UK Income Tax Calculator
Estimate your annual and monthly take-home pay for the UK. This calculator uses common PAYE assumptions for the 2025/26 tax year and includes Income Tax, National Insurance, and student loan deductions.
How much tax will I pay in the UK?
The amount of tax you pay in the UK depends on your taxable income, where you live in the UK (Scotland has different income tax bands), and deductions like pension contributions and student loan repayments. The calculator above gives you a practical estimate so you can quickly answer questions like:
- What will my monthly take-home pay be?
- How much Income Tax and National Insurance will I pay?
- How does a pension contribution affect my net pay?
- How much are my student loan deductions likely to be?
What this UK tax calculator includes
This calculator is designed for employed people paid through PAYE and includes:
- Income Tax (rest of UK bands or Scottish bands)
- Personal Allowance tapering for higher incomes above £100,000
- Employee National Insurance (Class 1 primary contributions)
- Student loan deductions based on the selected plan
- Pension and other pre-tax deductions to estimate adjusted taxable pay
Quick guide: how UK tax is calculated
1) Start with gross salary
Your gross salary is your total yearly pay before deductions. If you salary-sacrifice into your pension, or have other pre-tax deductions, your taxable pay is lower.
2) Work out personal allowance
Most people get a personal allowance (normally £12,570). If income is above £100,000, this allowance is reduced by £1 for every £2 over the threshold, and can fall to zero.
3) Apply income tax bands
Income above your personal allowance is taxed in bands. For England, Wales, and Northern Ireland this generally means 20%, 40%, and 45% bands. Scotland has additional bands (19%, 20%, 21%, 42%, 45%, 48%).
4) Add National Insurance
Employee NI is charged separately from income tax. For most employees, NI starts above the primary threshold and uses a main rate up to the upper earnings limit, then a lower rate above that.
5) Subtract student loan repayments (if applicable)
Student loan deductions are calculated as a percentage of earnings above your plan threshold. Postgraduate loans can apply in addition to an undergraduate plan.
Why estimates can differ from your payslip
This tool gives a reliable estimate, but payroll software may produce slightly different results because of pay frequency, exact HMRC rounding rules, tax code adjustments, benefits in kind, and irregular pay periods (bonuses, overtime, or unpaid leave).
Ways to legally reduce your tax bill
- Increase pension contributions: can reduce taxable income and improve long-term wealth.
- Check your tax code: incorrect tax codes can cause overpayment.
- Use salary sacrifice schemes: where available, these can reduce tax and NI.
- Claim allowable expenses/reliefs: for eligible work costs and professional subscriptions.
- Review student loan plan data: ensure payroll has the correct plan type.
Frequently asked questions
Is this a monthly tax calculator UK tool?
Yes. You enter annual pay, and the calculator shows both annual and monthly take-home pay.
Does this include council tax?
No. Council tax is a household/local authority charge and is not part of PAYE income deductions.
Does this work for self-employed income?
Not exactly. Self-employed people usually pay via Self Assessment and also face Class 2/Class 4 National Insurance rules. Use a dedicated self-employed tax calculator for best accuracy.
Can I use this for Scotland?
Yes, choose Scotland in the tax region dropdown to apply Scottish income tax bands.
Final thoughts
If you are wondering “how much tax will I pay in the UK?”, start with this calculator for a fast, clear estimate. It is especially useful for job offers, salary negotiations, pension planning, and budgeting your monthly cash flow.