40% Tax Rate: What It Is and How It Works

The 40% tax bracket UK taxpayers enter is one of the most misunderstood areas of the tax system. Many people in the higher rate tax UK band assume all their income is taxed at 40%.

That assumption regularly costs them money. Only the portion above the threshold is taxed at the higher rate. Everything below continues to be taxed at the standard lower rates.

Understanding how the 40% tax bracket UK operates can help you plan more effectively and avoid overpaying year after year. Higher rate tax UK payers have several legitimate ways to reduce what they owe.

Pension contributions and salary sacrifice are among the most effective options available to them.

This guide explains who pays 40% tax and sets out the 2025/26 and 26/27 thresholds. It covers England, Northern Ireland, Scotland and Wales.

It also covers practical steps to help manage your overall tax position. The higher rate tax UK rules apply whether you are employed or self-employed.

Knowing those rules clearly is the first step to applying them correctly. Each section of this guide addresses a different aspect of the higher rate band in plain, practical terms.

How the 40% Tax Bracket UK Threshold Works in 2025/26

The 40% tax bracket UK threshold for 2025/26 sits at £50,271 in England, Wales and Northern Ireland. Any taxable income above that point is subject to a higher rate of tax of either 40% or 45%.

Below that level, income is taxed at 20% once you have used your personal tax allowance which gives you tax free income up to that threshold.

The UK uses a marginal tax system. Each pound is taxed at the rate of the band it falls into, not at 40% across the board. A salary of £60,000 does not attract 40% tax on the full amount.

Only the £9,729 above the £50,271 threshold is taxed at the higher rate. Your overall effective tax rate remains considerably lower than 40% as a result.

The threshold has been frozen since 2022 and is expected to remain frozen until April 2031. As wages rise with inflation, more workers drift into the 40% tax bracket without a real-terms pay increase.

This effect is known as fiscal drag and it has drawn millions of additional earners into the higher rate band.

Income Tax in Scotland: A Different Set of Rules

Scottish income tax differs significantly from the rest of the UK. For 2025/26, the Scottish higher rate begins at £43,663 rather than £50,271. The Scottish higher rate is also 42% rather than 40%.

A worker in Edinburgh earning £50,000 pays more income tax than a counterpart in Manchester on the same salary. The gap grows as income rises and the two tax systems diverge further up the income scale.

Scotland has additional bands that do not exist elsewhere in the UK. An intermediate rate of 21% applies to income between £14,877 and £31,092. A higher rate of 42% applies between £43,663 and £75,000.

A Scottish advanced rate of 45% applies between £75,001 and £125,140.

If you live in Scotland, your tax code includes the letter S. HMRC applies the correct rates based on your registered address, not your workplace location.

Checking your tax code confirms whether the right rates are being used for you. If the S is missing, contact HMRC to correct it before any underpayment builds up.

What Counts as Taxable Income in the Higher Rate Tax UK Band

Reaching the 40% tax bracket UK threshold is not only about your base salary. HMRC calculates your total taxable income from all sources before applying the higher rate. This total determines which band you fall into.

A pay rise or one-off bonus can push combined income above £50,271. This can catch people out, particularly those managing multiple income streams simultaneously.

Savings interest above your £500 personal savings allowance or PSA is also taxed at 40% rather than 20%. Rental income, dividends and taxable benefits in kind all count towards the threshold as well.

These income sources all contribute to your total taxable income:

• Salary, wages, overtime and bonuses from employment
• Self-employment profits alongside your main job
• Rental income from property you let out
• Dividend income above the £500 dividend allowance
• Taxable benefits in kind, including company cars and private medical insurance

Reviewing your income from all sources before the tax year end helps you plan for the higher rate.

40% Tax Relief on Pension Contributions

Basic rate taxpayers receive 20% relief on their contributions. As a higher rate taxpayer, you may claim the additional 20%, effectively doubling the value of the relief.

A contribution of £800 from your net pay becomes a £1,000 pension contribution after basic rate relief is applied.

You can then claim a further £200 back through your self assessment return or HMRCs private pension claims service if you don’t complete a tax return.

The net cost reduces to £600, making pension saving substantially more tax-efficient at the higher rate.

Higher rate pension tax relief is not claimed automatically in all cases. It depends on your pension scheme type and is worth checking. If you pay into a personal pension, HMRC may not know unless you declare it.

The relief needs to be claimed via your tax return, online or by post. You can also request an adjustment to your tax code for current tax year claims.

You may be able to backdate claims for previous tax years. HMRC typically permits claims going back four tax years.

A higher rate taxpayer with unclaimed pension relief could be entitled to a notable income tax rebate from HMRC.

