What Professional Indemnity Insurance Covers

Editorial attribution: Professional Insurance UK Editorial Team
Editorial review: 28 June 2026

Professional indemnity insurance commonly addresses civil claims that a professional service, advice, design, report or omission caused another party financial loss. It may fund defence costs and covered compensation, but the exact protection depends on the insured activities and policy wording.

Key point: The phrase “professional indemnity insurance” does not describe one universal package. Two policies with the same limit can cover different activities, allegations, costs and time periods.

Start with the Professional Indemnity Insurance UK guide for the wider policy mechanics.

Whether cover is compulsory, contractually required or chosen voluntarily is addressed in Who Needs Professional Indemnity Insurance?

The basic cover concept

A PI claim usually has four elements:

1. a professional service or duty;
2. an alleged error, omission, negligent act or other covered civil liability;
3. a claimed financial loss or another remedy;
4. a claim or circumstance falling within the policy period and all applicable terms.

The insurer may investigate whether the allegation falls within the insuring clause, whether an exclusion applies, whether notification was valid and what loss is legally recoverable.

The FCA describes PII as liability insurance for third-party loss, usually due to professional negligence. The ABI describes it as cover for compensating clients for loss or damage resulting from negligent services or advice.

Professional negligence

Professional negligence is the central exposure in many PI policies. An allegation may be that the insured failed to exercise the care and skill expected in the circumstances.

Examples include:

• an adviser gives incorrect information and the client acts on it;
• a designer produces a specification that must be replaced;
• a survey or report misses a material issue;
• a consultant recommends a process that does not meet the agreed requirements;
• a technical calculation is wrong;
• a project manager fails to identify or communicate a critical dependency.

Insurance does not decide whether the professional was negligent. Liability may be admitted, negotiated or decided through legal proceedings. The policy deals with specified insured costs and liabilities, subject to its terms.

Errors and omissions

Many PI products use “errors and omissions” language. This can include:

• an incorrect figure, instruction or specification;
• an omitted warning or step;
• failure to pass on material information;
• an administrative error that affects the professional service;
• accidental use of an obsolete document or version;
• failure to complete a defined professional task.

An error does not automatically create a covered claim. There usually must be an allegation of legal liability and a loss within scope. The policy may not pay simply to redo work or improve a result.

Negligent misstatement and misleading information

A client or third party may say it relied on a report, valuation, forecast, certificate or other statement that was prepared negligently.

Coverage can depend on:

• whether the claimant was within the intended group of recipients;
• whether reliance was reasonably foreseeable;
• what disclaimers or limitations were used;
• whether the statement concerned fact, opinion or future expectation;
• the professional duty established by the contract and law;
• whether the activity was declared to the insurer.

A policy may cover the defence of the allegation even if the statement was ultimately accurate, but only if the claim falls within the wording.

Breach of professional duty

Some policies use a broad civil-liability or breach-of-duty wording rather than limiting cover to negligence alone.

The SRA minimum terms are a regulated example of broad civil-liability cover for private legal practice. That example should not be treated as the standard wording for every occupation.

A breach of contract may be covered where it reflects the professional duty that would otherwise exist. Policies commonly restrict liabilities created solely by a contractual promise, guarantee, indemnity or acceptance of responsibility beyond the ordinary legal duty.

For example, a contract that promises an outcome, unlimited liability or liability for another party’s acts can create exposure beyond the policy’s intended scope.

Defence costs

Defending an allegation can involve:

• solicitors’ fees;
• counsel’s fees;
• expert evidence;
• technical investigations;
• mediation and settlement work;
• court fees;
• claimant’s costs where payable.

Check whether defence costs are included within the limit or paid in addition. Also check whether the excess applies to defence costs and whether the insurer must approve advisers and expenditure.

Limits, excesses and the defence-cost basis also affect the cost of professional indemnity insurance.

Taking control of a defence without insurer consent may breach a condition. Equally, the insured may have duties to cooperate, preserve documents and provide information.

