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Ka ahatia i te mutunga o te tau tāke What happens at the end of the tax year


The tax year ends on 31 March.

We assess your end-of-year tax position using the information we hold about your income and the tax you've paid.

We send you one of these:

  • an income tax assessment
  • a request for more information – income tax assessment
  • a message to complete your individual tax return in myIR, or a tax pack.

You need to check your income tax assessment and tell us about any changes. If it is correct and you have no tax to pay you do not need to do anything else.

Otherwise, you need to tell us about other income you received and any expenses you want to claim.