Income tax Dates
Follow these steps to fix a mistake in an IR3 return you've already filed.
In myIR, select your return
Select the 'Returns' tab then 'View or amend return' next to the return you want to change.
Select 'Amend return'
This is under ‘I want to’ on the right side of the page. You’ll then see details of the return you originally filed.
Fix the mistake
Go through your return. Amend the return to show the right details, tell us why you amended it, then resubmit your return.
Log in to myIR
You can call us and ask us to fix your mistake.
What happens next
We process your corrected return and send you a notice of assessment showing any refund you are due or tax to pay. We send the assessment to you within 10 weeks.
Your responsibilities
You need to keep these records and provide them if we request them:
- the return period the mistake occurred in
- the amount involved
- the nature of the mistake
- the return period the correction was made.
Keep a copy of all returns that you send to us. This will help if you need to make changes to a return and support what you have done.
Last updated:
11 Jul 2023