4. In Regulation 11 (prescribed equivalents)—
(a)in paragraph (2A)—
(i)in sub-paragraph (a) for “£3,489” substitute “£3,532”; and
(ii)in sub-paragraph (b) for “£41,865” substitute “£42,385”;
(b)in paragraph (3)—
(i)in sub-paragraph (a) for “£663” substitute “£672”; and
(ii)in sub-paragraph (b) for “£7,956” substitute “£8,060”;
(c)in paragraph (3A)—
(i)in sub-paragraph (a) for “£663” substitute “£676”; and
(ii)in sub-paragraph (b) for “£7,956” substitute “£8,112”;
(d)after paragraph (3A) insert—
“(3B) Subject to paragraphs (4) and (5), the prescribed equivalents of the upper secondary threshold for secondary Class 1 contributions in relation to the Under 21 age group shall be—
(a)where the earnings period is a month, £3,532;
(b)where the earnings period is a year, £42,385;
(c)where the earnings period is a multiple of a week, the amount calculated by dividing the figure in sub-paragraph (b) by 52 and multiplying the result by the corresponding multiple;
(d)where the earnings period is a multiple of a month, the amount calculated by dividing the figure in sub-paragraph (b) by 12 and multiplying the result by the corresponding multiple;
(e)in any other case, the amount calculated by dividing the figure in sub-paragraph (b) by 365 and multiplying the result by the number of days in the earnings period concerned.”;
(e)in paragraph (4) for “and paragraph (3A)(c) and (d)” substitute “, paragraph (3A)(c) and (d) and paragraph (3B)(c) and (d)”; and
(f)in paragraph (5) for “and paragraph (3A)(e)” substitute “, paragraph (3A)(e) and paragraph (3B)(e)”.