Income and Corporation Taxes Act 1988

2 (1) A company shall for each of its accounting periods make, in accordance with this Schedule, returns to the collector of the relevant payments made by it in that period and of the income tax for which it is accountable in respect of those payments.

(2) A return shall be made for—

(a) each complete quarter falling within the accounting period, that is to say, each of the periods of three months ending with 31st March, 30th June, 30th September and 31st December which falls within that period;

(b) each part of the accounting period which is not a complete quarter and ends on the first (or only), or begins immediately after the last (or only), of those dates which falls within the accounting period;

(c) if none of those dates falls within the accounting period, the whole accounting period.

(3) A return for any period for which a return is required to be made under this paragraph shall be made within 14 days from the end of that period.