How is investor or home buyer stamp duty worked out in South Australia?
A $750,000 purchase with a contract signed 4 Nov 2026 pays $35,080 of duty. On the scale it is $21,330 plus 5.5% of the amount over $500,000, $35,080.
More for this state
First home buyer
The duty on a first home in South Australia.
Foreign buyer
The duty and surcharge for a foreign buyer in South Australia.
Land tax
Land tax in South Australia on land you hold.
Capital gains tax
The tax on a sale, worked out.
Where the rules come from
By Varun Agarwal. Updated
- Stamp Duties Act 1923 (SA) s 72 and Schedule 2 item 3
- RevenueSA, rate of stamp duty
- RevenueSA, foreign ownership surcharge
The ATO's figures on what landlords earn and lose, postcode by postcode, are in Rental income, losses and capital gains by postcode, 2023-24.