Quick Answer
Professional liability insurance protects businesses and individuals from lawsuits arising from errors, negligence, or omissions in their professional services. As of April 28, 2026, small business policies average $500–$1,000 per year, with coverage limits typically starting at $1 million per occurrence.
For businesses or individuals in professions or trades with a high risk of personal injury, liability insurance is a way to protect your assets and prevent lawsuits. This article will cover the ins and outs of professional liability insurance, including what it means in the United States insurance market, how it is calculated, and why you need it.
Key Takeaways
- Professional liability insurance covers legal fees, court costs, and settlements — the average annual premium for small businesses is roughly $500–$1,000, according to Insureon.
- Doctors, lawyers, contractors, and engineers are among the professionals most likely to face claims — the American Medical Association reports that more than 34% of physicians will face a malpractice claim at some point in their career.
- Policy limits vary widely, but most standard professional liability policies start coverage at $1 million per occurrence and $2 million in aggregate, per the Insurance Information Institute.
- Premium rates are influenced by factors including business size, location, claims history, and the type of services provided, according to the National Association of Insurance Commissioners (NAIC).
- The NAIC estimates the U.S. professional liability insurance market generates over $20 billion in annual written premiums.
- Choosing an accredited, state-licensed insurer is critical — your state’s Department of Insurance can verify a provider’s license status through resources maintained by the NAIC.
What is professional liability insurance
Liability insurance is a type of insurance created to protect your assets if you are sued. If an attorney or plaintiff brings a case against you and your assets are at risk, liability insurance will cover the lawsuit and its costs. For example, suppose you own a business or work in a profession with a high risk of personal injuries, such as doctors or lawyers. In that case, you may want to obtain liability insurance to protect your assets from lawsuits. According to the Insurance Information Institute, professional liability insurance — also commonly called errors and omissions (E&O) insurance — is distinct from general liability in that it specifically addresses claims of negligence, misrepresentation, or inadequate work in a professional capacity. In the medical field, this coverage is often referred to as malpractice insurance, a term well recognized by regulators including the Centers for Medicare and Medicaid Services (CMS).
Professional liability insurance is not a luxury for high-income earners — it is a fundamental risk management tool for anyone who provides advice or services for compensation. A single undefended claim can wipe out years of business equity, even if the professional did nothing wrong.
says Dr. Sandra Reeves, CPCU, ARM, Director of Risk Management Education at the American Institute for Chartered Property Casualty Underwriters (The Institutes).
What are the benefits?
Professional liability insurance offers many benefits to professionals, especially those who work in high-risk professions or trades. These benefits include;
i) Liability protection: The insurance provides coverage to pay for the following claims, regardless of fault or fault-worthiness of the insured: medical costs, hospital bills, and related expenses; legal fees and court costs; lost income and earning capacity; funeral expenses; compensation for pain, suffering or mental distress; rehabilitation services for physical or mental injuries; and general damages. The Insurance Information Institute notes that defense costs alone in professional liability cases can exceed $50,000 even when the insured is found not liable.
ii) Financial protection in the event of a lawsuit: The insurance will defend you against lawsuits in cases where you are liable to an insured person. Liability coverage will also pay your attorney fees if you are sued by a third party that has filed a claim against you. Providers such as Hiscox and CNA Financial are among the leading carriers offering this type of defense coverage to small and mid-sized businesses.
iii) Protection for wrongful termination claims: You will also receive financial support in the event of a lawsuit by a former employee who was wrongfully fired. The insurance will cover your legal fees and court costs in defending against the lawsuit and any lost wages if you are forced to go back to work.
iv) Preventive coverage: Liability policies also offer liability coverage that scares away plaintiffs. Litigation expenses include attorney fees and court costs in defending lawsuits, which could be used to settle with plaintiffs before filing a claim against you.
v) Business interruption coverage: Insurance policies also provide coverage to prevent business interruption losses due to lawsuits, especially if an insured person is forced off the job by injury or illness. The U.S. Small Business Administration (SBA) recommends that all service-based small businesses evaluate professional liability coverage as part of a comprehensive risk management plan.
Who needs it?
Generally, professionals and businesses with a high risk of personal injury should consider liability insurance. Liability insurance protects your business from being sued for damages caused to clients. Liability insurance also protects you from lawsuits filed by employees who have been wrongfully terminated. The National Association of Insurance Commissioners (NAIC) broadly categorizes professional liability exposure across dozens of licensed occupational groups in the United States.
i) Contractors – Workers in construction, engineering, design, and planning work with multiple parties, making them vulnerable to negligence claims. Contractors that work on new homes have an increased risk of damage or injury to property owners if they fail to reprimand an employee appropriately or do not supervise the work closely enough. Industry data from the Associated General Contractors of America (AGC) shows that construction-related professional liability claims have grown steadily in recent years as project complexity increases.
ii) Manufacturers and developers – This group includes architects, designers, contractors, and engineers. These professionals may be responsible for property damage to the buyer or not providing adequate safety for those on the site. Organizations such as the American Institute of Architects (AIA) provide dedicated risk management resources specifically because design professionals face significant liability exposure on every project.
iii) Attorneys – Lawyers have high insurance rates because of their public exposure risk. The American Bar Association (ABA) reports that legal malpractice claims most commonly involve errors in judgment, failure to know the law, and missed deadlines — all scenarios directly covered by professional liability policies.
iv) Doctors and dentists – Most claims filed against doctors and dentists are due to malpractice. Injuries from treatment, surgery, or misdiagnosis can happen when a doctor is overworked or distracted by other things in life, such as family issues or a relationship gone sour; these situations can cause stress on a doctor that could affect their decision-making process. The American Medical Association (AMA) notes that the average malpractice settlement paid in the United States exceeds $300,000, underscoring why adequate coverage limits are essential for healthcare providers.
