If your company is liable for Corporation tax, you must calculate how much Corporation tax is payable on those profits.
This information must be reported to HMRC and accounts and tax computations must be submitted to HMRC in support of the return.
There are strict penalties for filing late returns and interest is charged on tax paid late, so it is important that the deadlines, which are determined by your company’s annual accounting date, are adhered to.
The rate of tax charged depends on the taxable profit figure of the company.
For full information on this year's (2019/20) tax rates.