National Insurance
National Insurance (NI) is a fundamental component of the welfare state in the United Kingdom. It acts as a form of social security, since payment of NI contributions establishes entitlement to certain state benefits for workers and their families.
For the proposed scheme in Australia, see National Insurance (Australia).
Introduced by the National Insurance Act 1911 and expanded by the Labour government in 1948, the system has been subjected to numerous amendments in succeeding years. Initially, it was a contributory form of insurance against illness and unemployment, and eventually provided retirement pensions and other benefits.[1]
Currently, workers pay contributions from the age of 16 years, until the age they become eligible for the State pension. Contributions are due from employed people earning at or above a threshold called the Lower Earnings Limit, the value of which is reviewed each year. Self-employed people contribute through a percentage of net profits above a threshold, which is reviewed periodically. Individuals may also make voluntary contributions to fill a gap in their contributions record and thus protect their entitlement to benefits.
Contributions are collected by HM Revenue and Customs (HMRC). For employees, this is done through the PAYE (Pay As You Earn) system along with Income Tax, repayments of Student Loans and any Apprenticeship Levy which the employer is liable to pay.[2] National Insurance contributions form a significant proportion of the UK Government's revenue, raising £145 billion in 2019-20 (representing 17.5% of all tax revenue).[3]
The benefit component includes several contributory benefits, availability and amount of which is determined by the claimant's contribution record and circumstances. Weekly income and some lump-sum benefits are provided for participants upon death, retirement, unemployment, maternity and disability. In order to obtain the benefits which are related to the contributions, a National Insurance number is necessary.[4]
National Insurance and PAYE Service[edit]
National Insurance contributions for all UK residents and some non-residents are recorded using the NPS computer system (National Insurance and PAYE Service). This came into use in June and July 2009[23] and brought NIC and Income Tax records together on one system for the first time.
The original National Insurance Recording System (NIRS) was a more archaic system first used in 1975 without direct user access to its records. A civil servant working within the Contributions Office (NICO) would have to request paper printouts of an individual's account which could take up to two weeks to arrive. New information to be added to the account would be sent to specialised data entry operatives on paper to be input into NIRS.
NIRS/2, introduced in 1996, was a large and complex computer system which had several uses. These included individual applications to access or update an individual National Insurance account, to view employer's National Insurance schemes and a general work management application. There was some controversy regarding the NIRS/2 system from its inception when problems with the new system attracted widespread media coverage.
Due to these computer problems, Deficiency Notices (telling individuals of a possible shortfall in their contributions), which had been sent out on an annual basis prior to 1996, stopped being issued; the Inland Revenue took several years to clear the backlog. As a result, many customers were unaware whether they had incomplete years of contributions towards their State Pension (including women affected by the rise in State Pension age).