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  • How to calculate a capital loss



    This information may not apply to the current year. Check the content carefully to ensure it is applicable to your circumstances.

    End of attention

    Example 14: Calculating a capital loss

    Antonio acquired a new income-producing asset on 28 September 1999 for $100,000, including stamp duty and legal costs. He sold it for $90,000 in November 2020. During the period he owned it, he was allowed capital works deductions of $7,500. Antonio works out his capital loss as follows:

    Cost base


    less capital works deductions


    Reduced cost base


    less capital proceeds


    Capital loss



    End of example


    Example 15: Calculating a capital loss

    In July 1996, Chandra bought 800 shares at $3 per share. He incurred brokerage and stamp duty of $100. In December 2020, Chandra sold all 800 shares for $2.50 per share. He incurred brokerage of $75. He made a capital loss, calculated as follows:

    Calculation of reduced cost base

    July 1996

    Purchase price


    July 1996

    Brokerage and stamp duty


    December 2020



    Reduced cost base



    Calculation of capital loss

    Reduced cost base


    Capital proceeds (800 × $2.50)


    Capital loss



    End of example

    However, the reduced cost base is not relevant for some types of CGT events. In these cases, see appendix 1 for the amounts to use for the particular CGT event.

    Reduced cost base

    You cannot index a reduced cost base.

    Last modified: 20 Jul 2021QC 64895