360-250 Interaction with taxation of chargeable gains
Unlike plant and machinery allowances, where base cost is not reduced by the amount of retained allowances (except to restrict a loss), base cost will be reduced by the amount of SBA given.
Amendments are made to TCGA 1992 to give effect to that intention.
Consideration on certain disposals
Where a building or structure is sold, the consideration for the disposal is treated as increased by the amount of SBA allowance (including any contribution allowance) made in calculating the amount of any gain.