ATO Tax Calculator (Estimate)
Use this calculator to estimate Australian income tax, Medicare levy, HELP/HECS repayments, and your likely refund or amount owing.
This is a simplified estimate based on common ATO-style rules and should not be treated as personal tax advice.
How this Australian Tax Office tax calculator helps
If you want a quick estimate of your tax before lodging your return, this tool gives you a practical starting point. It estimates:
- Income tax based on resident or non-resident tax rates
- Low Income Tax Offset (LITO) for eligible residents
- Medicare levy (optional)
- HELP/HECS repayment amounts (optional)
- Likely refund or amount owing when tax withheld is entered
Estimated resident tax brackets (FY 2025–26 style)
| Taxable income | Estimated tax on this income |
|---|---|
| $0 – $18,200 | Nil |
| $18,201 – $45,000 | 16c for each $1 over $18,200 |
| $45,001 – $135,000 | $4,288 + 30c for each $1 over $45,000 |
| $135,001 – $190,000 | $31,288 + 37c for each $1 over $135,000 |
| $190,001 and over | $51,638 + 45c for each $1 over $190,000 |
What the calculator includes
1) Income tax
The tool applies marginal tax rates to your taxable income. This means only the part of your income in each bracket is taxed at that bracket’s rate.
2) Low Income Tax Offset (LITO)
For residents, the calculator includes an estimated LITO reduction where applicable. This lowers tax for lower and middle income ranges.
3) Medicare levy
When enabled, the calculator adds a simplified Medicare levy estimate. Low-income reductions are approximated, and the final levy may differ from your return.
4) HELP/HECS debt repayment
If you tick the HELP option, the tool applies an estimated repayment rate based on your income threshold band.
What this calculator does not include
- Exact private health insurance adjustments and Medicare levy surcharge
- Detailed offsets, deductions, and special tax concessions
- Capital gains tax events and investment-specific adjustments
- Business, trust, partnership, or company tax calculations
How to use it in 4 quick steps
- Enter your annual taxable income.
- Add tax already withheld by your employer (optional but useful).
- Select resident status and tick Medicare/HELP options as needed.
- Press Calculate to view annual tax and take-home pay breakdown.
Tips to improve your tax outcome
- Keep records of deductible expenses throughout the year.
- Review salary sacrifice and super contribution opportunities.
- Check PAYG withholding so you avoid a surprise tax bill.
- Use official ATO guidance or a registered tax agent for complex returns.
Important note
This page is designed for planning and education. Tax law changes over time, and your final result depends on your personal circumstances. For official calculations, always confirm with current ATO information or a qualified tax professional.