Salary After Tax UK – Detailed Tax Breakdown

Understanding how your salary is taxed in the UK helps you plan your finances and compare job offers. This guide explains Income Tax, National Insurance, and how they combine to determine your take-home pay.

How Salary After Tax Is Calculated

Your salary after tax (also called take-home pay or net salary) is calculated by subtracting deductions from your gross salary:

Take-Home Pay = Gross Salary - Income Tax - National Insurance - Pension - Student Loan

Use our take-home pay calculator to see the exact breakdown for your salary.

Income Tax on Salary

Income Tax is calculated on your taxable income (salary minus your Personal Allowance). For 2025/26:

  • Personal Allowance: £12,570 (tax-free)
  • Basic Rate (20%): Earnings between £12,570 and £50,270
  • Higher Rate (40%): Earnings between £50,270 and £125,140
  • Additional Rate (45%): Earnings above £125,140

Learn more about UK tax bands and how they work.

National Insurance on Salary

National Insurance (NI) is calculated separately from Income Tax. For 2025/26:

  • Primary Threshold: £12,570 (no NI below this)
  • 8% rate: Earnings between £12,570 and £50,270
  • 2% rate: Earnings above £50,270

Unlike Income Tax, NI is calculated on your gross salary before pension contributions (unless you use salary sacrifice).

Combined Tax Impact

For most salaries, you pay both Income Tax and National Insurance. The combined effective rate varies by income level:

  • £20,000 salary: ~18% combined (tax + NI)
  • £30,000 salary: ~20% combined
  • £40,000 salary: ~22% combined
  • £50,000 salary: ~24% combined

See take-home pay examples for detailed breakdowns.