Professional Liability Insurance (E&O)

Professional liability insurance — most commonly called errors and omissions insurance, or E&O — is a claims-made commercial coverage product designed to protect businesses that provide professional services, advice, or expertise from financial losses arising out of claims that their professional work was negligent, inadequate, erroneous, or in breach of a professional obligation. It addresses a specific and significant category of liability that is entirely absent from general liability insurance and requires its own dedicated policy.

The legal basis for most professional liability claims is professional negligence — the allegation that a service provider failed to exercise the level of skill, care, and judgment that a reasonably competent professional in the same field would have applied to the same situation. Unlike general negligence, which focuses on physical harm, professional negligence is about the quality, accuracy, and adequacy of specialized work product, advice, and professional services. Proving or refuting professional negligence requires industry-specific expert testimony, detailed review of work product and communications, and experienced professional liability defense counsel — all of which are expensive to engage without coverage.

The core coverage components of a professional liability policy address the financial consequences of covered claims from filing through resolution. Legal defense coverage pays for the attorneys, expert witnesses, and related costs required to defend your business against a covered claim. This is typically the largest cost component of a professional liability claim — particularly for disputes that proceed through extended litigation before reaching resolution. Defense costs are covered from the moment a claim is reported, regardless of whether the claim ultimately has merit.

Damages coverage pays for the financial compensation awarded to a claimant if a professional liability claim is resolved through settlement or if a judgment is entered against your business. Professional liability settlements and verdicts can be significant — particularly in cases involving large contract values, complex projects, or clients who suffered meaningful financial losses they attribute to your professional services.

Negligence coverage is the foundation of E&O protection. It covers claims alleging that your professional work fell below the applicable standard of care — that an error, omission, or oversight in your services caused the claimant financial harm. This applies to errors in technical work product, inadequate professional advice, flawed analysis or recommendations, and failures in the delivery of professional services that resulted in client losses.

Misrepresentation coverage addresses claims alleging that statements made by your business about your qualifications, capabilities, or the nature and scope of your services were inaccurate and that a client relied on those representations to their detriment. Scope of work disputes — where a client alleges that your business represented it would deliver more than was actually provided — are among the most common misrepresentation-based E&O claims.

Breach of professional duty coverage responds to claims that your business failed to fulfill an obligation arising from the professional relationship — failing to meet a contractual deadline, failing to maintain required professional standards, or failing to perform services in accordance with applicable professional regulations or industry guidelines.

Professional liability policies are written on a claims-made basis, meaning coverage applies to claims that are first made against the insured during the active policy period. This is an important structural distinction from occurrence-based policies and has significant implications for coverage continuity when a business changes carriers or ceases operations. A retroactive date — the earliest date from which covered acts can originate — is a critical policy element, and maintaining continuous coverage with a consistent retroactive date is essential to preserving protection for work performed in prior years.

What professional liability insurance does not cover is as important as what it does. Standard E&O policies exclude bodily injury and property damage — those remain the domain of general liability insurance. They exclude intentional wrongdoing and fraud. They also typically exclude claims arising from criminal conduct, contractual obligations that go beyond standard professional responsibility, and losses that were known or anticipated before the policy’s inception date. Understanding these exclusions and how they interact with your specific service model is part of structuring a professional liability program that actually performs when a claim occurs.

Industry-specific professional liability policies exist for a wide range of professions — architects and engineers carry professional liability under a design errors and omissions framework, technology companies carry tech E&O, financial advisors carry investment advisor E&O, real estate professionals carry real estate E&O, and so on. Each of these specialty forms is underwritten to reflect the specific professional risks, standard of care expectations, and claim patterns common to that profession — and selecting the right policy form for your specific professional services is a critical part of getting E&O coverage right.

At Mythic Insurance, we evaluate your specific professional services, your client base, your contract structures, your project values, and your professional liability claims history before recommending a policy structure. That service-specific review is what produces an E&O policy that genuinely reflects the professional risks your business carries — not a generic professional liability form that may have significant gaps for your specific type of work.