Income tax Dates
FEB 7End-of-year income tax and Working for Families bills are due, unless you have an extension of time to file your income tax return.
FEB 28Provisional tax payments are due if you have a March balance date and use the ratio option.
MAR 31Income tax returns are due if you have an extension of time
There are special rules for whether company losses can be carried forward to a new year or transferred to another company.
Check the rules for your company's situation.