UK National Insurance Calculator
Estimate National Insurance contributions for employees, employers and self-employed workers.
Enter gross pay subject to National Insurance.
Payroll NI is normally calculated per pay period. This calculator annualises your selected pay for an estimate.
Special categories can have different employee or employer rules.
Estimated annual National Insurance
£0
Estimated contribution for the selected tax year
Annual amount£0
Monthly equivalent£0
Weekly equivalent£0
Contribution in main band£0
Contribution above upper limit£0
Voluntary Class 2£0
Effective contribution rate0%
Estimate only. Actual National Insurance depends on pay period, category letter, director status, multiple jobs, exemptions and HMRC payroll rules. For an exact employee calculation, use HMRC's official National Insurance calculator.