Comparison · Business insurance
Professional indemnity vs public liability insurance for a small firm
Last updated 25 October 2026 · 3 sources listed · Reading time about 3 minutes
Short answer
Public liability responds to injury or property damage suffered by third parties because of your business activity, such as a client tripping on your premises. Professional indemnity responds to financial loss caused by errors, omissions or poor advice in the service you deliver. A firm can need either, both, or neither depending on how it works, what clients require by contract, and any rules set by its profession.
Who this is for: The owner of a small consultancy, trade or service business unsure which liability policies address which kinds of claims.
What to evaluate
Type of harm you could cause
Physical harm and financial harm sit under different policies.
How to check: List realistic failure scenarios and sort them into bodily injury, property damage and pure financial loss.
Contract and client requirements
Clients, landlords and tenders often stipulate cover types and minimum limits.
How to check: Read contracts for insurance clauses and limit wording.
Professional or regulatory rules
Some professions must hold indemnity cover as a condition of practice.
How to check: Check the professional body or regulator for mandatory cover.
Claims-made versus occurrence basis
Professional indemnity usually pays claims made during the policy period, so cover after you stop trading needs planning.
How to check: Ask about retroactive dates and run-off cover.
Limit and defence costs
Legal defence can erode the limit, and some policies pay defence outside it.
How to check: Confirm whether defence costs sit inside or on top of the limit.
Subcontractor and territory terms
Work done by others or abroad can fall outside standard terms.
How to check: Ask how subcontracted work and overseas clients are treated.
Comparison
| Policy | Responds to | Watch out for |
|---|---|---|
| Public liability | Third-party injury or property damage arising from your activities or premises | Excludes advice errors and loss to your own staff or property |
| Professional indemnity | Claims for financial loss from negligent advice, errors or breach of duty | Claims-made basis and retroactive dates |
| Employers liability | Injury or illness suffered by employees | Often a legal requirement where staff are employed, depending on the jurisdiction |
| Product liability | Harm caused by goods you supply | Often bundled with public liability but with separate limits |
Decision worksheet
Rate up to three options against this guide’s own criteria. It runs in your browser and saves only on this device. It is a thinking aid, not a recommendation.
1. Have you checked each criterion?
0 of 6 criteria checked.
2. Compare options (0 = fails or unknown, 3 = meets it well)
| Criterion | |||
|---|---|---|---|
| Type of harm you could cause | |||
| Contract and client requirements | |||
| Professional or regulatory rules | |||
| Claims-made versus occurrence basis | |||
| Limit and defence costs | |||
| Subcontractor and territory terms | |||
| Total (max 18) | 0 | 0 | 0 |
Questions to ask before you commit
- Which of my activities does each policy treat as covered or excluded?
- Is cover on a claims-made basis, and what is the retroactive date?
- Do defence costs reduce the limit of indemnity?
- How are subcontractors, associates and overseas work handled?
- What happens to cover if I close the business or retire?
- Does the policy meet the insurance clauses in my current contracts?
- Are there excesses that apply per claim, and how are they set?
Typical trade-offs
Buy both policies
- Upside
- Covers physical and financial harm, which suits many client-facing firms.
- Downside
- Higher combined cost and some overlap to manage.
Public liability only
- Upside
- Meets common venue and client requirements.
- Downside
- Leaves advice and error claims uninsured.
Higher limit of indemnity
- Upside
- Meets larger client demands and reduces shortfall risk.
- Downside
- Raises cost and may exceed the practical needs of small contracts.
Common mistakes
- Assuming public liability covers poor advice. It does not.
- Ignoring the claims-made basis and letting cover lapse after finishing work.
- Failing to disclose subcontractors or overseas work.
- Choosing limits without reading contract requirements.
- Overlooking that employee injury requires a separate policy where it is mandatory.
Related questions
Does a consultant need public liability insurance?
It depends on whether the consultant meets clients at their own premises, visits client sites or hosts visitors. If so, the risk of accidental injury or damage exists even in an advisory business. Clients and landlords may also require it. Professional indemnity is more central to the advice itself, so many consultants hold that and add public liability where contact with people or property exists.
What does claims-made mean for professional indemnity?
The policy responds to claims first notified during the policy period, usually for work done after a retroactive date. If you stop trading and cancel the policy, a later claim about earlier work may have no cover. Run-off or extended reporting options can bridge the gap, and professional bodies often set expectations for how long to maintain it.
Are my directors covered by these policies?
Not for management decisions. Directors and officers cover is a separate product that addresses claims about governance and decisions. Liability policies deal with operational harm or professional errors, so check which risks matter and whether a separate policy is justified.
Who pays legal costs if a claim is unfounded?
Many policies fund defence of covered claims, even baseless ones, subject to insurer consent and limits. Some include costs within the indemnity limit, which reduces what remains for damages. Check consent requirements before instructing lawyers, since unauthorised costs may not be reimbursed.
Sources and further reading
These pages were reachable when we last checked. They informed definitions and rules referred to above; they do not endorse this guide. Where rules differ by country, check the authority for your location.
- Health and Safety Executive — Health and Safety Executive, retrieved 27 October 2026
- Insurance Information Institute — Insurance Information Institute, retrieved 27 October 2026
- Information for consumers — Financial Conduct Authority, retrieved 27 October 2026
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