Small Business Accountants

What is Income Tax?

The HMRC Personal Tax Account (PTA) is a free online portal where UK individuals can view their tax code, check income and deductions, access P60 and P11D documents, review their National Insurance record and claim tax refunds. You can sign in through Government Gateway or GOV.UK One Login. The PTA also lets you update personal details, track PAYE payments in real time and file Self Assessment returns.

What is Income Tax? - Overview - GoForma Tax Guides | UK Accountants & Tax Advisors
This article is part of our Small Business Accountants guide — your essential resource for running a small business.

Key takeaways

  • The Personal Tax Account is a free HMRC online service that lets you view your tax code, check income records, access P60 and P11D documents and claim refunds in one place.
  • You can sign in to your PTA through Government Gateway or GOV.UK One Login. You will need your National Insurance number and at least two forms of identity verification.
  • Inside the PTA you can track PAYE deductions in real time, review your National Insurance record, check gaps in contributions and see your State Pension forecast.
  • The PTA lets you update your address, claim Marriage Allowance, report changes to income sources and communicate with HMRC through a secure messaging service.
  • For 2025/26, the personal allowance stays at £12,570 (tax code 1257L). You can confirm your code is correct and spot any errors directly inside the Personal Tax Account.

Introduction

Income tax is a crucial component of the UK’s taxation system, providing a significant portion of the UK government's revenue used to fund public services such as healthcare, education, and infrastructure. It is a tax charged on an individual's total income, including earnings from employment, business profits, investment income, and other sources. Understanding how income tax works in the UK is essential for both residents and businesses to ensure compliance and effective financial planning. This article offers a detailed overview of income tax, covering its fundamentals, tax brackets, allowances, and filing procedures.

One useful tool for this is a Personal Tax Account, which helps you handle your tax affairs easily and efficiently. By setting up a personal tax account, you can easily manage your tax affairs, access tax-related services, and stay updated on your tax obligations. Let's dive into the world of income tax and discover how to set up a personal tax account to streamline your tax matters.

What is Income Tax?

Income tax is a tax levied directly on personal income. In the UK, it is managed by HMRC, the government agency responsible for collecting taxes. Income tax applies to various forms of income, including:

  • Earnings from employment
  • Profits from self-employment
  • Pension income
  • Rental income
  • Interest on savings income
  • Dividends from shares
  • Certain state benefits

Non-Taxable Income

Not all income is subject to tax. Some non-taxable incomes include:

  • Certain state benefits (e.g., Housing Benefit, Child Benefit, Disability Living Allowance)
  • Premium Bond and National Lottery winnings
  • Some scholarships and grants
  • Income from Individual Savings Accounts (ISAs)

How Income Tax Works?

Income tax is a tax charged on an individual's total income during a specific tax year. The tax year is usually a 12-month period determined by the government for tax purposes. The amount of income subject to tax is known as taxable income, which is determined by subtracting allowable deductions and allowances from the total income.

Income tax is important as it provides governments with revenue to fund public services such as healthcare, education, infrastructure, and social welfare programs. It ensures that individuals contribute their fair share towards the functioning of society. The tax rates for income tax are progressive, meaning that higher income earners pay a higher percentage of their income in tax.

Knowing how income tax works is crucial for managing your money effectively. By understanding the tax system, you can plan your finances better, ensure you are paying the correct amount of tax, and take advantage of any income tax reliefs or allowances you may be entitled to. This can help you save money and avoid unexpected tax bills.

Income Tax Rates

Income tax rates and tax brackets determine the percentage of income that individuals are required to pay in tax. The tax system is progressive, meaning that higher-income individuals pay a higher percentage of their income in tax. The current tax bands and rates are:

Your income is taxed progressively, meaning you only pay the higher rate on the part of your income that falls within each band. For example, if you earn £60,000, you pay 20% on the income between £12,571 and £50,270, and 40% on the income over £50,270.

