Stamp Duty Calculator South Australia 2026

How Is Stamp Duty Calculated in South Australia?

Stamp duty — officially called transfer duty or conveyance duty — is a state government tax payable when you purchase property in South Australia. The amount is calculated on the greater of the purchase price or the property's market value, using a tiered rate structure. Higher property values attract progressively higher marginal rates, meaning the effective rate increases as the purchase price rises.

In SA, stamp duty applies to the transfer of all real property including houses, apartments, vacant land, and commercial premises. The rates below apply to standard residential purchases (not off-the-plan or concessional transactions). Investment properties pay the full general rate — first home buyer concessions do not apply.

SA Stamp Duty Rates 2025-2026

The following table shows the current general transfer duty rates for South Australia for the 2025-2026 financial year.

Rates are approximate and based on publicly available information for the 2025-2026 financial year. Always verify with the South Australia revenue office before settlement.

Example: Stamp Duty on a $750,000 Property in SA

On a $750,000 investment property in South Australia, you would pay approximately $35,080 in stamp duty, representing an effective rate of 4.68% of the purchase price. This is payable as a lump sum — it cannot be added to your mortgage. Remember to budget for this cost on top of your deposit, legal fees, and other settlement costs.

First Home Buyer Stamp Duty Exemptions in SA

South Australia does not offer a stamp duty exemption on existing homes for first home buyers. However, first home buyers purchasing a new home (or building a new home) valued up to $650,000 are exempt from stamp duty. There is no sliding-scale concession above this threshold for new homes. SA also provides the First Home Owner Grant of $15,000 for new homes valued under $575,000. For investment properties, the full standard rates apply with no concessions.

Note that first home buyer concessions apply only to owner-occupied purchases — if you are buying an investment property, the full general rates shown above apply. You cannot combine first home buyer concessions with investment property purchases, even if this is your first property.

Foreign Buyer Stamp Duty Surcharge in SA

Foreign buyers in South Australia pay a 7% surcharge on top of standard stamp duty rates. On a $750,000 investment property, this adds $52,500 to the transfer duty, bringing the total to approximately $87,830. The surcharge was introduced in 2018 and applies to foreign individuals, companies, and trusts.

When Is Stamp Duty Paid in South Australia?

In SA, stamp duty must be paid before the transfer of land can be lodged with the Lands Titles Office, which effectively means it is paid at or before settlement. Your conveyancer arranges the payment as part of the settlement process. Interest is charged on late payments by RevenueSA.

Stamp duty is a significant upfront cost that must be factored into your purchase budget alongside the deposit, legal fees, building inspections, and loan establishment costs. Unlike ongoing expenses, stamp duty cannot be claimed as an annual tax deduction. However, it forms part of the property's cost base for capital gains tax (CGT) purposes, reducing your taxable capital gain when you eventually sell.

Additional Notes for SA Stamp Duty

South Australia has a finely graduated rate structure with 9 brackets, making it one of the most granular stamp duty scales in Australia. While the top marginal rate of 5.5% is lower than some states, the effective rate for properties in the $500,000 to $800,000 range is comparable to NSW.

Related Property Calculators

Stamp duty is just one part of the cost of acquiring an investment property. Use our other free calculators to understand the full financial picture.

Stamp Duty in Other States

Considering properties in other states? Compare stamp duty rates across Australia.