Annual NI
GBP393
Monthly NI
GBP33
Weekly NI
GBP8
Effective NI Rate
2.2%
National Insurance Calculator — Annual Salary ₹17,500
With annual salary of ₹17,500, the annual ni is GBP393.
Gross annual salary
Annual NI
GBP1,793
Monthly NI
GBP149
Weekly NI
GBP34
Effective NI Rate
5.1%
What is the National Insurance Calculator?
UK employees pay Class 1 National Insurance contributions on earnings above the Primary Threshold (£242/week in 2025-26). The main rate is 8% on earnings between the Primary Threshold and Upper Earnings Limit (£967/week), and 2% on earnings above the UEL.
Formula
NI = 8% × (min(weekly pay, £967) − £242) + 2% × max(weekly pay − £967, 0). Multiply by 52 for annual.- 242
- = Primary Threshold per week (2025-26)
- 967
- = Upper Earnings Limit per week
- W
- = Weekly gross pay
How to use the National Insurance Calculator
- 1
Step 1
Enter your annual salary
- 2
Step 2
See your NI broken down by week, month, and year
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Frequently asked questions
What is the NI rate for employees in 2025-26?
8% on weekly earnings between £242 and £967 (main rate), and 2% on weekly earnings above £967 (upper rate). The main rate was reduced from 10% to 8% in April 2024.
Do I pay NI on my entire salary?
No. You only pay NI on earnings above the Primary Threshold (£12,570/year). Earnings below this are NI-free.
What is the difference between income tax and NI?
Income tax is a general tax on earnings above the personal allowance. National Insurance is a separate contribution that funds the state pension, NHS, and unemployment benefits. Both are deducted from your payslip via PAYE.
Sources
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