For the year ended 31 March 2013, E-Commerce plc had augmented profits of £1,360,000, and has forecast that its augmented profits for the year ended 31 March 2015 will exceed £2,000,000.

E-Commerce plc does not have any associated companies.

Required:
(ii) Explain why E-Commerce plc will not have been required to make quarterly instalment payments in respect of its corporation tax liability for the year ended 31 March 2014, but will have to do so for the year ended 31 March 2015. (3 marks)