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Amending your tax return

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E-tax cannot be used to amend your tax return

You cannot use e-tax to amend your tax return once it has been lodged.

If you realise that you did not include something on your tax return that you should have or there is some other error on your tax return, you need to correct it as soon as possible by requesting an amendment.

Requesting an amendment

To request an amendment, write a letter to the Tax Office.

In your letter, provide your:

  • name
  • address
  • daytime telephone number, and
  • tax file number.

The letter should also provide information about what you want to amend. Include:

  • the year shown on the tax return you want to amend – for example, 2009
  • the tax return item number and description affected by the change
  • the amount of income or deductions to be added or taken away, if relevant
  • the amount of tax offsets to be increased or decreased, if relevant
  • the relevant claim type code, if applicable to the item being changed
  • an explanation of why you made the mistake
  • a signed and dated declaration – ‘I declare that all the information I have given in this letter, including any attachments, is true and correct.’ – and
  • any additional information, if applicable to the item being changed.

Post your letter and any attachments to:

Australian Taxation Office
GPO Box 5056
SYDNEY NSW 2001

Keep a copy of the letter for your records.

Attention icon

Do not send another tax return unless we ask you to.

If, after lodging your tax return, you voluntarily tell us that you made a mistake and an amendment will result in you paying more tax, the amount of penalty that may otherwise have been imposed will, in most cases, be reduced.

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Last Modified: Tuesday, 30 June 2009

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