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  • Income tax estimator

    This calculator will help you work out your tax refund or debt estimate for the previous four years. It will estimate your tax payable and also calculate your:

    • Medicare levy
    • Medicare levy surcharge
    • Higher Education Loan Program (HELP) / Student Start-up Loan (SSL) / Trade Support Loan (TSL) repayment
    • Student Financial Supplement Scheme (SFSS) repayment
    • any tax offsets that may apply.

    It will take these, along with other tax credits into account when estimating your tax refund or debt.

    Information you will need:

    • total gross income payments you received
    • total amount of tax that was withheld
    • total amount of deductions to claim
    • your residency status for taxation purposes
    • details of your tax credits and any tax offsets you are entitled to claim.

    You may need additional information, depending on your circumstances and what you choose to calculate.

    What's new for 2018-19

    You may be eligible for a new low and middle income tax offset if:

    • you are an Australian resident for income tax purposes, and
    • your taxable income is in the appropriate income range.

    The offset does not reduce your Medicare levy, but it reduces the income tax you pay, even down to zero.

    You do not need to claim this offset; we will work it out for you.

    For more information, see Low and middle income earners  

    From 1 July 2017, travel expenses relating to a residential investment property are not deductible. For more information, see Rental properties – travel expenses.

    You will not be able to use this calculator if you:

    • had a spouse for only part of the year
    • had an employment termination payment
    • had a lump sum payment in arrears
    • had a lump sum payment because you retired or finished working in a job
    • were under 18 years and had unearned income such as interest, dividends or other investment income
    • received credit for any tax paid by a trustee
    • had exempt foreign employment income
    • had an amount released under the First home super saver scheme
    • had income that was subject to averaging
    • had superannuation concessional contributions in excess of your concessional contributions cap.


    This calculator will give you an estimate only. All outcomes provided by this calculator are based on the information you provide at the time of calculation. You should use the outcomes as an estimate and for guidance purposes only.

    The actual amount of your tax payable or refund will depend on the information you provide in your tax return and on the balance of your account at the time of assessment.

    Next step:

    To help you work out your tax refund or debt for the 2016 income year through to and including the 2019 income year, you can use our Income tax estimatorThis link opens in a new window tool.

    The calculation will take between 15 and 25 minutes to complete.

    Simple tax calculations

    Use the Simple tax calculator if you don't want or need a detailed calculation.

    Last modified: 27 Jun 2019QC 16693