The 60% Tax Trap Between £100,000 and £125,140

The 60% tax trap is an important feature of the higher rate tax UK system. It applies to income between £100,000 and £125,140 due to the tapering of the personal allowance.

Once income exceeds £100,000, your personal allowance begins to reduce. For every £2 earned above £100,000, you lose £1 of personal allowance. By £125,140, the allowance reaches zero and no tax-free income remains.

This reduction creates an effective marginal rate of 60% in that range. You pay 40% income tax and also lose allowance that was sheltering other income.

The two effects combine to produce the 60% effective rate.

Pension contributions are one of the most effective responses to the 60% trap. They reduce your adjusted net income, which is what HMRC uses to determine whether the allowance is tapered.

Bringing adjusted net income below £100,000 could restore your full personal allowance entirely.

Child Benefit, Adjusted Net Income and Your Tax Bill

The child benefit high income tax charge affects higher rate taxpayers who receive child benefit or whose partner does.

If adjusted net income exceeds £60,000, you may need to repay some or all child benefit. This is done through your self assessment return.

The charge rises at 1% of child benefit received for every £200 of income above £60,000. Once income reaches £80,000, the full amount may need to be repaid.

Many higher rate taxpayers are unaware of this obligation until they receive a notice from HMRC.

Those who cross the £60,000 threshold for the first time are particularly at risk. If you are not yet registered for self assessment, you may need to register to declare and pay the charge.

Reducing adjusted net income through pension contributions or salary sacrifice can lower the charge. This makes pension planning relevant beyond retirement savings alone.

Even a modest contribution may tip your income below the threshold and eliminate the charge entirely.

Ways to Reduce Your Higher Rate Tax Bill

Higher rate taxpayers have several legitimate options to reduce the amount of income taxed at 40%. The most effective work by lowering your adjusted net income, sheltering returns from tax, or both.

Salary Sacrifice

Salary sacrifice lets you exchange part of your gross salary for a non-cash benefit provided by your employer.

Two of the most common options are pension contributions or an electric vehicle. The arrangement reduces your overall taxable income rather than your take-home pay.

For a salary sacrifice 40% taxpayer, the tax saving is significant. Sacrificing £1,000 of salary into a pension avoids 40% income tax on that amount.

National Insurance savings are added on top, making the combined benefit substantial for regular contributors.

Salary sacrifice is only available through your employer. Not all employers offer it, and what can be sacrificed varies between schemes.

In most cases, the employer bears no extra cost, as their National Insurance liability also falls when your salary decreases.

Those approaching the £100,000 threshold can benefit considerably from salary sacrifice. It reduces adjusted net income and can protect the personal allowance from tapering.

Individual Savings Accounts (ISAs)

ISAs offer another way to shelter income from the higher rate. The annual ISA allowance for 2025/26 is £20,000.

Savings held in a cash ISA accumulate free of income tax. Investment returns inside a stocks and shares ISA are sheltered from both income tax and capital gains tax.

Interest and dividends inside an ISA do not count as taxable income. They cannot push you into or further through the higher rate band.

Student Loan Considerations

Higher rate taxpayers with a Plan 2 student loan can face an effective marginal rate of around 49%. The 9% loan repayment stacks on top of 40% income tax within the higher rate band.

Reducing adjusted net income through pension contributions or salary sacrifice is especially valuable in that situation.

Employment Expenses Relief for Higher Rate Taxpayers

Higher rate taxpayers receive 40% relief on valid employment expense claims. Basic rate taxpayers receive only 20% on the same claim.

Moving into the higher rate band therefore doubles the value of any relief due. Expenses must be incurred wholly, exclusively and necessarily in the performance of your duties.

Common examples include professional subscriptions, tools, uniforms and travel between temporary workplaces.

For a full list of qualifying expenses and how to claim, see the employment expenses tax relief guide on taxrebateservices.co.uk.

Higher Rate Taxpayer Self Assessment Requirements

Moving into the 40% tax bracket UK can trigger a self assessment requirement that can be easy for people overlook.

Higher rate taxpayers in long-term PAYE employment may not realise they now need to file a return.

PAYE is designed to collect income tax from your employment earnings automatically. It does not account for all the reliefs and obligations that arise at the higher rate.

Filing a self assessment return is how you reclaim overpaid tax and declare any additional liabilities correctly.

You may need to file a return if any of the following apply to you:

• Your income exceeds £150,000 from any source.
• You have untaxed income from self-employment, rental or savings.
• You need to claim higher rate pension tax relief not applied by your employer.
• You are liable for the child benefit high income tax charge.
• You have dividend income above your annual allowance.

The online self assessment deadline is 31 January following the end of the tax year. Missing it results in an automatic £100 penalty, with further charges for continued non-filing.

