- Professional indemnity (PI) is the core cover for consultants because their main exposure is advice that turns out to be wrong, negligent, or causes a client financial loss.
- Public liability (PL) is not legally required, but most consultants who visit client sites carry it, with cover commonly arranged at 1m, 2m, or 5m.
- Employers' liability insurance is a legal requirement under the Employers' Liability (Compulsory Insurance) Act 1969 if you employ staff, with a minimum of 5m cover and fines of up to 2,500 per day for not holding it.
- Client and framework contracts frequently specify minimum PI limits, often 1m to 5m, before they will sign you on.
- IR35 (the off-payroll working rules) affects your tax status, not whether you can buy insurance, but many end clients still require contractors to hold their own cover as evidence of genuine self-employment.
Most UK consultants need professional indemnity as their priority cover, plus public liability for client visits and cyber cover if they handle data. Limited company directors should consider management liability. Client contracts often set the minimum limits you must hold.
Last reviewed: June 2026
Why consultants have a different insurance profile
Consulting is an advice business. You are paid for your expertise, your recommendations, and your judgement, and that is exactly where the risk sits. A builder can be sued if a wall falls down, but a consultant can be sued if a strategy fails, a forecast proves wrong, a system is specified incorrectly, or a deliverable is late and the client loses money as a result. Because the value you sell is intangible, the claims that hit consultants are usually about financial loss rather than physical damage.
That single fact reshapes the whole insurance question. For trades and shops, public liability tends to be the headline cover. For consultants, the headline cover is almost always professional indemnity, with everything else built around it depending on whether you visit sites, handle client data, employ people, or operate through a limited company.
Professional indemnity: the essential cover
Professional indemnity insurance, often shortened to PI, responds when a client alleges that your professional service caused them a loss. That includes negligence, a mistake or error in your work, a breach of professional duty, defamation, and in many policies the cost of putting right a problem in your deliverable. Crucially, PI also pays the legal defence costs of fighting an allegation, even when the claim is ultimately unfounded. Defence costs alone can run into tens of thousands of pounds, which is why consultants who feel "I never get things wrong" still carry the cover. The protection is as much about the cost of being accused as the cost of being liable.
PI is written on a "claims made" basis. This means the policy that pays is the one in force when the claim is made against you, not the one in force when you did the work. The practical consequence is that you need to keep cover running continuously, including after a contract ends, because a dissatisfied client can bring a claim months or years later. When you stop consulting entirely, you may need "run-off" cover to stay protected for past work.
How much PI to carry depends on the size of the engagements and what your clients demand. A sole consultant on small projects might hold 250,000 or 500,000, while consultants working with large corporates, public sector bodies, or financial clients are routinely asked for 1m, 2m, or 5m. The limit is frequently dictated by the contract rather than chosen freely, which is covered in more detail below.
Public liability: for client site visits
Public liability insurance covers injury to a third party or damage to their property caused by your business activities. For a consultant, the classic scenario is visiting a client's office, knocking a laptop off a desk, or a visitor tripping over your equipment at a workshop you are running. It is not a legal requirement, but it is widely held because client visits are common and because many office buildings, co-working spaces, and procurement teams ask to see it before letting you on site.
Consultants who work purely remotely and never meet clients face to face sometimes decide PL is a lower priority, but the cover is inexpensive relative to PI and is usually bundled into a consultant package. Limits of 1m, 2m, and 5m are standard, and again the figure is often set by what a landlord or client contract demands.
Cyber insurance: if you handle data
Consultants increasingly hold sensitive client information: financial models, strategy documents, customer databases, HR records, or login access to client systems. If that data is breached, lost, or held to ransom, you may face notification costs, regulatory exposure under UK GDPR, the cost of recovering systems, and claims from clients whose data you held. Cyber insurance is built to respond to these events, typically covering incident response, data restoration, business interruption from an attack, and liability to affected third parties.
For an IT consultant, a data analyst, or anyone with administrative access to a client environment, cyber cover has moved from optional to close to essential. The Information Commissioner's Office can take enforcement action for serious data failings, and clients are now writing data security and breach response obligations directly into contracts. A standard PI policy will not always respond to a pure cyber event, so the two covers are best treated as complementary rather than interchangeable.
Management liability for limited company directors
If you run your consultancy through a limited company, you are a company director, and directors carry personal legal responsibilities. Management liability insurance, sometimes sold as directors' and officers' (D&O) cover, protects directors and officers personally against claims arising from how they run the company. That can include allegations of mismanagement, breaches of duty, health and safety failings, regulatory investigations, and employment disputes brought against the company.
