Australia calculators
Accurate, interactive calculators built for Australia — with Australian tax rules, dollar formatting and local data. Every tool shows its formula and cites its sources. More are added each week.
Finance & mortgage
- Stamp duty calculator
Transfer/land transfer/conveyance duty by state for 2025-26, with first-home concessions, the foreign-buyer surcharge and a state-by-state comparison.
Salary & tax
- GST calculator
Add or remove Australia's 10% GST (the ÷11 rule), with a pre-GST and GST breakdown and the GST-free list.
- Income tax calculator
2025-26 take-home pay: resident tax brackets, the 2% Medicare levy, LITO, HELP/HECS repayment and 12% super, with a per-bracket breakdown.