How is taxable profit estimated?

The estimate starts with revenue, subtracts deductible expenses and carried losses, and adds tax adjustments.

Is the displayed rate final for every company?

No. Sector, ownership, company size, location, incentives, and minimum-tax rules can change the result.

United Kingdom Corporate Income Tax Calculator

Estimate taxable profit, corporate income tax, and profit after tax for United Kingdom with an adjustable rate.

Country

Reference rate25%

Country calculators

Published country models are starting points. Credits, local taxes, sector rules and loss eligibility may change your result.

Reference data: 2026

UK: confirm eligibility for the small-profits rate and marginal relief. Limits depend on period length and associated companies; qualifying distributions augment profit. Ring-fence and special regimes are excluded.

Calculation method

Flat-rate scenario

Select the rate applicable to the company type or sector, or adjust it manually.

Company revenue

Accounting expenses

Allowed loss deduction

Net tax adjustments (+ or −)

Enter permitted loss deductions after local limits. Signed adjustments reconcile accounting profit with taxable income.

Tax rate

Currency

Estimated corporate income tax

—

Accounting profit—

Adjusted profit—

Profit after tax—

Tax / positive accounting profit—

Tax is rounded half up to the currency minor unit. Accounting losses remain negative.

This estimate is not a tax return. Branch, withholding, capital-gains, payroll, and global minimum taxes are excluded unless stated. Rule and rate source.

United Kingdom tax data

The record contains a published rate, band, regional rule, or other model that can be used as a starting point.

Data statusModelled

Tax typeCorporate income tax

Reference period: 2026 · Published source ↗ Always verify local rules before making a tax decision.

Calculations stay on this page and are not saved or uploaded.

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