Many sole director consultants overlook this because they think of D&O as something only large boards need. In reality, even a one-person limited company is exposed: HMRC enquiries, disputes with a former contractor, or a regulator's questions can all land on the director personally. Management liability is usually modest in cost for a small consultancy and is worth pricing alongside PI when you incorporate.
Employers' liability and the legal baseline
The one cover that is legally compulsory is employers' liability. Under the Employers' Liability (Compulsory Insurance) Act 1969, if you employ anyone, including part-time staff, an administrator, or sometimes certain subcontractors who work under your direction, you must hold at least 5m of employers' liability cover. The Health and Safety Executive can fine businesses up to 2,500 for each day they trade without it. Many genuine solo consultants have no employees and therefore no legal duty, but the position changes the moment you take on your first hire.
Consultant type, cover needed, and typical minimums
The right mix of cover varies by discipline. The table below sets out common consultant types, the cover most often arranged, and the limits clients typically ask for as of 2026. Treat the figures as indicative ranges rather than fixed rules, because contracts and risk appetites differ.
| Consultant type | Core cover needed | Typical PI minimum |
|---|---|---|
| Management or strategy consultant | PI, PL, management liability if ltd | 1m to 5m |
| IT or software consultant | PI, cyber, PL | 1m to 5m |
| HR or recruitment consultant | PI, cyber, employers' liability if staff | 500,000 to 2m |
| Marketing or PR consultant | PI, PL, cyber | 250,000 to 1m |
| Engineering or technical consultant | PI, PL, product cover where relevant | 2m to 10m |
| Financial or accountancy consultant | PI, cyber, management liability if ltd | 1m to 5m |
How client contracts set your minimums
For many consultants, the insurance decision is partly made for them. Engagement letters, master services agreements, and public sector framework contracts routinely state the minimum levels of cover a supplier must hold, most commonly a PI limit, a PL limit, and employers' liability where staff are involved. You may be asked to provide a certificate of insurance before work begins and to maintain the cover for a set period after the contract ends.
The sensible approach is to read the insurance clause before you sign, not after. If a contract demands 5m PI and you hold 1m, you either raise your limit or you are in breach from day one. Because PI is claims made, you also need to keep meeting the required limit until the contract's run-off period expires, which is sometimes six years to match the limitation period for contract claims under English law.
IR35 and its effect on your insurance
IR35, the off-payroll working rules administered by HMRC, decides whether a contractor working through an intermediary should be taxed broadly like an employee. It is fundamentally a tax question and it does not stop you from buying any insurance. What it does change is how end clients view your status. One of the indicators of genuine self-employment is that you carry your own business risk, and holding your own professional indemnity, public liability, and equipment cover is one piece of evidence that you operate as an independent business rather than a disguised employee.
For that reason, many agencies and end clients ask contractors caught up in off-payroll assessments to hold their own insurance, even when the engagement is inside IR35 for tax. Insurance alone does not determine your IR35 position, and it should never be presented as a way to "get outside" the rules, but it sits alongside substitution rights, control, and financial risk as part of the overall picture HMRC considers.
Frequently Asked Questions
Does a consultant need professional indemnity insurance?
There is no general law forcing a consultant to hold professional indemnity, but for most it is the essential cover because a consultant's biggest exposure is being accused of negligent advice or a costly mistake. In practice many client contracts make PI a contractual requirement, so you often cannot win the work without it.
What insurance do IT consultants need?
IT consultants typically need professional indemnity for errors in their advice, code, or system specification, and cyber insurance because they handle client data and system access. Public liability is common for site visits, and employers' liability is a legal requirement if they employ anyone. Contracts frequently set a PI minimum of 1m to 5m.
What is management liability insurance?
Management liability, sometimes called directors' and officers' cover, protects company directors and officers personally against claims arising from how they run the business, such as alleged mismanagement, breach of duty, or regulatory investigation. Even a sole director limited company can be exposed, so it is worth considering when you incorporate your consultancy.
Does my client contract specify insurance minimums?
Often yes. Engagement letters and framework agreements commonly state minimum PI and public liability limits and may require employers' liability where staff are involved. You may need to show a certificate before starting and keep the cover running for a set period afterwards. Always read the insurance clause before signing.
How does IR35 affect consultant insurance?
IR35 is a tax rule about your employment status and does not stop you buying insurance. However, holding your own cover is one indicator that you carry genuine business risk as an independent contractor, so many clients ask off-payroll contractors to insure themselves. Insurance alone does not decide your IR35 status.
