Corporation Tax Calculator
*Calculated using the Main Rate (25%) and Small Profits Rate (19%) with Marginal Relief.
New 2024/25 Rates
Automatically applies 19% or 25% rates.
Marginal Relief
Calculates complex relief for profits between £50k - £250k.
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UK Corporation Tax Rates 2024/25 Explained
What is the current Corporation Tax rate?
As of April 2023, the main rate of Corporation Tax increased to 25% for companies with profits over £250,000. However, for small companies with profits of £50,000 or less, the rate remains at 19% (known as the ‘Small Profits Rate’).
What if my profit is between £50k and £250k?
If your profit falls in this range, you pay the main rate of 25%, but you can claim Marginal Relief. This relief gradually reduces your effective tax rate, bridging the gap between 19% and 25%. Our calculator above automatically works this out for you to ensure you don’t pay too much.