Income tax calculator UK 2026/27
Your income tax
£5,486.00
That is £457.17 a month. Overall you pay 13.7% of your salary in income tax, and the next £1 you earn is taxed at 20%.
National Insurance is separate: £2,194.40 a year. See your take-home pay →
Your tax, band by band
| Band | Rate | Income in band | Tax |
|---|---|---|---|
| Personal allowance | 0% | £12,570.00 | £0.00 |
| Basic rate | 20% | £27,430.00 | £5,486.00 |
| Higher rate | 40% | £0.00 | £0.00 |
| Additional rate | 45% | £0.00 | £0.00 |
| Total | £40,000.00 | £5,486.00 |
Where you sit in the tax bands
you · £40,000
0%
20%
40%
45%
£10,270 more and you reach the 40% higher rate, which starts at £50,270.
Rates for 2026/27 (England, Wales, NI)
| Personal allowance | £0 to £12,570 | 0% |
| Basic rate | £12,571 to £50,270 | 20% |
| Higher rate | £50,271 to £125,140 | 40% |
| Additional rate | over £125,140 | 45% |
| Employee NI | £12,570 to £50,270 / above | 8% / 2% |
| Employer NI | over £5,000 | 15% |
Quick answers
How much income tax do I pay on £40,000?
£5,486 a year in England, Wales and Northern Ireland: nothing on the first £12,570, then 20% on the next £27,430.
What is the personal allowance for 2026/27?
£12,570. It shrinks by £1 for every £2 you earn over £100,000 and is gone at £125,140.
Is National Insurance part of income tax?
No. It is a separate deduction: 8% of your pay between £12,570 and £50,270, and 2% above that. The take-home pay calculator shows both.
Sources: GOV.UK income tax rates; HMRC rates and thresholds for employers 2026 to 2027. Checked 31 Oct 2026.