Compensation and settlements

Where liability is established or a settlement is agreed, the policy may pay covered compensation up to the available limit.

The insurer will usually examine:

• causation: did the alleged breach cause the loss?
• remoteness: is the loss legally recoverable?
• mitigation: could the loss reasonably have been reduced?
• contributory fault: did the claimant contribute?
• contractual caps or exclusions;
• aggregation: are several claims treated as one?
• the excess and remaining limit.

A commercial refund, fee waiver or goodwill payment is not automatically a covered loss.

Rectification and mitigation costs

Some policies include a limited extension for costs incurred to correct an error before a larger claim develops. It may be called mitigation, rectification or loss-prevention cover.

Common conditions include:

• the insurer’s prior written consent;
• evidence that the cost is lower than the likely covered claim;
• no payment for improving the original specification;
• a sublimit;
• an excess;
• prompt notification.

Do not assume that urgent corrective work is insured. Contact the insurer or broker before committing expenditure where possible.

Loss of documents or data

A PI policy may include an extension for restoring or replacing client documents or data lost, damaged or destroyed in the course of professional work.

This can overlap with cyber insurance, property insurance and contractual obligations. Check:

• whether electronic records are included;
• whether cyber events are excluded;
• the restoration-cost basis;
• sublimits and excesses;
• whether the loss arose from a professional service or a broader security incident.

A privacy breach or ransomware event may require cyber and data-protection response rather than PI alone.

Intellectual-property allegations

Some PI policies cover unintentional infringement of copyright or other intellectual-property rights in the course of professional services.

This can be relevant to designers, marketers, software developers, publishers and consultants. Coverage may exclude deliberate copying, patent disputes, ownership disputes, licences assumed under contract or use outside the declared activity.

The policy may also distinguish between the cost of defending a third-party allegation and the insured’s own cost of replacing infringing work.

Confidentiality and privacy

A policy may extend to an accidental breach of confidentiality arising from professional services. Cyber and privacy liability may be separate.

Questions include:

• Was the disclosure accidental?
• Did it arise from an insured professional service?
• Is personal data involved?
• Does a cyber exclusion apply?
• Are regulatory investigations, notification costs or fines covered?
• Does the policy cover only third-party compensation?

No policy should be assumed to insure a fine or penalty where insurance is prohibited or contrary to public policy.

Defamation and media liability

Some occupation-specific PI policies include unintentional defamation, libel or slander. This is not universal and may be more appropriately addressed by media-liability cover.

Check whether the extension applies to:

• published content;
• advertising;
• social media;
• client work only;
• specified territories;
• deliberate or malicious statements.

Employee dishonesty

Some wordings protect the business from civil liability caused by a dishonest employee, while excluding dishonesty by a principal or anyone who condoned the conduct.

This is not the same as crime insurance. It may address the client’s claim against the insured firm but not the firm’s own direct financial loss from theft or fraud.

Court attendance and reputation support

Policies sometimes include fixed daily amounts for attending court or an approved public-relations service after a covered incident. These are ancillary benefits and may be subject to small sublimits.

They should not be confused with the main indemnity limit.

Common exclusions and restrictions

Known claims and circumstances

A policy normally excludes claims or circumstances known before inception that were not accepted by the insurer. Proposal questions may ask about complaints, errors, disputes, late work, fee withholding or facts that may give rise to a claim.

Uninsured activities

If the schedule describes “management consultancy” but the business also provides engineering design, the undeclared work may fall outside cover. Activity descriptions should be complete and specific.

Deliberate and dishonest acts

Intentional wrongdoing by the insured is commonly excluded. Some policies protect innocent insured persons from another person’s dishonesty, but the details vary.

Fines and penalties

Criminal fines and many regulatory penalties are not insurable. Investigation or defence costs may be treated separately.

Contractual assumptions

Liability accepted only because of a contract may be excluded. Broad indemnities, warranties, guarantees, service credits and uncapped liabilities should be compared with the policy.

