Errors and omissions insurance: who needs it, what it covers

Errors and omissions (E&O) insurance usually pays for your defense, and for damages you owe, when a client claims a mistake or oversight in your professional work cost them money. It’s the same coverage as professional liability; the two names are used interchangeably.

You need it if clients pay you for expertise, advice, or a service they rely on, or if a contract requires it, because your general liability policy excludes professional mistakes.

Does errors and omissions insurance cover negligence?

Yes. Negligence in your professional services is the core of what E&O policies are written to cover: a missed step, a wrong number, bad advice, a deadline that slipped, or work that fell short of the care a competent professional would use. The client doesn’t have to be right for the policy to matter. Even a claim with nothing behind it has to be answered, and paying for that defense is a big part of what the policy is for.

Say an IT consultant pushes a configuration change that takes a client’s online store down for three days during a sale, and the client demands $80,000 in lost sales. That’s a negligence claim about professional work, which is what E&O is written for, and a general liability policy wouldn’t touch it, because nothing was physically damaged and nobody was hurt.

Is professional liability the same as E&O?

Yes. Professional liability is the general name, and errors and omissions is the name used most often for consultants, technology firms, agencies, real estate professionals, and insurance agents. Doctors and lawyers call their version malpractice insurance. The idea is the same in each: claims arising from your professional services.

What changes from one profession’s policy to the next is the definition of professional services. Read it closely, because a claim about work that falls outside the definition may not be covered.

Do I need errors and omissions insurance?

If clients pay you for advice, analysis, design, or a service they rely on, and a mistake could cost them money, you have the exposure, and your general liability policy excludes it. Accountants, bookkeepers, IT consultants, marketing agencies, consultants, property managers, and staffing firms all fall in that group. Contracts are the other trigger. Larger clients often require E&O before they sign, commonly at $1,000,000 per claim, and some licenses and professional boards require it too.

How do claims-made coverage and retro dates work?

Most E&O policies are claims-made. They cover claims first made against you, and reported, while the policy is in force, for work done on or after the retroactive date shown on the dec page. That date matters more than most buyers realize.

Say you opened your firm in 2019 and bought E&O with a January 1, 2019 retro date. In 2025 you switch carriers. If the new policy keeps the 2019 retro date, a claim made in 2026 about work from 2021 can be covered, subject to its terms. If the new policy starts the retro date over in 2025, that same claim falls outside it, and neither policy responds.

Three habits keep claims-made coverage working. Keep your retro date when you change carriers. Report a potential claim, like a client’s email threatening to sue, as soon as you get it, because late notice can cost you coverage. When you retire, sell, or close the firm, ask about an extended reporting period, often called tail coverage, which gives you time to report claims about past work after the policy ends.

Are defense costs inside or outside the limit?

On many E&O policies they’re inside, which means every dollar spent on lawyers comes out of the limit. Say you carry $1,000,000, defense runs $150,000, and the case settles for $900,000. Only $850,000 of limit is left for the settlement, so $50,000 of it is yours, on top of your deductible. Ask which kind you have. Some policies put defense outside the limit, or offer that as an option.

Read the consent-to-settle clause too. Some policies cap what they’ll pay if you turn down a settlement the carrier recommends and the case later costs more.

What won’t errors and omissions insurance cover?

The exclusions follow a pattern. E&O answers for financial harm from your professional work, so it usually won’t cover:

• Bodily injury or property damage, which belong to general liability.
• Intentional wrongdoing, fraud, or dishonest acts.
• Claims you knew about, or saw coming, before the policy started, which is why applications ask about any incident that could turn into a claim.
• Work done before the retroactive date.
• Promises of specific results in a contract, beyond the ordinary care a professional owes.
• Fines and penalties assessed against you, and in many policies, disputes over your own fees.

Data breach costs are a separate question. Some technology E&O policies include cyber coverage and some don’t, so if you handle client data, ask.

Questions to ask before you buy E&O

• How does the policy define your professional services, and does that match everything you actually do?
• What is the retroactive date, and will it carry over from your current policy?
• Are defense costs inside the limit or outside it?
• What is the deductible, and does it apply to defense costs?
• What does the consent-to-settle clause say?
• Does it cover work done by subcontractors or freelancers you hire?
• If you handle client data, does it include cyber coverage for a breach, or do you need a separate cyber policy alongside it?
• What extended reporting period options come with it?

If a client contract is asking you for E&O, send the insurance section through our free contract review. When you’re ready, start a quote and tell us what you do for clients.

Quick answers

Does general liability cover professional mistakes?

Not the financial kind. General liability covers bodily injury, property damage, and personal and advertising injury, and many forms add a professional services exclusion on top, so a claim that your advice cost a client money needs E&O.

How much E&O do I need?

Start with what your contracts require, often $1,000,000 per claim. Then ask what a serious mistake on your largest engagement could cost that client, and keep in mind that defense costs may come out of the same limit.