Professional Liability (E&O) Insurance: Who Needs It and Why

What professional liability or errors and omissions insurance covers, how claims-made policies work, and which service businesses should consider it.

If your business sells expertise, advice or a service, there's a type of risk that general liability insurance usually won't touch: a client claiming that your work was wrong, late, incomplete or negligent and that it cost them money. That's where professional liability insurance, often called errors and omissions (E&O), comes in.

What professional liability covers

Professional liability insurance is designed to respond to claims that your professional services caused a client a financial loss. Typical allegations include:

  • Negligence: you didn't perform to the standard expected of your profession.
  • Errors or omissions: a mistake, or something you failed to do, caused harm.
  • Misrepresentation: the client says you gave inaccurate information or advice.
  • Missed deadlines: a delay caused the client a loss.

Like general liability, the policy commonly pays for your legal defense and for settlements or judgments up to the policy limit. Defense costs can matter a great deal, because a client can sue even when you did nothing wrong. Some policies pay defense costs in addition to the limit, while others reduce the limit as defense costs are paid, so check how yours works.

How it differs from general liability

General liabilityProfessional liability
Main focusBodily injury, property damage, personal and advertising injuryFinancial loss from your professional services
ExampleA client trips over your equipmentA client says your advice cost them a contract
Typical triggerUsually occurrence-basedUsually claims-made

Many service businesses carry both. Some insurers sell them together or let you add professional liability to a business owner's policy.

Claims-made policies: why timing matters

Most professional liability policies are written on a claims-made basis. In general terms, that means the policy covers claims first made against you while the policy is active, for work performed on or after a retroactive date stated in the policy.

This has practical consequences:

  • Keep coverage continuous. A gap between policies can leave past work unprotected.
  • Protect your retroactive date when switching insurers, so earlier work stays covered.
  • Consider tail coverage (an extended reporting period) if you close your business or retire, because clients can bring claims after the work is done.

Who should consider it

Any business where a client relies on your expertise can face these claims. Examples include:

  • Consultants, coaches and advisers.
  • Designers, marketers and IT professionals.
  • Personal trainers and fitness instructors.
  • Photographers and videographers.
  • Bookkeepers, tax preparers and real estate professionals.

Some professions have licensing rules or industry contracts that require it. Many client contracts, especially with larger companies, ask for proof of professional liability before work begins.

What it usually doesn't cover

  • Intentional wrongdoing, fraud or criminal acts.
  • Bodily injury and property damage (that's general liability's job).
  • Claims from work done before the retroactive date.
  • Fines and penalties, in many cases.
  • Promises or guarantees beyond your normal professional duty.

Reducing your risk

  1. Use clear written contracts that define your scope of work.
  2. Put important advice and changes in writing.
  3. Keep records of deliverables, approvals and client communications.
  4. Avoid promising specific results you can't control.

Frequently asked questions

Is errors and omissions insurance the same as professional liability?

Yes, the terms are generally used for the same type of coverage. Some professions use their own names, such as malpractice insurance for medical providers.

What does claims-made mean?

A claims-made policy generally covers claims that are first made while the policy is active, for work done after the policy's retroactive date. If you cancel, you may need tail coverage to protect against later claims about past work.

Do I need professional liability if I already have general liability?

Possibly. General liability usually excludes claims about professional mistakes that cause financial loss, which is exactly what professional liability is designed for.