s 380 When balancing adjustments are made
(1) A balancing adjustment is made if— (a) qualifying expenditure has been incurred, and (b) a balancing event occurs in a chargeable period for which a person would (apart from this section) be entitled to a writing-down allowance. (2) A balancing adjustment is either a balancing allowance or a balancing charge and is made for the chargeable period in which the balancing event occurs. (3) A balancing allowance or balancing charge is made to or on the person entitled to the relevant interest in relation to the qualifying expenditure immediately before the balancing event.