How the estimate works
- Taxable income: your salary plus other income, minus deductions.
- Tax for the year: 2026–27 income tax rates (nothing on the first $18,200, then 15%, 30%, 37% and 45%), less the low income tax offset of up to $700, plus the 2% Medicare levy. If you have a study loan we add the compulsory repayment, and if you earn over $105,000 without private hospital cover we add the Medicare levy surcharge.
- Tax withheld: what your employer takes out of each pay under the ATO's withholding formulas, across a full year.
- Refund or bill: tax withheld minus tax for the year.
Why most people with one job get a small refund or none
The withholding formulas are designed to take out close to the right amount over a year. With one job, no deductions and no other income, the difference is usually small:
| Salary | Tax for the year | Withheld | Refund |
|---|---|---|---|
| $60,000 | $9,620.00 | $9,724.00 | $104.00 |
| $85,000 | $17,720.00 | $17,732.00 | $12.00 |
| $120,000 | $28,920.00 | $28,964.00 | $44.00 |
Bigger refunds usually come from deductions, and bills usually come from income with no tax withheld, a second job, or a study loan your employer didn't know about.
This is an estimate. It assumes you're single with no dependants and one employer for the full year, and approximates study loan and surcharge income by taxable income. The ATO hasn't yet set the 2026–27 Medicare levy low-income thresholds, so we use the latest legislated ones. Your actual result comes from your tax return.