Australian Tax Calculators — Property, Stamp Duty & Business
Model your investment numbers before committing. Every calculator runs in your browser with instant results — no account, no signup, no data sent to a server.
All calculators
Investment Property Calculator
All-in-one: negative gearing, yield, land tax, and CGT
- Negative gearing + yield + CGT + land tax combined
- Who pays: tenant, taxman, or you
Negative Gearing Calculator
Estimate the tax offset and weekly out-of-pocket cost
- Tax saving on your marginal rate
- After-tax weekly out-of-pocket cost
Capital Gains Tax Calculator
Estimate CGT when you sell an investment property
- CGT with 50% discount
- 1-to-30 year holding period comparison
Land Tax Calculator
Compare land tax across all Australian states and territories
- All states side by side
- Tax-free threshold comparison
Rental Yield Calculator
Calculate gross and net rental yield
- Gross and net yield
- Yield quality guide
Stamp Duty Calculator
Estimate stamp duty across all Australian states and territories
- All 8 states + FHB concessions
- Foreign buyer surcharges
GST Calculator
Add or remove 10% GST from any amount
- Add or remove 10% GST
- Bulk line-item mode
BAS Calculator
Estimate your GST payable or refund for BAS
Use calculatorProperty Depreciation Calculator
Estimate Div 43 and Div 40 depreciation deductions
Use calculatorProperty Investment ROI Calculator
Calculate total ROI, CAGR, and cash-on-cash yield
Use calculatorFranking Credits Calculator
Estimate your franking credit refund or tax offset
Use calculatorRedundancy Tax Calculator
Calculate tax on genuine redundancy and ETP payments
Use calculatorRentvesting Calculator
Compare renting while investing vs buying a home
Use calculatorWeekly Tax Calculator
Calculate weekly, fortnightly, and monthly take-home pay after tax
Use calculatorRent Calculator Victoria
Estimate fair rent and maximum annual rent increases in VIC
Use calculatorSole Trader Tax Calculator
Calculate income tax, Medicare, and quarterly PAYG instalments for sole traders
Use calculatorInvestment Property Tax Deductions Calculator
Checklist of claimable deductions with estimated tax saving
Use calculatorLMI Calculator
Estimate lenders mortgage insurance based on LVR and loan size
Use calculatorIncome Tax Calculator
Calculate Australian income tax, Medicare levy, HELP, and MLS for 2025–26
Use calculatorState-specific CGT calculators
Need local context for transfer duty and land tax assumptions before you model a sale? Use a state-specific capital gains tax calculator below.
About these calculators
Property investment in Australia involves interconnected tax rules — negative gearing, depreciation deductions, land tax obligations that vary by state, and capital gains tax when you sell. A single miscalculation can cost hundreds of dollars each year.
The suite includes a negative gearing calculator, capital gains tax calculator, investment property calculator, property depreciation calculator, land tax calculator, stamp duty calculator, and rental yield calculator. Use a focused calculator when you need one answer fast, or start with the investment property calculator when you want cash flow, land tax, depreciation, and CGT in one view.
The collection also includes employment and business tools such as the weekly tax calculator, the sole trader tax calculator, and the PAYG tax table guide for withholding reference.