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  • How to request an amendment to your tax return

    Use the information to find out how to lodge an amendment to your tax return to fix a mistake or include additional information.

    You can request an amendment to your tax return:

    Individuals and sole traders can request an amendment to their income tax return if

    • they have made a mistake
    • forgotten to include something
    • had a change in circumstance after lodging.

    We don't charge a fee if you request an amendment and you don't have to send in another tax return unless we ask you to.

    If submitting a form or letter, you should keep a copy of your request for your records. If using our online services, you'll be able to access your details at any time.

    You can check our website if you are unsure if you are reporting the correct information, including:

    Before you lodge your amendment, check the time limits. See Time limits on tax return amendments. If you are outside this time you may need to lodge and objection instead.

    Online through myGov

    Submitting an online amendment via myGov is the fastest way for us to process your amendment request.

    An online amendment takes about 20 days to process.

    Regardless of how you lodged your original tax return, you can request an amendment of your assessment online.

    All you need is a myGov account linked to the ATO to access our online services.

    To lodge your amendment online:

    ■ sign in to your myGov account

    ■ select ATO services

    ■ select Tax

    ■ then Lodgments

    ■ then Income tax

    ■ then History.

    Completing a paper amendment form

    If you can't request an amendment online, you can send us the paper form:

    It takes up to 50 business days to process requests made in writing.

    If you complete the form yourself, you must sign the paper form.

    If you use a tax agent and they complete the paper form for you, the tax agent can sign for form. They must have a declaration from you, that the information you gave them was true and correct.

    If your amendment request is a letter, you or your representative should send it, including all attachments, to us:

    • by post to
      Australian Taxation Office
      PO Box 3004
      PENRITH  NSW  2740
    • by fax to 1300 730 239.

    Through a registered tax agent

    If you use a registered tax agent, you can ask them to complete an amendment to your tax return on your behalf. Your tax agent can send us the paper form:

    It takes up to 50 business days to process requests made in writing.

    By sending a letter

    If you choose not to amend your return online or use the paper amendment form, you can write us a letter.

    It takes up to 50 business days to process requests made in writing.

    Your letter must include all relevant information, including copies of any documents that support your request as well as the following information:

    • your tax file number (TFN)
    • your full name
    • your postal address
    • a daytime phone number (if convenient) or mobile number
    • your bank account details (in case there is an amount refund)
    • the year shown on the tax return you want to amend – for example, 2020
    • the item number your change relates to and description
    • the amount of income or deductions you're adding or subtracting and the correct total amount (if relevant)
    • the amount of tax offsets you're adding or subtracting and the correct total amount (if relevant)
    • the reason for the change or an explanation of how you made the mistake
    • your signature and dated declaration as follows:
      'I declare that:
      All the information I have given in this letter, including any attachments, is true and correct
      I have the necessary receipts or other records to support my claims for amendment'.

    You or your representative should send it, including all attachments, to us:

    • by post to
      Australian Taxation Office
      PO Box 3004
      PENRITH  NSW  2740
    • by fax to 1300 730 239.

    See also:

    Last modified: 18 Mar 2021QC 65091