Borrowing costs: capitalisation required for directly attributable costs to qualifying assets with prescribed allocation and cessation rules. Income Computation and Disclosure Standard IX requires capitalisation of borrowing costs directly attributable to acquisition, construction or production of qualifying assets, including specified tangible and intangible assets and long gestation inventories. Specific borrowings capitalise actual costs; other borrowings use a prescribed allocation formula based on average qualifying asset cost and average total assets excluding assets funded by specific borrowings. Capitalisation commences on borrowing or utilisation and ceases when assets are first used or inventories are ready for sale; transitional and disclosure requirements apply.