What is National Insurance Number of French citizens who are alowed to stay & work in UK ?
A National Insurance (NI) number is a personal number used: to record a person’s NI contributions and credited contributions because it is needed when claiming social security benefits. A NI number should only be given to one person and must only be used by that person. There are circumstances when, by law, you must apply for a NI number. There is a process of checks we need to go through when you apply for an NI number. Firstly, we make sure you need an NI number. Secondly, we make sure you haven’t already got an NI number. If you need an NI number and you haven’t already got one, we will write and ask you to come to an interview.