Professional indemnity insurance is a form of liability cover. If you provide a service and/or advice in return for a separate fee or as part of an overall contract, you could face a claim for professional negligence.
There is no legal requirement, under UK law, to have this cover in place. What you may find though, and this is happening more and more, is that you are required to have this as part of a contract you may carry out. It depends whether you are working for the private or public sector whether cover is requested and also, at what limit.
Unlike employers liability insurance, which is not only legally required but must be at a minimum limit of indemnity of £5,000,000, you can get professional indemnity at varying limits of indemnity, usually starting at £100,000.
If you do not have the cover in place at the moment, you will usually have two options. You can either add this to your existing combined (employers, public and products) liability insurance or you can take out a separate policy. Adding this to your existing policy is rare. The reason being that there are so few insurers that offer the standard combined liability insurance as well as professional indemnity. There are some that will do this, but they do not tend to be competitive across the board.
You will be better speaking to a broker and at least getting a quote both to add to your existing policy (if possible) and as a separate stand alone cover. At least this way you can compare the options that are available.
Also, speak to the broker and get their advice as to the limit of indemnity that you not only would possibly need but also that which would comply with your contract.

