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End of tax year: know what to do

The tax year is from 1 April to 31 March. We’re busy working out if you’ve paid the right amount of tax, if you have tax to pay, or if you're due a refund.

Most income tax assessments have been sent out but will continue into July. We'll also let you know if we need more information, so you don’t need to contact us before you receive your assessment.

Tax bills

Common reasons you might receive a tax bill include: 

  • being on an incorrect tax code
  • having multiple incomes and not using the secondary tax code correctly 
  • using the wrong PIR rate for investments
  • earning other income while receiving paid parental leave payments.

You can find out more about tax bills and ways to avoid them.

Refunds and tax bills

Receive Working for Families payments?

If you receive Working for Families payments, we sent most assessments out in June, however, if we need more information it may take until 31 July. Again, there’s no need to contact us before then.

Timelines at the end of the tax year

Log in to myIR and check your details

Check and update your details in myIR to help avoid delays.

Update my details

Issues with logging into myIR

Find out when you'll hear from us based on your situation

Last updated: 01 Jul 2026
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