National Insurance calculator
Work out employee NI for your chosen tax year. For years when rates changed partway through, the calculator averages those changes across steady earnings.
Enter your details
Your calculation
Annual gross £45,000.00 · annual take-home £35,919.60
Monthly view · updates as you change your details
- Take-home pay£2,993.30
- Income Tax£540.50
- National Insurance£216.20
- Pension£0.00
- Student loans£0.00
- Other sacrifice£0.00
| Component | Base pay | Selected calculation |
|---|---|---|
| Gross income | £45,000.00 | £45,000.00 |
| Income Tax | -£6,486.00 | -£6,486.00 |
| National Insurance | -£2,594.40 | -£2,594.40 |
| Pension contribution | £0.00 | £0.00 |
| Student loans | £0.00 | £0.00 |
| Other salary sacrifice | £0.00 | £0.00 |
| Take-home pay | £35,919.60 | £35,919.60 |
How to use this result
This is employee NI, worked out separately from employer NI and Income Tax. The calculator uses category A unless you select an exemption. It does not cover other categories, director-specific rules or contracted-out rebates.
Source: Read the official guidance. Checked 23 October 2026. Estimates are not personalised advice.
Useful tools and help
See the Income Tax and NI tools.
To see how much of your salary you could receive, work out your pay after deductions. The estimate uses the standard tax allowance. Your tax code and earlier pay can make your payslip different.