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Professional Liability (E&O) Insurance Calculator

Estimate errors and omissions insurance costs based on profession, revenue, claims history, and coverage needs

What Is Professional Liability (E&O) Insurance?

Professional liability insurance, also called errors and omissions (E&O) insurance, protects professionals against claims that their work caused financial harm to a client. Unlike general liability insurance, which covers bodily injury and property damage, E&O coverage focuses on the financial consequences of professional mistakes, oversights, negligence, or failure to deliver promised services.

Any licensed or credentialed professional who provides advice or services for a fee is at risk. A single lawsuit — even a frivolous one — can cost tens of thousands of dollars to defend. E&O coverage pays for legal defense costs, settlements, and judgments, up to the policy limit.

E&O insurance is sometimes called professional indemnity insurance, and in the medical field it is known as malpractice insurance. The principle is the same: a professional made a decision and a client claims they were financially harmed as a result.

Who Needs E&O Insurance?

Nearly any professional who provides expertise or services to clients should consider E&O coverage. High-need professions include:

  • Attorneys and law firms: Legal malpractice claims are common and expensive. Most bar associations require or strongly encourage coverage.
  • Accountants and CPAs: Tax errors, audit failures, and financial advice disputes can trigger large claims.
  • Financial advisors: Clients who lose money may allege bad advice or unsuitable investment recommendations.
  • IT consultants and software developers: Failed implementations, data breaches, or missed deadlines can lead to significant client losses.
  • Engineers and architects: Design errors, specification mistakes, or project management failures carry significant liability.
  • Real estate agents: Failure to disclose, misrepresentation, and transaction errors are common claim triggers.
  • Healthcare providers: Medical malpractice is a specialized form of E&O coverage.
  • Marketing and management consultants: Poor advice that costs a client business revenue may result in a claim.
  • Insurance agents: Incorrectly placing coverage or failing to advise on coverage gaps creates professional liability exposure.

If you provide professional services and a client could claim your advice or actions caused them financial loss, E&O insurance is worth serious consideration.

How E&O Premiums Are Calculated

Underwriters use several factors to determine your professional liability premium:

Profession risk class: Some professions face more litigation than others. Attorneys, financial advisors, and healthcare providers generally pay higher premiums than marketing consultants or IT professionals.

Annual revenue: Higher revenue typically means larger client contracts, larger potential claims, and higher premiums. Most insurers use revenue as the primary rating factor.

Coverage limit: The maximum the policy pays per claim and in aggregate per year. Common limits are $1M per claim / $1M aggregate. Higher limits cost more.

Deductible: The amount you pay out of pocket before the policy pays. Choosing a higher deductible reduces your premium.

Claims history: Prior claims significantly increase premiums. Even one claim in the past five years can raise your rate by 25 to 50 percent or more.

Years in business: New practices are considered higher risk. Established firms with clean claims records often receive preferred rates.

State: Litigation rates, jury award sizes, and legal costs vary by state. California, New York, Florida, and Texas tend to have higher premiums than rural states.

How to Use This Calculator

  1. Select your profession from the dropdown list.
  2. Enter your annual revenue or billings for the current or upcoming year.
  3. Choose your desired coverage limit. Most professionals start with $1,000,000.
  4. Select your preferred deductible. A higher deductible lowers your premium.
  5. Indicate how many years your practice has been in operation.
  6. Disclose your claims history for the past five years honestly.
  7. Select the state where you primarily practice.
  8. Click "Estimate My E&O Premium" to receive an AI-generated estimate.

The calculator returns an estimated annual premium range, a monthly average, risk factors specific to your profile, and tips for reducing your premium. Use this estimate to set a budget before requesting formal quotes from licensed E&O brokers.

FAQs

Q: What is the difference between E&O and general liability insurance?
A: General liability covers bodily injury and property damage claims. E&O (professional liability) covers financial losses caused by professional mistakes, negligence, or failure to deliver services. Most professionals need both types of coverage.
Q: Is E&O insurance required by law?
A: Requirements vary by profession and state. Attorneys, CPAs, insurance agents, real estate agents, and some healthcare providers may be required to carry E&O coverage as a condition of their license. Even when not required, many clients and employers mandate it contractually.
Q: What does "claims-made" mean on an E&O policy?
A: A claims-made policy covers claims filed during the active policy period, regardless of when the work was performed, subject to a retroactive date. Most E&O policies are claims-made. An occurrence policy covers incidents that occurred during the policy period, even if the claim is filed later.
Q: How much E&O coverage do I need?
A: A common starting point is $1,000,000 per claim with $1,000,000 or $2,000,000 aggregate. Consider the size of your typical client contracts, the value of services you provide, and any contractual requirements from clients. Higher-revenue professionals often need $2M or $5M limits.
Q: Can I get E&O insurance if I have a prior claim?
A: Yes, but prior claims will increase your premium and may limit your insurer options. Provide full disclosure when applying. Some specialty insurers focus on professionals with claims history.
Q: What is a retroactive date?
A: The retroactive date is the earliest date from which your E&O policy will cover claims arising from prior work. When switching insurers, try to maintain your original retroactive date to avoid gaps in coverage for past work.
Q: How can I lower my E&O premium?
A: Common ways to reduce your premium include choosing a higher deductible, maintaining a clean claims record, implementing risk management practices, taking continuing education courses, joining professional associations that offer group rates, and comparing quotes from multiple insurers.
Q: Does E&O insurance cover intentional acts?
A: No. E&O policies exclude intentional wrongdoing, fraud, and criminal acts. They are designed to cover honest mistakes and professional negligence, not deliberate misconduct.

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