Personal Allowance

Allowances can reduce the amount of income that is subject to tax. The personal allowance is the amount of income you can earn each year without paying tax. It is deducted from the total income to calculate the taxable income. The personal allowance for 2024/25 is £12,570.

Tax-Free Allowances and Reliefs

In addition to the personal allowance, there are other tax-free allowances and reliefs that can reduce your taxable income:

  • Marriage Allowance: Allows you to transfer 10% of your personal allowance to your spouse or civil partner if they earn more than you.
  • Blind Person’s Allowance: An additional allowance for those who are registered blind.
  • Dividend Allowance: The first £500 of dividend income is tax-free.
  • Personal Savings Allowance: Basic rate taxpayers can earn up to £1,000 in savings interest tax-free, and higher rate taxpayers can earn up to £500.

National Insurance Contributions (NICs)

National Insurance Contributions (NICs) are another type of tax that supports state benefits like the NHS, state pensions, and unemployment benefits. NICs are similar to income tax but are specifically reserved for these services.

There are different classes of NICs, each with its own rate:

Class 1: Paid by employees and employers on earnings

Class 2: Paid by self-employed people at a flat rate

Class 3: Voluntary contributions to fill gaps in your NIC record

Class 4: Paid by self-employed people on profits

PAYE System

The Pay As You Earn (PAYE) system is how most employees pay their income tax and NICs. Under PAYE, the employer deducts tax and NICs from employee's wages before paying. This system ensures that the tax is paid regularly and accurately throughout the year.

Employers use employees' tax code, provided by HMRC, to determine how much tax to deduct. The tax code reflects personal allowance and any other adjustments needed. At the end of the tax year, employee receives a P60 form summarizing the total pay and deductions, which helps ensure everything is correct and allows employees to claim any tax refunds if they've overpaid.

Calculating Income Tax

Calculating income tax can seem complex, but breaking it down into simple steps makes it easier to understand.

Step 1: Identify Total Income

First, determine your total income for the current tax year (April 6th to April 5th). Your total income includes:

  • Earnings from Employment: Your salary, wages, bonuses, and any other benefits.
  • Self-Employment Income: Profits from your own business or freelance work.
  • Pension Income: Money received from state, company, or personal pensions.
  • Rental Income: Earnings from letting out property.
  • Interest on Savings: Interest earned from bank accounts and savings.
  • Dividends: Earnings from shares and investments.

Step 2: Deduct Allowances

Next, deduct your personal allowance from your total income. The personal allowance is the amount of income you can earn each year tax-free. For the tax year 2024/25, the standard personal allowance is £12,570.

If your income exceeds £100,000, your personal allowance decreases by £1 for every £2 you earn over this threshold.

Step 3: Apply the Tax Rates

The UK uses a progressive tax system with different rates for different income bands. After deducting your personal allowance, apply the rates of income tax to your remaining income.

Step 4: Calculate Tax

Calculate the tax for each income band separately:

Basic Rate Calculation:

Subtract your personal allowance from your total income.

Calculate 20% of the amount between £12,571 and £50,270.

Higher Rate Calculation:

If your income is above £50,270, calculate 40% of the amount between £50,271 and £125,140.

Additional Rate Calculation:

If your income exceeds £125,140, calculate 45% of the amount over £125,140.

Step 5: Add Up the Tax Amounts

Add the tax amounts from each band to get your total income tax liability for the year.

Example Calculation

Let's say your total income for the year is £60,000.

Total Income: £60,000

Tax Allowance: £12,570

Taxable Income: £60,000 - £12,570 = £47,430

Now, apply the tax rates:

Basic Rate (20%):

Income from £12,571 to £50,270: £50,270 - £12,570 = £37,700

Tax: £37,700 x 20% = £7,540

Higher Rate (40%):

Income from £50,271 to £60,000: £60,000 - £50,270 = £9,730

Tax: £9,730 x 40% = £3,892

Total Tax: £7,540 (basic rate) + £3,892 (higher rate) = £11,432

Income Tax Mistakes to Avoid

When it comes to income tax, there are several common mistakes that individuals should avoid to prevent potential penalties or interest charges.

