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  • How to work out total tax payable with income averaging



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

    End of attention

    You do not need to work out your total tax payable with income averaging. We will work it out from the amount at Z item 24 on your tax return. If you want to work it out for yourself, follow these steps.

    Step 1

    Add your ATPI to your taxable income that is not subject to income averaging - your taxable non-professional income. The total, called your 'other income', is taxed at normal rates.

    Step 2

    Subtract your ATPI from this year's TPI to get your above average special professional income. To work out the tax payable on this income:

    • to your other income, add one-fifth of your above average special professional income
    • work out the tax payable on this amount
    • subtract the tax payable on your 'other income', and
    • multiply the result by five.

    Step 3

    Add the tax on your other income and the tax on your above-average special professional income. The result is your total tax payable.

    For more information, phone the Business Infoline on 13 28 66.

    Example: Working out total tax payable with income averaging

    Kevin has a taxable income of $40,000, including assessable professional income of $33,000. He has deductions of $3,000 that reasonably relate to his assessable professional income - this amount does not include gifts - and he has no other deductions. His average TPI over the last four years was $6,250.

    Kevin's tax payable - before any Medicare levy is worked out - is $5,100.00. It would have been $6,000.00 - the tax on $40,000 - if income averaging had not been applied.

    The following steps show you how Kevin's tax payable has been worked out.


    Calculation element



    Assessable professional income






    TPI = (a) − (b)= $33,000 − $3,000


    Kevin transfers the amount at (c) to Z item 24 on his tax return (supplementary section) and, if he has not already included any of this amount at item 1, 2, 13,14 or 15 he also writes it at V item 24 on his tax return (supplementary section).


    Calculation element



    = one-quarter of TPI for the preceding four years - not including this income year



    Taxable non-professional income
    = amount of TAXABLE INCOME OR LOSS at $ on his tax return minus the amount shown at Z item 24 on his tax return (supplementary section)
    = $40,000 − $30,000



    Other income
    = (d) + (e)
    = $6,250 + $10,000



    Tax on other income above at ordinary rates



    Above-average special professional income
    = (c) − (d)
    = $30,000 − $6,250



    Tax on (other income plus one-fifth of above-average special professional income)
    = tax on (f) + 1 ÷ 5 (h)]
    = tax on ($16,250 + $4,750)
    = tax on $21,000



    Tax on above-average special professional income
    = [(i) − (g)] × 5
    = [$2,250.00 − $1,537.50] × 5



    Kevin's total tax payable
    = (g) + (j)
    = $1,537.50 + $3,562.50



    End of example
    Last modified: 07 Mar 2016QC 27954