You pay National Insurance contributions (NICs) to build up your entitlement to certain social security benefits, including the State Pension. The type and level of NIC you pay depends on how much you earn and whether you're employed or self employed. You stop paying NICs when you reach State Pension age.
You pay NICs if you are an employee or self-employed and you are aged 16 and over, providing your earnings are more than a certain level. You stop paying NICs at State Retirement age. This is currently 65 for men and 60 for women but will gradually increase to 65 for women over the period 2010 to 2020.
Your National Insurance number (NI number) is your own personal account number. The number ensures that the National Insurance contributions and the tax you pay are properly recorded on your account. It also acts as a reference number for the whole social security system.
The only people you should ever give your NI number to are:
Entitlement to many benefits depends on your National Insurance contribution record (see 'Benefits that depend on NICs' below) so it's very important not to give your number to anyone else.
You will also be required to provide your NI number if you open an Individual Savings Account (ISA).
If you don't already have a NI number you must apply for one:
To be able to apply you must be:
If you are a parent or guardian and receiving Child Benefit, any children you care for will automatically get a card showing their NI number just before they reach the age of 16.
To apply for a NI number you will need to telephone the Jobcentre plus NI allocation service helpline on 0845 600 0643. They will make sure you need a number and arrange for you to undertake an evidence of identity interview.
Evidence of identity interview
The interview will usually be one-to-one (unless, for example, you need an interpreter). The interviewer will ask you questions about your background and circumstances.
The interviewer may also ask you to fill in an application form.
If you don’t have any official documents
If you haven't got any official documents you still have to go to the interview. You might be able to prove your identity with the information you give at the interview.
The following amounts apply for the 2008-2009 tax year:
Your entitlement to the following benefits and/or the amount you can get will depend on your (or in some cases your spouse or civil partner's) NIC contributions: