How UK Income Tax Bands Work
The United Kingdom uses a progressive income tax system, meaning you pay different rates of tax on different portions of your income. For the 2026/27 tax year, there are three main tax bands that apply to most taxpayers in England, Wales, and Northern Ireland. Understanding which band your income falls into is essential for accurate financial planning and knowing exactly how much of your salary you will take home each month.
The Three UK Tax Bands Explained
The basic rate of 20% applies to taxable income between £12,571 and £50,270. This means that after your tax-free personal allowance of £12,570, the first £37,700 of taxable income is charged at this rate. The higher rate of 40% applies to income between £50,271 and £125,140, and the additional rate of 45% kicks in on any income above £125,140. It is important to remember that these rates only apply to income within each band, not to your entire salary. Someone earning £55,000 pays 20% on most of their taxable income and only 40% on the portion above £50,270.
Personal Allowance and Tapering
Every UK taxpayer receives a personal allowance of £12,570, which is the amount you can earn before any income tax is due. However, if your adjusted net income exceeds £100,000, your personal allowance is reduced by £1 for every £2 you earn above that threshold. This creates an effective marginal tax rate of 60% on income between £100,000 and £125,140. Once your income reaches £125,140, your personal allowance is reduced to zero. This tapering mechanism is one of the most misunderstood aspects of UK tax and can significantly affect high earners.
Practical Example at £35,000
Consider a salary of £35,000 per year, which is close to the UK median full-time wage. With the standard 1257L tax code, the first £12,570 is tax-free. The remaining £22,430 falls entirely within the basic rate band and is taxed at 20%, producing an income tax bill of approximately £4,486 per year. After adding National Insurance contributions of around £1,794, the total annual deductions come to roughly £6,280, leaving a monthly take home pay of approximately £2,393. Use our calculator above to see the exact figures for any salary level.
For Scottish residents, the tax bands differ significantly with six separate rates ranging from 19% to 48%. You can explore these in detail on our Scotland tax calculator page. To see how UK tax compares with other countries, visit our main UK calculator.