Under the Companies Act every company must prepare a formal set of accounts once a year. Normally, these accounts are for a period of 12 months ending on the official year-end of the company as recorded at Companies House (known as the ‘Accounting reference date’ or ARD).
The accounts must be in a specified format (as set out in the Companies Act) and are submitted to Companies House to put on public record. The accounts will include a profit and loss account and balance sheet and note to the accounts which support the information included in both documents. They are also submitted to HMRC in support of the Corporation Tax calculations and Corporation Tax return.
The normal deadline for statutory accounts filing at Companies House is 9 months after the year-end. For a 31 March 2016 year-end this will normally be 31 December 2016.
The deadline for the Corporation Tax payment is 9 months and one day after the year end so for a 31 March 2016 year-end, the Corporation Tax will be due on 1 January 2017.
The Corporation Tax return (CT600) that supports your payment is due 12 months after the year-end, which in this case would be 31 March 2017.