Errors and Omissions Insurance Explained

 

A web designer launches a client's website.

A consultant delivers business advice that later leads to financial losses.

An accountant makes a mistake on a tax filing.

Even when no property is damaged and nobody is injured, a business can still face expensive lawsuits.

That is where Errors and Omissions Insurance comes in.

This coverage helps protect businesses and professionals when clients claim that a mistake, oversight, or professional error caused financial harm.

What Is Errors and Omissions Insurance?

Errors and Omissions Insurance (E&O Insurance) is a type of Professional Liability Insurance that helps cover claims arising from professional mistakes, negligence, missed deadlines, inaccurate advice, or failure to deliver promised services.

Unlike General Liability Insurance, which focuses on bodily injury and property damage claims, E&O Insurance focuses on financial losses suffered by clients.

If you're unfamiliar with General Liability coverage, see our guide on What Does General Liability Insurance Actually Cover?.

What Does E&O Insurance Cover?

Coverage varies by insurer, but most policies may help pay for:

• Attorney fees
• Court costs
• Settlements
• Judgments
• Investigation expenses
• Claims involving negligence
• Claims involving professional mistakes

Even if a lawsuit is ultimately dismissed, legal defense costs alone can be significant.

What Does E&O Insurance Not Cover?

Most policies exclude:

• Intentional wrongdoing
• Fraud
• Criminal acts
• Bodily injury claims
• Property damage claims
• Employment-related claims

For injury and property damage claims, businesses typically rely on General Liability Insurance instead.

Example

Example:

A marketing consultant recommends a digital advertising strategy to a client.

After spending $25,000 on advertising, the client claims the advice was negligent and files a lawsuit seeking compensation for financial losses.

Even if the consultant did nothing wrong, legal defense costs could easily reach thousands of dollars.

An E&O policy may help cover those defense expenses and any covered settlement.

Who Needs Errors and Omissions Insurance?

Any business that provides advice, expertise, or professional services should consider E&O coverage.

Common examples include:

• Consultants
• Accountants
• Bookkeepers
• Insurance agents
• Real estate professionals
• Architects
• Engineers
• Marketing agencies
• IT consultants
• Web developers
• Freelancers

E&O Insurance vs General Liability Insurance

Coverage Type	E&O Insurance	General Liability
Professional mistakes	✓	✗
Bad advice claims	✓	✗
Bodily injury claims	✗	✓
Property damage claims	✗	✓
Advertising injury claims	Limited	Often Covered

For a deeper comparison, read General Liability vs Professional Liability Insurance: Which One Does Your Business Need?.

How Much Does Errors and Omissions Insurance Cost?

The cost depends on several factors:

• Industry
• Annual revenue
• Number of employees
• Coverage limits
• Claims history
• Business location

Many small businesses pay anywhere from a few hundred to several thousand dollars annually depending on their risk profile.

You can also compare overall business insurance costs in our guide on How Much Does Small Business Insurance Cost in 2026?.

Do Small Businesses Really Need E&O Insurance?

Many owners assume lawsuits only happen to large corporations.

In reality, a single dissatisfied client can create a costly legal dispute for a small business.

Professional service providers often face greater exposure because clients rely on their expertise when making important financial and business decisions.

For businesses evaluating their overall protection strategy, our article on How Much Liability Insurance Do I Actually Need for a Small Business? may also help.

Should You Combine E&O with Other Coverage?

In many cases, yes.

Most businesses benefit from a combination of insurance policies rather than relying on a single form of coverage.

Common insurance packages may include:

• General Liability Insurance
• Errors and Omissions Insurance
• Workers' Compensation Insurance
• Cyber Liability Insurance
• Commercial Property Insurance

Businesses that store customer data should also review Do Small Businesses Need Cyber Liability Insurance in 2026?.

If you have employees, you should also understand Workers' Compensation Insurance: Is It Required for Small Businesses?.

Frequently Asked Questions

Is E&O Insurance the same as Professional Liability Insurance?

In many industries, the terms are used interchangeably.

Can freelancers buy E&O Insurance?

Yes. Many insurers offer policies specifically designed for freelancers and independent contractors.

Does E&O Insurance cover cyber attacks?

Usually not. Cyber incidents typically require Cyber Liability Insurance.

Can a client require E&O coverage?

Yes. Some contracts require businesses to maintain Professional Liability coverage before work begins.

Final Thoughts

Errors and Omissions Insurance helps protect businesses when clients claim that a professional mistake caused financial harm.

For consultants, agencies, accountants, IT professionals, and many other service providers, a single lawsuit can cost far more than the annual premium.

Understanding where E&O coverage fits within your overall insurance strategy can help reduce risk and protect your business as it grows.