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If you’re earning over £100,000, here’s what you need to know before 5 April.
Avoid costly mistakes and let Taxfix take care of it for you. Our UK-accredited accountants make filing quick and stress-free, starting from just £99.
Everyone in the UK is entitled to a Personal Allowance – the amount you can earn tax-free. For the 2025/26 tax year, that’s £12,570.
The income tax rates in the 2025/26 tax year 👇
| Income | Tax rate | Tax band |
| Up to £12,570 | 0% | Personal allowance |
| £12,571 to £50,270 | 20% | Basic rate |
| £50,271 to £125,140 | 40% | Higher rate |
| over £125,141 | 45% | Additional rate |
Where does the 60% come from?
For every extra £2 you earn in the £100,000–£125,140 band, you pay 40% tax on that income and lose £1 of tax-free allowance, which is then taxed at 40% too. That’s £1.20 in tax on every £2 of income: an effective rate of exactly 60%.
In other words, for every extra £100 you earn between £100,000 and £125,140, you keep just £40 after income tax. And that’s before National Insurance. It’s a rarely discussed quirk of the UK tax system, and it catches a lot of people off guard.

You’re in the trap if your adjusted net income – not just your salary – is between £100,000 and £125,140. This includes:
What is adjusted net income?
This is actually where your biggest opportunity lies. Reduce your adjusted net income below £100,000 and you escape the trap entirely.
Whether you need to file a Self Assessment return depends on your full circumstances, not just your salary. If you earn over £100,000 and have income from dividends, capital gains, rental property, or other sources, you will almost certainly need to file – and you’ll want to, because it’s how you claim back higher-rate pension tax relief and other reliefs you’re entitled to.
The deadline for filing your 2025/26 Self Assessment return online is 31 January 2027.
Taxfix makes it simple. Get started from £99 If you’re unsure whether you need to file, use HMRC’s online checker or speak to one of our accredited accountants.
There are three main strategies. We’ve ordered them by impact and accessibility.
Most people in their 20s and 30s aren’t thinking about retirement. But the ones who do are quietly building a significant head start. Pension contributions might not sound exciting, but they’re the single most effective way to escape the 60% tax trap.
Three reasons:
Is your employer using “net pay” for your pension contribution?
Good news: whatever you save already includes any tax you would have paid. No need to do anything.
Bad news: it’s quite hard to change how much you save whenever you want to save more – you have to ask your employer whenever you want to save more or less.
Is your employer using “relief at source”? Then how much tax you can get back depends on how much you earn:
HMRC will basically give you back the tax that you paid on the income that you used for your pension contribution.
In your case you earned £49,000 and contributed £1,000 to your pension.
You get £250
Your pension provider will automatically get this for you and add it to your pension pot.
Your pension pot will now be worth £1,250.
Earning over £100k with dividends, capital gains, or rental income? You need to file a Self Assessment. Taxfix handles the full return – and finds every relief you’re entitled to. From £99.
This works great if you’re starting out in investment banking or consulting, where usually it’s the bonus that sends you into the 60% tax trap.
By reducing your cash earnings by just a bit, you can push your income below £100,000 – while also getting your bonus. This works especially well if a bonus or pay rise is about to push you over £100k for the first time.
For example:
Many of these can be arranged tax-efficiently through your employer, though the tax treatment varies by benefit. Pension contributions and the Cycle to Work scheme offer the most straightforward savings. For others like private medical insurance or a company car, it’s worth checking the benefit-in-kind rules with your employer or a tax accountant.
Attention:
Startup investments are high-risk. Only invest what you can afford to lose, and consider taking financial advice first. Be aware that startups are risky investments and your capital is at risk. The money you invest could go up or down.
This is another great way to save on tax. Although be aware that startups are risky investments and your capital is at risk. The This type of investment works similarly to the pension tax relief: you invest in a startup today, and you can get the tax back on that amount through a Self Assessment tax return.
