Income tax Dates
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JAN 28AIM instalments are due if you file GST monthly and have a March balance date.
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FEB 7End-of-year income tax and Working for Families bills are due, unless your tax agent has an extension of time to file your income tax return.
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FEB 28Provisional tax payments are due if you have a March balance date and use the ratio option.
We work out your ratio percentage
Contact us to request a ratio percentage.
We'll divide your residual income tax (RIT) for the last tax year by your total GST-taxable supplies for the same year.
If last year's figures aren't available, we'll use the residual income tax and total GST-taxable figures from the previous year.
We'll decide your ratio percentage
We'll let you know what it is before your first provisional tax payment due date.
Work out your provisional tax for the year
Multiply the ratio percentage by your GST-taxable supplies for the previous 2 months.
File your return and make payment
You’ll make your provisional tax payments along with your GST returns. You can make payment or request a ratio percentage in myIR.
Log in to myIR
Last updated:
17 Jun 2021