# The Non-Domestic Rating (Chargeable Amounts) (Wales) Regulations 2025, Regulation 5: Notional chargeable amount


(1) Except where paragraph (2) applies, the NCA for a defined hereditament is the chargeable amount for 1 April 2026 calculated in accordance with section 43, 45 or 54 of the Act as appropriate, multiplied by 365.
(2) Where, for a day after 1 April 2026, the chargeable amount for a defined hereditament calculated in accordance with section 43, 45 or 54 of the Act is lower than the NCA, paragraph (1) has effect as regards the defined hereditament except that—
(a) for “1 April 2026” substitute “the day on which the change to the chargeable amount has effect”, and
(b) for “365” substitute “the number of days in the financial year within which that day falls”.

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Source: https://www.legislation.gov.uk/wsi/2025/1371/regulation/5 (the official version)
Page: https://openlegislation.uk/non-domestic-rating-chargeable-amounts-wales-regulations-2025/regulation-5
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.