What is Professional Liability?
Professional liability is annual claims-made coverage for service-based businesses against claims that your professional work fell short of standard practice and caused the client a financial loss. It is structured as a third-party liability policy that pays defense costs, settlements, and judgments up to the policy limit. The retroactive date governs how far back claims can reach.
What is Errors & Omissions?
Errors and omissions is the same coverage — same form, same structure, same pricing mechanics. The term is used interchangeably with PL in most contexts. Where it dominates is licensed-profession contexts: real estate brokers, insurance agency owners, financial advisors, and registered investment advisors all almost always say E&O.
Side-by-side comparison
| Feature | Professional Liability (PL) | Errors & Omissions (E&O) |
|---|---|---|
| Coverage | Negligence, errors, omissions, inadequate work | Negligence, errors, omissions, inadequate work |
| Structure | Claims-made with retroactive date | Claims-made with retroactive date |
| Defense costs | Inside or outside the limit (varies) | Inside or outside the limit (varies) |
| Common audience | Consultants, IT services, designers, accountants | Real estate, insurance agents, financial advisors |
| Typical limits | $1M / $2M / $5M aggregate | $1M / $2M / $5M aggregate |
| Excluded | Bodily injury, property damage, intentional acts | Bodily injury, property damage, intentional acts |
When to use which term
- If your contract or carrier requires "E&O," ask for E&O.
- If your contract requires "professional liability," ask for PL.
- If your industry uses one term internally (real estate uses E&O), use that one with vendors and clients.
- If a quote form lists both, pick whichever description matches your business — the underlying policy is identical.
Need PL/E&O for your service business?
Examples of claims under each label
- Consultant (PL): A management recommendation produced a financial loss for the client; the policy defends the negligence allegation and pays settlement up to limit.
- Real estate broker (E&O): A buyer alleges the agent failed to disclose a material defect; the policy defends and pays settlement.
- Insurance agent (E&O): A customer requested coverage; the agency did not bind; a loss occurred during the gap; the policy defends and pays.
- IT services (PL): An MSP-managed system experienced an outage attributed to negligent maintenance; the policy defends and pays.
Frequently asked questions
Functionally, yes. Both are claims-made liability for service-based businesses against negligence, errors, omissions, and inadequate work. The terminology splits along industry lines — PL is the broader umbrella term; E&O is what licensed professions (real estate, insurance agency, financial advisory) use.
Use whichever your industry uses. Real estate brokers ask for E&O; consultants ask for professional liability; some IT operators use both interchangeably. The policy form will be the same regardless.
No. Carriers price by class code, revenue, claims history, and limit selection — not by what you call the policy. Two consultants with identical risk profiles pay the same premium whether the carrier calls it PL or E&O.
Those are separate lines. Cyber covers data breach and ransomware. Tech E&O is a specialty form for software vendors that combines PL with a cyber endorsement. We can structure both alongside standard PL when needed.