# The Non-Domestic Rating (Renewable Energy Projects) (Amendment) Regulations 2026, Regulation 9: Amendment of regulation 18


In regulation 18(1) (calculation of the amount to be disregarded: class E)—
(a) for the formula which appears immediately after the opening words substitute—
“”;
( E − ( N − P ) ) × ( Q / H ) × R
(b) after the definition of “H” insert—
““R” is—
(a) for a relevant year ending on or before 31st March 2026, 1;
(b) for a relevant year beginning on or after 1st April 2026, the relevant multiplier ratio in respect of the hereditament for the day.”.

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Source: https://www.legislation.gov.uk/uksi/2026/240/regulation/9 (the official version)
Page: https://openlegislation.uk/non-domestic-rating-renewable-energy-projects-amendment-regulations-2026/regulation-9
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.