Borrowing costs capitalization rules: when and how borrowing costs must be capitalized, suspended, or disclosed in financial statements. Borrowing costs directly attributable to acquisition, construction or production of a qualifying asset must be capitalised when probable future economic benefits will flow and costs can be measured reliably; other borrowing costs are expensed. Specific borrowings: capitalise actual borrowing costs less income on temporary investments. General borrowings: apply a capitalisation rate equal to the weighted average borrowing cost on outstanding general borrowings (excluding specific borrowings) to qualifying expenditure. Capitalisation begins when expenditure, borrowing costs and preparatory activities are in progress, is suspended during extended interruptions, and ceases when substantially all preparatory activities are complete.