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Corporation Tax Estimator

Estimate the Corporation Tax your company owes — including the small profits rate, the main rate, and the marginal relief in between that trips most people up.

£
Your profit chargeable to Corporation Tax (after allowable expenses and reliefs).
Advanced options
Companies under common control. Each one shrinks the £50k / £250k thresholds proportionally.
Leave at 365 for a standard 12-month year. Shorter periods reduce the thresholds pro-rata.
Enter your profit to estimate your Corporation Tax