UK Tax Bracket Calculator (2025/26 assumptions)
Estimate income tax, National Insurance, and take-home pay using current UK tax band assumptions.
How this UK tax bracket calculator works
This UK tax bracket calculator gives you a fast estimate of how much income tax you may pay across each tax band, and how much take-home pay you may keep after deductions. It is designed for employees and uses standard personal allowance logic, including the personal allowance taper for higher earners.
Unlike a basic take-home pay estimate, this tool also shows the tax breakdown by band so you can see exactly where your income is taxed at 20%, 40%, 45% (or Scottish rates if you select Scotland).
What the calculator includes
- Personal Allowance reduction above £100,000 adjusted income.
- Income tax bands for England/Wales/Northern Ireland.
- Scottish income tax bands and rates when Scotland is selected.
- Employee Class 1 National Insurance estimate (optional toggle).
- Annual and monthly net income estimate.
What it does not include
- Student loan repayments.
- Dividend tax or capital gains tax.
- Marriage allowance transfers or blind person’s allowance.
- Company benefits in kind and complex tax code adjustments.
Income tax bands used in this calculator
England, Wales, and Northern Ireland
The calculator uses the standard structure:
- Personal Allowance: £12,570 (tapered above £100,000).
- Basic rate: 20% on taxable income up to £37,700.
- Higher rate: 40% on the next £74,870.
- Additional rate: 45% on taxable income above that.
Scotland
Scottish rates are more granular and include starter, basic, intermediate, higher, advanced, and top rates. This is why two people with the same salary can pay different income tax depending on their UK tax region.
Personal allowance taper explained simply
For adjusted net income above £100,000, your personal allowance is reduced by £1 for every £2 over the threshold. At £125,140, your personal allowance is fully removed.
This creates a well-known high effective tax zone for many earners between £100,000 and £125,140. Salary sacrifice pension contributions can help reduce adjusted income and may restore some personal allowance.
How to use the calculator effectively
Step-by-step
- Enter your gross annual employment income.
- Add annual pre-tax pension or salary sacrifice contributions.
- Add other taxable income if relevant.
- Choose your tax region.
- Click calculate to view your tax band breakdown and net pay.
Planning ideas
If your income is near a tax threshold, even small pension increases can change your tax outcome. Use this calculator to model scenarios quickly, especially if you are considering bonus sacrifice, extra pension funding, or role changes with different salary levels.
Common questions
Does pension reduce income tax?
In many cases, yes. Pre-tax pension contributions and salary sacrifice can reduce taxable pay, which can lower income tax and National Insurance.
Why include other taxable income?
Because interest, property income, or side income can push you into a higher bracket and reduce your personal allowance at higher earnings.
Is this an official HMRC calculator?
No. This is an educational estimate tool to help with planning. Always confirm with HMRC tools or a qualified adviser for final decisions.
Final thoughts
A good UK income tax calculator should do more than output one number. It should show your tax bracket breakdown clearly so you can make better decisions. Use the breakdown above to understand your current position and test how salary changes, pension contributions, and location affect your take-home pay.