Donations and koha for businesses

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Income tax Dates

MAR 31

Final date for ratio option provisional tax applications.
APR 7

End-of-year income tax and Working for Families bills are due if you have an extension of time to file your income tax return.
MAY 7

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

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