Professional Indemnity vs Employers' Liability Insurance
Reviewed by Matthew Bartlett, Director, Apex Insurance Brokers Limited · Last reviewed 2026-08-05
These two covers are often confused because both sit under "liability" and both respond when someone brings a claim against your business. But they answer to different people, different events and different rules. Understanding the split matters, because buying one does nothing to plug the gap left by the other.
What each policy actually covers
Professional indemnity responds when a client alleges that your professional service fell short and cost them money. Think of a wrong figure in an accountant's return, a design flaw from an architect, or negligent advice from a consultant. PI covers your legal defence costs and any damages or settlement you become liable to pay. The claimant is your client or a third party relying on your work.
Employers' liability responds when an employee is injured or becomes ill because of the work they do for you, and alleges you were at fault. A warehouse worker hurt by faulty equipment, or an office employee who develops a repetitive strain condition, could bring such a claim. EL covers your defence and any compensation awarded. The claimant is your own worker.
The legal picture: one is compulsory, one usually isn't
This is the sharpest difference. Under the Employers' Liability (Compulsory Insurance) Act 1969, most businesses that employ staff must hold EL insurance of at least £5 million, from an authorised insurer. You must display the certificate or make it available to employees, and the Health and Safety Executive can fine businesses that trade without valid cover. A small number of firms are exempt, such as some family businesses where all employees are close relatives, but the default position is that if you have staff, EL is mandatory.
Professional indemnity is different. There is no single Act making PI compulsory for every business. However, many regulators and professional bodies require their members to hold it, and many client contracts demand it before you can be appointed. So while PI may not be a statutory duty for your specific trade, it is frequently a practical or contractual one.
Side by side
| Professional indemnity | Employers' liability | |
|---|---|---|
| Who claims | Clients / third parties | Your employees |
| Trigger | Negligent advice, work or service causing financial loss | Work-related injury or illness to staff |
| Legally required? | Not by statute; often required by regulators or contracts | Yes, under the 1969 Act (min. £5m) |
| Typical limits | £1m, £2m or £5m (per contract needs) | £5m or £10m as standard |
| Loss type | Financial / economic loss | Bodily injury / illness |
Why a firm with staff needs both
The two covers do not overlap, so neither can substitute for the other. Picture a small architecture practice with four employees. A client sues over a specification error that led to costly remedial work; that is a PI claim, and EL would not touch it. Separately, a junior architect trips on a poorly maintained studio floor and is injured; that is an EL claim, and PI would not respond. Both scenarios can arise from the same business in the same year, and each needs its own policy behind it.
Leaving either gap open is a real exposure. Without PI, a single disputed piece of advice can generate legal costs that dwarf the fee you earned. Without EL, you are not only unprotected against an employee's injury claim, you are also breaking the law and risk HSE penalties. For most firms that advise clients and employ people, the sensible baseline is both covers running together, often alongside public liability.
Not sure which limits your firm needs, or whether one policy can bundle both? We'll map your risks and quote the right cover.
Get a PI quote →Getting the limits right
EL limits are largely set by the 1969 Act's £5 million floor, though many insurers provide £10 million as standard. PI limits are more of a judgement call, driven by the size of the contracts you take on and any minimum your regulator or clients specify. A consultant handling modest advisory work may be comfortable at £1 million, while a firm on larger projects may need £5 million or more. Choosing a limit that is too low can leave you personally exposed to the shortfall on a serious claim.
Because PI is usually written on a "claims made" basis, cover must be in force both when you do the work and when the claim is made, sometimes years later. That makes continuity and run-off cover important considerations, especially if you change insurer or wind down the business. Speak to us about structuring your cover so there are no gaps between policy years.
Common questions
Do sole traders with no employees need employers' liability?
Generally no. If you genuinely have no employees, the 1969 Act's compulsory requirement usually does not apply. But be careful: casual staff, temporary workers, apprentices and some contractors can count as employees. If in doubt, check your working arrangements before assuming you are exempt.
Can I buy professional indemnity and employers' liability on one policy?
Often, yes. Many business or professional combined policies package PI, EL and public liability together, which can simplify administration and renewal. The covers remain separate protections within the policy, each with its own limit and terms, so it is worth checking the detail rather than assuming one figure covers everything.
Which claim is more likely to bankrupt a small firm?
Either can be serious. A large injury claim under EL or a substantial negligence claim under PI can both run to sums well beyond a small firm's reserves once legal costs are added. That is precisely why both covers exist and why relying on only one leaves a dangerous gap.
Apex Insurance Brokers Limited is authorised and regulated by the Financial Conduct Authority (FRN 724952). This guide is general information, not advice on a specific policy or a substitute for your policy wording.