Workers' Comp vs General Liability on a COI Certificate

When you ask a vendor for a certificate of insurance (COI), you’ll see two common coverages: workers' compensation and general liability. Understanding what each one actually covers prevents gaps in protection and keeps your projects moving.

Certificate of Insurance Explained

A COI is a one‑page summary that proves a policy is in force. It lists the policyholder, the insurer, coverage limits, and the types of insurance attached. The COI does not replace the full policy; it simply confirms that the required coverages exist at the time of issuance.

Workers' Compensation: What It Covers

Workers' compensation (often called workers' comp) is mandated by most states. It provides benefits to employees who suffer job‑related injuries or illnesses. On a COI you’ll typically see:

• Coverage type: Workers' Compensation
• Typical minimum limit: State‑required statutory limits (often $1 million per accident)
• What it pays: Medical expenses, wage replacement, and rehabilitation costs for the employee
• Who is protected: The vendor’s employees, not the hiring business

Because the benefits go directly to the injured worker, the hiring business is usually shielded from direct liability for those costs.

General Liability: What It Covers

Commercial General Liability (CGL) protects against third‑party claims for bodily injury, property damage, and personal or advertising injury caused by the vendor’s operations. A COI will list:

• Coverage type: Commercial General Liability
• Typical minimum limit: $1 million per occurrence / $2 million aggregate (common, but contract requirements vary)
• What it pays: Legal defense, settlements, and judgments for covered claims
• Who is protected: The hiring business as an additional insured, if the contract requires it

General liability can also include endorsements such as “waiver of subrogation,” which prevents the insurer from suing the hiring business to recover its payout.

How the Two Differ on a COI

Both coverages appear on the same COI, but they serve distinct purposes:

• Risk focus: Workers' comp covers employee injuries; general liability covers third‑party claims.
• Beneficiary: Workers' comp benefits the vendor’s workers; general liability protects the hiring business (and sometimes the vendor) from lawsuits.
• Policy language: Workers' comp is usually required by law; general liability is contract‑driven and may include extra clauses like “additional insured” or “waiver of subrogation.”

When reviewing a COI, verify that the limits meet your contract, that the vendor’s name matches the policyholder, and that any required endorsements are listed.

Common Mistakes When Reading a COI

Even experienced managers can overlook details. Here are frequent errors:

1. Assuming the COI is the policy. The COI is only a snapshot; the underlying policy could have exclusions that matter.
2. Missing endorsement checks. If your contract asks for “additional insured,” the COI must name your business explicitly.
3. Overlooking expiration dates. A COI may be current today but could expire next month. Set reminders to re‑verify.
4. Confusing limits. The per‑occurrence limit is different from the aggregate limit; both may be relevant to your exposure.

Bottom Line

Workers' comp protects the vendor’s employees; general liability protects you from third‑party claims. Both must be present on a COI, with the right limits and endorsements, to close the insurance gap in any vendor relationship.