
National Insurance (NI) is a fundamental component of the welfare state in the United Kingdom. It acts as a form of social security, with payment of NI contributions establishing entitlement to certain state benefits for workers and their families. National Insurance contributions form a significant proportion of the UK government's revenue, raising £145 billion in 2019-20, and representing 17.5% of all tax revenue. The contributions are collected by HM Revenue and Customs (HMRC) and are paid into a specific pot called the National Insurance Fund. The money is used to pay for benefits and pensions, and any surplus is invested to reduce the national debt.
| Characteristics | Values |
|---|---|
| Who pays National Insurance Contributions (NICs) | Employees, employers, and the self-employed |
| What are NICs used for | NICs are used to pay for contributory benefits, mainly the state pension |
| Where does the money from NICs go | NICs are paid into a specific pot called the National Insurance Fund, which is separate from the rest of the tax money collected for the treasury |
| How much money does the National Insurance Fund receive | In 2017/18, about £100 billion went into the fund, and about £100 billion left the fund to pay for benefits |
| What happens to surplus funds in the National Insurance Fund | Surplus funds are invested to reduce the national debt |
| What is the current status of NICs | As of April 2020, an actuarial evaluation of the long-term prospects for the National Insurance system was conducted, with the report published two years later |
| How are NICs calculated for employees | Employees pay NICs on their earnings above a threshold called the Lower Earnings Limit, which is reviewed annually |
| How are NICs calculated for the self-employed | The self-employed pay NICs through a fixed weekly or monthly payment and a percentage of net profits above a certain threshold, which is reviewed periodically |
| Are there any voluntary NICs | Yes, individuals can make voluntary NICs to fill gaps in their contribution record and protect their entitlement to benefits |
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What You'll Learn

National Insurance contributions fund state pensions and benefits
National Insurance (NI) is a fundamental component of the welfare state in the United Kingdom. It acts as a form of social security, with payment of NI contributions establishing entitlement to certain state benefits for workers and their families. Introduced by the National Insurance Act 1911, 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.
Today, workers pay contributions from the age of sixteen until 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. Self-employed individuals also stop paying Class 4 National Insurance from 6 April (the start of the tax year) after they reach State Pension age.
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). The benefit component includes several contributory benefits, the availability and amount of which are 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 related to contributions, a National Insurance number is necessary. This number ensures that an individual's National Insurance contributions and tax are recorded against their name only. Individuals may also make voluntary contributions to fill any gaps in their contribution record, thus protecting their entitlement to benefits.
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Surplus funds are invested to reduce national debt
National Insurance (NI) is a fundamental component of the welfare state in the United Kingdom. It acts as a form of social security, with payment of NI contributions establishing entitlement to certain state benefits for workers and their families. Introduced by the National Insurance Act 1911, the system has been subjected to numerous amendments in succeeding years.
National Insurance Contributions (NICs) are paid by employees, employers, and the self-employed in the UK. They pay for contributory benefits, mainly the state pension. NICs are paid into a specific pot called the National Insurance Fund, rather than being put with the rest of the tax money collected for the Treasury. In 2019-20, NICs raised £145 billion, representing 17.5% of all tax revenue.
Surplus funds from NICs are invested to reduce the national debt. This does not affect the amount of pensions or benefits people receive in return for their NICs. The UK's national debt is currently £1,800 billion, with about £40 billion paid in interest each year. The government invests surplus NICs in the national debt, effectively reducing the debt.
The House of Commons Library emphasizes that these funds are held in the government's 'Call Notice Deposit Account' on loan. The account is administered by the Debt Management Office, and the government cannot use this facility to extract money from the fund as an extra source of revenue.
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NICs are paid by employees, employers, and the self-employed
National Insurance Contributions (NICs) are paid by employees, employers, and the self-employed. For employees, NICs are collected through the PAYE (Pay As You Earn) system, alongside Income Tax, Student Loan repayments, and any Apprenticeship Levy that the employer is liable to pay. The rates at which employees and employers pay NICs depend on various factors, and HM Revenue and Customs (HMRC) assigns an 'NI Table Letter' to each set of contribution rates. Employers are tasked with allocating the appropriate table letter to their employees based on their circumstances.
