A-Z index

Tax return amendments

Correct (amend) an income tax return
If you've made a mistake on an income tax return you've already lodged, or you think we've made a mistake processing it, you can request an amendment.
Correct a mistake or amend a return
Dispute or object to an ATO decision
Find out how to disagree with our decisions, fix mistakes we have made, fix mistakes you have made, tell us about previously undisclosed income, incorrectly claimed deductions or misleading statements you have made, and ask for penalties or interest charges.
Objections and amendments
Contact us as soon as possible if you want to object to a decision or amend a return.
Tracking your refund or fixing a mistake
Once you’ve lodged your tax return, we will issue you a notice of assessment. This tells you whether you're entitled to a refund or that you have a tax debt to pay. If you think you made a mistake on your tax return, you can lodge an amended return online.