Imagine earning a six-figure salary, only to discover that nearly two-thirds of your additional income vanishes into the tax abyss. This is the harsh reality for millions of workers in the UK, who are now facing a staggering 60% marginal tax rate. But here's where it gets even more shocking: this isn't just about the ultra-wealthy—it’s affecting train drivers, teachers, and police officers too. And this is the part most people miss: the system is designed in a way that can actually penalize you for earning more.
Over the next decade, more than 3 million workers are expected to fall into this 60% income tax trap. Professions like train drivers, who are projected to earn over £100,000 within 12 years, and senior police officers and teachers, who could hit this threshold in 15 years, are particularly at risk. At first glance, a progressive tax system—where higher earners pay more—seems fair. But the Centre for Policy Studies argues that no worker should ever hand over more than half of their additional earnings to the government. Yet, that’s exactly what’s happening.
Here’s the controversial part: While the top tax rate in England and Wales is 45% (and 48% in Scotland), those earning over £100,000 face a marginal tax rate of 60% (or 62% including National Insurance). This is due to a quirk in the system that reduces the tax-free personal allowance as income rises. For every £2 earned above £100,000, individuals lose £1 of their £12,570 tax-free allowance. By the time they reach £125,140, the allowance disappears entirely.
To make matters worse, graduates with student loans face repayments of up to 9% of their salary above a certain threshold. Combine this with the 60% tax rate, and someone earning £100,000 could effectively face a marginal tax rate of 71%. That means for every extra £1 earned, they take home just 29p. Is this fair, or is it a disincentive to strive for higher earnings?
Parents are also caught in this trap. Once their income exceeds £100,000, they lose valuable childcare support worth thousands of pounds. This has led many to turn down promotions or cut back on working hours just to stay below the threshold. For example, a parent with two children under three in a London nursery would need to earn over £149,000 to offset the loss of childcare support—a figure that seems almost unattainable for many.
Shaun Moore from Quilter highlights the broader issue: “The £100,000 threshold is no longer a niche problem. It’s a cliff edge that changes incentives fundamentally. People can end up worse off for earning more, which discourages taking on extra responsibility or senior roles.” This isn’t just about individual frustration—it’s a systemic issue that could stifle productivity and economic growth.
By 2035, Quilter predicts that 3.113 million workers will be earning above £100,000, with professions like IT directors, specialist medical practitioners, and air traffic controllers joining the ranks. Yet, fiscal drag—where wages rise but tax thresholds remain frozen—is pulling millions into higher tax bands. The basic-rate and higher-rate thresholds haven’t changed since 2021, and the freeze is set to continue until at least 2031.
Here’s a thought-provoking question: Is the government inadvertently punishing ambition by failing to address this distortion? The £100,000 threshold for losing the personal allowance was introduced in 2010. If it had kept pace with inflation, it would be £150,000 today. Similarly, the childcare support threshold, frozen since 2017, would now be £130,000 if adjusted for inflation.
While pay rises and promotions should be celebrated, they often come with a financial labyrinth. Unless an income boost significantly clears the £100,000 mark, many families risk being worse off. Some parents mitigate this by contributing more to their pensions through salary sacrifice schemes, but even this solution will be capped from April 2029.
So, what’s the solution? Should the government raise the thresholds, reform the tax system, or leave it as is? Do you think this system is fair, or is it time for a change? Let’s discuss in the comments—your perspective could spark a much-needed conversation.
