Donations and koha for businesses

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Income tax Dates

JAN 28

AIM instalments are due if you file GST monthly and have a March balance date.
FEB 9

End-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.
MAR 2

Provisional tax payments are due if you have a March balance date and use the ratio option.

All Income tax dates

Find out about paying income tax when your business gets donations, gifts or koha, and how to treat voluntary payments you make to others.

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Last updated: 30 Jul 2025