Tax and Accounting Terminology

Corporation Tax

Also known as: Company Tax

Definition

Corporation Tax is a UK tax charged on the taxable profits of companies and certain other organisations, according to the rules applying to them.
Author:
Sorbus Finance
Reviewed by:
Arran Turner, 11 November 2026
Published:

How corporation tax works

Taxable profit is calculated using tax rules and adjustments, not simply the accounting profit figure. Accounting periods, associated companies, reliefs and the nature of income or expenditure can affect the calculation and deadlines.

Practical UK business example

A company’s accountant adjusts reported profit for non-deductible costs and available allowances before calculating the tax liability and planning the payment.

Illustrative example only; not a finance quotation or a client case study.

Why it matters

Forecasting the liability helps avoid treating cash reserved for tax as surplus working capital.

Limitations and common misconceptions

A finance payment is not automatically deductible in full. Loan capital, interest, hire purchase and leases can have different consequences, and rates or reliefs should be checked against current HMRC guidance.

Discuss business borrowing to discuss how the structure relates to your business.

Further reading from Sorbus Finance

References

  1. GOV.UK: company and accounting records
  2. GOV.UK: capital allowances

This definition is general information for UK businesses, not personal advice. Lender criteria and product terms vary. Sorbus Finance is a broker, not a lender.

Related finance resources (1)
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