Editorial attribution: Professional Insurance UK Editorial Team
Editorial review: 28 June 2026
The examples below are hypothetical, simplified composite scenarios. They illustrate how professional-indemnity allegations may develop. They are not real PIUK clients, not predictions of claim outcomes and not promises that a policy would respond.
Cover depends on the insured activity, policy wording, dates, retroactive cover, notification, exclusions, limits, excess, evidence and legal liability.
Read What Professional Indemnity Insurance Covers before applying the examples.
The Professional Indemnity Insurance UK guide provides the wider claims-made and policy-mechanics context.
Scenario 1: incorrect consultancy advice
Situation
A small manufacturer hires an operations consultant to recommend a new inventory process. The consultant advises the client to adopt a system that does not integrate correctly with the existing order platform.
Allegation
The client says the consultant failed to investigate a known compatibility issue and that stock and delivery records became unreliable.
Claimed loss
The client claims the cost of emergency technical work, wasted implementation expenditure and lost profit from delayed orders.
PI questions
- Was systems-integration advice within the insured professional services?
- Did the engagement define the consultant’s responsibility?
- Was the issue caused by negligent advice, the client’s implementation or a third-party supplier?
- Are lost-profit or consequential-loss claims within scope?
- Does a contractual liability exclusion apply?
- Was the complaint or circumstance notified promptly?
Records that matter
The engagement letter, project assumptions, meeting notes, technical requirements, recommendations, warnings and change approvals.
Scenario 2: design or calculation error
Situation
A designer prepares calculations and specifications for a commercial installation. Construction begins before a dimension error is identified.
Allegation
The client says the design did not meet the stated load requirements and must be changed.
Claimed loss
The claim includes redesign, removal and replacement work, delay and additional professional fees.
PI questions
- Was the design activity declared to the insurer?
- Does the policy cover the relevant discipline and project type?
- Is rectification covered, or only third-party damages?
- Is there a construction, cladding or high-risk-project exclusion?
- Are defence and expert costs inside the limit?
- Does the contract contain a liability cap?
Records that matter
Design inputs, calculations, peer-review records, drawings, version history, approvals, scope changes and site information.
A similar error can lead to very different outcomes depending on whether the mistake was corrected before loss, whether the insurer approved mitigation and whether the contract allocated design responsibility.
Scenario 3: missed deadline and lost opportunity
Situation
A consultant is engaged to prepare a funding application by a fixed deadline. A required supporting document is omitted and the application is rejected as incomplete.
Allegation
The client says the consultant failed to use reasonable care and claims it lost the chance to obtain funding.
Claimed loss
The client seeks the application fee, consultancy fees and the value of the lost funding opportunity.
PI questions
- Was submission responsibility clearly allocated?
- Would the application probably have succeeded if complete?
- Is loss of chance legally recoverable on the facts?
- Did the client supply information late?
- Is the funding amount too remote or speculative?
- Does the policy restrict guarantees or performance obligations?
Records that matter
The timetable, checklist, client instructions, draft submissions, reminders and evidence of who controlled final filing.
Scenario 4: inaccurate report relied on by another party
Situation
A business prepares a due-diligence report for a client considering an acquisition. The report understates a significant operational liability.
Allegation
After the acquisition, the client says it relied on the report and paid more than it otherwise would have paid.
Claimed loss
The claim includes the alleged overpayment, remediation costs and professional fees.
PI questions
- What was the agreed scope and limitation of the report?
- Did the report contain assumptions and reliance restrictions?
- Was the omitted information reasonably available?
- Did another adviser or the client contribute?
- Was the claimant entitled to rely on the report?
- Does the limit reflect the transaction size?
Records that matter
The engagement letter, data-room records, questions raised, disclaimers, drafts, client responses and final report.
Scenario 5: accidental intellectual-property infringement
Situation
A creative agency uses an image in a client campaign believing it has the required licence. The rights holder alleges copyright infringement and contacts both the agency and client.
Allegation
The client says the agency failed to verify the licence and seeks the cost of withdrawing and replacing the campaign.
Claimed loss
The rights holder demands damages and legal costs. The client claims replacement and delay costs.
PI questions
- Does the policy include unintentional intellectual-property infringement?
- Is copyright included, and are patents or trade marks excluded?
- Was the use genuinely accidental?
- Did the licence permit the relevant territory and media?
- Does the policy cover the client’s rectification costs?
- Is there a sublimit?
Records that matter
Licence terms, asset-source records, approval workflow, campaign brief and publication history.
Not every PI policy includes intellectual-property protection. A general promise that PI “covers copyright” would be unsafe.
Scenario 6: breach of confidentiality
Situation
A consultant sends a confidential commercial report to the wrong recipient.
Allegation
The client says the disclosure harmed negotiations and breached the engagement terms.
Claimed loss
The client seeks legal costs and alleged commercial loss.
PI questions
- Is breach of confidentiality within the PI wording?
- Is the incident treated as a cyber or privacy event instead?
- Does the policy cover only civil compensation or also incident-response costs?
- Was personal data involved?
- Was prompt notification made to the appropriate insurers?
- Are regulatory costs or fines excluded?
Records that matter
The email, recipient details, access logs, confidentiality terms, incident response and steps taken to contain the disclosure.
Scenario 7: subcontractor error
Situation
A consultancy subcontracts specialist analysis but delivers the final report under its own contract. The subcontractor’s model contains an error.
Allegation
The client claims against the consultancy because it contracted for the complete service.
Claimed loss
The client seeks the cost of rework and decisions made using the flawed report.
