Our Employer NI Calculator makes it easy for UK businesses to calculate their National Insurance contributions (NICs) for employees. Enter the employee’s gross earnings, select a pay period (weekly or monthly), choose the relevant tax year, and get an instant breakdown of the employer’s NI due. The tool automatically applies the correct National Insurance rate and secondary threshold to ensure your calculations are accurate and up to date.
This employer NIC calculator is designed for simplicity, whether running payroll in-house or verifying figures produced by your payroll software. It supports special employee categories (such as under 21s, apprentices under 25, and veterans), and is a handy resource when budgeting staff costs. Whether you’re a small business owner, accountant, or HR professional, our calculator helps streamline the process of calculating employer’s NI contributions.
Employer NI Calculator 2025/26
Calculation Results:
Earnings: £0.00
Employer's NI: £0.00
Rates and Thresholds:
Additional Resources
If you need more information about how employer National Insurance is calculated, check out our in-depth guide.