How is my tax return estimate calculated?
The calculator adds your salary, wages, and other taxable income, then subtracts deductions to get taxable income. It applies 2025–2026 ATO rates for income tax (with LITO applied automatically), Medicare levy (2%), Medicare Levy Surcharge where applicable, and HECS/HELP repayments if selected. Those liabilities are totalled and compared to your PAYG tax withheld to produce a refund or amount owing.
