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Tax Return Calculator Australia
Estimate an Australian tax refund or tax bill by comparing tax withheld with income, deductions, HELP, Medicare and offsets.
Current Australian tax year
No account needed
Plain-English assumptions
Tax back calculator
Estimate your tax refund or bill
Taxable income
$83,500
Income tax
$15,570
Medicare + HELP
$1,670
Final tax after offsets
$17,240
What this estimate is doing
Starts with your total income
Employment income plus any other taxable income you add.
Subtracts deductions
This lowers the taxable income used for the estimate.
Calculates final tax
Income tax, Medicare levy and HELP are applied for the selected year.
Compares with tax withheld
That tells you whether you may get money back or still owe tax.
Before you estimate a refund
A tax return is more than just your salary.
The biggest gaps usually come from tax withheld, deductible expenses, offsets, second income, private health, HELP debt, and whether the salary figure you are using is only part of the story.
Tax withheld on your payslips
Work-related deductions
Bank interest or side income
Study debt or Medicare settings
What usually changes the refund
Tax withheld
Even a good salary estimate is not enough if the withholding across the year was unusual or incomplete.
Deductions
Work expenses, self-education costs and donations can change the final result if they are valid and properly recorded.
Extra income
Bank interest, side gigs and investment income often explain why a simple salary-only estimate feels wrong.
Offsets
Tax offsets can reduce the final bill, so a good refund estimate should let you include them.
Gather these first
PAYG summary or final income statement
Tax withheld for the year
Deduction records
Bank interest and side income
Private health insurance details
HELP debt or Medicare-related settings
Any tax offsets you expect to claim
Understand a refund estimate
A tax refund is the difference between tax paid and the final estimate
A refund is not a bonus rate attached to deductions. The useful comparison is tax already withheld across the year versus the estimated final tax after supported income, deductions, Medicare and HELP settings.
Tax withheld
The tax your employer or payer has already sent to the ATO.
Estimated final tax
The calculator’s annual estimate after supported inputs and assumptions.
Estimated refund
When withheld tax is higher than the estimated final amount.
Estimated amount owing
When withheld tax is lower than the estimated final amount.
Worked example
Why a deduction is not refunded dollar for dollar
A $1,000 deductible expense generally reduces taxable income by $1,000; it does not normally create a $1,000 refund. The tax effect depends on the marginal rate applying to that slice of income. Keep receipts and only include deductions you can support.
Check before deciding
- Use the total tax-withheld figure from income statements or payslips.
- Include all taxable income, not only the main job.
- Keep evidence for deductions and do not estimate private expenses as work costs.
- Expect differences if offsets, private health, investments or other schedules apply.
How to use this page
Use this tax back calculator to check whether the tax already withheld across the year looks above or below your final estimated tax.
Enter income, tax withheld, deductions and any simple offsets. The result is a planning estimate, not a lodged return.
When this calculator is useful
checking tax return before you accept a job offer
turning a big annual number into weekly, fortnightly and monthly cashflow
spotting whether HELP debt, super wording or deductions may change the result
What this estimate includes
Australian financial-year tax brackets
Standard Medicare levy assumption
HELP repayment toggle
Employer super shown separately
Annual, monthly, fortnightly and weekly views
Plain-English assumptions and trace
Before you rely on the number
- Start with your gross pay before tax.
- Check whether the number includes employer super.
- Switch on HELP only if compulsory study debt repayments apply.
- Compare the annual result with weekly, fortnightly and monthly views.
- Use the methodology page if you want to see the calculation order.
Frequently asked questions
Can this estimate my refund today?
Yes, as a planning estimate. The result still depends on using the right tax withheld, deductions, offsets and income details.
Will this exactly match my lodged tax return?
Not always. It is designed for a clear estimate, not every edge case, private ruling, or tax return schedule.