabulary you'll encounter there. Alternatively, if a Business Owner Policy makes sense for your operation, that bundled form combines GL and property in one package — with its own set of terms worth understanding before you sign.

Finally, don't treat your GL policy as a static document. Review it at every renewal. Business operations change — you open new locations, add product lines, hire subcontractors — and each change can affect your coverage. A policy that matched your risk profile three years ago may have gaps today. The best time to find those gaps is before a claim, not during one.