Australian Tax Back Calculator (Estimate)
Use this quick calculator to estimate whether you'll receive a tax refund or have tax to pay at EOFY. This tool is designed for Australian resident individual taxpayers using standard 2025–26 income tax brackets.
General information only. It does not include every rule (for example: HELP debt, Family Tax Benefit, private health loading, capital gains, business income, or complex offsets).
How this AUS tax back calculator works
This calculator estimates your end-of-year tax position using a straightforward approach:
- Start with your annual income.
- Subtract deductible expenses to estimate taxable income.
- Apply resident individual tax rates.
- Estimate Low Income Tax Offset (LITO) where applicable.
- Add Medicare levy (if selected).
- Subtract any additional offsets entered.
- Compare final tax liability to PAYG tax already withheld.
If your employer withheld more than your estimated final tax liability, you are likely due a refund. If they withheld less, you may have tax payable.
Australian resident tax brackets used (2025–26 estimate)
Resident marginal rates
- $0 – $18,200: Nil
- $18,201 – $45,000: 16%
- $45,001 – $135,000: 30%
- $135,001 – $190,000: 37%
- $190,001+: 45%
The calculator also includes a basic LITO estimate and a simplified Medicare levy estimate. Real outcomes can vary depending on your exact circumstances and ATO calculations.
What you should prepare before using a tax refund calculator
1) PAYG income statements
Check your income statement in myGov and make sure all employers have marked income as “tax ready”. Your withheld amount is one of the most important refund drivers.
2) Deduction records
Gather your receipts and logs for deductible expenses. Common examples include:
- Union fees and professional subscriptions
- Work-related travel and vehicle expenses (if eligible)
- Home office running expenses
- Self-education costs related to your current role
- Charitable donations to deductible gift recipients
3) Other offsets
If you are entitled to tax offsets, including them can materially change your estimated result. If unsure, leave this as zero for a conservative estimate.
Tips to improve your tax return accuracy
- Do not guess deductions without evidence.
- Separate reimbursed expenses from unreimbursed expenses.
- Double-check annual income and withheld tax values.
- Review private health insurance and Medicare details.
- If you have HELP debt or multiple jobs, use a buffer for possible payable tax.
Example: quick refund estimate
Suppose your annual income is $85,000, deductions are $1,500, and tax withheld is $19,000. After applying tax rates, a simple LITO estimate, and Medicare levy, your estimated liability may come in below withheld tax, producing a refund estimate.
The final ATO result can differ due to factors not captured here, but the estimate helps with planning your budget and avoiding surprises.
Frequently asked questions
Is this an official ATO calculator?
No. It is an educational estimate tool designed to provide a quick planning figure.
Does this calculator include HELP/HECS repayments?
No. Compulsory study loan repayments are not included in this simplified version.
Can I use this if I am not an Australian resident for tax purposes?
This version is intended for Australian resident individual rates. Non-resident calculations use different rules and rates.
What if my result says I owe tax?
That means your estimated final tax liability is higher than tax withheld. You may wish to set aside funds while preparing your return.
Final note
An AUS tax back calculator is best used as an early estimate, not a final assessment. For complex situations—such as investment income, capital gains, sole trader activity, rental property, or foreign income—consider using registered tax advice.