If you run a business that both advises clients and deals with the public, you carry two very different risks at once: the risk that your work causes a financial loss, and the risk that your activities cause injury or damage. Professional indemnity insurance and public liability insurance each cover one of these, which is why they are so often bought together.
This guide sets out the difference, who needs both, and how a combined policy works. For more on how each cover behaves, see our complete guide to professional indemnity insurance and our professional services insurance specialism.
In short. Professional indemnity insurance covers financial loss caused by your professional work or advice. Public liability insurance covers injury or property damage caused to other people by your business. Many businesses need both, and they are frequently arranged together in one policy.
The Difference Between Professional Indemnity and Public Liability Insurance
The simplest way to tell them apart is by the type of harm each responds to. Professional indemnity deals with financial loss caused by your work; public liability deals with injury or physical damage caused by your activities.
- Professional indemnity: responds to financial loss from negligent advice, services or work. A typical claim is a client losing money because of a mistake in your work. Cover is usually written on a claims-made basis.
- Public liability: responds to injury to a person or damage to their property. A typical claim is a visitor being injured at your premises, or you damaging a client's property. Cover is usually occurrence-based.
Professional indemnity protects you against the clients you advise or work for. Public liability protects you against clients, visitors and members of the public who interact with your business in person.
Professional Indemnity Insurance Explained
Professional indemnity insurance covers the legal costs and compensation you may face if a client alleges that your professional advice, services or designs caused them a financial loss. It is the central cover for any business that is paid for its expertise, from consultants and IT firms to accountants and agencies. Because it is generally written on a claims-made basis, details such as the retroactive date and run-off matter. For the full detail, see our complete guide to professional indemnity insurance.
Public Liability Insurance Explained
Public liability insurance covers claims from third parties, clients, visitors or members of the public, who suffer injury or property damage as a result of your business activities. Examples include a client tripping in your office, or you accidentally damaging equipment while working at a customer's site. The limit chosen usually reflects what your client contracts and the nature of your activities require.
Why Many Businesses Need Both
The two covers protect against risks that often exist side by side. A consultancy might give advice that turns out to be wrong (a professional indemnity claim) and also host client meetings where someone could be injured (a public liability claim). Relying on one cover leaves the other exposure unprotected.
Client contracts reinforce this. It is common for a commercial client or framework to require both professional indemnity and public liability insurance, often at set limits, before they will engage a supplier. Holding both, at the right limits, can be the difference between winning and losing the work.
Combining Professional Indemnity and Public Liability in One Policy
Professional indemnity and public liability are frequently arranged together in a single combined or package policy, usually alongside employers' liability where you have staff. Bringing the covers under one policy and one renewal date can simplify administration and is often more cost-effective than buying each separately.
That said, the right structure depends on the business. Higher-risk or larger firms sometimes keep professional indemnity standalone so its wording and limit can be optimised independently. A broker can advise which approach suits your exposures, and we explain how these covers fit within a wider programme on our professional services insurance page.
Which Businesses Need Professional Indemnity and Public Liability Insurance?
Businesses that both provide a professional service and interact with clients or the public are the most common buyers of both covers, including:
- Consultants and advisory firms
- IT and technology businesses
- Marketing, design and creative agencies
- Recruitment agencies
- Accountants and bookkeepers
- Engineers, surveyors and other built-environment professionals
- Trainers, coaches and consultants who visit client sites
Setting the Right Limits of Indemnity
Each cover has its own limit of indemnity, and the right levels are generally driven by your client contracts and the scale of the work you do. It is worth checking each contract, as it usually specifies the minimum for both.
Check the contract before you sign. Client and framework agreements often state the exact limits required for both professional indemnity and public liability. Confirming your policy meets them in advance avoids a shortfall surfacing later.
What Does Combined Cover Cost?
Premiums depend on the likelihood and potential size of a claim under each cover. The main factors are:
- Profession and activities: higher-risk advice and any work on client sites can increase both elements.
- Fee income or turnover: the primary measure of exposure for professional indemnity.
- Limits of indemnity: higher limits on either cover tend to increase premium.
- Claims history: previous claims are a strong rating factor for both.
- Combined vs standalone: arranging both together is often more cost-effective than separate policies.
Frequently Asked Questions
What is the difference between professional indemnity and public liability insurance?
Professional indemnity insurance covers financial loss caused by your professional advice, services or work, such as a mistake or negligent advice. Public liability insurance covers injury to people or damage to their property caused by your business activities. They respond to different claims, which is why many businesses hold both.
Do I need both professional indemnity and public liability insurance?
It depends on the business. Firms that give advice or provide a professional service and also meet clients or work on site often need both, because the two covers protect against different risks. A broker can confirm which your business and contracts require.
Can professional indemnity and public liability be on one policy?
Often, yes. The two covers are frequently arranged together in a single combined or package policy, usually with employers' liability where you have staff. This can simplify administration and place everything on one renewal date.
Which businesses need professional indemnity and public liability insurance?
Consultants, IT and technology firms, designers, marketing and recruitment agencies, accountants and similar advisory businesses commonly need both, particularly where they visit client sites or host meetings. Client contracts frequently make both a condition of engagement.
Is public liability or professional indemnity insurance a legal requirement?
Neither is a general legal requirement in the UK, though professional indemnity is mandatory for some regulated professions and both are often required by client contracts. Employers' liability, by contrast, is generally a legal requirement once you employ staff.
How much does professional indemnity and public liability insurance cost?
Cost depends on the profession, fee income or turnover, the limits of indemnity, claims history and the activities covered. Arranging the two together in a combined policy can be more cost-effective than buying them separately. A broker can benchmark the market for competitive terms.
