By
August 11, 2026
What Profits Does a UK Limited Company Pay Corporation Tax On?
A UK limited company generally pays Corporation Tax on its taxable profits, but taxable profit can include more than the money generated from everyday sales.
Depending on the company's activities, Corporation Tax can potentially apply to trading profits, investment income and chargeable gains from selling certain assets.
Understanding what counts towards taxable profits is important for calculating your company's Corporation Tax correctly and planning for future tax payments.
This guide explains the main types of profit that can be subject to UK Corporation Tax and how taxable profit differs from turnover and accounting profit.
Broadly, a UK company may have to pay Corporation Tax on money it makes from:
The exact Corporation Tax position depends on the company's activities and circumstances.
For many small UK limited companies, trading profits will be the main source of taxable profit.
However, businesses with investments, property, financial income or asset disposals may need to consider additional sources of taxable income.
Trading profits are the profits generated through the company's normal business activities.
For example, a company may earn trading income by:
The company's taxable trading profit is not simply its total sales.
Qualifying business expenses and other relevant tax adjustments must first be considered.
A simplified calculation is:
Trading income – qualifying business expenses ± tax adjustments = taxable trading profit
Corporation Tax rules are then applied to the company's taxable profits.
Generally, Corporation Tax is not calculated directly on company turnover.
Turnover is the revenue generated by the business before relevant costs are deducted.
For example, imagine a company has:
Annual sales: £200,000
Qualifying business costs: £140,000
The company's initial profit might therefore be:
£60,000
Further tax adjustments, allowances, losses or reliefs may then need to be considered before determining the final taxable profit.
Corporation Tax would therefore not normally be calculated on the full £200,000 of turnover.
This distinction is particularly important for businesses with high sales but relatively low profit margins.
Companies that sell physical or digital products generally calculate their trading profits by considering the income received from sales and the relevant costs of operating the business.
For a retailer or ecommerce company, costs might include qualifying expenditure relating to:
Once the appropriate expenses and tax adjustments are taken into account, the remaining taxable trading profit may be subject to Corporation Tax.
Service businesses can also be subject to Corporation Tax on their taxable trading profits.
This could include companies providing:
The company generally starts with its business income and deducts qualifying expenses before making the necessary tax adjustments.
A company may also receive income from investments.
Depending on the type of investment and applicable tax rules, investment income may form part of the company's profits for Corporation Tax purposes.
Examples could include certain:
Different rules can apply to different types of investment income, so companies with significant investment activities should consider the relevant HMRC guidance or obtain professional tax advice.
Interest earned on money held by a company can have Corporation Tax implications.
For example, if a company keeps surplus cash in an interest-paying business savings account, the interest received may need to be included when determining the company's taxable profits.
The treatment can depend on the circumstances and applicable tax rules.
Companies should therefore ensure interest and other financial income are correctly recorded in their accounting records.
Corporation Tax can also apply when a company disposes of certain assets and makes a chargeable gain.
This can potentially arise when a company sells or disposes of assets such as:
The taxable amount is not necessarily simply the full sale price.
The calculation of a chargeable gain can take into account factors such as the original acquisition cost and certain allowable costs, subject to the relevant tax rules.
Companies selling valuable assets should therefore consider the potential Corporation Tax consequences before completing the transaction.
This is a common source of confusion.
Individuals can be subject to Capital Gains Tax when they dispose of certain assets.
UK companies generally deal with taxable chargeable gains through the Corporation Tax system instead.
This means a limited company that makes a chargeable gain will normally consider that gain as part of its Corporation Tax position rather than paying individual Capital Gains Tax in the same way as a person.
If a limited company owns property and receives rental income, the profits generated from that property activity can potentially be subject to Corporation Tax.
The taxable profit is generally determined after considering qualifying expenses and the relevant tax rules.
Property taxation can become more complicated where companies own multiple properties, have financing costs or dispose of property, so professional advice may be useful.
The Corporation Tax treatment of dividends received by companies has specific rules.
Many distributions received by UK companies may fall within exemptions, but the exact treatment depends on the circumstances and nature of the distribution.
Companies receiving significant dividend or investment income should therefore check the applicable Corporation Tax rules rather than automatically assuming that all dividends are taxable or tax-free.
Taxable profit is the amount on which the company's Corporation Tax liability is ultimately calculated.
It can differ from both turnover and accounting profit.
A simplified process might look like:
Trading profits
+ taxable investment income
+ chargeable gains
± tax adjustments
– available allowances, losses and reliefs
= taxable profits for Corporation Tax purposes
The applicable Corporation Tax rules can then be used to calculate the company's liability.
