Do i need professional indemnity insurance for my small business?
If you give advice, provide a service, or produce work for clients, you could face a legal claim if something goes wrong — even if it's an honest mistake. Professional indemnity insurance (also called PI insurance or PI cover) is the policy that can help protect you in those types of situations, helping to cover the legal costs and any compensation you may have to pay.
Whether you are an architect, contractor or even a recruitment or marketing agency, you may want to consider professional indemnity cover as part your insurance policy. This guide explains what professional indemnity insurance is, who needs it, and how it works — so you can make an informed decision on whether you want to take it out.
Quick Answer
Not all businesses need professional indemnity (PI) insurance by law — but the reality is — some client contracts may require you to have it. If you give professional advice, provide a service, or handle client data, a single mistake could lead to a costly claim. PI insurance can help cover the legal and compensation costs if a client says your work caused them financial harm. Many professional bodies in the UK also require it – so always check this for yourself.
We create this content for general information purposes and it should not be taken as advice. Always check policy documentation for details and seek professional advice.

What is professional indemnity insurance?
Professional indemnity insurance is a type of business insurance that helps cover you if a client claims your advice, designs, or professional services caused them financial loss. It can help pay for your legal defence costs and any compensation or settlement the court requires you to pay when involved in a claim.
For example, imagine you are an architect and a design you have provided has a major error and this leads to design project failing, costing your client a lot of money. The client then holds you responsible and sues for the money they lost because of your mistake. Without the right PI cover, you pay those costs out of your own pocket. With it, your insurer could help cover it — paying towards both your legal fees and any damages you need to pay, up to your policy limit. This can help give you some peace of mind in case you ever do make a mistake.
PI insurance is regulated in the UK by the Financial Conduct Authority (FCA). Policies typically work on a 'claims-made' basis, which means you are covered if you had the right PI cover in place at the time the claim is made — rather than when the work was done.
Completely new to the world of business insurance? Read up on our business insurance guides for more information on cover types, protecting against different risks and more.
Who needs professional indemnity insurance?
Professional indemnity insurance is designed for anyone who provides advice, designs, or professional services that clients rely on — including small businesses and sole traders — as it protects them if a client claims their work caused financial loss.
In the UK, PI cover is commonly taken out by:
- Consultants and business advisers
- IT contractors and software developers
- Accountants, bookkeepers, and financial advisers
- Architects, engineers, and surveyors
- Solicitors and legal professionals
- Designers, copywriters, and marketing agencies
- Trainers, coaches, and tutors
- Healthcare professionals in private practice
In fact, some professions in the UK require professionals to have PI cover before they can even practice. Different regulatory bodies may have different requirements, so always check this yourself.
For many other types of businesses, it is not a legal requirement, but clients and professional bodies may make it a contractual requirement before they will work with you.
Why do I need professional indemnity insurance?
You might need professional indemnity insurance because even the most experienced professionals can make mistakes or give incorrect advice, and this could lead to costly claims. Depending on the claim, legal costs alone could run into tens of thousands of pounds. Even if the client doesn’t win the claim, you might still face court fees you need to pay.
Here are some of the main reasons UK small businesses and sole traders should consider taking out PI cover:
- Your client contract requires it - Many businesses, public sector bodies, and even agencies will not hire a freelancer or small business unless they can show a proof of a valid PI policy. So, having it might help in securing work.
- Your professional body requires it - Bodies such as the ICAEW (accountants), RICS (surveyors), and the Bar Standards Board (barristers) require members to have minimum levels of Professional Indemnity cover to practice. If you are a member of an association or professional body, you should check your own requirements.
- A mistake could cost more than your business - Even a small mistake could cost you - especially if you are filling in tax returns, creating designs or advising on big investments. Even defending a claim that is gets dropped could cost thousands in legal fees.
- Mistakes can happen, even to good businesses - An error in a report. A missed deadline that causes a client financial loss. Advice based on information that later turns out to be wrong — these things can happen to anyone.
When should you consider professional indemnity insurance?
You could consider professional indemnity insurance before you start your business activities. Because most PI policies work on a claims-made basis, you are only covered if you have a valid policy in place when a claim in made, unless you specifically have retroactive cover.
The three most common triggers that tell you it's time to get PI cover are:
- A client contract specifies it - This is a common trigger for UK freelancers and contractors. If a client sends you a contract that lists minimum PI cover as a condition of work, you could consider getting a policy in place before you start the work.
- You join a regulated profession - Certain sectors — legal, financial services, healthcare, architecture, surveying — may require you to have PI cover before you can actually do any business.
- Your business grows - Once you move from working with people you know to serving clients you don’t know - you might have a higher chance of getting a complaint. Having cover in place, might give you some peace of mind when working with new clients.