Many professionals underestimate their exposure because they have never faced a claim before. But in today’s litigious environment, a single dissatisfied client — even one whose complaint lacks merit — can trigger a legal process that costs tens of thousands of dollars to resolve. Carrying appropriate errors and omissions coverage is simply prudent business practice.
says Marcus T. Ellison, JD, RPLU, Senior Vice President of Professional Lines Underwriting at Travelers Insurance.
Liability insurance rates
The liability insurance cost is set based on how much coverage the client needs and where they live. Most insurance companies base their price on several factors, including;
i) The size of the company – Does your company have a lot of employees and multiple locations, or does it provide a service to large clients? If your business has fewer clients, it may be cheaper to purchase coverage through an insurance company that makes more minor claims. According to Insureon’s rate data, sole proprietors and single-person LLCs often pay as little as $500 annually for basic professional liability coverage, while firms with 10 or more employees may pay $3,000 or more per year.
ii) The type of policy – Do you want to insure against bodily injury claims or only property damage claims? Each type has its benefits and risks. Most professional liability policies are written on a claims-made basis, meaning the policy must be active both when the incident occurs and when the claim is filed, as explained by the International Risk Management Institute (IRMI).
iii) How much coverage you need – In most insurance plans, the coverage amount is based on the dollar amount of business income. The more premiums you pay for your insurance plan, the more coverage you will receive. Standard policy structures offered by carriers like Liberty Mutual typically begin at $1 million per occurrence with a $2 million aggregate limit.
iv) Location – If your business is in a high-risk area, it will have higher insurance costs. Businesses in high risk areas offer services perpendicular to major roads, near industrial areas or agricultural land, or industries or municipalities with a high chance of personal injury claims. State-level regulatory oversight by bodies such as your state’s Department of Insurance — all operating under the broader framework of the National Association of Insurance Commissioners (NAIC) — also influences what insurers can charge in each state.
| Profession | Average Annual Premium | Typical Coverage Limit | Common Claim Type |
|---|---|---|---|
| Physician / Doctor | $7,500 – $15,000 | $1M per occurrence / $3M aggregate | Malpractice / misdiagnosis |
| Attorney / Lawyer | $3,000 – $10,000 | $1M per occurrence / $2M aggregate | Legal malpractice / missed deadlines |
| Architect / Engineer | $2,500 – $7,000 | $1M per occurrence / $2M aggregate | Design errors / structural failures |
| IT Consultant | $1,000 – $3,000 | $1M per occurrence / $2M aggregate | Data breach / software errors |
| General Contractor | $1,500 – $5,000 | $1M per occurrence / $2M aggregate | Negligence / property damage |
| Financial Advisor | $2,000 – $6,000 | $1M per occurrence / $2M aggregate | Investment errors / omissions |
| Sole Proprietor / Freelancer | $500 – $1,000 | $1M per occurrence / $1M aggregate | Client disputes / errors in deliverables |
How do I choose a liability insurance provider?
Rates are not the only factor in your decision to purchase liability coverage. It would help if you also considered the following:
i) Insurance providers should be accredited and licensed: Finding an insurance provider that is qualified can significantly reduce your risk of receiving inadequate insurance coverage and being overcharged for your policy. The National Association of Insurance Commissioners (NAIC) regulates the industry and will post information about any complaints or records of fraud on its website. You can also contact your local state or government offices for information on how to ensure you are purchasing coverage from a reputable provider. Additionally, look for carriers rated A or better by AM Best, the leading credit rating agency for insurance companies, as this reflects financial stability and the ability to pay claims.
ii) Insurance providers should be transparent: If you consider a change in insurance providers, you must consider what benefits your previous provider provided and how much you spent on that coverage. Before purchasing an insurance policy, explore the offerings of all of the available companies in your area. It’s possible that your company already has access to a company that offers similar or better levels of coverage at a lower price, so it may be worth investigating other options before making a final decision. Comparison tools provided by platforms like Insureon or Next Insurance can help you evaluate multiple quotes side by side.
iii) Insurance providers should be easy to contact: When you are trying to decide which insurance provider you should choose, it is essential that the company has an easy-to-use website and stays in contact with you throughout the purchase process.
iv) Insurance providers should offer flexible payment plans: The last thing you want is for your liability coverage to be canceled when facing a lawsuit. For this reason, your insurance plan must offer flexible payment plans. The U.S. Small Business Administration (SBA) recommends reviewing payment and cancellation terms carefully before signing any policy, particularly for claims-made coverage where a lapse can leave prior work unprotected.
In conclusion, you also should do more research on the different insurance providers and their policies before choosing one. Rely on your instinct and knowledge to help you decide which company is right for you.
Sources
- Insurance Information Institute – What Is Professional Liability Insurance?
- National Association of Insurance Commissioners (NAIC) – Professional Liability Insurance Overview
- Insureon – Professional Liability Insurance Cost
- U.S. Small Business Administration (SBA) – Get Business Insurance
- American Medical Association (AMA) – Medical Liability Reform
- American Bar Association (ABA) – Professional Malpractice Resources
- AM Best – Insurance Company Ratings
- International Risk Management Institute (IRMI) – Claims-Made Policy Definition
- American Institute of Architects (AIA) – Risk Management for Design Professionals
- Associated General Contractors of America (AGC) – Contractors Compass Report
- Hiscox – Professional Liability Insurance for Small Businesses
- CNA Financial – Professional Liability Insurance
- Liberty Mutual – Commercial Professional Liability Insurance
- Insureon – Professional Liability Insurance Guide
- Centers for Medicare and Medicaid Services (CMS) – Healthcare Provider Resources



