HMRC's 60% Tax Trap: A Growing Burden for UK Households
Households across the United Kingdom are facing a significant financial challenge as HMRC imposes an effective 60% income tax rate on certain earners. This steep rate applies to individuals with total incomes between £100,000 and £125,140, a result of the tapering personal allowance rules that have created what experts call a "tax trap."
The Mechanics of the 60% Tax Band
While most taxpayers are familiar with the standard 20%, 40%, and 45% income tax thresholds, the effective 60% band operates differently. For every £100 of income within the £100,000 to £125,140 range, £40 is deducted as income tax, and an additional £20 is lost due to the reduction in personal allowance. This combination results in a marginal rate of 60%, compounded by a 2% employee National Insurance contribution on that income.
Niki Patel, a tax and trusts specialist at Technical Connection, warns: "If you're in a profession that rewards strong performance with good bonuses, a great year 'on paper' can have a nasty sting-in-the-tail at tax year-end."
Rising Numbers Affected by the Tax Trap
The scale of this issue is expanding rapidly. According to HMRC estimates, approximately 723,000 people currently fall into this income bracket for the 2025-26 tax year, a dramatic increase from about 300,000 in 2017-2018. Forecasts suggest this number could rise to 850,000 by 2028-29, highlighting a growing trend that impacts more households each year.
This surge is largely driven by the freeze on income tax thresholds, which has been in place since 2021 and was extended until at least April 2031 in the 2025 Autumn Budget. As wages continue to rise steadily, more individuals are pushed into higher tax bands without corresponding adjustments to thresholds.
Understanding Personal Allowance Tapering
Basic-rate taxpayers are entitled to a £12,570 personal allowance, allowing them to earn this amount tax-free annually. However, once income reaches £100,000, this allowance begins to taper down. Patel explains: "Once your income is £100,000 or more, the personal allowance slowly tapers down at a rate of £1 for every £2 of income above £100,000."
This mechanism means that for incomes between £100,000 and £125,140, the loss of personal allowance effectively adds an extra 20% to the standard 40% income tax rate, creating the 60% effective marginal rate.
Strategies to Mitigate the Impact
Financial advisors recommend several approaches to avoid this tax trap. Making pension contributions is highlighted as one of the most effective methods, as it can reduce taxable income and help individuals retain more of their earnings. This strategy not only provides immediate tax relief but also supports long-term financial planning.
As the number of affected households grows, understanding these rules becomes increasingly crucial for financial management. The combination of frozen thresholds and rising incomes ensures that this issue will remain a key concern for UK taxpayers in the coming years.
