# The Non-Domestic Rating (Chargeable Amounts) (England) Regulations 1999, Regulation 24: Appropriate fraction for central list hereditament


(1) The appropriate fraction for a defined central list hereditament for a relevant year shall be found by applying the formula–
X100×Q .
(2) For the purposes of this regulation–
(a) where the notional chargeable amount of the hereditament for the relevant year exceeds the base liability for the hereditament for the year, then–
(i) for the relevant year beginning on 1st April 2000, X is 112.5;
(ii) for the relevant year beginning on 1st April 2001, X is 115;
(iii) for the relevant years beginning on 1st April 2002, 2003 and 2004, X is 117.5;
(b) where the notional chargeable amount for the hereditament for the relevant year does not exceed the base liability for the year, then–
(i) for the relevant financial years beginning on 1st April 2000 and 2001, X is 97.5;
(ii) for the relevant financial year beginning on 1st April 2002, X is 95;
(iii) for the relevant financial year beginning on 1st April 2003, X is 92.5; and
(iv) for the relevant financial year beginning on 1st April 2004, X is 85.
(3) For the purposes of this regulation–
Q is the amount found by applying the formula–
RPI(1)RPI(2) where–
RPI(1) is the retail prices index for September of the financial year preceding the relevant year concerned;
RPI(2) is the retail prices index for September of the financial year which precedes the year preceding the relevant year concerned; and
Q shall, if not a whole number, be calculated to 3 decimal places only–
(i) adding one thousandth where (apart from this sub-paragraph) there would be more than ten-thousandths, and
(ii) ignoring the ten-thousandths where (apart from this sub-paragraph) there would be 5, or less than 5, ten-thousandths.

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Source: https://www.legislation.gov.uk/ukdsi/1999/0110856066/regulation/24 (the official version)
Page: https://openlegislation.uk/draft-non-domestic-rating-chargeable-amounts-england-regulations-1999/regulation-24
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.