PI questions
- Does the insured’s policy cover liability arising from subcontractors?
- Was the subcontracted activity disclosed?
- Did the subcontractor maintain its own PI?
- Is there a contractual right of recovery?
- Were review and supervision obligations met?
- Do both policies contain notification or cooperation duties?
Records that matter
The client contract, subcontract, certificates, review records, instructions and final sign-off.
A subcontractor’s insurance certificate does not automatically transfer the client-facing liability.
Scenario 8: prior work and a retroactive-date gap
Situation
A business buys its first PI policy on 1 January 2026 with a retroactive date of the same day. In April 2026, a client complains about work delivered in October 2025.
Allegation
The client claims that the earlier advice caused a financial loss.
PI questions
- Does the policy exclude work performed before the retroactive date?
- Was the earlier activity disclosed during the quote?
- Did another policy exist at the relevant claims-made time?
- Was any circumstance known before inception?
- Is there a prior-known-matters exclusion?
Lesson
A current policy does not necessarily cover all previous work. The retroactive date must be checked.
Scenario 9: a circumstance before a formal claim
Situation
A project manager discovers that an important approval was not obtained. The client has not demanded compensation but has asked for an urgent explanation and reserved its rights.
Potential circumstance
The facts may reasonably be capable of giving rise to a claim.
PI questions
- How does the policy define a circumstance?
- Must it be notified immediately or as soon as practicable?
- What information must the notice contain?
- Would a later claim attach to the current policy if the circumstance is validly notified?
- Is insurer consent needed before remedial work?
Records that matter
The approval process, discovery date, client correspondence, internal investigation and notification.
Waiting until proceedings arrive can create a notification dispute.
Scenario 10: an unfounded allegation
Situation
A client blames an adviser for a failed commercial decision. The adviser has clear written warnings showing that the client chose a different course.
Allegation
The client threatens proceedings and demands reimbursement.
PI questions
- Does the allegation fall within the insured services?
- Is defence-cost cover available before liability is established?
- Has the matter been notified correctly?
- Can the insurer appoint solicitors and control the defence?
- Does the excess apply to defence costs?
Lesson
PI may be valuable because defence can be expensive even when the professional has strong evidence. An allegation still must fall within the policy.
What these scenarios do not prove
They do not prove that:
- a policy will pay every loss described;
- the professional is legally liable;
- every PI policy includes intellectual property, confidentiality or rectification cover;
- loss of profit is always recoverable;
- defence costs are always outside the limit;
- a client contract is enforceable as written;
- a claim should be admitted or settled.
The full facts and wording control.
Common stages of a PI matter
- Error, complaint or warning sign is identified.
- The business considers whether it is a claim or circumstance.
- The broker or insurer is notified through the required route.
- The insurer assesses coverage and reserves rights where necessary.
- Facts, documents, liability and loss are investigated.
- The matter may be defended, mediated, settled or litigated.
- The insurer applies the limit, excess, costs provisions and exclusions.
- Risk controls and future underwriting are reviewed.
Not every matter follows this sequence. Urgent mitigation may be needed, but insurer-consent conditions should be checked.
Use Understanding Business Insurance Documents to locate the notification, consent, limit and excess provisions that control the response.
Immediate actions after a potential error
- protect people, property, data and continuing operations;
- preserve documents and electronic records;
- check the policy’s notification clause;
- contact the broker or insurer promptly;
- avoid speculative admissions;
- do not agree a settlement without checking consent requirements;
- record the facts, dates and people involved;
- separate legal advice from internal investigation where appropriate;
- consider whether other policies—cyber, public liability, directors’ and officers’ or legal expenses—may also need notification.
Evidence that often matters
- engagement letters and scopes;
- proposals and statements of work;
- client instructions;
- assumptions and disclaimers;
- calculations and working papers;
- review and approval records;
- emails and meeting notes;
- version history;
- change requests;
- subcontract agreements;
- complaints and responses;
- insurer notifications.
Good records do not guarantee a successful defence, but missing records can make the facts harder to establish.
Cover issues commonly raised
Was the service insured?
The activity must fall within the professional-services description.
Was the claim made or circumstance notified in time?
Claims-made timing can be decisive.
Does the retroactive date include the work?
Earlier work may be excluded.
Was the matter known before inception?
Prior-known matters may not transfer to a new insurer.
Does an exclusion apply?
Contractual liability, cyber, bodily injury, property damage, dishonesty and restricted-sector exclusions may be relevant.
Is the limit sufficient?
Defence costs, multiple claimants and aggregation can reduce the available amount.
Frequently asked questions
Does a complaint count as a claim?
It may, depending on the definition. A complaint can also be a circumstance even without a demand for money.
Should I tell the insurer before replying to the client?
Check the notification and consent clauses. Urgent acknowledgement may be appropriate, but avoid admissions or settlements without advice.
Can I fix the work first and claim the cost later?
Only if the wording and insurer consent allow it. Rectification costs are not automatically covered.
Will PI cover lost profit claimed by the client?
It depends on liability, causation, remoteness, contract terms and policy exclusions.
What if the claim is false?
Defence costs may be covered where the allegation falls within scope, but policy conditions still apply.
Does a subcontractor’s policy deal with the claim?
The client may claim against the business it contracted with. Recovery from the subcontractor is a separate issue.
Next step
Use the scenarios to identify your own warning signs, then record relevant changes, incidents and documents with the Business Insurance Review Checklist. Check the definitions of claim, circumstance and professional services in your policy, and keep the insurer’s notification route accessible before a problem occurs.