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wall-e(Newbie)Newbie
18 Oct 2025

Hi,


How do I enter my PAG withholding amount into the form for submitting the PAYG Installments page?


Currently, I estimate my taxable income for this FY to be ~$73000, which makes the tax amount ~$12688. And the quarter amount should be ~$3172.


I have a mixed source of income, and ATO already has ~$3500 PAYG withheld tax.


On the installment form, I don't agree with the suggested ~$5000 payment, so I click the "Vary installment" option, it asks me for "T8: Estimated tax for year" which I entered as $12688, and I entered $0 for "T9: Varied amount payable for period".

But when I press submit, it automatically changes the T9 value to $3172, the blue text underneath says I owe ATO $3172.


But ATO should have already ~$3500 of tax withheld from me.


How should I enter the form so I don't have to extra installment?


Thanks

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Taxduck(Taxicorn)Taxicorn
18 Oct 2025

"T8: Estimated tax for the year"

That is the tax you would pay on your instalment income only (business or investment income). Not all your income

Instalment income | Australian Taxation Office

Also see link on varying instalments

How to vary your PAYG instalments | Australian Taxation Office

See example 1 as a guide.

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PAYG Instalment with PAYGW | ATO Community