The UK 60% Tax Trap Explained
If your annual earnings fall between £100,000 and £125,140, you face an effective income tax rate of 60% on that slice of income. Here is why it happens and how you can beat it.
Why Does the 60% Tax Trap Exist?
In the UK, every worker receives a tax-free Personal Allowance (£12,570). However, once your Adjusted Net Income (ANI) crosses £100,000, your Personal Allowance is reduced by £1 for every £2 earned above £100,000.
⚡ The Double-Hit Math (£100k to £125,140):
- You pay 40% Higher Rate Income Tax on every extra £100 earned.
- You lose £50 of tax-free Personal Allowance, which gets pushed into the 40% tax bracket, adding another £20 in tax.
- Total Tax: £40 + £20 = £60 per £100 (60% effective tax rate!)
Once your ANI hits £125,140, your Personal Allowance is completely wiped out (£0 remaining), and your marginal income tax rate reverts back to 45% (Additional Rate).
Comparison: £110k Salary Without vs With Pension Sacrifice
See how making a £10,000 pension contribution via salary sacrifice reduces your taxable income back to £100,000, saving thousands in tax:
| Metric | Without Pension Sacrifice | With £10k Pension Sacrifice | Net Impact |
|---|---|---|---|
| Gross Annual Salary | £110,000 | £110,000 | — |
| Pension Contribution (Sacrifice) | £0 (0%) | £10,000 (9.09%) | +£10,000 in Pension |
| Adjusted Net Income (ANI) | £110,000 | £100,000 | -£10,000 ANI |
| Personal Allowance Retained | £7,570 (Tapered) | £12,570 (100% Retained) | +£5,000 Tax-Free PA |
| Annual Income Tax | £33,512 | £27,512 | Saves £6,000 Tax |
| Annual National Insurance (2%) | £5,551 | £5,351 | Saves £200 NI |
| Annual Take-Home Pay | £70,937 | £67,137 | -£3,800 Take-Home |
| Total Value (Take-Home + Pension) | £70,937 | £77,137 | +£6,200 Overall Gain! |
* Summary: By sacrificing £10,000 into your pension, your take-home pay reduces by only £3,800—meaning the government effectively funds £6,200 of your £10,000 pension deposit!
Model Your Own 60% Tax Trap Scenario
Use our interactive calculator to see how salary sacrifice pension contributions impact your take-home pay.
Other Ways to Reduce Adjusted Net Income
- Gift Aid Charitable Donations: Donations made under Gift Aid reduce your ANI by the grossed-up donation value (£80 donation reduces ANI by £100).
- Electric Vehicle (EV) Lease: Sacrificing salary for a company EV reduces gross salary before tax assessment.
- Buying Extra Annual Leave: Sacrificing salary for extra holidays reduces your gross ANI.