15.3 Professional Liability and Errors & Omissions
Key Takeaways
- Professional liability/E&O covers economic loss from negligent professional acts - a gap the CGL excludes.
- Most professional policies are claims-made: coverage requires the claim be first made and reported in the policy period for acts on or after the retroactive date.
- Advancing the retroactive date creates a permanent coverage gap; an Extended Reporting Period (tail) protects against late-reported claims.
- Defense-within-limits (eroding limits) means defense costs reduce the limit available for settlement, unlike the CGL.
- Malpractice (medical/legal) and E&O (financial/technical) are the two branches of professional liability.
Professional Liability and Errors & Omissions
Professional liability - often called errors and omissions (E&O) - covers economic loss a client suffers because of a professional's negligent act, error, or omission in rendering professional services. It fills the CGL's biggest gap: the CGL covers bodily injury and property damage but excludes financial harm arising from professional advice or services. An accountant who misfiles a return, an insurance agent who fails to bind requested coverage, or an architect whose design specs cause a budget overrun all face E&O claims, not CGL claims.
There are two broad branches: malpractice (medical/legal/dental professions, where bodily injury can result) and E&O (financial-services and technical professions, where the harm is usually economic).
The Claims-Made Trigger
Most professional liability policies are claims-made, not occurrence. This is the single most heavily tested concept in the line. A claims-made policy responds only if the claim is first made against the insured and reported during the policy period (or extended reporting period), and the wrongful act occurred on or after the retroactive date.
| Element | Occurrence | Claims-Made |
|---|---|---|
| Trigger | Injury during policy period | Claim made during policy period |
| Retroactive date | None | Yes - acts before it are not covered |
| Tail/ERP needed | No | Yes, to cover late-reported claims after expiration |
| Long-tail exposure | Insurer's | Managed by retro date + ERP |
Retroactive Date, Tail, and the Reporting Trap
The retroactive date is the earliest date a wrongful act can occur and still be covered. Acts before it are excluded permanently - even if the claim is reported during an active policy. When an insured switches carriers, advancing (moving forward) the retro date creates a coverage gap for acts between the old and new dates.
The Extended Reporting Period (ERP), or tail, covers claims reported after the policy ends for acts that occurred during the policy term (after the retro date). ISO claims-made forms include a short basic tail (often 60 days for any claim, plus a 5-year window for claims arising from acts reported as circumstances) automatically, while a supplemental ERP (often unlimited time) must be purchased, typically at up to 100-200% of the expiring annual premium.
- Advancing the retro date = gap for prior acts (avoid)
- Buying a tail = protects against late-reported claims after retirement or carrier change
- Failing to report a known circumstance during the term = denied claim later
Defense, Limits, and Common Forms
Professional policies frequently use defense-within-limits (DWL), also called "eroding" or "wasting" limits: defense costs reduce the available limit rather than being paid in addition to it. A $1,000,000 limit with $400,000 spent on defense leaves only $600,000 for the settlement - a critical difference from the CGL, where defense is usually outside the limit.
Worked example: An agent's E&O policy has a $1,000,000 each-claim limit with defense inside the limit and a $25,000 deductible (which also applies to defense). The carrier spends $150,000 defending and settles for $1,000,000. The insured's deductible erodes first; the policy's maximum exposure for indemnity + defense is the $1,000,000 limit, so the most the carrier pays net is $975,000 after the $25,000 deductible, and the insured may owe the settlement balance above the limit. Always read whether defense is inside or outside the limit before computing net recovery.
The Consent-to-Settle (Hammer) Clause and Specialty Forms
Many professional policies, especially medical malpractice and lawyers professional liability, include a consent-to-settle provision: the insurer cannot settle without the insured's agreement, protecting the professional's reputation. To discourage an insured from rejecting a reasonable settlement, the policy adds a "hammer" clause - if the insured refuses to settle within an offered amount and the case later resolves higher, the insured becomes responsible for the excess and a share of added defense.
Common specialty E&O forms candidates should recognize:
| Form / line | Profession |
|---|---|
| Insurance Agents & Brokers E&O | Producers, failure-to-procure claims |
| Lawyers Professional Liability (LPL) | Attorneys, conflicts and missed deadlines |
| Medical Malpractice | Physicians, hospitals - occurrence or claims-made |
| Technology / Cyber E&O | IT vendors, software and data-breach errors |
Note the structural pair: malpractice and LPL pay bodily-injury or reputational harm and often use consent-to-settle, while financial-services E&O (agents, accountants) pays economic loss and rarely gives the insured a settlement veto.
An accountant's claims-made E&O policy has a retroactive date of January 1, 2024. A negligent act occurred December 1, 2023, and the client first sues the accountant on March 1, 2026, while the policy is active. Is the claim covered?
A consultant's E&O policy uses defense-within-limits with a $1,000,000 each-claim limit. The insurer spends $350,000 on defense and the matter settles for $800,000. How does the limit respond?