Error of Omission Insurance

What is Error of Omission?

Error of omission insurance, often part of a broader errors and omissions (E&O) policy, helps protect professionals and businesses from liability claims stemming from services that were unintentionally left out. These omissions can lead to financial losses for clients or partners, resulting in lawsuits or claims for damages. This type of coverage is essential for industries where decisions, documentation, or designs can significantly impact others — such as consultants, contractors, designers, and service providers.

Who Needs It

Error of omission coverage is valuable for professionals who provide advice, design work, or technical services. This includes building designers, IT consultants, insurance agents, architects, engineers, and event organizers. Clubs, associations, and small organizations that regularly provide services or recommendations to clients can also benefit from this coverage. Even a minor oversight, such as miscommunication in a project plan, can lead to major liability exposures.

What It Typically Covers

This insurance generally covers legal defense costs, settlements, and judgments that arise from claims of negligent omissions. For example, if a building designer neglects to include a critical support structure in blueprints and this omission leads to structural issues, the resulting legal and financial fallout may be covered under an E&O policy. Coverage may also extend to unintentional misstatements, breaches of duty, or delays resulting from omitted actions.

Common Exclusions or Limitations

Like most insurance policies, error of omission coverage comes with exclusions. These may include:

  • Criminal or fraudulent acts
  • Contractual liability not directly related to professional services
  • Claims arising from known issues before the policy start date
  • Bodily injury or property damage (typically covered under general liability)

It’s important to review the policy terms carefully and understand what is considered an excluded risk or an uncovered service.

Factors That Influence Cost

Several underwriting factors affect the cost of error of omission insurance, including:

  • Type of services provided
  • Business size and revenue
  • Claims history
  • Policy limits and deductibles

Higher-risk industries, such as structural engineering or financial advising, may face higher premiums due to the potential impact of professional oversights.

Proof of Insurance & Compliance

Clients or contracts may require proof of E&O coverage before beginning work, especially in regulated industries or large-scale projects. A certificate of insurance serves as evidence of coverage and helps demonstrate your commitment to risk management and professional responsibility.

How to Get a Quote

To get started, prepare details about your services, revenue, and any past claims. A licensed broker can help tailor a policy based on your industry and exposure. Getting a personalized quote ensures that you receive the right level of protection for your specific professional risks.

Request a quote today to protect your business from the cost of unintentional omissions.

For building designers and other technical professionals, understanding the nuances of errors and omissions in building design can offer deeper insight into how this coverage applies to your discipline.

Frequently Asked Questions

Is error of omission insurance the same as professional liability?

Yes, error of omission insurance is a type of professional liability insurance designed to cover mistakes or oversights in professional services.

Does this coverage include property damage or bodily injury?

No, those risks are usually covered under general liability or property insurance policies, not under E&O coverage.

Can small businesses benefit from this insurance?

Absolutely. Small businesses and solo professionals often face the same liability exposures and can benefit greatly from having this protection in place.

What happens if the omission was discovered years after the service was provided?

Coverage for such claims depends on the policy’s retroactive date and whether it’s a claims-made policy. It's important to discuss this with your insurance provider.

Do I need this insurance if I already have general liability coverage?

Yes, general liability typically excludes professional errors or omissions, so having both types of coverage offers broader protection.

Still have questions? Talk to a local insurance expert.

Partners, Programs & Market Access


We maintain relationships with nationally recognized and specialty-focused insurance providers that actively underwrite this class of business. Our network includes both admitted and non-admitted markets, allowing us to match risks—from straightforward accounts to more complex or hard-to-place exposures—with appropriate underwriting partners.


Program availability, coverage terms, and underwriting appetite can vary based on operations, location, and loss history, so access to multiple markets is key to securing the right fit. This approach helps ensure broader coverage options and more competitive placement across a range of risk profiles.



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