The profit shown in your company's financial accounts does not necessarily equal its taxable profit.
This is because accounting rules and tax rules do not always treat income and expenditure in exactly the same way.
For example, certain expenses included in the accounts may not qualify for a Corporation Tax deduction.
Other expenditure may qualify for tax relief through capital allowances rather than being deducted in the same way as an ordinary business expense.
A company may also have losses or other reliefs that affect the final taxable amount.
This means the Corporation Tax calculation may require adjustments to the company's accounting profit.
Qualifying business expenses can generally reduce taxable trading profits.
Depending on the business, these could potentially include:
Not every payment made by a company is automatically deductible for Corporation Tax.
Companies should therefore maintain accurate records and keep appropriate invoices and receipts.
Generally, no.
Dividends paid by a company to its shareholders are normally distributions of profits rather than deductible business expenses.
This means a company cannot generally reduce its taxable profits simply by paying those profits to shareholders as dividends.
Corporation Tax is normally considered before available post-tax profits are distributed to shareholders.
A company that does not have taxable profits may have no Corporation Tax to pay for that particular period.
However, company losses can have important tax consequences.
Subject to the applicable rules and restrictions, qualifying losses may potentially be used against profits or carried to another accounting period.
The treatment depends on the type of loss and the company's circumstances.
A company making a loss may also continue to have HMRC and Companies House filing obligations even when no Corporation Tax payment is due.
Corporation Tax is not simply charged on the amount of cash sitting in your company's bank account.
Your bank balance and your taxable profit are different things.
For example, your company might have:
£100,000 in its business bank account
but that does not automatically mean it has £100,000 of taxable profit.
The money could include capital introduced by shareholders, borrowed money, previous years' profits or other amounts that require different accounting and tax treatment.
Similarly, a company can have taxable profits without having the equivalent amount available as cash.
The treatment of overseas profits depends on factors including the company's tax residence, activities and the nature of the income.
A UK-resident company may potentially have UK Corporation Tax obligations relating to profits arising outside the UK, subject to applicable tax rules, exemptions and relief from double taxation.
Companies operating internationally should not assume that foreign income is automatically outside the UK Corporation Tax system.
Cross-border taxation can become complex, particularly where the company has overseas offices, employees, subsidiaries, investments or permanent establishments.
Professional international tax advice may therefore be appropriate.
After the company's taxable profits have been determined, the relevant Corporation Tax rules and rates are applied.
The applicable rate can depend on the company's profit level and circumstances.
Because Corporation Tax rates, thresholds and rules can change, businesses should check the current Corporation Tax guidance on GOV.UK rather than relying on figures quoted in an older article.
This helps keep the information relevant for future accounting periods.
For most UK limited companies, Corporation Tax is normally due 9 months and 1 day after the end of the relevant accounting period.
The Company Tax Return generally has a separate filing deadline.
Companies should therefore track their tax payment and filing deadlines independently.
Different payment arrangements can apply to certain larger companies.
A UK company can potentially pay Corporation Tax on taxable trading profits, certain investment income and chargeable gains from disposing of assets.
Not necessarily. Different types of company income can receive different tax treatment, and qualifying expenses, allowances, losses, exemptions and reliefs may affect the amount ultimately subject to Corporation Tax.
Corporation Tax is generally based on taxable profits rather than simply the total value of company sales.
Interest received by a company can have Corporation Tax implications and should generally be recorded and considered when preparing the company's tax calculation.
If the disposal creates a chargeable gain, the gain may form part of the company's Corporation Tax position.
Profits generated from company property activities can potentially be subject to Corporation Tax.
A company with no taxable profits may have no Corporation Tax to pay for that period. However, filing obligations may still apply, and qualifying losses may potentially be available for tax relief subject to the relevant rules.
A UK limited company does not simply pay Corporation Tax on every pound that enters its bank account.
Instead, Corporation Tax is generally based on the company's taxable profits.
Depending on the business, these can include:
Trading profits + taxable investment income + chargeable gains
The company then needs to consider qualifying expenses, tax adjustments, allowances, losses, exemptions and reliefs before its final Corporation Tax liability can be determined.
Understanding the difference between turnover, accounting profit and taxable profit is therefore essential for company owners.
Accurate bookkeeping throughout the year can make it much easier to identify the company's different sources of income, calculate taxable profits and prepare for its Corporation Tax liability.
For businesses with property, investments, overseas income, substantial asset disposals or more complicated company structures, professional tax advice may be appropriate.
This article provides general information only and does not constitute tax, accounting or legal advice. UK tax rules and individual circumstances can change. Check current HMRC guidance or consult a qualified professional where necessary.
