Income Tax Assessment Act 1997
Capital works are taken to begin when the first step in the construction phase starts. For example, the pouring of foundations or sinking of pilings for a building.
Capital works begun after 15 September 1987 are taken to have begun before 16 September 1987 in certain circumstances. See section 43-220 .
The time when capital works begin is relevant for determining whether the capital works qualify for deduction, the use to which those works must be put, the rate of deduction and the calculation mechanism used. However, the time when capital works begin does not limit what qualifies as construction expenditure.