There are three startup investment schemes in the UK:
Plus, if the startup makes it big, gains on EIS and SEIS shares are free from Capital Gains Tax – provided you’ve held the shares for at least 3 years and your income tax relief hasn’t been withdrawn. VCT shares are always exempt from CGT on disposal, though you need to hold them for at least 5 years to keep the income tax relief.
How to find startups to invest in if you’re not a professional angel investor:
Just remember to file a Self Assessment and declare these investments: if you don’t, not only will you not get your tax back, but the gains from the eventual profit (IPO, acquisition, etc.) will not be tax-free either.
Don’t leave money on the table. File with Taxfix and we’ll find every relief you’re entitled to.
We can help. We offer one-off, personal tax advice from an accredited accountant, especially for high-earners. Whether you’re looking to be more tax-efficient, getting your head around adjusted net income or anything else, we’ve got your back. Just £139 per consultation.
The 60% tax trap is a sneaky one, but now you know how it works, and more importantly, how to dodge it. Whether it’s through pension contributions or other tax-efficient moves, there are ways to keep more of what you earn. Because let’s be real, no one wants to pay more tax than they have to.
The most effective way is to reduce your adjusted net income below £100,000 before 5 April. The main options are:
The deadline is 5 April. Contributions and donations made after that date do not count for the current tax year.
There is no official “60% tax bracket” in the UK. The 60% figure is an effective marginal rate – not a formal band – that applies to income between £100,000 and £125,140. Once your adjusted net income exceeds £100,000, HMRC withdraws your Personal Allowance at £1 for every £2 earned above that threshold. The Personal Allowance for 2026/27 is £12,570, so it disappears entirely at £125,140.
Because you are already paying 40% higher-rate tax, and each extra £2 also costs you £1 of tax-free allowance (taxed at 20%), the combined effect is 60p of tax on every £1 earned in this band. Example: income rises from £100,000 to £110,000. That extra £10,000 costs £6,000 in income tax – an effective rate of 60%.
Not automatically – but most people earning over £100,000 will still need to file. Since April 2024, earning over £100,000 through PAYE alone no longer triggers a mandatory Self Assessment requirement.
You will need to file if any of the following apply:
You will also want to file to claim higher-rate pension tax relief – the only way to get it back. The online filing deadline for 2025/26 is 31 January 2027.
Yes. The trap applies to anyone whose adjusted net income falls between £100,000 and £125,140 – including sole traders and company directors. As a self-employed person, you can contribute to a personal pension such as a SIPP. Each pound contributed reduces your adjusted net income pound for pound. You cannot use salary sacrifice (that is an employee arrangement), but personal pension contributions and Gift Aid donations work just as well.
One key difference: your exposure only becomes visible when you file your Self Assessment return – sometimes months after the tax year ends. By then, the allowance for that year is permanently lost. Planning before 5 April is essential.
The formula is simple: gross contribution needed = your adjusted net income minus £100,000. Example: adjusted net income of £115,000 means you need a £15,000 gross pension contribution to escape the trap entirely.
If you contribute via a relief-at-source pension (such as a SIPP), you only pay 80% yourself – your provider claims the 20% basic-rate relief automatically. You then claim any additional higher-rate relief through your Self Assessment return. So for a £15,000 gross contribution: you pay £12,000, your provider adds £3,000. Key limits for 2026/27: the pension annual allowance is £60,000 (or 100% of your UK earnings if lower). You can also carry forward unused allowances from the previous three tax years.
No – the 60% figure is income tax only. With National Insurance added, the effective rate is higher. For employees, National Insurance above the Upper Earnings Limit (£50,270 for 2026/27) is 2%. So the combined marginal rate in the trap zone is 62% – meaning you keep just £38 from every extra £100 earned between £100,000 and £125,140.
For self-employed people, Class 4 National Insurance also applies at 2% above £50,270, giving a similar combined rate. Note: salary sacrifice pension contributions reduce your gross salary, so you also save on National Insurance. However, from April 2029, the National Insurance saving from salary sacrifice pension contributions will be capped at £2,000 per year, following the Autumn Budget 2025.
This article provides general information only and is not personalised tax advice.
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