Assumptions: 2025/26-style thresholds, standard personal allowance, employee Class 1 NI, and salary sacrifice pension treatment. This is an estimate only (not financial advice).
How this UK income tax calculator works
This calculator gives you a fast estimate of your annual and monthly take-home pay in the UK. It includes the core deductions that matter most for most employees:
- Income Tax (England/Wales/Northern Ireland rates, or Scottish rates)
- Employee National Insurance contributions
- Student loan deductions (Plan 1, Plan 2, Plan 4, Plan 5)
- Optional postgraduate loan deductions
- Pension contribution entered as salary sacrifice percentage
If you are employed and want a practical estimate of “what lands in my bank account,” this tool is built for exactly that.
2025/26 assumptions used in the calculator
Personal allowance and taper
The standard personal allowance is assumed to be £12,570. Once adjusted income is above £100,000, the allowance is reduced by £1 for every £2 above that threshold, tapering down to zero.
Income tax bands (England, Wales, Northern Ireland)
| Band | Taxable range | Rate |
|---|---|---|
| Basic rate | First £37,700 of taxable income | 20% |
| Higher rate | Next £74,870 of taxable income | 40% |
| Additional rate | Remaining taxable income | 45% |
Income tax bands (Scotland)
| Band | Taxable amount (after allowance) | Rate |
|---|---|---|
| Starter | £2,306 | 19% |
| Basic | £11,685 | 20% |
| Intermediate | £17,101 | 21% |
| Higher | £31,338 | 42% |
| Advanced | £50,140 | 45% |
| Top | Above that | 48% |
National Insurance (employee)
NI is estimated with a primary threshold of £12,570, main rate at 8% up to £50,270, and 2% above that.
Why your result might differ from your payslip
Real payroll can include details that quick calculators do not model perfectly. For example:
- Tax code adjustments (benefits, underpayments, company car, marriage allowance, etc.)
- Salary not paid evenly each month
- Non-salary pension methods (e.g., relief at source rather than salary sacrifice)
- Benefits-in-kind and taxable expenses
- Director NI method or other specialist payroll treatment
So think of this as a high-quality estimate tool, not a replacement for your official payroll calculation.
How to use this calculator effectively
1) Start with true annual gross pay
Include your contractual salary and expected annual bonus in the two pay fields. If your bonus is uncertain, run multiple scenarios to see a low/medium/high range.
2) Match your pension setup
This calculator treats pension as salary sacrifice percentage, which reduces taxable and NI-able earnings before deductions are applied.
3) Pick the right student loan plan
Choosing the wrong plan can significantly over- or under-estimate your deductions. If unsure, check your HMRC or Student Loans Company records.
Simple ways people reduce tax legally
- Increase pension contributions (especially near higher-rate thresholds)
- Use salary sacrifice options where offered by your employer
- Check your tax code regularly for errors
- Claim allowable expenses/reliefs when eligible
- Use ISA allowances to protect savings growth from future tax
FAQ
Does this include Council Tax?
No. Council Tax, rent, utilities, and other household costs are not payroll deductions and are not included.
Is this suitable for self-employed income?
Not directly. Self-employed tax includes different rules, allowable business expenses, Class 2/4 NI, and annual self-assessment treatment.
Can I use this to compare job offers?
Yes. It is very useful for comparing offers by net pay, especially when pension, bonus, and student loans differ between options.
Final note
Use this UK income tax calculator as a practical planning tool. For major financial decisions, combine this estimate with your official payslip, P60, and guidance from HMRC or a qualified adviser.