What are the requirements for a European citizen to start a small business in the UK?
According to The UK Borders Agency you do not have to apply under the points-based system to start a small business if you are a member of the European Economic Area.
There are, however, requirements in terms of VAT registration and if you intend to register a limited company in the UK then you will need to know UK Companies House requirements and UK Company Law. Some types of business, for example restaurants, also need a number of licenses to operate legally.
Anyone who is thinking of starting a business in the UK, or elsewhere for that matter, needs to plan carefully to try and give themselves the best chance of success. The Business Link in London website, has a wealth of information and interactive tools to help with this including identifying any legal registrations that may be required.