Most professional indemnity claims fall into a small number of categories: negligent advice, errors or omissions in the work itself, missed deadlines, breach of confidentiality, and misrepresentation. The details differ by profession, but the pattern repeats. Here’s what each category looks like in practice.
Negligent advice
A client relies on your professional opinion, acts on it, and loses money because the advice was wrong or incomplete.
Illustrative example: A consultant recommends a market entry strategy without adequately testing demand. The client invests based on that advice and the venture fails to reach viability, prompting a claim for the wasted investment.
Design or specification errors
Something in a design, plan or specification is wrong, and correcting it costs money.
Illustrative example: An engineer’s load calculation is incorrect. The error is caught before completion, but the structure requires reinforcement, and the client claims the rework cost.
Errors in calculations or estimates
A figure is wrong, and a client makes a financial decision based on it.
Illustrative example: A quantity surveyor’s cost estimate omits a major line item. Tenders come in far above the estimate, and the client claims for wasted pre-construction costs.
Missed deadlines
A professional’s delay causes the client a financial loss, not just an inconvenience.
Illustrative example: A project manager’s poor scheduling pushes a critical milestone out by several months, and the client claims for the resulting delay costs.
Breach of confidentiality
Client information is disclosed without authorisation, causing loss or damage.
Illustrative example: A consultant inadvertently shares a client’s commercially sensitive figures with a third party, and the client claims for the resulting competitive harm.
Misrepresentation
A professional states something as fact that turns out to be wrong, and someone relies on it to their detriment.
Illustrative example: A property practitioner describes a property’s zoning incorrectly. The buyer purchases on that basis and can’t use the property as planned.
System, implementation or technical failures
For technical professions, a flawed design or implementation causes downstream loss.
Illustrative example: An IT consultant’s system design lacks adequate redundancy. A failure causes extended downtime, and the client claims for lost revenue.
Site supervision and oversight failures
A professional responsible for overseeing work fails to catch a problem before it becomes costly.
Illustrative example: An architect’s site inspections miss a deviation from the approved design, discovered only once it’s expensive to fix.
Why these examples matter more than the numbers
You’ll see claim value ranges quoted in some insurance marketing. Treat those cautiously unless they cite a real source. What actually determines your exposure is:
- The type of work you do
- The size of the decisions your clients make based on your work
- Whether an error could affect one client or several at once
For how to size your own cover against this kind of risk, see How Much Professional Indemnity Insurance Do I Need?
What these claims have in common
Almost none of them involve dishonesty. Most involve a professional doing genuine work that contained a mistake, an omission, or a judgement call that didn’t hold up. That’s exactly what professional indemnity insurance exists for. See What Does Professional Indemnity Insurance Cover?
Frequently asked questions
Are these the only types of claims covered?
No, these are the most common patterns. Your specific policy wording determines what’s actually covered. See What Does Professional Indemnity Insurance Not Cover?
Can one mistake trigger more than one claim?
Yes, particularly for professionals who do repeatable work for many clients, such as standard designs or templated advice. This is one reason aggregate limits matter.
Does it matter if the client contributed to the problem?
It can. Liability and any resulting payout usually reflect the actual facts of each case, which is part of what the investigation stage of a claim establishes.
Where can I read about claims specific to my profession?
See our guidance for architects, engineers, quantity surveyors and consultants.
Don’t wait for a claim to find out what you’re covered for
Understand your risk before it becomes a claim.