A calculation is required each tax year with respect to work that has been carried out but not yet completed by 30 June; this is particularly important if you are in the building and construction industry.  For example, where you have incurred substantial expenditure for materials or contractors in respect to a stage of construction (fixing) that is not completed. Be aware, in the case of an audit by the Australian Taxation Office, substantial expenditure claimed in the month of June is easily detected; don’t get caught out!  Need help, don’t hesitate to contact us.