The UK 60% effective tax rate on income £100k-£125,140. Personal Allowance reduction, marginal rates, and how to avoid it with salary sacrifice/pension. See our United Kingdom tax calculator for estimated take-home pay calculations.

If you earn between 100,000 and 125,140 in the UK, you're caught in what tax experts call the "60% tax trap." This hidden tax phenomenon means you're paying one of the highest effective tax rates in the entire UK tax system - higher than billionaires pay on much of their income. This guide explains exactly how the 60% tax trap works and, more importantly, how to escape it.
The 60% tax trap occurs because of how the UK Personal Allowance is withdrawn from high earners. Here's what happens:
The Math Behind 60%:
| Component | Rate |
|---|---|
| Higher Rate Income Tax | 40% |
| Personal Allowance Withdrawal Tax Effect | 20% |
| Total Marginal Rate | 60% |
The "extra" 20% comes from losing 1 of your 12,570 tax-free allowance for every 2 earned. Since that 1 would have been taxed at 0% but now gets taxed at 40%, you're effectively paying 20% more tax on every pound earned in this band.
You're affected if your "adjusted net income" falls between 100,000 and 125,140. This includes:
Adjusted Net Income includes:
It does NOT include:
Example 1: 110,000 Salary
If you earn 110,000, here's your tax breakdown:
| Income Band | Amount | Tax Rate | Tax |
|---|---|---|---|
| 0 - 7,570 | 7,570 | 0% (reduced PA) | 0 |
| 7,570 - 50,270 | 42,700 | 20% | 8,540 |
| 50,270 - 100,000 | 49,730 | 40% | 19,892 |
| 100,000 - 110,000 | 10,000 | 60% effective | 6,000 |
| Total Tax | 34,432 |
Without the 60% trap (if PA wasn't withdrawn):
Example 2: 125,000 Salary
At 125,000, you're near the top of the trap:
Don't forget National Insurance on top of the 60% income tax effect:
| Earnings | NI Rate | Total Marginal Rate |
|---|---|---|
| 50,270 - 100,000 | 2% | 42% (40% tax + 2% NI) |
| 100,000 - 125,140 | 2% | 62% (60% tax + 2% NI) |
| Above 125,140 | 2% | 47% (45% tax + 2% NI) |
The absurdity: You pay a higher marginal rate on income between 100k-125k (62%) than on income above 125k (47%)!
Making pension contributions is the most powerful way to escape the 60% trap:
How it works:
Example: 115,000 salary
| Without Pension | With 15,000 Pension |
|---|---|
| Adjusted income: 115,000 | Adjusted income: 100,000 |
| Personal Allowance: 5,070 | Personal Allowance: 12,570 |
| Tax paid: 37,489 | Tax paid: 27,432 |
| Net benefit | 6,057 saved |
Your 15,000 pension contribution effectively cost you only 8,943 after tax relief - a 40% discount!
Annual Allowance considerations:
Salary sacrifice can be even more effective than personal pension contributions because you also save National Insurance:
Salary sacrifice for pension:
Other salary sacrifice options:
Example: 120,000 salary with 20,000 salary sacrifice pension
Gift Aid donations reduce your Adjusted Net Income:
How it works:
Example:
This makes charitable giving extremely tax-efficient for those in the trap.
If you have control over when you receive income (bonuses, dividends), consider timing:
Strategies:
Example: Year-end bonus
For those with flexibility (contractors, consultants), operating through a limited company can help:
The dividend strategy:
Important caveats:
Mistake 1: Not Claiming Pension Tax Relief
Many higher earners make pension contributions but forget to claim relief via their tax return. This can mean missing out on thousands.
Mistake 2: Ignoring Carry Forward
If you haven't maximized pension contributions in previous years, you can use that unused allowance now. Check your pension contributions for the last 3 years.
Mistake 3: Not Checking Adjusted Net Income
Some people don't realize taxable benefits (like company cars) push them into the trap. Check your P11D for your total taxable income.
Mistake 4: Assuming You Can't Avoid It
Many assume the 60% trap is unavoidable. In reality, strategic pension contributions can often eliminate it entirely.
| Salary | In the Trap | Escaping It | Annual Savings |
|---|---|---|---|
| 105,000 | 29,489 tax | 27,432 tax | 2,057 |
| 110,000 | 32,489 tax | 27,432 tax | 5,057 |
| 115,000 | 35,489 tax | 27,432 tax | 8,057 |
| 120,000 | 38,489 tax | 27,432 tax | 11,057 |
| 125,000 | 41,489 tax | 27,432 tax | 14,057 |
Assumes reducing Adjusted Net Income to 100,000 via pension contributions
Step 1: Calculate Your Adjusted Net Income
Step 2: Determine How Much to Contribute
Step 3: Check Your Annual Allowance
Step 4: Make the Contribution
Step 5: Claim Your Relief
Consider pension contributions if:
Consider alternatives if:
See how the 60% trap could affect your salary using our free calculator:
Enter your gross salary to see:
For more information on the Personal Allowance withdrawal:
The 60% tax trap is one of the UK's most punishing tax situations, but it's also one of the most avoidable. With strategic pension planning, most high earners can reduce or eliminate this hidden tax entirely. Take action before the end of the tax year to maximize your savings.