HMRC NI Rates 20268% Class 1 Rate£12,570 Primary Threshold
National Insurance Contributions (NI) Calculator 2026
Calculate your National Insurance contributions for employees (Class 1 8% main rate) and self-employed sole traders (Class 4 6% rate) under HMRC tax bands.
National Insurance Contribution Calculator
Compute monthly & annual NI deductions based on employment status
£
NI Deduction Result:
Monthly NI Deduction
£216/mo
Main Rate 8%Annual NI Total
£2594
Threshold £12,570