By BMTQS | www.bmtqs.com.au | Submitted May 2009 The ATO specifies an individual effective life for each plant and equipment item. Consequently, our reports show the estimated cost for each item and its contribution to the depreciation total per financial year. The original building structure and capital improvements, or Division 43, are all written off at the same rate (unless building works have been completed over different legislation periods). Therefore individual costs for these items aren’t expressed in the report. If required by the ATO, the estimates for Division 43 can be justified.