£90,000 vs £100,000 — How Much of the Raise Do You Keep?

2025/26 · UK · After Income Tax and National Insurance

+£5,800 net / year
You keep 58% of the £10,000 gross raise  ·  +£483/month
+£10,000
Gross raise
+£5,800
Net raise
58%
Of raise kept
42.0%
Marginal rate

Going from £90,000 to £100,000 looks like a £10,000 bump, yet in the UK the extra take-home pay is closer to £5,800 once tax and deductions come out — about 58% of every extra pound (or dollar) of the raise.

Below is a side-by-side comparison of your take-home pay on £90,000 versus £100,000 in the UK, using the same 2025/26 tax year logic as our UK Salary Calculator. Every figure is calculated for a standard employee with the full personal allowance.

£90,000 vs £100,000 — Side by Side

 £90,000£100,000Change
Gross salary£90,000£100,000+£10,000
Net (take-home) pay£62,757£68,557+£5,800
Monthly take-home£5,230£5,713+£483
Effective tax rate30.3%31.4%+1.2%
💡 Marginal rate on this raise: about 42.0%. Heads-up: this raise crosses the £100k personal-allowance taper (60% effective marginal rate). That is why the marginal rate on the top of the raise is higher than your overall effective rate, and why you keep 58% of the £10,000 rather than all of it.

See the full breakdown for each salary

Want every line of tax and deductions? View the dedicated take-home pages:

£90,000 after tax £100,000 after tax All UK salaries All raise comparisons

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← £80,000 vs £90,000£100,000 vs £110,000 →

Frequently asked questions

How much of a raise from £90,000 to £100,000 do I actually keep in the UK?

A £10,000 gross raise from £90,000 to £100,000 adds about £5,800 to your annual take-home pay in the UK for the 2025/26 tax year — roughly 58% of the raise, after Income Tax and National Insurance.

What is the marginal tax rate on this raise?

Across the £90,000 to £100,000 slice, the effective marginal deduction rate is about 42.0%. That means for every extra £100 of gross pay in this band you keep roughly £58 after Income Tax and National Insurance.

How much more will I take home each month?

Your monthly take-home pay rises from about £5,230 at £90,000 to £5,713 at £100,000 — an extra £483 a month in the UK for the 2025/26 tax year.

About this comparison

Figures use the 2025/26 tax year and the same logic as our UK Salary Calculator: the £12,570 personal allowance (tapered above £100,000), Income Tax at 20% / 40% / 45% and Class 1 National Insurance at 8% then 2%. The "net raise" is simply the take-home pay at £100,000 minus the take-home pay at £90,000. These are estimates for the 2025/26 tax year and are not personal tax advice. Compare take-home pay across countries on our take-home pay by country page.