Indemnity Insurance Explained: Definition, Policies and Cost

The simplest indemnity insurance definition is this: it is cover that pays to defend you, and to compensate the other side, when someone claims your work, advice or a legal gap has caused them a loss. “Indemnity” means putting a person back in the financial position they would have been in had the problem never happened, and an indemnity insurance policy is how a business funds that promise without it coming out of its own pocket.

The word covers several different products, though, and people often mix them up. This guide separates them, explains what each one actually does, and sets out what drives the cost, so you can work out which type your business needs.

The core indemnity insurance definition

At its heart, indemnity is a contractual idea: one party agrees to compensate another for a defined loss. Insurance turns that promise into a funded policy. When your business buys indemnity cover, the insurer agrees to step in and meet a claim, up to an agreed limit, in exchange for a premium.

The two parts that matter on almost every policy are the same: the cost of legally defending the claim, and the damages or settlement if the claim succeeds. Legal defence alone can run into serious money even when you have done nothing wrong, which is why the cover exists at all.

The main types you will meet

“Indemnity insurance” is an umbrella term. The version a business actually buys depends on what it does.

Professional indemnity insurance is the one most people mean. It protects firms that give advice, designs, specifications or instructions for a fee. If a client says your professional mistake, negligence or breach of confidentiality cost them money, this is the policy that responds. It matters enormously to IT consultants, accountants, architects, surveyors and designers. Our guide to cyber insurance for IT contractors and consultants goes deeper on how this sits alongside cyber cover for tech firms.

Property indemnity insurance is a one-off, single-premium policy used in conveyancing. It covers a specific legal defect in a property, for example a missing building regulations certificate or a restrictive covenant, so a sale can complete without resolving the underlying problem. It is a fixed product for a fixed risk, not an annual business policy.

Warranty and indemnity insurance is used in company sales. It protects a buyer or seller against losses arising from a breach of the warranties given in a sale agreement. It is a specialist transaction product rather than something a small business renews each year.

For most trading businesses, “indemnity insurance” means professional indemnity, so that is where the rest of this guide focuses.

How an indemnity insurance policy works

The crucial feature of a professional indemnity insurance policy is that it works on a “claims-made” basis. The policy that pays out is the one in force when the claim is made against you, not the one in force when you did the work. That has a practical consequence: if you stop trading or let cover lapse, a claim that lands afterwards may not be covered, even for work done while you were insured. Firms in this position often buy “run-off” cover to bridge the gap.

Policies carry a limit of indemnity, the most the insurer will pay, and you choose it. Cover commonly ranges from modest limits for low-risk freelancers up to several million pounds for regulated firms. Some professional bodies set a minimum limit you must hold.

Indemnity insurance vs public liability

This is the comparison that confuses people most, because both are “liability” cover, but they protect against different things.

Professional indemnity covers claims from clients about your professional work: the advice was wrong, the design was flawed, the data was mishandled. Public liability covers claims from third parties about physical harm: a visitor trips over your equipment, or you damage a client’s property while on site.

There is one more technical difference. Public liability usually works on a “losses occurring” basis, so the policy in force when the incident happened is the one that responds, even after it expires. Professional indemnity, as above, is claims-made. Many service businesses need both. The Financial Conduct Authority regulates how these policies are sold in the UK.

What drives the cost of indemnity insurance

There is no single price, because the cost of indemnity insurance is built from your specific risk. The main factors are:

• Your profession. Advice that carries large financial consequences, such as legal, financial or structural work, costs more to insure than lower-risk consulting.
• Your level of cover. A higher limit of indemnity means a higher premium.
• Your turnover and claims history. Bigger contracts and past claims both push the price up.
• The work itself. High-value projects and contracts with demanding indemnity clauses raise the insurer’s exposure.

Because the buy prompts vary so widely, the only reliable figure is a quote for your own business. Treat any headline number as a starting point, not the price you will pay.

Is it a legal requirement?

For most businesses, no. But several regulated professions must hold it: solicitors under SRA rules, architects under the ARB, RICS-registered surveyors and FCA-regulated financial advisers among them. Many client contracts also make a minimum level of professional indemnity a condition of being hired, so in practice plenty of firms that are not legally compelled still cannot win work without it.

If your business handles client data or systems, you should also look at how indemnity cover interacts with cyber risk. Our cyber insurance vs cyber liability explainer and the do I need cyber insurance guide cover where the lines fall.

Frequently asked questions

What is the simplest indemnity insurance definition? Indemnity insurance is cover that pays to defend you and to compensate the other party when a claim says your work, advice or a legal defect caused them a financial loss. The aim is to restore the claimant to the position they would have been in had the problem not occurred.

Is indemnity insurance the same as public liability? No. Professional indemnity covers claims from clients about professional mistakes or negligence, while public liability covers claims from third parties about physical injury or property damage. Many service businesses need both because they protect against different risks.

How much does indemnity insurance cost? There is no fixed price. The cost of indemnity insurance depends on your profession, the level of cover you choose, your turnover and your claims history. The only accurate figure is a quote based on your own business, so compare a few before you buy.

What does claims-made mean on an indemnity insurance policy? Claims-made means the policy that pays is the one active when the claim is made against you, not when you did the work. If cover lapses, a later claim may not be covered, which is why firms that stop trading often buy run-off cover.

What is property indemnity insurance? Property indemnity insurance is a one-off policy used during a property purchase to cover a specific legal defect, such as a missing certificate or a restrictive covenant, so the sale can complete without first resolving the underlying issue.