The Finance Algorithm
§ Tool · tier 1 · independent

Stamp Duty Calculator.

Calculate stamp duty for all Australian states with AI-powered concession detection

CalculatorFree, no signupOn-deviceupd May 2026
Inputs
Your numbers
$
$800k

Purchase price — every state taxes it differently

Where the property is located

May qualify for stamp duty concessions

Additional surcharges may apply

Math updates live as you change inputs · AI runs on submit

Awaiting inputs

Move the sliders or type in the form on the left — the math updates live as you go. Click Get AI verdict when you want a written analysis.

Stamp duty (transfer duty) is one of the biggest upfront costs when buying property. Rates vary significantly between states and your situation. Our calculator covers all 8 states and territories, automatically checking for concessions you might qualify for.

§ Worked examples

Real-world scenarios

First Home Buyer in NSW

Priya is buying her first home - a $750,000 apartment in Sydney.

Inputs

propertyValue:750,000state:NSWpropertyType:Residential

As a first home buyer purchasing under $800,000, Priya pays $0 stamp duty - saving approximately $29,000 compared to a non-FHB buyer.

Upgrader in Victoria

The Nguyens are upgrading to a $950,000 house in Melbourne. Not first home buyers.

Inputs

propertyValue:950,000state:VICpropertyType:Residential

Stamp duty: approximately $51,000. This must be paid from savings - ensure it's factored into your 20% deposit calculations.

§ FAQ

Questions Australians ask

§ Glossary

Plain-English definitions

Stamp Duty (Transfer Duty)
A state government tax paid when purchasing property. The rate varies by state, property value, and buyer type.
Foreign Buyer Surcharge
An additional stamp duty charge (4-8% depending on state) applied to non-Australian citizens or residents purchasing property.
Dutiable Value
The value on which stamp duty is calculated - usually the higher of purchase price or market value.
First Home Buyer Concession
Reductions or exemptions from stamp duty for eligible first home buyers, with thresholds varying by state.