What expenses can reduce corporation tax?

Salaries, pension contributions, allowable business expenses, capital allowances, and R&D relief can all reduce your taxable profit.

Corporation Tax Calculator – 2025

Calculate corporation tax on company profits including marginal relief for profits between £50,000 and £250,000. updated for 2025.

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Annual Taxable Profit ($)

From April 2023: 19% for profits up to £50,000, 25% for profits over £250,000, with marginal relief tapering between the two thresholds.