All Tools

UK Corporation Tax Calculator

Calculate corporation tax with automatic marginal relief for profits between £50,000 and £250,000.

Company Details

Taxable profits before corporation tax
Rate Guide:
≤ £50,000 profits → 19% (Small Profits Rate)
£50,001–£249,999 → Marginal relief (19%–25%)
≥ £250,000 profits → 25% (Main Rate)
Enter company profits

Enter your taxable profits and click Calculate Corporation Tax.