Introduction to National Insurance

National Insurance
National Insurance - your National Insurance number, how much you pay, National Insurance classes, check your contributions record

Work out an employee's National Insurance contributions
Use this calculator to work out employee National Insurance contributions for the current tax year, if you're an employee, employer, or a software developer.

Work out a director's National Insurance contributions
Use this calculator to work out the director's National Insurance contributions for the current tax year.

National Insurance credits
Who can get National Insurance credits and how to apply or when to pay voluntary National Insurance contributions

National Insurance if you work abroad
You might be able to pay UK National Insurance while you're working abroad, depending on where you're working and how long for

National Insurance and tax after State Pension age
Age-related tax allowance, calculating tax if you carry on working, National Insurance payments

Additional State Pension
Additional State Pension, also known as the State Second Pension or SERPS, is extra money on top of your basic State Pension