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29 Oct 2025

A client wishes to apply income averaging for her performing income for the first time, starting with her 2022 tax return (2022–2025 returns are outstanding).

From 2016 to 2021, she had minimal performing income, and those returns did not include amounts at item 24Z since there was no tax liability and no expectation that her income would rise significantly.

I am now preparing her 2022 return and will disclose her special professional taxable income at item 24Z.

Could you please confirm how the ATO will calculate the averaging adjustment, given there is no prior 4-year average of special professional income and earlier years cannot be amended due to the expired amendment period?

Or does it mean that simply will be no averaging adjustment for 2022?

Thank you.

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1 replies
106 views
1 replies

All replies

RachelATO(Community Moderator)Community Moderator
3 Nov 2025

Hi @CTAccountant,


Your client’s first year of income averaging starts when their taxable professional income (TPI) exceeds $2,500. If they’re applying for the first time in 2022 and earlier years either had no TPI or fall outside the amendment period, 2022 will be treated as Year 1.


Only prior years within the amendment period where TPI exceeded $2,500 can be included in the averaging calculation. Earlier years can’t be amended to add special professional income if the amendment period has expired.


To apply averaging, make sure the special professional taxable income is correctly reported at item 24Z in the supplementary section of the 2022 return. You can also use these steps to help you work out your tax payable amount with income averaging.

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Income Averaging - First Year - How does ATO know average professional income? | ATO Community