UK Income Tax 2026: Employee Guide to PAYE

The UK tax year runs from 6 April to 5 April, a quirk of history dating to the calendar change of 1752. For most employees, income tax is handled entirely through the PAYE (Pay As You Earn) system, meaning your employer deducts the correct amount before your salary reaches your bank account. That does not mean you should ignore how it works. Tax code errors, benefit-in-kind deductions, and National Insurance changes can all affect your take-home pay, and understanding the system means you can spot mistakes before they compound.

This guide covers the 2026/27 tax year for employees working under PAYE in England, Wales, and Northern Ireland, with a separate section on the Scottish income tax rates that apply to Scottish taxpayers.

> QUICK ANSWER: In 2026/27, the UK personal allowance is £12,570 (frozen until 2028). Income tax rates are 20% (basic), 40% (higher), and 45% (additional) on earnings above £125,140. Employees pay National Insurance at 8% on earnings between £12,570 and £50,270, then 2% above that. PAYE deducts tax and NI automatically from your pay. Scottish taxpayers pay different rates set by the Scottish Parliament. Access your tax records at gov.uk/personal-tax-account.

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How PAYE Works

Pay As You Earn is the mechanism by which HMRC collects income tax and National Insurance (NI) contributions from employees. Your employer receives a tax code from HMRC for each employee and uses it to calculate the correct deduction each pay period.

The system works cumulatively across the tax year. If your circumstances change mid-year (for example, you get a pay rise or start receiving a company car), HMRC updates your tax code and your employer adjusts future deductions to account for any underpayment or overpayment to date.

At the end of the tax year, your employer issues a P60, which is a statement of the total pay and tax deducted over the year. This is an important document: keep it for at least six years.

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Income Tax Bands 2026/27 (England, Wales, and Northern Ireland)

| Band | Taxable income | 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 | Above £125,140 | 45% |

The personal allowance of £12,570 has been frozen since 2021/22. The government confirmed in the Spring Budget 2024 that it will remain frozen until April 2028. In practice, because wages typically rise with inflation while the threshold stays static, more employees are pulled into higher tax bands each year. This is sometimes called fiscal drag.

The Personal Allowance Taper

If your income exceeds £100,000, your personal allowance reduces by £1 for every £2 of income above that threshold. At £125,140 the personal allowance is eliminated entirely. This creates an effective marginal rate of 60% on income between £100,000 and £125,140, because you are paying 40% income tax on the additional income and simultaneously losing personal allowance that was sheltering other income.

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Scottish Income Tax Rates 2026/27

Scotland has its own income tax rates and bands, set by the Scottish Parliament under the Scotland Act 2016. If you live in Scotland (not just work there), you pay Scottish Income Tax (SRIT) rather than UK income tax on your non-savings, non-dividend income.

| Band | Rate |

|---|---|

| Starter rate (up to £14,876) | 19% |

| Basic rate (£14,877 to £26,561) | 20% |

| Intermediate rate (£26,562 to £43,662) | 21% |

| Higher rate (£43,663 to £75,000) | 42% |

| Advanced rate (£75,001 to £125,140) | 45% |

| Top rate (above £125,140) | 48% |

Note that the personal allowance (£12,570) still applies in Scotland, so the starter rate begins above that threshold. Scottish rates for savings income and dividends are the same as for the rest of the UK.

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National Insurance Contributions (Class 1)

National Insurance (NI) is a separate contribution levied on earnings, distinct from income tax. Employees pay Class 1 NI, which contributes to the National Insurance Fund, your State Pension entitlement, and certain contributory benefits such as New Style Jobseeker's Allowance.

For 2026/27, the employee NI rates are:

| Earnings | Employee rate |

|---|---|

| Up to £12,570 (Lower Earnings Limit) | 0% |

| £12,571 to £50,270 | 8% |

| Above £50,270 | 2% |

Your employer pays additional Class 1 NI on your earnings above £5,000 per year at approximately 13.8%. This is separate from your deductions and does not reduce your net pay directly, but it is a significant cost to your employer.

Your NI contributions record determines your entitlement to the full new State Pension (currently requiring 35 qualifying years). You can check your NI record and State Pension forecast via the HMRC Personal Tax Account at gov.uk/personal-tax-account.

The NI year (like the tax year) runs from 6 April to 5 April.

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Understanding Your Tax Code

Your tax code is a combination of numbers and letters that tells your employer how much tax-free income you are entitled to in the year. The most common codes are:

1257L is the standard code for most employees. The number represents your tax-free personal allowance divided by 10 (1257 x 10 = £12,570). The letter L means you are entitled to the standard personal allowance.

Other letters have the following meanings:

| Letter | Meaning |

|---|---|

| M | You receive the marriage allowance from your spouse or civil partner |

| N | You have transferred the marriage allowance to your spouse or civil partner |

| T | HMRC needs more information (used as a holding code) |

| BR | All income taxed at the basic rate (20%); often used for second jobs |

| D0 | All income taxed at the higher rate (40%) |

| D1 | All income taxed at the additional rate (45%) |

| K | Negative allowance: untaxed income or benefits exceed your personal allowance |

| NT | No tax to be deducted |

| 0T | All income taxed; no personal allowance applied |

A K code means HMRC is collecting tax on a benefit in kind (such as a company car or private medical insurance) or on underpaid tax from a previous year, which exceeds your personal allowance. This reduces your effective tax-free pay below zero.

