Income tax Dates
MAR 31Final date for ratio option provisional tax applications.
APR 7End-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 7Provisional tax payments are due if you have a March balance date and use the standard, estimation or ratio options.
You need to tell us about any missing or incorrect information on your income tax assessment.
Log in to myIR
Go to the right period
Click on the 'Income tax' link on the account tile. Then select the 'Periods' tab and select the right period (tax year).
Amend your return
Click 'File or amend return' under the 'I want to...' menu. Then select 'Amend a return' under the 'I want to...' menu.
What happens next
We'll send you a new income tax assessment. This shows if you:
- are due a refund
- have tax to pay
- have no tax to pay and are not due a refund.
You may be asked to provide proof of changes to your income or expenses.
Make sure we have your correct contact, bank account and income information. You can update these any time during the tax year. The easiest way is in myIR.