Bodily injury and property damage

These risks are commonly addressed by public or products liability insurance. A PI policy may retain limited cover where injury or damage results directly from professional advice or design, but occupation-specific wording matters.

Cyber risks

A PI policy may address a professional error in software or advice but exclude or restrict hacking, malware, privacy incidents, cybercrime and network interruption.

Insolvency and fee disputes

PI is not a guarantee of business performance or client payment. Claims arising solely from insolvency, refunds, unpaid fees or commercial dissatisfaction may not fall within cover.

Sanctions and restricted territories

Sanctions clauses can prevent an insurer from providing cover or payment where doing so would be unlawful. Territorial and jurisdictional limits may also restrict overseas work.

Claims-made timing

Even a claim that fits the subject matter may fail if the timing provisions are not met.

Check:

• policy period;
• retroactive date;
• claim and circumstance definitions;
• notification route and deadline;
• continuity when changing insurer;
• run-off after cessation;
• whether related claims are treated as one.

ARB’s professional-indemnity guidance explains the claims-made principle for architects. The SRA minimum terms show how claims first made and circumstances first notified during a period can be handled in a regulated scheme.

Limits, sublimits and excesses

A policy schedule should be read with the wording and endorsements.

A £1 million headline limit may contain:

• an aggregate basis rather than any-one-claim cover;
• defence costs within the limit;
• lower sublimits for documents, intellectual property, dishonesty or cyber matters;
• a separate excess for higher-risk work;
• one aggregate limit shared by connected entities.

Ask how multiple claimants or repeated errors are aggregated. A single flawed template used for many clients could create one claim, several claims or a series subject to one limit, depending on the wording.

How to check a PI policy

Use this sequence:

1. Read the schedule for insured name, activities, limit, excess, dates and territory.
2. Read the insuring clause to identify the legal liability covered.
3. Read definitions of professional services, claim, circumstance, loss and defence costs.
4. Read all exclusions and endorsements.
5. Confirm the retroactive date and continuity.
6. Check whether defence costs are inside or outside the limit.
7. Check notification duties and consent conditions.
8. Compare the policy with client contracts and professional rules.

The business insurance documents guide explains how schedules, wordings, certificates and endorsements fit together.

Practical examples

Allegation	PI may be relevant where	Important checks
Incorrect consultancy advice	The client claims financial loss from relying on professional advice	Insured activity, causation, exclusions and limit
Design error	A specification or calculation must be corrected and causes project loss	Occupation wording, contractual liability, rectification extension
Missed deadline	The delay resulted from a covered professional omission	Contract terms, liquidated damages, guarantees and causation
Copyright allegation	Use was unintentional and within an IP extension	Type of right, deliberate acts, licence and sublimit
Lost client records	Restoration costs fall within a document extension	Electronic records, cyber exclusion, sublimit and consent
Confidential information disclosed	The breach arose from professional services and an extension applies	Cyber/privacy overlap and regulatory costs

Read the claim scenarios page for fuller hypothetical examples.

Frequently asked questions

Does PI cover all mistakes?

No. A mistake must give rise to a covered allegation or loss, and all policy terms must be met.

Does PI pay to redo my work?

Not automatically. Rectification or mitigation costs require specific wording and often insurer consent.

Are legal costs covered if the claim is false?

They may be, if the allegation falls within scope and the insurer controls or approves the defence.

Does PI cover breach of contract?

It may cover liability reflecting the professional duty, but obligations assumed only by contract may be restricted.

Does PI cover cyber incidents?

Sometimes only to a limited extent. Dedicated cyber cover may be needed for security, privacy, interruption and cybercrime risks.

Does PI cover subcontractors?

Some policies cover liability for subcontracted work; others require declaration, approval or separate insurance.

Next step

Compare the work described in your contracts with the professional-services definition in the schedule and wording. Then identify any extensions, exclusions, sublimits and notification duties that materially affect the protection.