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".
Economy of Scotland
The UK Government along with the Parliament of the United Kingdom retains some control over Scotland's fiscal environment, in relation to taxation (including tax rates and tax collection) and the overall share of central government expenditure apportioned to Scotland, in the form of an annual block grant. It also retains complete responsibility for the operation of the Welfare State, in terms of pensions, unemployment insurance and child benefit – as part of the UK-wide Welfare State exercised by the UK Department for Work and Pensions and HM Treasury. Whilst the UK Government retains most control over social security schemes, the Scottish Government has introduced a "Scottish Welfare Fund" to lessen the impact of cuts on welfare.