15.3 Professional Liability and Errors & Omissions

The Gap the CGL Leaves Open

A Commercial General Liability policy covers bodily injury and property damage from premises and operations hazards. It deliberately excludes liability arising out of the rendering or failure to render professional services. That exclusion creates the need for professional liability, also called errors & omissions (E&O).

Quick Answer: Professional liability / E&O covers the economic (and sometimes bodily) harm a client suffers because a professional was negligent in performing professional duties - a loss the CGL excludes.

The defining trigger is a negligent act, error, or omission in professional work - bad advice, a missed deadline, a flawed design, a misdiagnosis. The harm is often purely financial (a client loses money) rather than physical, which is exactly why the CGL, built around bodily injury and property damage, does not respond.

The Major Classes

Directors & officers and employment practices liability are related management-liability lines, treated separately in Section 15.4.

Why Claims-Made Dominates

Professional negligence often surfaces years after the work is done - a building flaw appears a decade later; a tax error is found in an audit three years on. To control this long tail, insurers write E&O on a claims-made basis rather than occurrence.

• Occurrence policy: Responds if the wrongful act occurred during the policy period, no matter when the claim is made.
• Claims-made policy: Responds only if the claim is first made (and reported) during the policy period (or an extended reporting period), and the act happened on or after the retroactive date.

Retroactive Date and Extended Reporting Periods

Two dates define the covered window of a claims-made E&O policy:

• Retroactive date: The earliest date a covered wrongful act can have occurred. A claim arising from work done before the retroactive date is not covered, even if the claim is made during the policy period. Advancing (moving forward) the retroactive date erodes coverage and is a red flag for the insured.
• Extended Reporting Period (ERP) / tail: When a claims-made policy ends (or the retroactive date would otherwise leave the insured exposed), an ERP lets the insured report claims after expiration for wrongful acts committed during the active coverage window. A basic ERP is automatic and short (often 60 days); a supplemental ERP is purchased and longer.

Worked Coverage Example

An architect's claims-made E&O policy runs Jan 1, 2026 - Jan 1, 2027, with a retroactive date of Jan 1, 2022.

• A design error made in 2023, with a claim first made and reported in June 2026 - covered (act after retro date; claim made and reported during the period).
• A design error made in 2020, claim made in 2026 - not covered (act predates the Jan 1, 2022 retroactive date).
• An error made in 2024, claim first made in March 2027 after the policy lapses with no ERP - not covered unless an ERP applies.

Consent-to-Settle (Hammer) Clause

Many professional policies - especially medical and legal malpractice - contain a consent-to-settle provision. Because a settlement can damage a professional's reputation, the insured may have the right to refuse a settlement the insurer recommends. The hammer clause then caps the insurer's exposure: if the insured refuses to settle at an amount the insurer could have settled for, the insurer's liability is limited to that settlement amount plus defense to that date, and the insured bears any excess.

Common Exam Traps

• CGL does not cover professional services - the professional-services exclusion is why E&O exists.
• Claims-made requires both made and reported in the period (or an ERP), AND an act on/after the retroactive date.
• Advancing the retroactive date shrinks coverage - it is bad for the insured.
• ERP/tail protects reporting, not the act date - the act must still fall within the active retro-to-expiration window.
• The hammer clause penalizes an insured who blocks a reasonable settlement.

Errors & Omissions vs. Malpractice

Professional liability protects those whose advice or services can cause financial or bodily harm — an exposure the CGL excludes. The exam separates two flavors:

• Errors & Omissions (E&O) — covers financial harm from a professional's mistakes (insurance agents, accountants, architects, real estate agents, lawyers).
• Malpractice — covers bodily injury from professional services (physicians, dentists, surgeons).

Both are typically written on a claims-made basis with a retroactive date and an Extended Reporting Period (tail), because professional claims often surface years after the act.

Distinctive Features

Worked E&O Scenario

An insurance agent forgets to add a customer's new building to a policy; a fire destroys it and the customer sues the agent for the uninsured loss. The agent's E&O policy — if a claims-made policy is in force when the claim is made and the omission occurred after the retroactive date — pays the customer's financial loss and the agent's defense, though defense costs may erode the limit. The exam stresses that E&O fills the CGL's professional-services gap, runs on a claims-made trigger, and often pays defense inside the limit, which is why the retroactive date and adequate limits are critical.