Keeping good records
You need to keep records about your tax to prove what you put on your tax return. In most cases, you need to keep all your tax records for five years, including receipts for anything you claim as a deduction.
When you lodge your tax return, we work out whether you've paid the right amount of tax and then send you a notice of assessment. A notice of assessment tells you the result of your tax return.
Records you need to keep
You need to keep records about your tax for five years. They prove what you put on your tax return. For example, you must keep receipts if you claim deductions.