UK Income Tax Calculator 2024-25
Calculate your UK income tax and take-home pay for 2024/25. Covers England, Wales, NI, and Scottish income tax bands including the personal allowance taper.
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How to use this calculator
- 1
Enter your total annual gross income before any deductions.
- 2
Select whether you are taxed under Scottish income tax or England/Wales/NI rules — Scotland has six bands with different rates.
- 3
If you make pension contributions, enter the annual amount; the tool deducts it from the income used for tax and for the allowance taper, and from take-home pay.
- 4
The calculator applies the 2024/25 personal allowance (£12,570) and tapers it for incomes above £100,000 — your allowance reduces by £1 for every £2 over £100,000.
- 5
National Insurance (Class 1 employee rates) is calculated automatically alongside income tax.
Frequently asked questions
What method does this tool use?
It subtracts any pension contribution from gross income, works out the personal allowance (reduced above £100,000), applies progressive bands to what is left, and adds employee National Insurance on gross. Take-home is gross minus income tax, National Insurance and the pension contribution. The effective rate shown is income tax divided by gross, and does not include National Insurance.
Which tax year and figures does it carry?
The label is 2024/25. For England, Wales and Northern Ireland the tool uses a £12,570 allowance, 20% on the first £37,700 of taxable income, 40% up to £125,140 and 45% above. For Scotland it uses six bands at 19%, 20%, 21%, 42%, 45% and 48%. These are the figures built into this tool. UK rates and thresholds change at least every tax year on 6 April, the tables are not updated automatically, and HMRC or a qualified adviser governs what applies to you.
How does the personal allowance taper work here?
Above £100,000 of income after pension, the allowance falls by £1 for each £2 (rounded down), reaching nil at £125,140. At £110,000 the tool shows an allowance of £7,570; at £120,000 it is £2,570; from £125,140 it is £0. The 45% (or Scottish 48%) rate then applies to taxable income above £125,140.
How are Scottish bands handled?
Choose Scotland and the tool applies bands whose cumulative limits above the allowance are £2,306, £13,991, £31,092, £62,430 and £125,140. Rates are 19%, 20%, 21%, 42%, 45% and 48%. National Insurance is the same in both regions in the tool. Wales and Northern Ireland use the same bands as England in this tool.
How are pension contributions treated?
The amount is subtracted from gross for income tax and for the allowance taper, and it is also subtracted from take-home as cash that has left your pay. National Insurance is still calculated on the full gross amount. The tool assumes the amount you type is the full contribution and does not model basic-rate relief at source or how a scheme collects it.
How is National Insurance calculated?
The tool uses annual Class 1 employee thresholds: 8% on gross between £12,570 and £50,270, and 2% above, with nothing below £12,570. Real payroll applies thresholds per pay period, so the annual figure can differ slightly from a payslip.
What is not included?
Student and postgraduate loans, tax codes, benefits in kind, savings and dividend income, the marriage allowance, Gift Aid, the High Income Child Benefit Charge, and any income other than the single gross figure you type. Welsh-specific rates, if they differ in the year you are looking at, are not modelled.
What happens with unusual inputs?
A negative income is treated as zero. A pension contribution larger than gross is capped at gross. Income at or below the allowance shows £0 tax and £0 National Insurance, with take-home equal to gross less any pension.
UK income tax and take-home pay: how this calculator builds the figure
From gross income to take-home
The calculation runs in four steps. The pension contribution is taken off gross income to give the figure used for tax. The personal allowance of £12,570 is reduced by £1 for every £2 above £100,000 of that figure. The rest is taxed in bands: 20% on the first £37,700, 40% up to £125,140 and 45% above for England, Wales and Northern Ireland, or Scotland’s six bands from 19% to 48%. Employee National Insurance of 8% between £12,570 and £50,270 and 2% above is added, using gross pay. All figures are the 2024/25 ones built into this tool.
Worked example: £50,000 with and without a pension contribution
A £50,000 salary in England has income tax of £7,486 and National Insurance of £2,994, leaving take-home of £39,520. Entering a £5,000 pension contribution lowers taxable income to £45,000 and tax to £6,486; National Insurance stays at £2,994 because the tool calculates it on gross, and the £5,000 is deducted from take-home, which becomes £35,520.
Worked example: £60,000 in England and in Scotland
On £60,000 the England result is £11,432 of income tax, £3,211 of National Insurance and take-home of £45,357. Switching the region to Scotland gives £13,228 of income tax across the starter, basic, intermediate and higher bands, the same National Insurance and take-home of £43,561. The difference of £1,796 comes entirely from the Scottish bands.
Where the allowance is lost
The table runs England at six incomes and shows the allowance disappearing between £100,000 and £130,000. The allowance column drops to £2,570 at £120,000 and £0 at £130,000, which is also where the effective income tax rate climbs fastest.
| Gross income | Personal allowance | Income tax | National Insurance | Take-home | Effective income tax rate |
|---|---|---|---|---|---|
| £30,000 | £12,570 | £3,486 | £1,394 | £25,120 | 11.6% |
| £50,000 | £12,570 | £7,486 | £2,994 | £39,520 | 15.0% |
| £100,000 | £12,570 | £27,432 | £4,011 | £68,557 | 27.4% |
| £120,000 | £2,570 | £39,432 | £4,411 | £76,157 | 32.9% |
| £130,000 | £0 | £44,703 | £4,611 | £80,686 | 34.4% |
Pension contributions and the taper in the tool
Because the pension contribution reduces the income used for the taper, a £10,000 contribution on £110,000 lifts the allowance from £7,570 back to £12,570 and income tax from £33,432 to £27,432, while National Insurance stays at £4,211 and the £10,000 comes off take-home (£68,357 against £72,357). The tool shows this mechanism only; it does not model scheme types, relief at source, or annual limits. As UK thresholds change every 6 April and this tool is not updated automatically, HMRC governs the figures for your year.
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Results are estimates for informational purposes only and do not constitute professional financial, medical, legal, or technical advice. Read full disclaimer →