  • Missing the Filing Deadline: One of the most common mistakes is missing the filing deadline. In the UK, the deadline for submitting a self-assessment tax return online is 31st January following the end of the tax year.
  • Incorrectly Claiming Deductions and Credits: Claiming deductions or credits you’re not entitled to, or missing out on ones you are eligible for, can significantly impact your tax bill.
  • Not Keeping Adequate Records: Good record-keeping is essential for accurate tax reporting. Keep all receipts, invoices, bank statements, and other financial documents for at least six years. This helps in case of audits and ensures you can substantiate your claims.
  • Tax Calculation Errors: Simple math errors can lead to incorrect tax calculations. Using accounting software like Freeagent or hiring a personal tax accountant can help avoid these mistakes.
  • Ignoring Tax Notices: If you receive a notice from HMRC, don’t ignore it. Respond promptly and address any issues raised. Ignoring tax notices can lead to further penalties and complications.

What is a Personal Tax Account?

A personal tax account is an online service provided by HMRC in the UK. By using a personal tax account, you can easily view and update your tax information, check your tax code, submit tax returns, and make payments.

personal tax account dashboard
personal tax account dashboard

Benefits of Having a Personal Tax Account

  1. A PTA allows you to view and update all your tax information such as tax code, address, marital status, etc. in one place.
  2. Track your employment income and tax deductions in real-time
  3. You can file your Self-Assessment tax returns online through your PTA.
  4. The PTA provides reminders and notifications about important tax deadlines, helping you avoid late filing penalties.
  5. View real-time calculations of your tax liabilities based on the information HMRC holds.
  6. You can apply for various tax reliefs and allowances.
  7. The PTA is a secure platform, protecting your personal and financial information. You can access it anytime, anywhere, with an internet connection.
  8. You can make tax payments directly through your PTA, ensuring your payments are processed promptly and securely.
  9. If you have overpaid tax, you can claim a refund through your PTA.
  10. You can communicate directly with HMRC through your PTA, using the secure messaging service.

Watch below video from HMRC on How you can take control of your tax affairs by creating a personal tax account:

Documents Required to Create a Personal Tax Account:

National Insurance number or UK postcode and up to 2 of the following:

  • a valid UK passport or non-UK passport with a biometric chip
  • a UK photocard driving licence issued by the DVLA (or DVA in Northern Ireland)
  • a UK biometric residence permit or card
  • a payslip from the last 3 months or a P60 from your employer for the last tax year
  • details of a tax credit claim
  • details from a Self Assessment tax return
  • information held on your credit record (such as loans, credit cards or mortgages)

Steps to Create Personal Tax Account

  1. Go to the personal tax account page on HMRC’s official website and click the green button labeled ‘Start now’.
  2. You’ll be prompted to sign in with your Government Gateway account using your Government Gateway user ID and password. If you don’t have a Government Gateway account, click ‘Create sign in details’ under the ‘New users of Government Gateway’ heading.
  3. Enter your email address. You’ll receive a verification code via email. Enter this code on the website and click ‘Continue’.
  4. Provide your full name and set a strong password (at least 10 characters).
  5. Get your Government Gateway user ID, a 12-digit number. Use this ID to sign into Government Gateway along with the password you just set.
  6. Select the type of personal tax account you want to create. You have three options:Individual: For personal tax accounts, tax credits, self assessment, and child benefitOrganisation: For limited companies, partnerships, trusts, charities, and estatesTax Agent: For bookkeepers and accountants acting on behalf of clients
  7. If you’re creating a personal tax account for yourself, select ‘Individual’ and click ‘Continue’.
  8. Set up extra security measures to ensure only you can sign in. This includes providing your phone number and choosing how you want to receive access codes.
  9. Enter personal identification information such as your National Insurance number, birth date, and other details about your income and employment status. Follow the on-screen prompts to complete this process.
  10. Once you've completed these steps, you’re ready to use your personal tax account. You can now manage your tax affairs online easily and securely.

