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COVID-19 - Level 4 If you have been affected by COVID-19, we may be able to help. Find out more

Service update Some of our key services are currently unavailable while we make some improvements to our system. These will be back on 8am, 16 April. Find out more

Service update Some of our key services will be unavailable from 3pm, 9 April until 16 April for a system upgrade. Find out more

Income tax Dates

  • MAY 7
    Provisional tax payments are due if you have a March balance date and use the standard, estimation or ratio options.
  • JUN 28
    Provisional tax payments are due if you have a March balance date and use the ratio option.
  • JUL 7
    Income tax returns are due if you do not have an extension of time.

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.

My responsibilities

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.

 
Call us on 0800 775 247