Free One Tax Tool UK for 2025–2026. Estimates are for guidance only and not financial advice—please consult a professional.

UK Income Tax Calculator

Your Tax Calculation Summary

Description Yearly Monthly Weekly
Gross Salary
Personal Allowance
Taxable Salary
Your Pension Contribution
20% rate
40% rate
45% rate
Income Tax
National Insurance
Total Deductions (ex Pension)
Net Salary (inc Pension)

Your 2025–2026 UK Guide to Income Tax, National Insurance & Pension Contributions

Curious about how much tax you'll pay in the UK for the 2025–2026 tax year? Whether you're budgeting monthly take-home pay or looking to understand how deductions work, this simple guide covers income tax bands, National Insurance rates, and pension limits — all explained clearly.

Tax Bands & Thresholds (2025–2026)
Type Threshold Rate
Personal Allowance Up to £12,570 0%
Basic Rate £12,571 – £50,270 20%
Higher Rate £50,271 – £125,140 40%
Additional Rate Above £125,140 45%
National Insurance (Main) £12,570 – £50,270 8%
National Insurance (Upper) Above £50,270 2%
Pension Contribution Up to £60,000 Voluntary
How Are Deductions Calculated?
  • Income Tax is calculated after subtracting both your pension contributions and your personal allowance. For example, if you earn £45,000 and contribute £3,000 to your pension, your adjusted income becomes £42,000. Then, you subtract the £12,570 personal allowance — meaning only £29,430 is taxable income.
  • National Insurance (NI) applies on earnings above the primary threshold (£12,570). The first slice is taxed at 8%, and earnings above £50,270 are taxed at 2%.
  • Pension Contributions reduce your taxable income but must not exceed £60,000 or your gross salary, whichever is lower.
Earning Over £100,000?

If your adjusted net income exceeds £100,000, your personal allowance reduces by £1 for every £2 earned over that threshold.

This means your tax-free allowance becomes zero if you earn £125,140 or more.

This creates an effective tax rate of over 60% on income between £100,000 and £125,140.
High Income Child Benefit Charge

Starting from April 2024, if your income is over £60,000, you may have to repay part or all of your Child Benefit via the High Income Child Benefit Charge (HICBC).

For previous years (2023–2024 and earlier), the threshold was £50,000.


Our calculator automatically accounts for this.

Our calculator above incorporates all these rules and instantly gives you your annual, monthly, and weekly take-home pay after tax, NI, and pension deductions.

Data reflects HMRC updates for the 2025–2026 tax year. This content is for general guidance only.