Taxable Income Explained: What Counts and How to Calculate It

Taxable income is the amount of money you earn or receive that HMRC can charge tax on.

Whether you're employed, self employed, a landlord, or earning from savings and investments, understanding what counts as taxable income helps you pay the right amount of tax and avoid mistakes on your tax return. 

This guide explains what HMRC considers taxable income, what doesn't count as income, and how the rules apply to different types of income.

Key points

• Not all income is taxed in the same way 📋
  Different types of income are subject to different tax rules. Understanding how each type is treated helps you report your income correctly.
• Some income is tax-free ✅
  Individual Savings Account income, Premium Bond prizes, many state benefits, gifts, and certain small amounts of trading or property income may not be taxable, depending on the circumstances.
• Accurate calculations can reduce your tax bill 🧮
  Claiming allowable expenses and available tax reliefs can reduce the tax you owe, while accurate calculations and records help you report the right figures to HMRC and avoid paying too much or too little.
• Keeping your finances organised makes tax much easier 🚀
  ANNA automatically categorises your income and expenses, estimates your tax bill in real time, stores your receipts, and helps you prepare your Self Assessment, so calculating your taxable income takes far less time and effort.

What is taxable income?

Taxable income is the amount of income you have to pay tax on after deducting your Personal Allowance and any eligible tax reliefs. HMRC uses this figure to calculate how much Income Tax you owe. 

Your taxable income can come from different sources, including:

• Salary from employment
• Self employed profits
• Rental income
• Savings interest above your tax-free allowance
• Dividends above the Dividend Allowance
• Most pension income

However, not all income is taxable. Certain state benefits, gifts, and income covered by specific tax-free allowances may not count towards your taxable income.

Gross income vs taxable income

Your gross income and taxable income aren’t usually the same.

Gross income is the total income you receive before any tax-free allowances, deductions, or tax reliefs are applied.

Taxable income is the part of your gross income that's subject to Income Tax.

For example, if you earn £40,000 a year, that's your gross income. After your Personal Allowance is deducted, the remaining amount is your taxable income, and it’s taxed according to the relevant Income Tax bands. 

Types of taxable income

HMRC divides taxable income into several categories. Each type has its own rules for how it’s calculated, reported, and taxed. Understanding which types of income you receive is necessary to accurately work out what needs to be included on your tax return.

Employment income

Employment income is the money you earn from working for an employer, and it includes your salary, bonuses, overtime, commission, and some employee benefits.

Certain benefits in kind, such as a company car, private medical insurance, or other employer-provided perks, can also count as taxable income. Your employer usually reports these through PAYE and deducts any Income Tax and National Insurance you owe from your pay automatically.

Self employment income

Self employment income is the profit you make from running your own business. You calculate it by subtracting allowable expenses, such as equipment, accounting software, office costs, or business travel, from your total business income.

If you are a sole trader or partner in a partnership, you report your self employed income through your Self Assessment tax return. You pay tax only on your business profits, not your total sales or turnover.

Rental income

Rental income is money you receive from letting out a property, such as a house, flat, or holiday accommodation. You normally pay tax on your rental profit, which is your rental income minus allowable expenses.

Allowable expenses include letting agent fees, property repairs, insurance, and other costs related to running the rental. 

For residential property, mortgage interest isn’t deducted directly from rental income. Instead, you receive a tax credit worth 20% of your mortgage interest payments, which reduces the amount of Income Tax you owe. 

Savings income

Savings income includes interest earned from bank accounts, building societies, and certain investments, such as bonds.

Most people can earn some savings interest tax-free through their Personal Savings Allowance (PSA). The amount you can earn before paying tax depends on your Income Tax band. 

Basic rate taxpayers can usually earn up to £1,000 in interest tax-free, while higher rate taxpayers can earn up to £500. Additional rate taxpayers don’t receive a Personal Savings Allowance.

Dividend income

Dividend income is money you receive from owning shares in a company. This could be from investments in listed companies or from your own limited company if you take some of your profits as dividends.

Dividends have their own tax rules, including a separate Dividend Allowance. This means you can receive a certain amount of dividend income tax-free before paying Dividend Tax on any amount above the allowance.

Pension income

Pension income includes most payments you receive from private pensions, workplace pensions, and the State Pension.