Understanding income tax and setting up a personal tax account is crucial for managing your finances effectively. Knowing how income tax works helps you plan better, avoid unexpected bills, and make the most of tax reliefs and allowances. A personal tax account makes managing your taxes easier, allowing you to check your tax codes, submit returns, and make payments all in one place.

Take proactive steps to manage your personal taxes. Set up your personal tax account today, keep your information up to date, and regularly check your account. This will help you stay on top of your tax obligations and avoid any surprises. Additionally, we advise hiring a personal tax accountant to ensure your tax returns are accurate and to help you identify potential savings. Stay proactive, informed, and in control of your taxes for a secure financial future.

Frequently asked questions

What is an HMRC Personal Tax Account?

A Personal Tax Account (PTA) is a free online service from HMRC that gives UK individuals a single place to manage their tax affairs. Through the PTA you can view your tax code, check employment income and deductions, access P60 and P11D documents, review your National Insurance record and claim tax refunds. The service is available around the clock and you can sign in using Government Gateway credentials or GOV.UK One Login.

How do I set up a Personal Tax Account?

Visit gov.uk/personal-tax-account and select Start now. You can sign in with an existing Government Gateway user ID or create new sign-in details. To verify your identity you will need your National Insurance number plus at least two supporting documents such as a valid UK passport, photocard driving licence, recent payslip or P60. Once verified, set up two-factor authentication with your phone number and you are ready to use the account.

What is the difference between Government Gateway and GOV.UK One Login?

Government Gateway is the long-standing sign-in system that uses a 12-digit user ID and password. GOV.UK One Login is a newer system that lets you access multiple government services with one email and password plus identity verification. Both routes give you full access to the Personal Tax Account. HMRC is gradually moving services to GOV.UK One Login, but Government Gateway remains available for existing users.

Can I check my tax code through the Personal Tax Account?

Yes. The PTA displays your current PAYE tax code, the allowances and deductions used to calculate it, and a breakdown of each income source HMRC holds on record. For 2025/26, the standard code is 1257L, reflecting the £12,570 personal allowance. If your code looks wrong you can contact HMRC directly through the PTA secure messaging service or update the income details that feed into the calculation.

Can I claim a tax refund through my Personal Tax Account?

Yes. If HMRC records show you have overpaid income tax, you can use the PTA to check the amount and start a refund claim. Common reasons for overpayment include leaving a job partway through the tax year, having an incorrect tax code, or paying emergency tax on a new job. Refunds are usually paid directly into your bank account within five to six weeks of the claim being processed by HMRC.

What documents can I view inside the Personal Tax Account?

The PTA gives you access to your P60 end-of-year certificate, any P11D benefits-in-kind statements from your employer, and your full National Insurance contribution record. You can also view estimated income tax calculations for the current year, your State Pension forecast, and details of any tax credits or Marriage Allowance claims. All documents are available to download or print for your own records.

Is the Personal Tax Account secure?

HMRC protects the PTA with two-factor authentication. After entering your password, you must confirm a code sent by text, phone call, or authenticator app before you can access the account. All data is encrypted in transit and at rest. You should also keep your sign-in details private, use a strong password of at least 10 characters, and sign out after each session, especially on shared or public devices.

Do I need a Personal Tax Account if my employer handles PAYE?

A PTA is not legally required, but it is strongly recommended even if your employer runs PAYE on your behalf. The account lets you verify that the tax code your employer uses is correct, spot overpayments early, check your National Insurance record for gaps that could affect your State Pension, and update HMRC when your circumstances change. It takes around 15 minutes to set up and is free to use.

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