General liability vs professional liability

A small business is sued for one of two broad reasons. Either something it did physically hurt a person or damaged property, a customer slipped, a ladder fell on a car, a product caught fire, or something it did professionally cost a client money without anyone being hurt, a design was wrong, a return was filed late, a system was configured badly, advice turned out to be poor. The first is the province of general liability. The second is the province of professional liability, also sold as errors and omissions coverage. Each policy is written to exclude the other's territory, so a business exposed to both needs both.

The confusion arises because the two share the word liability and because many businesses have both exposures at once. A contractor who also designs, a consultant who also visits sites, an IT firm that also installs hardware. Knowing where the line runs is what lets an owner buy the right pair rather than one policy and a false sense that it covers everything.

What general liability covers

A commercial general liability policy responds when a third party claims bodily injury or property damage caused by your premises, your operations, your completed work or your products. It also covers personal and advertising injury, a set of offences including libel, slander, copyright infringement in an advertisement and wrongful eviction. It pays the damages you are legally obliged to pay up to the per-occurrence limit, subject to an annual aggregate, and it pays the cost of defending the claim, usually in addition to the limits. It is written on an occurrence trigger: the injury or damage has to happen during the policy period, and the claim can arrive later.

It is the policy that landlords, general contractors and customers ask to see on a certificate of insurance, and it is the one that additional insured endorsements attach to. It is priced on the size of the operation, measured by payroll, sales or square footage depending on the class, and on the class itself: a roofer and a bookkeeper with identical revenue pay very different premiums for the same limits.

What professional liability covers

A professional liability policy responds when a client or a third party claims a financial loss caused by a negligent act, error or omission in the performance of your professional services. There need be no injury and no damaged property. A structural calculation that forces a redesign, a missed filing deadline that triggers penalties, an insurance agent who fails to bind a coverage, a software implementation that corrupts a client's data, a real estate agent who misstates a boundary. The policy pays the damages and the defence costs, usually within the limit rather than in addition to it, so a long defence erodes what is left for a settlement.

It is almost always written claims-made, with a retroactive date, which means the claim has to be made during the policy period and the work has to postdate the retroactive date. Coverage is defined by the professional services described in the application, and work outside that description may not be covered. Some professions have specialised versions: medical malpractice, lawyers' professional liability, architects and engineers, technology errors and omissions, miscellaneous professional liability for everyone else.

The mechanism that actually differs

The general liability form contains an exclusion for damages arising out of the rendering of or failure to render professional services, and most carriers reinforce it with a specific professional services exclusion endorsement. The professional liability form, for its part, excludes bodily injury and property damage except where they arise directly from a professional error, and many exclude them outright. The two policies are drawn to meet at a boundary rather than to overlap, and the boundary is the nature of the harm and the nature of the act.

Ask two questions of any claim. Was there bodily injury or physical damage to property? If yes, general liability is the starting point. Did the harm flow from professional judgement, advice or design rather than from a physical act or a condition? If yes, professional liability is the starting point. Claims that answer yes to both, an engineer's design error that leads to a collapse that injures a worker, are the hard cases, and they are the reason carriers that write both lines for one insured, and coordinate the wording, are worth seeking out.

A worked example, landing on each side

Suppose a small landscape design firm in St. George carries general liability with a $1,000,000 per-occurrence limit and professional liability with a $500,000 limit. During an installation, a crew member's trailer rolls into a client's parked car and does $9,000 of damage. That is property damage from operations, squarely general liability; the carrier pays $9,000 and the professional policy is not involved. The next month, a different client discovers that the firm's irrigation design routed lines through a utility easement, and the client spends $30,000 relocating them under a demand from the utility. Nothing was physically damaged by the firm; the loss flows from a design error. That is a professional liability claim, and the general liability carrier would decline it under the professional services exclusion.

Now suppose the firm had bought only general liability, as many small service businesses do, reasoning that the trailer is the kind of thing that goes wrong. The $30,000 design claim is uninsured and the defence costs are the firm's own. Say the professional policy would have cost $1,400 a year. The example is invented, but the pattern of a service business insured for the accident it can picture and not for the error it cannot is the commonest gap we see in commercial accounts.

Who needs which

Most businesses need general liability. The question is who also needs professional liability, and the answer is broader than the word professional suggests.

• General liability alone can be enough for a business that sells goods or performs physical work with no advisory component: a retailer, a cleaning company, a mover, a landscaper who installs what others design.
• Professional liability alone is rarely enough, because even a desk-bound consultant has an office, visits clients and can be sued for slander; a small general liability policy or a business owners policy fills that in cheaply.
• Both are needed by anyone who advises, designs, calculates, inspects, brokers, or handles a client's data or money: architects, engineers, accountants, consultants, IT firms, real estate and insurance agents, home inspectors, marketing agencies, staffing firms.
• Both are also needed by contractors whose trade includes design-build work, where a plan they drew rather than a wall they built causes the loss.
• Medical, dental, legal and other licensed practices need their profession's own malpractice form, which is professional liability under another name, plus general liability for the premises.
• Any business whose contracts require it needs it, and client contracts increasingly require professional liability from vendors that would not have thought of themselves as professionals a decade ago.

How the two fit together

Buy them so that the definitions meet. If the general liability policy carries a professional services exclusion, the professional policy's description of services should cover exactly what that exclusion removes, with no gap between the two. Where one carrier will write both, the wording is usually coordinated and a disputed claim is handled by one adjuster rather than two carriers each declining. Match the retroactive date on the professional policy to the date the business started performing the services, and keep it when changing carriers. Confirm whether the professional policy's defence costs sit inside or outside the limit, and size the limit accordingly. And check whether a business owners policy is in play, since a BOP includes general liability but almost never includes professional liability, which is a common source of the gap.

When to keep what you have

A business holding both policies with definitions that meet, a stable retroactive date and limits that satisfy its contracts is correctly insured, and the annual review is about limits and premium rather than structure. A pure goods or physical-services business holding only general liability is also correctly insured, provided nothing advisory has crept into what it sells. The signal to add professional liability is a change in the work: a first design contract, a consulting engagement, a client agreement with an errors and omissions clause. Adding the second policy at that point is a small cost; adding it after a claim is impossible.

How to use this

Send us a description of what the business actually does, including anything advisory or design-related, and copies of the current liability policies and any client contract with insurance requirements. We map the exposures against the exclusions, identify whether a gap exists between the two forms, and price the missing piece across the carriers we represent in Arizona, Nevada, Utah and Idaho. Where the policies already meet at the boundary and the limits fit the contracts, that is the finding and nothing changes.