Tax return · Correction workflow
How to Amend a Tax Return Australia
Correct an already lodged return through the ATO amendment process — do not submit a second original return.
myGov workflowRecord checklistCorrect-not-duplicate
01
Before you amend
Identify the exact label that is wrong and retain the source document or calculation supporting the corrected amount. If pre-fill information is wrong, contact the provider where appropriate.
02
Online amendment steps
- Sign in to myGov and open the linked ATO service.
- Open the relevant income-year tax return after it is processed.
- Choose the amendment option and change only the affected labels.
- Review the declaration, submit and save the receipt.
- Read the amended notice of assessment when issued.
03
What happens after submission
An amendment can increase a refund, reduce an amount owing, create a new amount owing or leave the result unchanged. Interest and payment timing depend on the account outcome.
Frequently asked questions
Should I lodge another tax return?
No. Use the amendment process for an already lodged income year.
Can an amendment reduce my refund?
Yes. Correcting income, deductions, offsets or repayments can move the assessment in either direction.
Do I need evidence?
Keep records that substantiate the corrected figures under the applicable ATO record-keeping rules.
Tax Accuracy & Sources
General workflow only. Follow the current ATO amendment instructions, time limits and evidence requirements for your circumstances.