What is the 40% Tax Bracket and How Does It work in the UK?

Received a pay rise or bonus? That’s great. But you must understand that you are now in the 40 tax bracket. This may sound alarming because this tax bracket is higher. However, it doesn’t mean all of your income gets taxed at 40%. Fortunately, the UK tax system is progressive and fair. Your income is divided into bands. Let’s understand what the 40% tax bracket is, how it works, and who pays it. This blog also explains the recent updates that the UK government has introduced for UK earners.

What is the 40% Tax Bracket?

The 40 tax bracket is the higher rate that is applied to your portion of your taxable income that exceeds the threshold. Since the UK uses a fairer and progressive system, crossing this threshold does not mean all of your income is taxed at a higher rate. This higher rate of Income Tax applies only to income above the higher-rate threshold, not your entire salary.

At What Salary Do I Pay 40% Tax?

To be in the 40 tax bracket, your income must be more than £50,270 in total gross annual income. You only pay the 40% tax rate on the portion of your income that exceeds £50,270, not on your total gross income. Look at the table below to understand Income Tax rates on your taxable income (for England, Wales, and Northern Ireland):

Band	Taxable income	Tax rate
Personal allowance	Up to £12,570	0%
Basic rate	£12,571 to £50,270	20%
Higher rate	£50,271 to £125,140	40%
Additional rate	over £125,140	45%

Note: If your adjusted net income is more than £125,140, you do not get a Personal Allowance on taxable income.

What Tax Band is 40%?

As mentioned in the above table, the “higher rate” tax band is the 40 tax bracket. This tax structure means that you are only taxed at 40% when your income is more than £50,270, not everything you earn. According to recent UK tax analyses, this threshold has remained frozen in recent years, pulling more middle earners into the higher rate bracket over time.

How the 40 Tax Bracket Actually Works In the UK?

People often assume that earning above £50,270 means your entire income is taxed at 40%. However, it is incorrect. Instead, the UK tax system applies tax in slices. Let’s understand it with an example: Suppose you earn £60,000. The first £12,570 will be taxed at 0%. Then the next £37,700 will be taxed at 20%, and the remaining £9,730 will be taxed at 40%.

Who Does the 40% Tax Bracket Apply To?

Anyone with taxable income over £50,270 falls in the 40 tax bracket. This applies to people in England, Wales, and Northern Ireland. Whether you are an employee,  self-employed person, or an individual with taxable income from rental properties, dividends, or investments, you will pay 40% tax on some part of your taxable income that falls in this band. Keep in mind that you do not pay 40% tax on your entire salary, but only on the portion above £50,270. So, falling into the 40 tax bracket does not reduce your take-home pay significantly. Instead, it increases tax on additional income above the threshold.

What is the Fiscal Drag Effect?

Fiscal drag is a UK tax concept. This tax concept is not a separate tax or charge, but how the tax system works when tax thresholds stay frozen while wages rise. Wages have increased, but the £50,270 threshold has not risen in line with inflation. This means many people are being pulled into the 40 tax bracket each year, and the government collects more tax without changing headline rates. Moreover, a pay rise can move you into a higher tax band, even if you are not really rich. This is why many workers in the UK earning around £50k to £70k now find themselves in the higher-rate category, even though previously this was considered upper-middle income.

Who is Most Affected by the 40% Tax Bracket?

The 40 tax bracket affects mid-to-high earners in professional jobs, small business owners, contractors, people with bonuses or commission-based income, and individuals with combined income sources. According to UK tax policy data, only a minority of taxpayers fall into the higher rate band. However, taxpayers contribute a large share of total income tax revenue due to progressive taxation.

How Much Tax Will I Pay If I Earn Over 40k?

