How to Avoid the 60% Tax Trap in the UK
The 60% tax trap is a costly UK administrative anomaly affecting earners between £100,000 and £125,140. Learn how to legally mitigate this effective tax rate through pensions and salary sacrifice.
The 60% tax trap is an unofficial, informal tax band created by the gradual withdrawal of your tax-free personal allowance once your income exceeds a specific threshold. If you earn between £100,000 and £125,140, you lose £1 of your personal allowance for every f2 of income above £100,000, resulting in an effective 60% tax rate on that portion of your earnings. This means that a substantial portion of your higher earnings goes directly to HM Revenue and Customs (HMRC), though you can legally avoid this trap through proactive tax planning.
Key Takeaways: Navigating the £100,000 threshold
- The 60% tax trap affects individuals with an adjusted net income between £100,000 and £125,140.
- The personal allowance of £12,570 is reduced by £1 for every £2 earned above £100,000.
- Earners face a combined 62% marginal tax rate in England, Wales, and Northern Ireland when employee National Insurance is added.
- Scottish taxpayers face an even higher combined marginal rate of 67.5% due to higher localized income tax rates.
- You can legally reduce your adjusted net income and reclaim your allowance using pension contributions, salary sacrifice schemes, and Gift Aid.
What is the 60% tax trap?
The 60% tax trap is a high effective tax band that occurs when an individual's adjusted net income falls between £100,000 and £125,140, caused by the tapering of the personal allowance.
According to the Income Tax Act 2007, s.35, the standard UK personal allowance is set at £12,570 (frozen until April 2031). This allowance is progressively tapered down for higher earners, reducing by £1 for every £2 of adjusted net income that exceeds £100,000, meaning the allowance is fully lost once income reaches £125,140. Because this taper is an implicit clawback rather than a statutory tax rate, it remains an informal and unofficial tax band that does not appear on standard HMRC tax tables.
How does the 60% tax trap work?
The tax trap works by pairing the standard higher-rate tax with the loss of your tax-free allowance, making every extra pound highly taxed.
- When you earn an extra £1 of income above £100,000, that £1 is immediately taxed at the 40% higher rate, costing you 40p in tax.
- Earning that same £1 triggers the s.35 personal allowance taper, which reduces your tax-free personal allowance by 50p.
- Because that 50p of allowance is lost, 50p of your previously tax-free income becomes fully taxable at the 40% higher rate, adding another 20p of tax.
- Combining the 40p higher-rate tax and the 20p taper tax results in a total tax charge of 60p on that single £1 of extra earnings.
A worked example: Tax on £110,000 income
To understand the mathematical impact, we can look at how much tax is paid on an income of £110,000 compared to £100,000.
| Tax Calculation Element | Financial Figure |
|---|---|
| Income overspill above £100,000 | £10,000 |
| Standard higher-rate tax (40% on £10,000) | £4,000 |
| Personal allowance lost via taper (£10,000 divided by 2) | £5,000 |
| Additional higher-rate tax on lost allowance (40% on £5,000) | £2,000 |
| Total income tax paid on £10,000 overspill | £6,000 |
| Effective marginal tax rate on this portion | 60% |
What is the true marginal tax rate with National Insurance?
The true marginal rate represents your real-world take-home deduction when combining both income tax and National Insurance contributions.
In England, Wales, and Northern Ireland, employees pay 2% National Insurance on earnings within this threshold, which pushes the total effective marginal rate to 62%. In Scotland, the tax system operates differently; due to higher Scottish income tax rates, taxpayers in the taper zone face an even heavier combined marginal rate of 67.5%.
How to avoid the 60% tax trap
You can legally avoid the 60% tax trap by taking specific financial planning steps to lower your adjusted net income below £100,000.
- Make pension contributions: Paying into a workplace or private pension reduces your adjusted net income, restoring your personal allowance and securing up to 60% effective tax relief.
- Utilise salary sacrifice: Agreeing to swap a portion of your cash salary for non-cash benefits—such as an electric vehicle lease or structured childcare schemes—lowers your gross taxable income below the threshold.
- Make Gift Aid donations: Giving money to registered UK charities via Gift Aid officially reduces your adjusted net income calculation, helping you reclaim portions of your lost personal allowance.
- Use pension carry forward: If you have unused annual pension allowances from the previous three tax years, you can make larger, lump-sum pension contributions to lower your current-year adjusted net income below £100,000.
At what exact income does the 60% tax trap end?
The 60% tax trap ends at exactly £125,140 in adjusted net income, which is the point at which your £12,570 personal allowance is fully tapered to zero. Beyond this point, your marginal rate drops to the 45% additional tax rate (or 48% in Scotland).
Does the 60% tax trap apply in Scotland?
Yes, but the impact is even more severe in Scotland. Because of the different income tax bands established by the Scottish Government, Scottish taxpayers face a higher combined effective tax rate of approximately 67.5% within the personal allowance taper zone.
Can pension contributions bring me back below the £100,000 limit?
Yes, personal and workplace pension contributions directly reduce your adjusted net income. If you bring your adjusted net income down to £100,000 or less, you will completely restore your £12,570 personal allowance, effectively dodging the extra tax.
What is the difference between taxable income and adjusted net income?
Taxable income is your total gross income before any personal deductions are applied. Adjusted net income, which HMRC uses to calculate the personal allowance taper, is your total taxable income minus deductions like grossed-up pension contributions and Gift Aid charity donations.