National Insurance
National Insurance: the basics
The key principles of National Insurance - what is meant by Class 1, Class 2, Class 3, Class 4?
Identify the National Insurance contributions you must pay
This interactive tool will help you assess which types of National Insurance contribution you need to pay to HM Revenue & Customs
How to manage National Insurance
Where to get forms, make online returns, check NI deductions and trace NI numbers and dates of birth
Class 1 and Class 1A National Insurance contributions
The key rates and allowances that most employers will need most of the time
Class 2 National Insurance contributions
What self-employed people need to know about National Insurance
Class 3 National Insurance contributions
What to do if your National Insurance contributions are not sufficient to entitle you to the basic state benefits
Class 4 National Insurance contributions
What self-employed people need to know about Class 4 National Insurance contributions
Change NICs for an employee or director
Changes in an employee's or director's circumstances that can lead to a change in their contributions