Most pension income is treated as taxable income and is taxed at your usual Income Tax rates. However, if you have a private or workplace pension, you can usually take up to 25% of your pension pot as a tax-free lump sum when you access your pension. 

The remaining amount is normally taxable when you withdraw it, whether you take it as regular pension payments or as lump sums. 

What's not taxable

Not all money you receive needs to be included when working out your taxable income. Some types of income are completely tax-free, while others are covered by specific allowances or exemptions. 

Knowing what doesn’t count can help you avoid paying tax on income that HMRC doesn’t require you to report.

Common examples of non-taxable income include:

• Income and gains from Individual Savings Accounts (ISAs): Interest, dividends, and investment gains earned within an ISA aren’t subject to Income Tax or Capital Gains Tax, regardless of how much you hold.
• Certain state benefits: Many state benefits are tax-free, including Personal Independence Payment (PIP) and other disability benefits. Child Benefit is also not taxed directly, although higher earners may need to repay some or all of it through the High Income Child Benefit Charge.
• Premium Bond prizes and lottery winnings: Prizes from Premium Bonds, National Lottery winnings, and similar gambling prizes are not treated as taxable income.
• Gifts you receive: Money or gifts you receive are usually not taxed as income. However, Inheritance Tax rules may apply in some situations, particularly for large gifts made before someone’s death.
• Small amounts of trading or property income: The Trading Allowance and Property Allowance can each cover up to £1,000 of gross income from these sources. If your income is above £1,000, you may need to report it through Self Assessment and pay tax on the amount that exceeds the allowance. You can also choose to calculate your taxable profit by deducting allowable expenses instead if that gives a better result. 

How to calculate your taxable income

Working out your taxable income is usually straightforward once you know which income to include and which deductions you're entitled to.

Here’s what to do:

• Add up your taxable income from all sources, such as employment, self employment, rental income, savings interest, dividends, and pensions
• Deduct any allowable business expenses if you're self employed or have rental income
• Apply any tax reliefs you're entitled to claim, such as eligible pension contributions or Gift Aid
• Subtract your Personal Allowance from the number
• Apply the relevant Income Tax bands to the remaining figure to calculate how much tax you'll pay

Here’s an example of how that works in practice:

Sarah earns a salary of £38,000, £600 in savings interest, and £300 in dividends. 

Her total income is £38,900. Because her savings interest and dividends fall within the relevant tax-free allowances, only her salary counts towards her taxable income. After subtracting her £12,570 Personal Allowance, she's taxed on £25,430. 

This falls entirely within the basic rate Income Tax band, so it's taxed at 20%, resulting in a final tax bill of £5,086. 

Why understanding your taxable income matters

Getting your taxable income right means you claim every allowance you're entitled to. It also means fewer surprises when it’s time to file your Self Assessment, since you'll already have a clear picture of what needs to be reported. 

If you run a business, understanding which expenses reduce your taxable profit can make a real difference to your bill each year. This is particularly true if you're close to a band threshold and a pension contribution or a piece of equipment could keep you on a lower rate.

There's also a compliance angle. HMRC can charge penalties and interest if you underreport income. Keeping accurate records and understanding what counts as taxable income can help you file the correct tax return, claim the reliefs you're entitled to, and avoid paying more tax than necessary. 

💡 Did you know? 

With an ANNA business account, every transaction is tagged as it comes in, so working out your taxable profit at the end of the year takes minutes rather than days of digging through statements.

How ANNA helps you stay on top of your taxable income

Keeping track of your taxable income throughout the year can be complicated, especially if you have multiple income streams or run your own business.

ANNA takes most of the manual work out of managing your finances, so it's easier to calculate your taxable income and stay ready for tax deadlines.

Here's how ANNA helps:

• Automatic bookkeeping: ANNA categorises your income and expenses automatically, giving you an up-to-date picture of your taxable profit
• Real-time tax estimates: You can see how much Income Tax and National Insurance you're likely to owe as your finances change throughout the year
• Receipt capture: ANNA’s Receipt Scanner lets you snap a photo of receipts in the app so allowable expenses aren't forgotten when it's time to file your tax return
• Smart pots: Automatically set aside a percentage of your income for tax to avoid unexpected bills
• Free Self Assessment support: Submit your tax return directly through ANNA to make the filing process faster and simpler
• 24/7 support: Get help whenever you need it from ANNA's UK-based customer support team

Sign up with ANNA to keep your taxable income in check, all year round.