Donations and koha for businesses

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Income tax Dates

AUG 28

AIM instalments are due if you have a March balance date.
AUG 28

Provisional tax payments are due if you have a March balance date and use the standard, estimation or ratio options.
SEP 29

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

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.

Last updated: 30 Jul 2025