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Small Business Tax Dictionary

National Insurance

National Insurance is a system in the United Kingdom where contributions are made by employees, employers, and the self-employed towards certain state benefits.

What does National Insurance fund?

National Insurance contributions (NICs) fund a range of state benefits, including:

  • State Pension — the core retirement income provided by the UK government
  • Unemployment support — including Jobseeker's Allowance
  • Disability allowances — certain disability and sickness benefits
  • Maternity and paternity pay — statutory payments during parental leave

Who pays National Insurance?

  • Employees pay NICs through PAYE, deducted automatically from wages
  • Employers pay an additional contribution on top of employee wages
  • Self-employed individuals pay a different class of NICs, typically at a lower rate, and may need to arrange payment through Self Assessment

Why National Insurance matters

Understanding National Insurance is relevant for UK financial planning and legal compliance. NICs are closely tied to entitlement to the State Pension and certain other benefits — missing contributions can reduce your eventual pension entitlement. National Insurance promotes social responsibility and provides a safety net for individuals throughout their working lives.

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