The self-employed also contribute to NICs, but their payments are structured differently. They make fixed weekly or monthly payments, along with a percentage of their net profits above a certain threshold. This threshold is periodically reviewed. Self-employed individuals can also make voluntary contributions to fill any gaps in their contribution record, thereby safeguarding their eligibility for benefits.
Employees and the self-employed start paying NICs when they turn 16 and continue until they reach the state pension age. Employers, however, continue making contributions for employees who are over the state pension age. For employees, NICs are calculated based on each job, rather than their total income. Consequently, an individual with multiple low-paid jobs may contribute less than someone earning the same amount from a single job.
NICs are a significant source of revenue for the UK government, generating £145 billion in 2019-20, which represented 17.5% of all tax revenue. The majority of NICs are directed into the National Insurance Fund, which is primarily used for benefits. Before allocating funds to this purpose, a payment is made towards the NHS. In 2022-23, this payment amounted to £41.8 billion, leaving £129 billion for the fund. The benefits financed by the fund include the state pension, jobseeker's allowance, and incapacity benefit.
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NICs are paid into a specific pot, the National Insurance Fund
National Insurance Contributions (NICs) are paid by employees, employers, and the self-employed in the UK. They are a fundamental component of the welfare state, acting as a form of social security. NICs are paid into a specific pot, the National Insurance Fund, rather than being put with the rest of the tax money collected for the Treasury. This fund sees huge sums of money flowing in and out each year. In 2017-18, for example, about £100 billion went into the fund via NIC contributions, and about £100 billion left the fund to pay for benefits.
The benefit component of the fund includes several contributory benefits, the availability and amount of which are 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.
Surplus funds from NICs are invested in the UK's national debt, effectively reducing the debt. The government confirmed this in a response to a freedom of information request, stating that the balance of the National Insurance Fund (NIF) increased by £2 billion in 2017-18, with a closing balance of £24 billion, which was used to reduce the national debt.
NICs are a tax on earnings, and they form a significant proportion of the UK government's revenue, raising £145 billion in 2019-20, representing 17.5% of all tax revenue.
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You need a National Insurance number to claim benefits
National Insurance (NI) is a fundamental component of the welfare state in the United Kingdom. It acts as a form of social security, with payment of NI contributions establishing entitlement to certain state benefits for workers and their families. These include benefits for death, retirement, unemployment, maternity, and disability.
To receive these benefits, an individual must have a National Insurance number. This number is typically sent to individuals in the three months before their 16th birthday, provided that a parent or guardian has filled in a Child Benefit claim form. If not, one can be applied for online. If you are a UK resident, have the right to work in the UK, and are working, looking for work, or have an offer to start work, you will need a National Insurance Number.
National Insurance contributions are collected by HM Revenue and Customs (HMRC) through the PAYE (Pay As You Earn) system. For employees, this is done alongside income tax, repayments of student loans, and any apprenticeship levies. These contributions form a significant proportion of the UK government's revenue, raising £145 billion in 2019-2020, which represented 17.5% of all tax revenue.
It is important to note that not all National Insurance contributions count towards state benefits or pensions. For example, self-employed individuals paying Class 4 contributions do not count these towards state benefits or pensions. Individuals may also make voluntary contributions to fill gaps in their contribution records and protect their entitlement to benefits.
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Frequently asked questions
National Insurance Contributions (NICs) are paid by employees, employers, and the self-employed in the UK. They are used to fund contributory benefits, mainly the state pension. Surplus funds from NICs are invested to reduce the national debt.
Contributory benefits are benefits for which eligibility depends on whether an individual has paid enough National Insurance Contributions. Examples include the state pension, as well as benefits provided upon death, retirement, unemployment, maternity, and disability.
For employees, National Insurance Contributions are collected by HM Revenue and Customs (HMRC) through the PAYE (Pay As You Earn) system, along with income tax. Self-employed individuals contribute through a fixed weekly or monthly payment and a percentage of net profits above a certain threshold.
To obtain benefits related to National Insurance Contributions, an individual must have a National Insurance number. This ensures that contributions and tax are recorded against an individual's name.