Making Tax Digital for ITSA

From April 2026, Making Tax Digital for Income Tax takes effect. Self-employed individuals and landlords with income above £50,000 must submit quarterly updates to HMRC using compatible software.

This directly affects many higher rate taxpayers with untaxed income sources. Registering early and choosing software before the deadline avoids a rushed transition.

For more on what this means for higher rate taxpayers, see the Making Tax Digital guide on taxrebateservices.co.uk.

Capital Gains Tax, Dividends and Gift Aid for Higher Rate Taxpayers

Moving into the 40% tax bracket UK also affects the rates you pay on investment income and gains.

These are often overlooked but can add to a significant additional liability for those with savings, shares or property.

Capital Gains Tax for Higher Rate Taxpayers

Higher rate taxpayers pay 24% on gains from shares and most other chargeable assets. Residential property that is not a main home is also taxed at 24%.

Basic rate taxpayers pay 18% on the same gains. The annual CGT exempt amount for 2025/26 is £3,000. Only gains above that figure attract the CGT charge.

Keeping gains within your annual exempt amount reduces your CGT liability to zero for that tax year.

Spreading disposals across two tax years allows the exempt amount to be used twice. This reduces the total taxable gain across both periods.

Dividend Tax for Higher Rate Taxpayers

Higher rate taxpayers pay 33.75% on dividend income above the £500 annual allowance. From April 2026, this rate rises to 35.75%.

Dividends are added to your other income when HMRC calculates your total tax position. Dividends that push your combined income above £50,271 are taxed at the higher rate of 33.75% on that portion.

Gift Aid for Higher Rate Taxpayers

Higher rate taxpayers receive more valuable relief from Gift Aid donations than basic rate payers.

When you donate under Gift Aid, the charity reclaims 20% basic rate tax on the gross donation value. As a 40% taxpayer, you may then claim the additional 20% relief.

On a £100 donation, the net cost to you reduces to £75 once both reliefs are applied.

The additional relief is usually claimed through self assessment. If you are not in self assessment, you can ask HMRC to adjust your tax code instead via your personal tax account, in writing or by phone.

The key to managing the 40% tax bracket UK is understanding how the system works, not avoiding it.

The higher rate applies only to income above the threshold, not to everything you earn. Knowing where your income sits within the band matters.

If it is close to £100,000, reducing adjusted net income to protect the personal allowance can become a worthwhile exercise.

Many higher rate taxpayers are unaware of the full range of relief available to them. Whether or not you file a self assessment return, knowing what you can claim is the starting point.

Key Takeaways: 40% Tax Bracket UK

• The 40% tax bracket UK applies to income between £50,271 and £125,140 in England, Wales and Northern Ireland for the 2025/26 tax year.
• Only the portion of your income above the threshold is taxed at 40%. Income below that level is taxed at basic rate or not at all.
• Higher rate taxpayers may claim 40% tax relief on pension contributions, though the additional relief often needs to be claimed via self assessment.
• Income between £100,000 and £125,140 faces an effective marginal rate of 60% due to the tapering of the personal allowance.
• Gift Aid, ISAs and salary sacrifice are additional tools to reduce taxable income or shelter returns from higher rate tax.
• Filing a self assessment return may be required when you enter the higher rate band, particularly if you have untaxed income, need pension relief or owe the child benefit high income tax charge.

40% Tax Bracket UK FAQs

Q1: What income triggers the 40% tax bracket UK?

For 2025/26, the 40% tax bracket applies to taxable income above £50,271 in England, Wales and Northern Ireland. This threshold includes salary, bonuses, rental income and other taxable sources combined. Only income above that figure is taxed at 40%.

Q2: Do you pay 40% tax on all your income?

No. The UK uses a marginal tax system, meaning only the income above the higher rate threshold is taxed at 40%. Income below £50,271 is taxed at 20% or is tax-free within your personal allowance.

Q3: What is the Scottish higher rate tax threshold?

In Scotland, the higher rate of 42% begins at £43,663 for the 2025/26 tax year. This is lower than the £50,271 threshold that applies in England, Wales and Northern Ireland, and the rate itself is 2% higher.

Q4: How do I claim 40% tax relief on pension contributions?

Higher rate pension tax relief is not applied automatically in all cases. If you pay into a personal pension, you may need to claim the additional 20% relief through a self assessment tax return or by asking HMRC to adjust your tax code. Claims can typically be backdated for up to four tax years.

Q5: What is the 60% tax trap?

The 60% tax trap affects those earning between £100,000 and £125,140. In that range, the personal allowance is withdrawn at £1 for every £2 earned above £100,000. This creates an effective marginal rate of 60%, combining 40% income tax with the loss of tax-free allowance on other income.