Estimate UK income tax and National Insurance
Estimate Income Tax and Class 1 National Insurance on a UK salary, including the Personal Allowance taper.
Uses 2024/25 Income Tax bands, Personal Allowance taper, and Class 1 employee National Insurance rates. An estimate only, not tax advice.
Total salary before any deductions.
Personal Allowance, Income Tax, and National Insurance are all calculated automatically.
Your estimated annual take-home, with the full deduction breakdown underneath.
Frequently asked
What is the Personal Allowance taper?
For income above £100,000, the tax-free Personal Allowance reduces by £1 for every £2 earned above that threshold, reaching £0 once income hits £125,140. This calculator applies that automatically.
Does this include National Insurance?
Yes. Class 1 employee National Insurance is calculated alongside Income Tax, using 2024/25 thresholds and rates.
Does this cover Scottish Income Tax rates?
No. This uses the rates and bands that apply to the rest of the UK (England, Wales, and Northern Ireland). Scotland sets its own Income Tax bands, which differ.
Is this tax advice?
No. It's an estimate using 2024/25 figures, for planning purposes only.