You should also think about 'run-off cover' when you stop trading or retire. This is a type of PI insurance that covers claims made after your business closes, for work you did while it was open. Without it, a claim on old work could leave you responsible to pay out – which not ideal when you are enjoying retirement.
According to ABI, SMEs are most willing to pay for professional indemnity cover when it comes to ‘extra cover types’, including professional indemnity, business interruption, legal expensive and even terrorism, suggesting many small businesses find it valuable.
How does professional indemnity insurance work?
Although it sounds complicated – once you understand it – it’s fairly simple. Professional indemnity insurance works by protecting you from any legal fees or compensation costs should a client make a formal claim against you for professional negligence, mistakes in your work, or omission. It can almost act as a lifeline in case the unexpected happens and you are left to pay up.
Here is how the process typically works in the UK:
- A claim is made - Your client formally alleges that your work caused them a financial loss or harm — for example, through bad advice, a design error, or a missed contractual obligation.
- You notify your insurer - You must tell your insurer about any claim — or any situation that might lead to a claim — as soon as possible. If you don’t do it straight away, this might affect your claim.
- Your insurer takes over the legal response - Your insurer will typically engage with solicitors on your behalf. They work to resolve the claim raised, either by settling or by defending you in court.
- Costs are only covered up to your policy limit - Your policy only covers costs up to the indemnity limit — it can contribute towards legal fees, expert witness expenses, and any agreed or settled compensation, but only up to the limit you selected when the policy was arranged — if you’re unsure what that limit is, check your policy wording.
Most UK Professional Indemnity policies offer indemnity limits starting at £100,000, rising to £1 million, £2 million, or more. The right limit depends on many factors including the size and nature of your business activities.
Common misconceptions about professional indemnity insurance?
“I’m too small to need cover”, “I don’t get any complaints, so I don’t need it” - does this sound like you? Many small business owners and freelancers put off getting PI cover for various reasons that may not be true.
| Myth | Reality |
| 'I'm a sole trader, so I don't need it' | Sole traders who give advice or services face the same legal risks as any other business. Your business structure doesn't reduce your liability. |
| 'My clients are small — the risk is low' | Claim values aren't about the size of your client. A small business can still lose tens of thousands of pounds because of in correct advice. |
| 'My contract protects me' | Liability clauses in contracts may help — but they don't get rid of the chance of a claim. A client can still sue you. |
| 'I've never had a complaint, so I don't need it' | Just because you haven’t had a claim, doesn't mean one won’t happen. Just one new client or one piece of advice going wrong could leave you out of pocket. |
Compare professional indemnity insurance with Bionic
Finding the right PI policy — at the right price — can take time if you go insurer by insurer and sometimes the only option is to go straight to a broker, like Bionic. You can compare professional indemnity insurance with Bionic by answering a few straightforward questions about your business, and we'll match you with quotes from trusted insurers that fit your business and cover needs.
Here's what to have ready when you compare:
- Your profession and the type of work you do
- Your estimated annual turnover or fee income
- The indemnity limit your client contracts or professional body require
- Any previous claims or circumstances that could give rise to a claim
Start a quote online for professional indemnity insurance with Bionic
FAQs
Do I need professional indemnity insurance as a sole trader?
It’s not always a legal requirement, but your contracts may require it or a professional body may set it out as a condition of practice. As a sole trader, there is no legal separation between you and your business. This means that if a client wins a claim against you, they can potentially take your personal assets — savings, property, and even income away when it comes to settle or compensation. PI insurance can help give you a financial buffer to help if this happens. If you give advice, deliver a professional service, or handle client information, PI cover should be considered. Read more on sole trader insurance.
Do I need professional indemnity insurance as a limited company?
Not by law in most cases — but limited companies face the same contractual and professional body requirements as sole traders. While being a limited company can provide some protection compared to a sole trader, directors can still face personal liability in certain circumstances. This means if you are the director of your own company, you could still be held liable, and your company could still have professional negligence claims from clients, customers or suppliers. If you have any contracts with larger businesses, and agencies they may require your limited company to have valid PI cover before working with you. In this case, the right PI cover could potentially help you secure work, and with bigger clients, partners or suppliers.
Do I need professional indemnity insurance as a contractor?
You could consider it if you work through a contracted arrangement with clients rather than as a permanent employee. Most professional contracts in sectors such as IT, engineering, finance, management consulting, and marketing may require contractors to hold PI insurance. Umbrella companies and personal service companies (PSCs) working under IR35 rules should check their contracts carefully, as the requirement to hold PI cover often applies whether you are inside or outside IR35. Always check this yourself if you are a contractor by speaking to a professional accountant.*
*This is for informational purposes only as Bionic does not provide financial advice. Always consult your own financial advisor for financial advice.



