Income tax Dates
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FEB 9End-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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MAR 2AIM instalments are due if you have a March balance date.
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MAR 2Provisional tax payments are due if you have a March balance date and use the ratio option.
If you are not a provisional taxpayer but expect your residual income tax (RIT) will be more than $5,000, you may choose to be a provisional taxpayer. If you want to change the normal start date for interest, you would also need to estimate your provisional tax for that year.
Electing to be a provisional tax payer
If you are filing by paper, attach a letter to the return. If you are filing in myIR, select that you elect to be a provisional taxpayer when you file your return.
To become a provisional taxpayer, you will need to:
- have paid at least $5,000 by the final instalment date (7 May for most people)
- have been reasonably sure, on the day you made the 1st payment, that you would be liable to pay provisional tax for the year
- send your request to be a provisional taxpayer at the same time as you file that year's income tax return.
Last updated:
09 Sep 2025