(a) A company prepares a set of accounts for the year to 31 July 2023. When is the corporation tax liability for this period due for payment?

(b) A company prepares a set of accounts for the 18 months to 31 December 2023. When is the corporation tax liability for this period due for payment?

(c) A company has taxable total profits of £360,000 for the nine months to 30 November 2023. There are no dividends received. Calculate the corporation tax liability for this period and state the date on which this tax is due for payment.

Assume in all cases that the company is not required to pay by instalments.