For a specified year that is not a revaluation year
3.—(1) If a specified year is not a revaluation year, a billing authority’s baseline amount in respect of a designated area for the specified year is the amount calculated under sub-paragraph (2) or (3).
(2) For the specified year beginning with 1st April 2018, a billing authority’s baseline amount is calculated in accordance with the formula—
where—
J is the amount provided in column 4 of the table in Schedule 1 in relation to the designated area;
K1 is the small business non-domestic rating multiplier for the preceding year; and
K2 is the small business non-domestic rating multiplier for the specified year.
(3) For a subsequent specified year which is not a revaluation year, the baseline amount is calculated in accordance with the formula—
where—
L is the amount calculated under sub-paragraph (2), this sub-paragraph or paragraph 4(1) for the preceding year;
M1 is the small business non-domestic rating multiplier for the preceding year; and
M2 is the small business non-domestic rating multiplier for the specified year.