National Insurance Calculator
Our National Insurance calculator works out NI for 2026/27. Employee Class 1 NI: 8% on earnings £12,570-£50,270 and 2% above. Self-employed: Class 4 NI at 6%/2% plus flat-rate Class 2 (£3.45/week).
National Insurance Calculator
Calculate your National Insurance contributions for 2026/27. Class 1 (employed) and Class 4 (self-employed).
Enter gross annual earnings and select employed or self-employed. Employees pay Class 1 NI: 8% on earnings between the Primary Threshold (£12,570) and Upper Earnings Limit (£50,270), then 2% above. Self-employed workers pay Class 4 at 6% between the Lower Profits Limit and UEL, plus 2% above — Class 2 contributions are now handled within Self Assessment. For multiple jobs, calculate each separately — NI does not combine across employers, and each job has its own Primary Threshold. The results show both employee and employer NI, which is useful for calculating total employment cost. Note that benefits in kind attract Class 1A employer NI at 15%, which is shown separately.