A customer slips on a wet floor. A contractor accidentally damages a client’s property. A product sold by a business allegedly causes injury. These are the kinds of third-party liability events that make general liability one of the most common building blocks in a small-business insurance program.
The California Department of Insurance describes Commercial General Liability as the standard commercial liability policy used to insure businesses and highlights premises liability, products liability and completed operations among its core concepts.
What a CGL policy is designed to cover
| Exposure | Example | Why it matters |
|---|---|---|
| Premises | A visitor is injured at the business location | Can involve medical costs, legal defense and damages |
| Operations | Work being performed damages someone else’s property | Liability can arise away from the business premises |
| Products | A sold product allegedly causes injury or damage | Exposure can continue after the product leaves the business |
| Completed operations | Finished work later causes covered injury or damage | Claims can emerge after a job is completed |
| Personal / advertising injury | Certain covered offenses involving publication or reputation | Different trigger from bodily injury or physical property damage |
What “general” does not mean
The word general can make the policy sound broader than it is. A CGL contract contains definitions, conditions and exclusions. It is not designed to cover every financial loss a business can cause.
Professional mistakes
If a client alleges that advice, design, consulting or another professional service caused financial harm, professional liability or errors-and-omissions coverage may be the relevant policy rather than CGL.
Employee injuries
Work-related employee injuries are generally handled under workers’ compensation and employers’ liability systems, subject to state law—not ordinary CGL coverage.
Business vehicles
Auto liability exposures are generally handled under commercial auto or other appropriate vehicle coverage. A CGL policy should not be treated as a substitute.
Your own building, inventory or equipment
CGL is liability protection. Commercial property insurance is the usual starting point for physical loss to property the business owns.
Cyber and privacy events
Data breaches, ransomware, notification costs and specialized privacy liabilities often need dedicated cyber coverage.
Understanding limits: per occurrence and aggregate
Liability policies commonly contain a per-occurrence limit and one or more aggregate limits. The occurrence limit caps covered payment for a particular occurrence, while the aggregate can cap covered payments across multiple claims during the policy period. Products-completed operations may have a separate aggregate.
A certificate of insurance can summarize the limits, but it does not rewrite the policy. Contracts with customers or landlords can also create insurance requirements that need endorsements or additional-insured status rather than a certificate alone.
How much general liability insurance does a small business need?
There is no universal number. Consider foot traffic, contract requirements, products, project size, locations, subcontractors, revenue, severity of possible injuries and the assets the business needs to protect. A landlord, client or platform may also impose minimum limits.
- List the places where customers or the public interact with the business.
- Identify products sold and work performed after completion.
- Review customer and lease contracts for required limits and endorsements.
- Separate professional, auto, employee and cyber exposures from CGL.
- Ask how defense costs interact with policy limits.
- Review exclusions that are especially relevant to your industry.
CGL inside a Business Owner’s Policy
Many eligible small businesses buy general liability together with property coverage in a Business Owner’s Policy (BOP). Packaging can be convenient, but the underlying limits and exclusions still matter. A BOP also does not automatically solve specialized risks such as professional liability or cyber.
Frequently asked questions
Is general liability insurance legally required?
Requirements vary. A business may face contractual, landlord, licensing or industry requirements even when a general state law does not mandate CGL for every business.
Does CGL cover a customer who slips in my store?
A covered bodily-injury claim arising from the premises is a classic CGL exposure, subject to the facts and policy terms.
Does it cover bad professional advice?
Usually that exposure is associated with professional liability or E&O coverage rather than relying on CGL.
Does a certificate of insurance prove every contract requirement is covered?
No. A certificate is evidence of stated insurance information; coverage is controlled by the policy and endorsements.
Sources & further reading
Reviewed against public insurance-regulator guidance in September 2026. Policy forms and legal requirements vary by state, insurer and industry.