If you are earning £40,000, you will not pay any 40% tax. This amount falls into the basic rate band (£12,571 to £50,270), meaning you will pay the basic rate of tax, which is 20%. The amount you will pay can vary depending on Income Tax, National Insurance, and any deductions or benefits. Here is the breakdown of the amount of tax you will pay on your taxable income: Your first portion of income, £12,570, will be taxed at 0% (tax-free allowance). Then the remaining £27,430 will be taxed at 20% (basic rate). However, if your taxable income is more than £50,270, you are in the 40 tax bracket, and you will pay a higher rate.

What is the Hidden 60% Tax Trap?

A key UK tax issue that affects people earning between £100,000 and £125,140 is the 60% tax trap. In the UK, if your net income exceeds £100,000, your Personal Allowance begins to decrease. It reduces by £1 for every £2 over £100,000. And when your income reaches £125,140, your personal allowance disappears completely.  This creates an effective marginal tax rate of about 60% on income between £100,000 and £125,140. This income range is one of the most heavily taxed segments in the UK system.

Does My Entire Salary Get Taxed at 40%?

No, your entire salary is not taxed at 40%. The progressive tax system in the UK applies tax rates only to the portion of your income above certain thresholds. You can pay 0% on the first part of your income (personal allowance), 20% on the next portion, and only income above about £50,270 is taxed at 40%.

How to Avoid Paying 40% Tax on Salary?

You cannot avoid paying tax on your salary if it falls into the basic, higher, or additional tax band. If your taxable income is between £50,271 and £125,140, you fall into the 40 tax bracket. Failing to pay the tax you owe can lead to HMRC penalties, interest, or both. However, you can reduce 40% tax on salary using legal methods. Here are the legal methods you can use to reduce the 40% tax on your salary:

Pension Contributions

One of the common ways to reduce tax on salary is to pay pension contributions. Pension contributions can reduce your taxable income, meaning less of your income falls into the higher-rate band.

Salary Sacrifice

Discuss with your employer to swap part of your salary for company benefits or pension payments. This will make your salary officially lower, and you may drop into a lower tax band.

Gift Aid Donations

Donate money to a charity. Gift Aid extends your basic-rate band, meaning more of your income may be taxed at 20% instead of 40%.

Invest in an Individual Savings Account

Invest money in an Individual Savings Account (ISA). Investing in an ISA is not taxed on interest, dividends, or capital gains. Although it does not reduce your salary tax, it protects investment growth from tax.

Does the 40 Tax Bracket Change?

Yes, it can change, but not very often. In the UK, the 40% income tax threshold and rates are set by the government each tax year. Therefore, they can be adjusted in budgets. Nonetheless, they often stay the same for several years. The tax bands can change through government budgets, inflation adjustments, and fiscal drag. The 40% rate itself has changed historically, but it has been stable at 40% for many years.

What are the Common 40% Tax Bracket Mistakes to Avoid?

Here are some of the common mistakes you need to avoid:

• Assuming a salary increase will always reduce your take-home pay
• Not checking your tax code
• Missing pension opportunities and overlooking the value of pension tax relief
• Ignoring the £100k threshold
• Forgetting to claim expenses
• Failing to plan for multiple income streams

The Bottom Line

If your income falls beyond the basic rate income tax band, then you enter the 40 tax bracket, where you pay tax only on the amount above the threshold. Being in the higher tax bracket does not mean your entire income is taxed at 40%. The UK tax system applies tax only to the portion above £50,270. However, with rising wages and thresholds frozen, many UK workers are being pulled into the higher-rate bracket each year. That is why it is important to understand how the system works. If you are someone approaching the £50k–£100k income range, you need effective tax planning to structure your income properly. Want to avoid paying more tax than necessary? That’s why we are here to help. At MicroEntityAccounts, we have professionals who can review your income, offer advice, and help you ensure you are not overpaying HMRC. Get a quote and see how we can support your tax planning needs! Disclaimer: The content provided on Micro-Entity Accounts, including our blog and articles, is for general informational purposes only and does not constitute financial, accounting, or legal advice.