Guide to the Limit of Indemnity

limit of indemnity - how much is enough?The limit of indemnity (LOI) is the monetary amount of cover provided under a professional indemnity insurance policy and it's a policyholders responsibility to decide the amount which is adequate to fully protect their business.

Calculating the right limit of indemnity for a business isn’t an exact science. Whether it's £ 50,000, £ 5 million or more, getting the limit right is critical to avoid the disastrous consequences of being under-insured. 
So, how much is enough? Here are some points which should help guide you to an adequate level of cover for your business.
We recommend this guide is circulated to Partners, Directors and Senior Managers for general awareness and risk management purposes.
Man rock climbing on side of mountainWhat's your risk?

You know your clients and therefore you are in the best position to assess the risks to which you are exposed while working for them.

When assessing these risks, consider them in the context of your worst-case scenarios (catastrophes), not just the most common or likely things that can go wrong.

Major claims are always unexpected and the circumstances usually unforeseen and their size often catch people unawares. 

Being under-insured can destroy your business so it's important to spend some time discussing possible major claim scenarios at Board or Partner level. 

The claimant's legal costs

The third-party (the claimants') legal costs can double the amount of the PI claim against you. These legal costs will be a major part of the claim and you need to ensure that your level of cover not only factors in the client loss but also factors in a significant amount for their legal costs.

What are your regulatory requirements?

If you are a regulated business, check the mandatory insurance requirements of your regulator to ensure you fully comply with the minimum level of cover they require you to carry. But do bear in mind that this minimum requirement will be a simple arbitrary figure, without any consideration of the specific risks to your business. 

Consider historic work

This is ‘claims made’ insurance cover. It’s the level of cover purchased today which will apply to all of your historic work. So, if you reduce your cover because a project or piece of work has been completed and you feel you no longer need that higher level of cover, bear in mind that it will be the lower level that now applies if a claim comes in, NOT the level you were purchasing when you carried out the work.


Professional indemnity claims can take years to reach settlement. In some cases, for larger claims it can take five years or more! But the level of the insurance cover is fixed at the limit purchased when the claim is first notified. Would that limit still be enough to cover the claim and costs at the time of settlement in five years? You should factor in inflation.

Statutory interest

PI claims usually include an amount for statutory interest on the loss, incurred over several years. This can significantly increase the amount of the claim eventually paid. Factor in an amount for this part of a potential claim against you.

Spilled milk on a tableExpecting the unexpected

There’s no exact formula for calculating an accurate level of PI cover and many professionals do not always appreciate or even imagine the scale of the worst-case scenario risks to their business. In the event that this does happen, they find themselves under-insured and the main reasons for this are:


  • They wanted to spend the minimum amount possible on insurance.
  • They only bought the minimum amount of cover required by their regulator.
  • They didn't believe a catastrophe scenario could ever happen to them.
  • They didn't fully appreciate the full extent of the risks they face.
Minimum limit of indemnity

Although most Institutes and Associations provide their member firms with specific requirements for the level of PI insurance cover they must carry, this is only a minimum requirement and cannot possibly take account of each firm's individual risk. Based only on our experience, we recommend the following as a minimum guide:

  • Sole Trader - Insure for at least four times fee income (£ 250,000 minimum)
  • Limited Company - Insure for at least three times fee income (£ 500,000 minimum)
  • Partnership - Insure for at least four times fee income (£ 1 million minimum)
How much does it cost?

The cost of increasing the level of cover reduces as the LOI increases, making it extremely good value. If you would like to discuss your level of insurance cover or require indications of the cost of increasing your cover please contact us.

Claims made cover   

It's important to know that professional indemnity falls into the 'claims made' type of insurance. This means that the policy LOI in force when the claim is first notified will apply to the claim, not the LOI in force when the work causing the claim was carried out. This is particularly relevant if the limit of indemnity is ever reduced as the lower limit would apply to all future claims. 

For more information about this guide or to talk to one of our experts, call 0345 251 4000.


This guidance note is intended for information purposes only. It is not and does not purport to be legal or accountancy advice. Whilst all care has been taken to ensure the accuracy of the guidance note it is not to be regarded as a substitute for specific advice. This guidance note shall not be reproduced in any form without our prior permission. © Professional Indemnity Insurance Brokers Ltd.