Professional indemnity insurance explained for business owners

Published Tuesday 22 September 2026

Table of contents

• What is professional indemnity insurance?
• What does professional indemnity insurance cover?
• Who needs professional indemnity insurance?
• Do you need professional indemnity insurance?
• Professional indemnity vs public liability insurance
• How much professional indemnity insurance costs
• How much cover do you need?
• Keep your business finances organised with Xero
• FAQs on professional indemnity insurance

Key takeaways

• Professional indemnity insurance covers legal defence costs and compensation if a client claims that your advice, service, or work caused them a financial loss.
• It isn't a general legal requirement, but many regulators and client contracts insist you hold it before you can trade.
• As a rough guide, some UK insurers advertise entry-level cover from around £6 to £10 a month, and policies are commonly available with cover levels from £50,000 to £5 million, though prices vary widely.
• It's different from public liability insurance, which covers injury or property damage to third parties, so many self-employed people hold both.

What is professional indemnity insurance?

Professional indemnity insurance is one type of business insurance that covers the cost of defending a claim and paying compensation when a client says your professional advice, service, or work caused them a financial loss. It's built for people who sell their knowledge and skill, so it fits freelancers, consultants, contractors and other self-employed workers well.

Say you're a marketing consultant and a campaign you designed misses a brief, or you're a freelance designer and a client loses money because of an error in your files. If they take action against you, this cover helps pay your legal costs and any compensation you owe. According to the Association of British Insurers (ABI), it compensates clients for loss or damage that results from negligent services or advice.

You don't need to be an accountant or a lawyer to understand it. The idea is simple: if a mistake in your work leaves a client out of pocket, the policy stands behind you so one claim doesn't sink your income.

What does professional indemnity insurance cover?

Cover varies by policy, but professional indemnity insurance usually protects you against a client claim linked to your professional work. The most common inclusions apply whether you're a sole trader or run a limited company.

Most policies include the following:

• professional negligence or a genuine mistake in your work
• bad or inaccurate advice a client relied on
• breach of your duty of care to a client
• loss of client documents or data you were holding
• unintentional breach of confidentiality or intellectual property
• defamation, including libel and slander
• legal defence costs and any compensation or damages awarded

Policies also carry exclusions. They generally won't cover deliberate or dishonest acts, work outside the profession named on your policy, or injury and property damage, which sit with other types of insurance.

The ABI also points to two features worth understanding in plain English:.

• Most cover works on a claims-made basis, which means the policy has to be active when the claim is made against you, not just when you did the work.
• If you stop trading, run-off cover keeps you protected against claims that arrive after you've closed, which matters because a client can raise an issue months or years later.

Who needs professional indemnity insurance?

Anyone who gives advice, delivers a professional service, handles client data, or produces work a client depends on should consider professional indemnity insurance. The higher the stakes of your work, the more useful the cover.

It's commonly held by self-employed people such as:

• management and marketing consultants
• freelance designers, writers, and copywriters
• IT contractors and web developers
• accountants and bookkeepers offering services to clients
• architects, surveyors, and other built-environment specialists

Tradespeople who give design input or technical advice, and landlords who manage property on behalf of others may also need it once their work carries professional risk.

Professions where it's mandatory

Some regulated professions must hold professional indemnity insurance as a condition of practising. Solicitors need it under Solicitors Regulation Authority rules, financial advisers under Financial Conduct Authority rules, architects through the Architects Registration Board, and chartered surveyors through the Royal Institution of Chartered Surveyors. Healthcare professionals face the same duty; the Health and Care Professions Council requires registrants to have a professional indemnity arrangement appropriate to their practice, and self-employed registrants must arrange their own.

Even where no regulator demands it, client contracts often do. Larger clients and public sector bodies routinely ask freelancers and consultants to hold a set level of cover before they sign, so it's worth checking the terms before you start work.

Do you need professional indemnity insurance?

For most self-employed people, professional indemnity insurance isn't a standalone legal requirement, so no general law forces you to buy it. You most likely need it, though, if you advise clients, work in a regulated profession, or have a contract that asks for it.

