What does National Insurance pay for?

Hi everyone,

I was looking at my latest payslip and noticed the substantial chunk taken out for National Insurance (NI) right below my standard Income Tax. It made me realise that while I understand what Income Tax generally funds, I don't actually know how the NI system works behind the scenes.
 
UK National Insurance contributions primarily fund the State Pension, the National Health Service (NHS), and various state benefits like statutory sick pay, maternity allowance, and Jobseeker’s Allowance.
 
National Insurance, in many ways, is instrumental in securing your future, especially in times of crisis. Unlike standard Income Tax, your National Insurance contributions specifically build your personal entitlement to state benefits. The largest portion funds your future State Pension. It also helps pay for the National Health Service (NHS), maternity allowance, bereavement benefits, and financial support if you become unemployed or unable to work.
 
Think of National Insurance as your personal contribution to the UK’s social safety net. While standard income tax covers general public services like schools or defense, your NI specifically funds state benefits. Great examples include the State Pension, the NHS, statutory sick pay, maternity leave, and unemployment benefits.
 
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