15.3 Professional Liability and Errors & Omissions
Key Takeaways
- Professional liability / E&O covers financial harm from negligent professional services - the CGL excludes it because CGL responds only to bodily injury and property damage.
- Most E&O is claims-made: the act must occur on or after the retroactive date AND the claim must be first made during the policy period or an extended reporting period.
- The Extended Reporting Period (tail) lets a cancelled or non-renewed claims-made insured report later claims; supplemental tails are purchased and especially important for retiring professionals.
- Defense costs usually erode (are inside) the E&O limit - the opposite of CGL where defense is outside the limit.
- Common lines include medical malpractice, lawyers, accountants, architects/engineers, agents/brokers, and miscellaneous/technology E&O.
Why CGL Will Not Respond
Professional liability - also called errors and omissions (E&O) or malpractice - covers economic harm arising from rendering or failing to render professional services. The standard CGL excludes this exposure: CGL Coverage A responds to bodily injury and property damage, not the purely financial loss a client suffers when an accountant misfiles a return or an architect's design is defective.
The trigger is negligence in professional duties, judged against the standard of care of a reasonable professional in that field. There is no need for physical injury - a faulty tax opinion, a missed filing deadline, or a misdrawn deed can each trigger E&O even though nothing was physically damaged.
Quick Answer: If a client loses money because a professional did the job poorly, that is E&O - not CGL. CGL handles slip-and-falls in the office; E&O handles the bad advice given inside it.
Claims-Made Coverage and the Retro Date
Most professional liability is written on a claims-made basis, not occurrence. Two dates control coverage:
- Retroactive (retro) date - the earliest date a covered act may have occurred. Acts before the retro date are never covered.
- Policy period - the claim must be first made against the insured during this period (or an extended reporting period).
Both must line up: the wrongful act must occur on or after the retro date, AND the claim must be reported during the policy period or tail.
| Scenario | Act Date | Claim Reported | Retro Date 1/1/2024 | Covered? |
|---|---|---|---|---|
| A | 6/2025 | 9/2025 (in force) | after retro | Yes |
| B | 5/2023 | 9/2025 | before retro | No - act predates retro |
| C | 6/2025 | claim after policy ends, no tail | n/a | No - reported too late |
Extended Reporting Period (Tail)
When a claims-made policy is cancelled or not renewed, an Extended Reporting Period (ERP) - the tail - lets the insured report claims for acts that happened before expiration. A basic tail is automatic and short (often 60 days for claims, longer for acts); a supplemental (purchased) tail can extend reporting for years. Tails matter most for retiring professionals who stop buying coverage but remain exposed to late-emerging claims.
An E&O policy is claims-made with a retroactive date of 1/1/2022. A wrongful act occurred 3/2021 and the client first sues in 7/2024 while the policy is in force. Is the claim covered?
Defense Costs and Common E&O Lines
A distinctive feature of professional liability is defense within limits (a "wasting" or "eroding" limit). Defense costs are typically subtracted from the policy limit, unlike CGL where defense is outside the limit. A $1,000,000 E&O policy that spends $300,000 defending a claim has only $700,000 left to pay a settlement.
Worked Example
Limit $1,000,000; defense costs $250,000; settlement $900,000.
- Defense erodes the limit: $1,000,000 - $250,000 = $750,000 remaining
- Settlement of $900,000 exceeds the remaining limit
- Insurer pays only $750,000 toward the settlement; the insured owes the $150,000 balance.
Common professional liability lines include:
- Medical malpractice (physicians, hospitals)
- Lawyers professional liability
- Accountants E&O
- Architects & engineers E&O
- Insurance agents/brokers E&O
- Technology / miscellaneous professional E&O
Exam Tip: Watch for whether defense is inside or outside the limit. Most professional liability erodes the limit with defense; this is the opposite of CGL and a favorite distractor.
Each line carries field-specific exclusions: medical malpractice excludes sexual misconduct beyond a sub-limit, lawyers E&O excludes acts as a fiduciary outside legal practice, and agents/brokers E&O excludes commingling of premium funds and intentional misrepresentation. Many states also require licensed producers and certain professionals to carry minimum E&O limits as a condition of licensure, which is why agents themselves are a tested E&O class.
Occurrence vs. Claims-Made: Why the Switch
Professional and many specialty liability lines moved from occurrence to claims-made because the long-tail nature of professional negligence made occurrence pricing unreliable. A surgeon's act in 2010 might not surface as a claim until 2020; under an occurrence policy the 2010 insurer would owe coverage a decade later at premiums set with stale assumptions. Claims-made ties coverage to the year the claim is reported, letting insurers reserve and price more accurately.
Key contrasts to memorize:
- Occurrence - coverage triggered by when the act/injury HAPPENED, regardless of when reported. The policy in force at the time of the event responds forever.
- Claims-made - coverage triggered by when the claim is REPORTED, provided the act is on/after the retro date. The policy in force when the claim arrives responds.
- Stacking limits - moving a retro date forward (a "laser") narrows coverage; keeping a constant retro date across renewals preserves the full back-coverage.
Consent-to-Settle and the Hammer Clause
Many professional liability policies contain a consent-to-settle provision: the insurer cannot settle a claim without the insured professional's agreement, protecting the professional's reputation. Paired with this is the hammer clause. If the insurer wants to settle and the insured refuses, the hammer clause caps the insurer's future exposure at the rejected settlement amount plus defense to that date - the insured bears any excess.
Worked Hammer-Clause Example
The insurer can settle a malpractice suit for $400,000 but the doctor refuses to consent. The case proceeds and a jury awards $900,000.
- Insurer's capped exposure = the $400,000 it could have settled for (plus defense incurred to the refusal date)
- The doctor is personally responsible for the $500,000 difference
A "soft" hammer clause splits the excess (e.g., 50/50); a "hard" hammer puts the full excess on the insured. Either way, refusing a reasonable settlement is financially dangerous.
A claims-made E&O policy has a $1,000,000 limit with defense costs INSIDE the limit. The insurer spends $400,000 defending and then settles for $800,000. What does the insurer pay toward the settlement?