PART 2Chargeable amounts
Base liability for years subsequent to 2017 -18
9.—(1) Subject to paragraph (2), the base liability for a defined hereditament for a relevant year beginning after the first relevant year (“the year concerned”) is found by applying the formula—
where—
BL is the base liability for the hereditament for the relevant year immediately preceding the year concerned, and
AF is the appropriate fraction, as found in accordance with regulation 10, for the relevant year immediately preceding the year concerned.
(2) For a defined hereditament to which Schedule 2 (splits and mergers) applies, paragraphs 8 and 9 of that Schedule have effect for finding the base liability.