Our Employee National Insurance Calculator helps you estimate how much NI you’ll pay based on your earnings and pay frequency. Whether paid weekly or monthly, this tool shows your expected NI contributions.
To use the calculator, enter your earnings, select the tax year, and choose your pay period. You’ll then see a clear breakdown of your NI contribution, including the applicable thresholds and rates. This tool is perfect for employees who want to understand how NI affects their take-home pay.
Employee NI Calculator 2025/26
Additional Resources
National Insurance is just one part of your payslip deductions. Income Tax is another significant deduction you should be aware of.
To help you better understand how your deductions are calculated, we’ve put together several helpful guides:
- Understanding UK Income Tax: Thresholds, Bands, and Allowances Explained
- Understanding National Insurance Contributions for Employees: A Comprehensive Overview
For a complete picture of your take-home pay, we recommend checking out our full salary calculator, which combines Income Tax and National Insurance in one easy-to-use tool.