Corporation Tax Calculator

Estimate your corporation tax liability for 2025 with our free, HMRC-compliant online tool.

Corporation Tax Calculator (2024/25)

Follow these steps to estimate your corporation tax liability for 2024/25:

Enter your company's gross profit in pounds (£).

Input allowable expenses incurred by the business.

Specify any capital allowances for equipment or assets.

Include R&D tax relief if applicable.

Click "Calculate" to view your tax liability and reliefs.

Get instant estimates for your corporation tax based on HMRC guidelines for April 2025.

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Calculates taxable profit based on HMRC guidelines.

Applies correct tax rates (19% or 25%) for 2024/25.

Includes marginal relief for profits between £50,000 and £250,000.

Accounts for allowable expenses and capital allowances.

Supports R&D tax relief calculations.

Responsive design for seamless use on any device.

Corporation tax is a tax on the profits of UK companies, calculated based on HMRC rates (19% or 25% for 2024/25).

Marginal relief reduces the tax rate for companies with profits between £50,000 and £250,000, easing the transition from 19% to 25%.

Allowable expenses are business costs (e.g., salaries, rent) that can be deducted from profits to reduce taxable income.

R&D tax relief allows companies to deduct qualifying research and development costs from taxable profits, reducing their tax liability.