A customer slips on a wet floor in your office. Another customer loses money because you gave the wrong advice. Both painful, both potentially expensive. But they are two completely different situations covered by two completely different insurance policies.
Yet many SME owners mix them up: public liability insurance (also called business liability or general liability) and professional indemnity insurance (also called professional liability or errors & omissions). In this article, we explain the difference so you know which one you need and why.
What does public liability insurance cover?
Public liability insurance is the baseline policy for any business. It covers damage that you or your employees cause to others during business operations. Think of:
- A technician who accidentally damages a water pipe at a client's premises
- A visitor who trips over a cable in your office
- An employee who scratches a client's car with a pallet truck
It always involves bodily injury or property damage: someone gets hurt or someone's belongings get damaged. The policy covers compensation to the injured party and the legal costs if it comes to a claim.
Almost every business needs public liability insurance. Whether you run a restaurant, a construction firm, or an e-commerce warehouse. Whenever there is physical contact with customers, suppliers, or their property, you carry this risk.
What does professional indemnity insurance cover?
Professional indemnity insurance covers something entirely different: financial loss caused by mistakes in your professional work. Not broken property or broken bones, but missed deadlines, wrong advice, or errors in a design. Examples:
- An accountant files a tax return late, causing the client to receive a fine
- An IT agency delivers software that does not work, causing the client to lose revenue
- An architect makes a calculation error in the design, leading to additional costs for the client
With professional indemnity, it is about pure financial loss: the client suffers financial damage without anything or anyone being physically harmed. The policy covers the compensation and legal costs.
Professional indemnity insurance is especially relevant for service providers and professionals: consultants, accountants, IT companies, architects, estate agents, lawyers, and management consultants.
The key differences at a glance
| Public liability | Professional indemnity | |
|---|---|---|
| What is covered? | Bodily injury and property damage to third parties | Financial loss from professional errors |
| When relevant? | Always, for any business | When providing professional services or advice |
| Typical example | Customer slips on wet floor | Wrong advice costs client money |
| Coverage type | Occurrence-based (moment of damage counts) | Usually claims-made (moment of claim counts) |
| Mandatory? | Not by law, but standard practice | Sometimes required by professional bodies or contracts |
An important technical difference: most public liability policies work on an occurrence basis, meaning the moment the damage happens is what counts. Most professional indemnity policies work on a claims-made basis, where the moment the claim is filed is what counts. This has consequences: if you cancel your professional indemnity policy, you are no longer covered for past errors that only come to light afterwards. Many policies therefore offer a run-off period.
Which insurance do you need?
That depends on what your business does:
Public liability only is sufficient if your business does not provide professional advice or knowledge-intensive services. Think of a retail shop, a cleaning company, or a restaurant.
Professional indemnity only is rarely sufficient. Even a consultant who works exclusively from home can encounter situations where a visiting client trips and falls.
Both policies are needed if your business provides services and simultaneously has physical contact with clients or their property. An IT company that also does on-site installations. An architecture firm that also provides construction supervision. An accounting practice where clients visit the office.
In practice, most SME service providers need both policies. Some insurers offer combined packages. If you go that route, check carefully whether both coverage components are adequate, because combined policies sometimes have lower insured amounts per component.
What do your contracts say about insurance?
This is where it becomes relevant for your contract management. Many business contracts include insurance obligations. This can work two ways:
As a client, you often require your supplier to carry specific insurance. Think of a liability limitation clause in the contract that is only valid if the supplier can demonstrate adequate insurance. Or an indemnification clause that prescribes the supplier must provide proof of public liability and/or professional indemnity coverage.
As a service provider, your client may require you to maintain minimum coverage. That will be stated in the purchase conditions or in the contract itself. Sometimes quite specific: "The contractor shall maintain professional indemnity insurance with a minimum coverage of EUR 500,000 per claim."
The problem? Most businesses check whether the insurance is in order when signing the contract, then forget about it. Policies get cancelled, coverage gets reduced, and nobody notices until a claim arrives.
If you have multiple suppliers with insurance obligations in their contracts, it pays to track those obligations centrally. When does the policy expire? What minimum coverage was agreed? Has the supplier provided their latest certificate of insurance?
The difference between public liability and professional indemnity insurance is not complicated, but it is important to understand correctly. The wrong insurance is just as bad as no insurance. Check your policies, check your contracts, and make sure everything aligns.
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