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How self-assessment affects you

Last updated 7 April 2020

Self-assessment means the Tax Office uses the information you give on your tax return to work out your refund or tax debt. You are required by law to make sure you have shown all your assessable income and claimed only the deductions and tax offsets to which you are entitled. The Tax Office does not take any responsibility for checking the accuracy of the details you provide in your tax return. However, at a later date the Tax Office may examine the details contained in your tax return more thoroughly by reviewing specific parts, or by conducting an audit on your tax affairs.

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