Answers · UK 2025/26
What is professional indemnity insurance and who needs it?
Professional indemnity insurance covers the cost of compensation claims, legal fees, and defence costs if a client alleges that your professional advice, service, or work caused them financial loss due to negligence, error, or omission. It is essential for consultants, freelancers, and professionals such as accountants, architects, and IT contractors, and is often a contractual requirement to win client work.
Full answer
Professional indemnity insurance (PII) protects self-employed professionals, contractors, and businesses that provide advice or professional services from the financial consequences of a client claiming they suffered a loss because of that advice or work. **What it covers** PII typically covers legal defence costs, compensation payments awarded to a client, and related expenses if you are accused of negligence, giving incorrect advice, making an error in your work, breaching confidentiality, or losing client data or documents. Claims can arise even years after the work was completed, and defending even an unfounded claim can be extremely costly without insurance. **Who typically needs it** Any professional who provides advice, designs, or services where a mistake could cause a client financial loss should consider PII -- this commonly includes consultants, accountants and bookkeepers, architects and surveyors, IT contractors and software developers, marketing and PR consultants, and many other freelance or contracting professions. Some regulated professions (such as solicitors, financial advisers, and certain healthcare professionals) are legally required to hold a minimum level of PII cover. **Contractual requirements** Many clients, particularly larger businesses and public sector organisations, will only engage contractors or consultants who can demonstrate a minimum level of professional indemnity cover (often specified in the contract, such as £1 million or £2 million of cover) -- without it, you may simply be unable to win certain contracts. **How cover levels are set** The appropriate level of cover depends on the size and financial exposure of the contracts you take on -- larger, higher-value contracts generally warrant higher cover limits, since a successful claim could otherwise exceed what a lower policy limit would pay out. **Cost factors** Premiums depend on your profession, claims history, turnover, and the level of cover selected -- higher-risk professions (such as those giving financial or legal advice) typically pay more than lower-risk consulting work. **Worked example** An IT contractor delivers a project that a client claims caused a system failure and financial loss. Without PII, the contractor could face substantial legal costs and compensation from their own pocket; with PII, the insurer covers the defence costs and any valid compensation, up to the policy limit. **Practical tip** Always check the specific cover limit and exclusions in a PII policy against your actual client contracts -- being underinsured for a large contract defeats much of the purpose of holding the policy at all.
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This answer is informational only and does not constitute financial, tax or legal advice. Figures are for the 2025/26 UK tax year. See our methodology and sources.