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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.

Groups of New Zealand companies can choose to form an imputation group if they meet certain criteria. This allows some wholly owned groups of Australian and/or New Zealand companies to group for imputation purposes only.

Consolidated groups can choose to become part of an imputation group, but only if the entire consolidation group join.

Trans-Tasman imputation groups

Groups with both Australian and New Zealand members are known as Trans-Tasman imputation groups (TTIGs). 

Any New Zealand companies within a Trans-Tasman imputation group will need to keep a separate 'resident imputation subgroup' account. This account will have different accounting transactions to the Trans-Tasman imputation group. 

How imputation groups work

Groups of companies who want to become an imputation group send us a completed form. The imputation group applies from the start of the income year that we received the form in.

All companies in the imputation group will be jointly and severally liable for any further unpaid income tax, civil penalties and interest.

Groups will be allocated a group representative IRD number for yearly imputation returns to be filed under. Group members, where required, will still need to file their own income tax returns and meet all other tax obligations as normal.

Nominated companies

The group will need to choose a 'nominated company' who will be the point of contact and have responsibility for return filing.

For Trans-Tasman imputation groups, the nominated company must be a New Zealand resident.

The company will also be responsible for keeping the 'resident imputation subgroup account' and filing its imputation return if the account goes into debit at the end of the imputation year.