Answers · UK 2025/26
How much extra take-home pay do I get from a 5% pay rise on GBP 35,000?
A 5% rise on GBP 35,000 is GBP 1,750 gross, taking you to GBP 36,750. Because it falls in the basic-rate band you lose 20% Income Tax plus 8% National Insurance - 28% in total - so you keep about GBP 1,260, roughly GBP 105 a month more in your pocket.
Full answer
On a basic-rate salary the marginal deduction in 2026/27 is 20% Income Tax plus 8% Class 1 National Insurance = 28%, so you keep 72p of every extra pound. A 5% rise on GBP 35,000 adds GBP 1,750 gross (new salary GBP 36,750). Tax on the rise: GBP 1,750 x 20% = GBP 350. NI on the rise: GBP 1,750 x 8% = GBP 140. Net gain GBP 1,260 a year, about GBP 105 a month. Whole-salary check: at GBP 36,750 the taxable amount is GBP 36,750 - GBP 12,570 = GBP 24,180 at 20% = GBP 4,836 Income Tax; NI is (GBP 36,750 - GBP 12,570) x 8% = GBP 1,934.40; take-home about GBP 29,979.60. The headline lesson: a pay rise is never taxed away entirely - on the basic rate you keep nearly three-quarters of it. The picture only worsens if the rise pushes part of your income above GBP 50,270 (where the next slice is taxed at 40% + 2% NI = 42% marginal) or into the GBP 100,000-GBP 125,140 zone where the 60% trap applies as the Personal Allowance tapers GBP 1 for every GBP 2. A student loan would add 9% above its threshold, cutting the kept amount further. Compare before-and-after figures with the Take-Home Pay calculator, and see the official bands at gov.uk/income-tax-rates.
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This answer is informational only and does not constitute financial, tax or legal advice. Figures are for the 2025/26 UK tax year. See our methodology and sources.