What professional liability insurance covers
Professional liability insurance protects businesses and individuals who give advice or provide specialized services. The SBA describes it as coverage for losses from malpractice, errors and negligence. Typical claims allege a mistake, a missed deadline, a failure to deliver what was promised, negligent advice or a breach of professional duty. The policy pays defense costs and covered settlements or judgments. Depending on the profession it is called:
- Errors and omissions (E&O) for consultants, technology firms, real estate agents, insurance agents and many others
- Malpractice for physicians, dentists, nurses, lawyers and accountants
- Professional liability for architects, engineers and design professionals
General liability does not fill this gap: it covers bodily injury and property damage, not financial loss caused by professional mistakes.
Claims-made coverage, retro dates and tail
Most professional liability policies are claims-made: the policy in force when the claim is first made and reported responds, as long as the work took place after the retroactive date. Keeping the same retro date when renewing or changing insurers preserves coverage for past work. When you retire, sell the firm or let coverage lapse, an extended reporting period, often called tail coverage, gives you time to report claims arising from earlier work. Medical professionals sometimes buy occurrence policies instead.
Key policy features
| Feature | What to check |
|---|---|
| Defense within limits | Many policies pay defense costs from the limit, so a long lawsuit reduces money left for settlement. |
| Consent to settle | Whether you can refuse a settlement and what happens if you do (the "hammer" clause). |
| Prior acts | Coverage for work done before the policy started. |
| Definition of services | It must match everything you actually do. |
| Retention | The amount you pay per claim; some policies apply it only to damages, not to defense. |
Common exclusions
Policies generally exclude intentional, fraudulent or criminal acts, claims known before the policy began, contractual guarantees beyond normal professional duty, fines and penalties where not insurable, and, for non-medical E&O, bodily injury and property damage. Data breaches are usually covered under cyber insurance rather than E&O, although technology E&O forms often combine both.
Who needs it and what drives the price
Clients, lenders and government contracts increasingly require evidence of E&O coverage. Licensing rules or hospital credentialing require it for some professions in some states, so check with your licensing board. Premium depends on the profession and specialty, revenue, the size and type of clients, contract terms, years in practice, claims history, the limit and the retention. The professional liability calculator gives an indicative estimate.
How claims work
Report any claim, demand or circumstance that could lead to one as soon as you learn of it, within the policy period, because late notice can void coverage under a claims-made policy. Do not admit liability or offer refunds without the insurer's agreement, and preserve contracts, emails and work files. Many policies also include supplementary coverages with small sublimits, such as defense of licensing board or disciplinary proceedings, help responding to subpoenas, and reimbursement of lost earnings while you attend trial. These extras can matter as much as the main limit for an individual practitioner.
State and international notes
Medical malpractice is shaped by state tort laws, including caps on damages in some states. Firms serving clients abroad should check whether the policy covers claims brought outside the United States (worldwide jurisdiction) and whether local admitted policies are required in countries where they have offices. Polis Re helps you compare insurers and request quotes.
