National Insurance number
The National Insurance number is a number used in the United Kingdom in the administration of the National Insurance or social security system. It is also used for some purposes in the UK tax system. The number is described by the United Kingdom government as a "personal account number".
Social security in Australia
Provides income support for people who suffer a long-term disability, which in the opinion of an assessor they will not recover from in the next two years, and which will render them unable to work or participate in a training activity enabling them to work. The basic rate for a single person is A$782.20 (as at March 2015); different rates apply to persons under 18 with no children, and to couples, married, de facto or in a same-sex relationship. The payment is income and assets-tested. However, if an applicant is permanently blind, they can receive DSP without income and assets tests, and without needing to prove any inability to work, etc. DSP can take a while to process, so as a temporary measure claimants are placed on another payment (e.g. Newstart with a medical certificate to cover the activity tests) while the payment is being assessed; once granted it is backdated to the claim date at the higher DSP rate.