16(1)For the purposes of the threshold test in paragraph 11(2), the “relevant period” in relation to an uncertain amount included in a relevant return is—
(a)where the relevant return is a company tax return, the period for which the return is made (see paragraph 5 of Schedule 18 to FA 1998);
(b)where the relevant return is a partnership return, the financial year for which the return is delivered to HMRC;
(c)where the relevant return is a PAYE return, the period corresponding to the length of the financial year for which the return is delivered to HMRC, ending with the last day of the last period for which a PAYE return is required to be made that falls wholly within that financial year;
(d)where the relevant return is a VAT return, the period corresponding to the length of the financial year for which the return is delivered to HMRC, ending with the last day of the last prescribed accounting period falling wholly within that financial year.
(2)In sub-paragraph (1)(d), “prescribed accounting period” has the meaning given by section 25(1) of VATA 1994.