Example
Pay rise from GBP 50,000 to GBP 55,000
A worked example showing how a raise lands when it crosses the higher-rate tax threshold.
Scenario
A move from £50,000 to £55,000 crosses the higher-rate threshold at £50,270. This is the most important pay-rise scenario to understand because it is the point where the marginal deduction rate jumps sharply. The effective take on each extra pound of salary drops from 72p to 58p once the threshold is cleared. This page shows exactly how the two-rate split works.
Take-home pay at £50,000
At £50,000, taxable income is £50,000 minus £12,570 = £37,430. All of this sits within the basic-rate band (which extends to £37,700 of taxable income, i.e. gross £50,270).
| Deduction | Calculation | Annual amount | |---|---|---| | Income tax | £37,430 × 20% | £7,486 | | Employee NI | £37,430 × 8% | £2,994 | | Total deductions | | £10,480 | | Annual take-home | £50,000 − £10,480 | £39,520 | | Monthly take-home | £39,520 ÷ 12 | £3,293 |
Take-home pay at £55,000
The higher-rate threshold is £50,270. At £55,000, the first £50,270 is taxed under the standard bands; the remaining £4,730 is taxed at higher rate. Employee NI also changes: it drops from 8% to 2% above £50,270.
Basic-rate portion (up to £50,270): - Income tax on taxable income up to £37,700: £37,700 × 20% = £7,540 - NI on earnings from £12,570 to £50,270: £37,700 × 8% = £3,016
Higher-rate portion (£50,271 to £55,000 = £4,730): - Income tax: £4,730 × 40% = £1,892 - Employee NI: £4,730 × 2% = £95
| Band | Income tax | Employee NI | |---|---|---| | Basic rate (to £50,270) | £7,540 | £3,016 | | Higher rate (£50,271–£55,000) | £1,892 | £95 | | Total | £9,432 | £3,111 |
| | Amount | |---|---| | Total deductions | £12,543 | | Annual take-home | £42,457 | | Monthly take-home | £3,538 |
The gain from the raise
| | Before (£50k) | After (£55k) | Increase | |---|---|---|---| | Annual take-home | £39,520 | £42,457 | £2,937 | | Monthly take-home | £3,293 | £3,538 | £245 |
The £5,000 gross raise delivers only £2,937 net per year, or £245 per month. You keep 58.7% of the raise — not the 72% that applies to raises entirely within the basic-rate band.
Why the rate drops: the threshold crossing explained
The £5,000 raise is not all taxed at the same rate. It splits across the threshold:
| Slice of the raise | Amount | Marginal rate (tax + NI) | You keep | |---|---|---|---| | First £270 (fills basic-rate band) | £270 | 28% (20% + 8%) | £194 | | Remaining £4,730 (higher rate) | £4,730 | 42% (40% + 2%) | £2,743 | | Total raise | £5,000 | | £2,937 |
The NI rate actually drops at the higher-rate threshold (from 8% to 2%), but the 20-point jump in income tax more than offsets that. The result is that each pound above £50,270 costs you 42p rather than 28p.
Comparing this raise to one that stays in the basic-rate band
| Raise | Gross increase | Net increase | You keep | |---|---|---|---| | £40k to £45k | £5,000 | £3,600 | 72% | | £45k to £50k | £5,000 | £3,600 | 72% | | £50k to £55k | £5,000 | £2,937 | 58.7% |
The £663 difference between keeping 72% and keeping 58.7% is entirely the consequence of the threshold crossing. The raise is still worthwhile — £245/month extra take-home is meaningful — but the gross and net figures are further apart than at any previous step on this salary ladder.
What this means in practice
If you are negotiating a raise that will push you above £50,270, the gross number is a worse guide to your actual gain than it is at lower salaries. A useful framing is: you are keeping roughly £3,000 net out of a £5,000 gross raise rather than the £3,600 you would have received if the same raise had happened a year earlier on a lower base.
Best next step
Use the pay rise calculator with your own salary figures, then read Why a pay rise can feel smaller than expected for the full explanation of how threshold crossings work across different salary levels.
Try the calculators
Run your own numbers through the calculators that connect to this content.
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How to use PayPath here
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