Professional Liability (E&O)

Overview

Professional Liability insurance, also called Errors and Omissions (E&O) insurance, covers claims arising from a professional's failure to perform their services competently. Unlike General Liability, which covers physical injury and property damage, Professional Liability covers financial losses caused by professional mistakes, negligence, or failure to deliver promised services.

What It Covers

Professional Liability typically covers:

• Negligent acts: Failure to exercise the standard of care expected of the profession
• Errors: Mistakes in professional work product (incorrect calculations, flawed designs, erroneous advice)
• Omissions: Failure to do something that should have been done (missing a deadline, overlooking a code requirement, failing to disclose material information)
• Defense costs: Legal fees to defend against covered claims, which often exceed the settlement or judgment itself

Who Needs It

Professional Liability is essential for any business that provides advice, designs, plans, or specialized services:

• Architects and engineers: Design errors can cause structural failures, code violations, and construction defects
• Accountants and auditors: Financial statement errors can lead to investor losses
• Attorneys: Legal malpractice claims arise from missed deadlines, conflicts of interest, and bad advice
• IT consultants and software developers: System failures, data breaches, and project delays
• Real estate agents and brokers: Failure to disclose property defects or misrepresentation
• Insurance agents and brokers: Errors in coverage placement that leave clients exposed
• Management consultants: Bad advice leading to business losses

Claims-Made Trigger

Professional Liability policies are almost universally written on a claims-made basis, meaning the claim must be reported during the policy period. This is significant because professional errors often are not discovered until months or years after the work is performed. If the professional changes carriers or lets their policy lapse, claims from prior work may have no coverage unless they purchased an extended reporting period (tail coverage).

Key claims-made concepts for Professional Liability:

• Retroactive date: The earliest date from which claims are covered. "Full prior acts" coverage (no retroactive date restriction) is the broadest.
• Extended reporting period (tail): An optional provision that allows claims to be reported after the policy expires, covering incidents that occurred during the policy period.
• Prior and pending litigation exclusion: Most policies exclude claims arising from situations the insured knew about before the policy inception.

Why It Matters for Compliance

If you hire a professional service provider — an architect designing your building renovation, an engineer inspecting your structure, an IT firm managing your systems — and their work product is defective, Professional Liability is the coverage that responds. Without it, you must pursue the firm directly, and if the firm lacks assets, you may have no recovery.

Professional Liability is not shown as a standard row on the ACORD 25 form (which focuses on liability coverages). It typically appears in a separate section or on a separate certificate. Some compliance programs use the ACORD 25's additional lines or request a standalone Professional Liability certificate.

Common Limits

Example

A commercial property owner hires a structural engineering firm to assess the building's facade. The engineer misses signs of deterioration. Two years later, facade panels fall, injuring a pedestrian. The property owner faces a lawsuit. If the engineering firm carries Professional Liability with an appropriate retroactive date and the claim is reported during an active policy period, the E&O policy covers the engineering firm's defense and any resulting judgment — protecting both the firm and, indirectly, the property owner's ability to recover from the firm.