Running a business in the UK comes with its fair share of responsibilities, and one of the biggest is managing your tax liabilities. For limited companies, corporation tax is a key consideration. The tax you pay on your company’s profits can take a significant chunk of your hard-earned cash.
There are plenty of legal and effective ways to reduce your corporation tax, helping you keep more money in your business for growth, investment, or simply better cash flow. No business owner wants to pay more tax than necessary.
In this guide, we’ll walk you through practical strategies to reduce your tax burden, complete with relatable examples to show you how it works in real life.
Understanding Corporation Tax
Corporation tax is a tax levied on the taxable profit of limited companies.
In 2025, the corporation tax rate varies depending on your profits:
- 19% for profits up to £50,000 (the Small Profits Rate).
- 25% for profits over £250,000 (the Main Rate).
- A sliding scale with Marginal Relief for profits between £50,000 and £250,000.
Your taxable profit is calculated by subtracting allowable expenses and reliefs from your total income. Keeping accurate records is crucial. Miss a deductible expense, and you could overstate your profits, meaning you’ll pay corporation tax on more than you should.
Claim All Allowable Expenses
One of the simplest ways to reduce your corporation tax is by claiming all your deductible business expenses. These are costs you incur wholly and exclusively for your business.
Business expenses reduce your taxable profits. Common examples include:
- Salaries and wages (including your salary)
- Travel costs (train tickets, mileage)
- Office expenses (rent, stationery, utilities)
- Professional fees (accountant or legal advice)
Example: If your company has profits of £40,000, and you claim £5,000 of business expenses, your taxable profit reduces to £35,000. This results in £950 of tax savings (19% of £5,000).
Capital Allowances
If you buy equipment for your business, like computers, machinery, or office furniture, you can claim capital allowances and deduct the cost from your profits.
- Annual Investment Allowance (AIA): Up to £1 million per year on qualifying assets like equipment or vans (not cars).
- Writing Down Allowances (WDA): For assets not covered by AIA, claim a percentage (e.g., 18%) each year.
Example: You buy £10,000 worth of computers. You can deduct the entire £10,000 from your profits using the AIA, saving you up to £2,500 in tax at 25%.
Benefit from Tax Relief
The UK government offers several tax relief schemes to encourage innovation and growth—perfect opportunities to reduce your corporation tax bill.
- R&D Tax Credits: If your business invests in research and development, you can claim enhanced deductions.
- Patent Box Scheme: Earn income from patented products? Pay just 10% tax on those profits instead of 25%.
- Creative Industry Reliefs: Theatre, film, or video game companies can claim extra deductions.
Example: A tech startup invests in developing a new app. Thanks to R&D relief, they can deduct significantly more than the actual development cost from their profit. This reduces their taxable profit and, in turn, lowers their corporation tax bill. Refer to HMRC’s guidance to check if you qualify.
Pension Contributions
Contributing to a pension scheme is a smart way to reduce your corporation tax while benefiting your team (or yourself as a director). Employer contributions are an allowable business expense, deductible from profits.
Example: You’re a director of a consultancy earning £40,000 in profit. You contribute £20,000 to your pension. Your taxable profit drops to £20,000, reducing your tax from £7,600 to £3,800.
Pay Yourself Efficiently (Salary and Dividends)
Balancing salary and dividends can reduce your overall tax:
- Salaries are tax-deductible for your company, reducing corporation tax.
- Dividends aren’t deductible but often result in lower personal taxes for directors.
Example: You are the director of a limited company. Pay yourself a small salary, and you can reduce your income tax and national insurance using your personal allowance. Take extra money as dividends as they are taxed at a lower rate.
Timing of Income and Expenses
Strategic timing can reduce your tax by shifting expenses or income between tax years. Bring forward big purchases to use annual allowances or delay income if you’re near a higher tax bracket.
Manage Losses Effectively
If your company makes a loss, you can offset it against profits from the previous year (getting a tax refund) or carry it forward to reduce future taxes.
Example: A loss of £10,000 this year can be carried back to last year’s profits, potentially securing a tax refund of up to £2,500.
Conclusion
Reducing your corporation tax is straightforward when you use these strategies. Always keep accurate records and consider seeking advice from a corporate tax specialist such as U&W to maximise your savings.
