UK salary tax calculator

💷 Core Tax Calculations

  • Tax Year 2025-26 calculations (6 April 2025 - 5 April 2026)
  • Official HMRC rates based on government-approved tax rates
  • One-click calculation for instant tax breakdown
  • Personal Allowance: £12,570 tax-free threshold
  • Income Tax bands: Basic (20%), Higher (40%), Additional (45%)
  • Automatic tax bracket calculations based on income level
  • Employee NI contributions: 8% (up to £50,270), 2% (above £50,270)
  • Employer NI contributions: 15% (above £5,000)
  • Accurate NI thresholds based on official rates
  • Pension auto-enrolment calculations included
  • Compliant with UK workplace pension regulations

 

📊 Salary Input Options

  • Dual period selection: toggle between Annual and Monthly views
  • Gross Annual Salary input field with £ currency formatting
  • Flexible salary entry: accepts any salary amount
  • Example pre-populated (£35,000) for quick testing

 

🏛️ HMRC Compliance

  • HMRC-compliant calculations following official tax rules
  • 2025-26 tax year specific, with up-to-date rates
  • Geographic Coverage for England, Wales, and Northern Ireland rates
  • Disclaimer: consult professionals for precise advice
  • Informational purposes statement for legal coverage

 

📱 User Interface

  • Clean, modern design for easy navigation
  • Light/dark mode toggle (sun/moon icon)
  • Responsive layout for desktop, tablet, and mobile
  • Clear typography with easy-to-read fonts
  • Prominent "Calculate Tax Breakdown" button
  • £ symbol integration for native UK currency display

 

📈 Detailed Breakdown

  • Income Tax: total annual/monthly deductions
  • National Insurance: employee NI contributions
  • Pension contributions: workplace pension deductions
  • Net take-home pay: final salary after all deductions
  • Annual and Monthly views for all figures
  • Official Rate Information Display: transparent rate section
  • Lists all current thresholds and percentages for easy reference

 

🔗 Official Resources

  • Direct link to GOV.UK Income Tax Rates
  • HMRC official National Insurance Rates
  • Government pension information on Auto-Enrolment
  • Quick access to authoritative sources for verification

 

✅ Additional Features

  • Pre-populated example (£35,000 salary)
  • Instant recalculation updates automatically
  • No registration required; anonymous and free-to-use
  • Fast loading, lightweight, and efficient
  • Educational Value: shows how taxes are calculated
  • All-in-one tool for income tax, NI, and pension
  • Comparative analysis: annual vs monthly view for planning

This calculator provides a comprehensive, user-friendly solution for UK employees and employers to understand salary deductions and take-home pay based on current 2025-26 tax rates.