How to Check and Correct Your Tax Code

HMRC can make mistakes, particularly when employers change, when you have multiple income sources, or when benefits in kind are incorrectly reported. You should check your tax code at the start of every tax year.

Log into your HMRC Personal Tax Account at gov.uk/personal-tax-account to see your current tax code and the reasons behind it. If you think it is wrong, you can update it online or call HMRC directly. Overpaid tax is refunded; underpaid tax is usually collected through an adjustment to the following year's code.

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Key Pay Documents: P60, P45, and Payslips

Payslips (Itemised Pay Statement) must be provided by your employer on or before each pay day under the ERA 1996. Your payslip must show gross pay, each tax and NI deduction (and its purpose), and net pay. Many employers now provide these electronically.

For more detail on understanding your payslip deductions, see our [UK employment rights 2026 guide](/en/blog/employment-rights-uk-2026-complete-guide).

P60 is issued once per year after 5 April. It shows total pay and all tax and NI deducted over the completed tax year. Your employer must give you a P60 by 31 May. Keep this document safely: it is needed for self-assessment returns, mortgage applications, and checking you have been taxed correctly.

P45 is issued when you leave a job. It shows your earnings and tax paid from 6 April to your leaving date. Hand it to your new employer so they can apply the correct cumulative tax position rather than a temporary emergency code.

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Self-Assessment: When Employees Must File

The majority of employees do not need to complete a self-assessment tax return. PAYE handles everything automatically. However, you must register for self-assessment if any of the following apply:

• •Your income is over £100,000 in the tax year
• •You are self-employed or have a side business with profits above £1,000
• •You receive rental income above £1,000 before expenses
• •You have untaxed income such as savings interest above your Personal Savings Allowance (£500 for higher-rate taxpayers, £1,000 for basic-rate taxpayers)
• •You or your partner receive Child Benefit and either of you earns over £60,000 (High Income Child Benefit Charge)
• •You have foreign income or capital gains to report

The online self-assessment deadline is 31 January following the end of the tax year (so for 2025/26, by 31 January 2027). Paper returns must be filed by 31 October. Missing the deadline incurs an automatic £100 penalty.

Register for self-assessment at gov.uk/register-for-self-assessment.

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Tax Relief and Allowances You May Be Missing

Beyond the personal allowance, several reliefs can reduce your tax bill:

Marriage Allowance lets you transfer £1,260 of unused personal allowance to a basic-rate taxpayer spouse or civil partner, saving up to £252 per year. Both partners must be basic-rate taxpayers; the higher earner cannot be in the higher-rate band.

Personal Savings Allowance allows basic-rate taxpayers to receive £1,000 in savings interest tax-free (£500 for higher-rate; none for additional-rate taxpayers).

Pension contributions made into a workplace or private pension attract tax relief at your marginal rate. Under relief at source, your pension provider claims 20% tax relief automatically and adds it to your pot. Higher-rate taxpayers can reclaim additional relief through self-assessment.

Working from home allowance was simplified after the pandemic: employees who are required to work from home can claim £6 per week (£312 per year) without needing to provide receipts.

Professional subscriptions paid out of pocket to approved professional bodies can be deducted from your taxable income.

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National Insurance Number

A National Insurance number (NIN) is essential for working lawfully in the UK. It is an eight-character reference in the format XX 99 99 99 X (two letters, six digits, one letter). It is unique to you and links your tax and NI records.

If you are a UK citizen, you will have been issued a NIN automatically before your 16th birthday. If you are a non-UK national, you must apply for one before you can work. Apply through gov.uk/apply-national-insurance-number.

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Practical Steps to Manage Your Tax

1. Log into your HMRC Personal Tax Account (gov.uk/personal-tax-account) and verify your current tax code.
2. Check your P60 each April against your payslips to confirm the totals match.
3. If you have changed jobs mid-year, ensure your new employer received your P45. Without it, you may be placed on an emergency code (often 1257L week 1/month 1) which does not use your cumulative pay history.
4. If you pay the High Income Child Benefit Charge, file a self-assessment return even if you have no other untaxed income.
5. Check whether you are missing marriage allowance, pension tax relief, or working-from-home relief.

If you are currently between roles and searching for your next position, [JobButler AI](/en/) aggregates live UK job postings with salary filters so you can search by net-pay expectations once you understand your tax position.

For further context on the employment terms you will encounter in a new job, read our [UK employment rights 2026 complete guide](/en/blog/employment-rights-uk-2026-complete-guide).

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Common PAYE Mistakes and How to Fix Them

Taxed on the wrong code for the whole year: If you were on an emergency code (such as 0T or BR) for several months, HMRC will usually correct this automatically at year end, but you can prompt a refund earlier by contacting HMRC.

Benefits in kind not reported: If your employer provides a company car, health insurance, or other taxable benefits, these should be reported to HMRC on a P11D form each July. The tax on these benefits is typically collected through an adjusted tax code in the following year.

Two jobs and too much basic-rate band used on one of them: If you have two jobs, one employer gets your full personal allowance (code 1257L) and the other should tax from the first pound at BR (basic rate). If both are using 1257L, you will underpay tax and receive a bill from HMRC.

Moving to Scotland or leaving Scotland: If you move between Scotland and the rest of the UK mid-year, HMRC should update your code to reflect the change. If it is not updated promptly, contact HMRC directly.

HMRC's Personal Tax Account is the best starting point for checking and correcting your position. For tax-related employment disputes, you can also contact HMRC's employer compliance team if you believe your employer has operated PAYE incorrectly.