Run through this quick self-check to gauge your risk:

• Do clients pay for your expertise, advice or judgement?
• Would a mistake in your work leave a client financially worse off?
• Does your regulator or professional body require cover?
• Have any client contracts asked you to hold a minimum level of cover?
• Do you handle sensitive client documents or data?

If you answered yes to any of these, professional indemnity insurance is worth serious thought. Even a claim that turns out to be groundless can cost you time and legal fees, and the cover helps you handle it without dipping into your own money.

Professional indemnity vs public liability insurance

These two policies protect against different risks. Professional indemnity insurance covers client claims for negligence, mistakes or advice that caused a financial loss, while public liability insurance covers third-party claims for injury or property damage linked to your business.

A short example makes the split clear: If a client sues because your report contained an error that cost them money, that's a professional indemnity matter. If a visitor trips over your equipment on a site and gets hurt, that's a public liability matter.

Many self-employed people carry both because their work creates both kinds of risk. A guide from Companies House notes that public liability is one of the most popular small business policies, while professional indemnity suits those who offer a professional service or advice. If you meet clients, visit their premises, or produce advisory work, it's worth weighing up both.

How much professional indemnity insurance costs

There's no set price for professional indemnity insurance in the UK. As a rough guide, some insurers advertise entry-level cover from around £6 to £10 a month for lower-risk work, but your own price depends on your profession and the cover you choose. There's no single figure, because insurers weigh up how likely a claim is and how large it could be.

Four main factors drive your premium:

• your profession and how much risk your advice or work carries
• your annual turnover and the size of the clients you serve
• the level of cover you select, from £50,000 up to £5 million or more
• your claims history and how long you've traded

A freelance copywriter with modest turnover will usually pay far less than an IT contractor running high-value projects for large clients. Getting a few quotes based on your real turnover and cover level gives you the clearest picture of your own cost.

How much cover do you need?

The right level of cover matches the potential cost of a claim against you, not just the cheapest premium. Cover levels typically range from £50,000 to £5 million, so the aim is to land on a figure that reflects your work rather than guessing.

Work through these steps to set your level:

1. Check your contracts. Note any minimum cover your clients or regulator require, and treat that as your floor.
2. Size up a worst-case claim. Estimate the largest financial loss a client could face if your work went wrong, including their legal costs.
3. Weigh your turnover and risk. Match cover to the value of the projects you take on and how exposed your profession is.
4. Review it each year. Increase your cover as your turnover grows or you win larger clients, so protection keeps pace with your business.

Keeping clear records of your contracts, income, and client work makes these decisions easier, because you can see your real exposure at a glance. That's where staying on top of your day-to-day admin pays off.

Keep your business finances organised with Xero

Protecting your income starts with knowing your numbers, from your turnover to the value of the work you take on. When your books are current, you can set the right level of cover, answer a client contract's insurance question in minutes, and budget for premiums without a scramble.

Cloud accounting software brings your invoices, expenses and cash flow position into one place, so the admin behind a well-run self-employed business takes far less time. You can track what each client owes you with online invoicing tools and see your turnover clearly when it's time to review cover.

Would you rather focus on the work your clients pay for? Get one month free.

FAQs on professional indemnity insurance

These quick answers cover the questions self-employed people ask most about professional indemnity insurance.

What happens if you don't have professional indemnity insurance?

You'd have to pay any legal defence costs and client compensation yourself, which can run into large sums even for a claim you successfully defend. If your regulator or a client contract requires cover, going without could also break your terms of practice.

Can you work without professional indemnity insurance?

In many cases yes, since it isn't a general legal requirement, but you'd carry the full financial risk of any client claim. You can't work without it where a regulator or a client contract makes it a condition.

Is professional indemnity insurance a legal requirement?

It isn't required by general law for most self-employed people. It becomes mandatory only for certain regulated professions, such as solicitors, financial advisers and healthcare professionals, whose regulators set it as a condition of practising.

What is the purpose of indemnity insurance?

Its purpose is to protect you financially when a client claims your professional work caused them a loss. It puts the cost of defending the claim and paying any compensation onto the insurer rather than you.