Most business owners know about general liability insurance — the policy that covers a client slipping in your office. But if your business provides advice, services, or professional work, your biggest risk isn't physical. It's the claim that you made a mistake. That requires a different policy entirely.
What professional liability covers
Professional liability insurance — often called errors and omissions (E&O) — protects you when a client claims your professional work caused them financial harm. Think missed deadlines, flawed advice, design errors, or failure to deliver promised results.
- Negligence or mistakes in your professional services
- Failure to deliver a service as promised
- Inaccurate advice that costs a client money
- Missed deadlines causing financial damage
- Legal defense costs, even for claims without merit
How it differs from general liability
This distinction trips up many business owners. The two policies cover completely different risks:
| Claim | General Liability | Professional Liability |
|---|---|---|
| Client injured at your office | Yes | No |
| Your advice causes a financial loss | No | Yes |
| You damage a client's property | Yes | No |
| A design error costs the client money | No | Yes |
| You miss a deadline, client loses a deal | No | Yes |
Who needs E&O coverage
- Consultants and coaches
- Marketing and design agencies
- IT and software professionals
- Accountants and bookkeepers
- Real estate agents and brokers
- Anyone giving professional advice for a fee
Why clients increasingly require it
Many companies now require proof of professional liability coverage before signing a contract with a vendor or freelancer. Carrying E&O isn't just protection — it can be the difference between winning and losing a contract.
If a client could sue you for the quality of your work — not just a physical accident — you need professional liability, not just general liability.
What it costs
Premiums depend on your industry, revenue, and risk level. Many solo professionals and small firms pay somewhere between $500 and $2,000 a year. High-risk fields like financial advice or healthcare consulting pay more. Compared to the cost of defending a single claim, it's usually a small price.
Estimate your general liability costs with our business liability calculator, and treat professional liability as a separate, essential layer if your business sells expertise.