What Is Public Liability Insurance?
Public liability insurance covers your business if a member of the public is injured or their property is damaged because of your work. It pays for legal costs, compensation claims, and related expenses.
It’s one of those policies most small businesses assume they don’t need, right up until something goes wrong. A customer trips over a cable in your workshop, or you accidentally crack a client’s kitchen worktop during an install.
Neither of those is unusual, and neither is cheap to put right. This guide covers what public liability insurance actually does, who it’s for, and how to work out what level of cover makes sense for your business.
Public liability insurance covers injury and property damage claims from customers, clients, and the public, including legal fees. It isn’t legally required in the UK, but most clients and councils won’t let you work without it.
Compare public liability insurance quotes to see what cover would cost for your trade.
- What does public liability insurance cover?
- Who needs public liability insurance?
- Is public liability insurance a legal requirement?
- How much public liability insurance do you need?
- How much does public liability insurance cost?
- What doesn’t public liability insurance cover?
- Frequently asked questions (FAQs)
What does public liability insurance cover?
It covers claims from anyone outside your business who suffers an injury or property damage because of something you did, or failed to do, while working.
Third-party injuries
If a client visits your premises and slips on a wet floor, or a passer-by is hurt by falling scaffolding on your job site, the claim comes to you. Public liability pays for the legal defence and any compensation awarded.
Third-party property damage
Accidentally drill through a water pipe in a customer’s home? Knock over a display unit at a trade show? These are exactly the kind of incidents that trigger claims under the Occupiers’ Liability Act 1957, and your policy covers the cost of putting things right.
Legal fees and court costs
Even if you’re not at fault, defending a claim costs money. Solicitors, court fees, expert witnesses: your policy picks these up whether you win or lose.
Who needs public liability insurance?
Anyone whose work brings them into contact with the public or other people’s property. That includes tradespeople, market stallholders, mobile beauticians, personal trainers, cleaners, and anyone running a shop or cafe.
It doesn’t matter whether you employ people or work alone. A freelance photographer who knocks over a lamp at a client’s house carries the same risk as a building firm on a construction site.
If you’re a sole trader wondering whether you need cover, the short answer is almost certainly yes. The risk isn’t about business size; it’s about whether your work touches other people or their stuff.
Is public liability insurance a legal requirement?
No. There’s no UK law requiring you to hold public liability insurance.
But that doesn’t mean you can skip it. In practice, councils, event organisers, and private clients regularly ask for proof of cover before they’ll let you work.
Don’t confuse this with employers’ liability insurance, which is a separate legal requirement. If you employ anyone, even part-time, you must hold at least £5 million of EL cover or face fines of up to £2,500 per day.
For a full breakdown of the differences, read our guide on employers’ liability vs public liability insurance.
How much public liability insurance do you need?
Most small businesses choose between £1 million and £5 million of cover, though some contracts demand £10 million.
| Cover Level | Typical Use Case |
| £1 million | Low-risk sole traders, home-based businesses, minimal public contact |
| £2 million | Trades, mobile professionals, public-facing services |
| £5 million | Council work, construction sites, public venue contracts |
| £10 million | Large-scale projects, event management, subcontracting under big firms |
If a client contract specifies a minimum level, that’s your starting point. Otherwise, think about the worst a single claim could realistically cost and pick cover that absorbs it.
See our £2 million, £5 million, and £10 million cover pages for details on each tier.
How much does public liability insurance cost?
Most small businesses pay between £50 and £250 a year, depending on their trade, cover level, and claims history.
What affects the price?
Your trade matters most. A domestic cleaner with £1 million of cover might pay around £50 a year, while a builder working on occupied properties could pay £200 or more for the same limit.
Other factors include your cover level, previous claims, and how often you work in public-facing environments. Always check your insurer is authorised by the Financial Conduct Authority.
For a detailed cost breakdown by trade and cover level, see our guide: how much does public liability insurance cost?
What doesn’t public liability insurance cover?
It doesn’t cover your employees, your own property, or claims arising from professional advice. Each of those needs a separate policy: employers’ liability, business contents insurance, or professional indemnity.
Common exclusions
Faulty workmanship claims, contractual disputes, product liability (unless added as an extra), gradual pollution, and anything involving vehicles are typically excluded.
The line between public liability and professional indemnity catches people out regularly. Our comparison of professional indemnity vs public liability explains which policy responds to which type of claim.
Frequently Asked Questions (FAQs)
Yes. HMRC treats it as an allowable business expense, so you can offset the premiums against your taxable profits.
Yes. Short-term cover is available for events, exhibitions, or one-off jobs, typically ranging from a single day to a few weeks.
You pay everything yourself: legal fees, compensation, court costs. A single claim can easily run into tens of thousands of pounds.
Possibly. If clients visit your home or you carry out work at other people’s properties, you’re still exposed to public risk.
No. Your own property needs separate business contents or tool insurance.
No, they’re different. Public liability covers physical injury and property damage, while professional indemnity covers financial loss from bad advice or negligence.
Yes, they cover different groups. Employers’ liability protects your staff, while public liability covers everyone else: customers, visitors, and passers-by.