Official-source calculations

South Australia stamp duty calculator

Estimate South Australia stamp duty and registration costs

Estimate South Australian stamp duty and registration fees using the property and buyer details you enter. Relief and grants are shown separately. This is the same SA property costs calculator used on the buying-costs and first-home support pages.

Free to useNo account neededNo contact details neededSA rules verified 23 August 2026
About this calculator, sources and FAQs

SA stamp duty calculator

Estimate South Australia stamp duty and registration costs

The calculator applies the supported South Australian conveyance-duty rules to the facts you enter and keeps stamp duty separate from transfer registration, mortgage registration and buyer benefits. It is an estimate, not a RevenueSA assessment.

Dutiable value matters

For an ordinary supported transaction, duty can depend on the value recognised under the South Australian rules rather than simply assuming every purchase price is the correct duty basis. The detailed pathway asks when that distinction may matter.

Bracket calculations stay source-backed

The calculation engine uses the verified South Australian conveyance-duty brackets and rounding rules maintained from official sources. The site does not copy figures from competitor calculators.

Relief is not assumed

Supported first-home or other relief is only included after the required facts are confirmed. If eligibility is uncertain, the calculator keeps the benefit out of the result rather than presenting it as guaranteed.

Worked Adelaide examples

Figures below are produced by this site’s SA calculator for an established home where the purchase price equals market value, the buyer is not claiming first-home relief, and a mortgage is registered. Rule snapshot verified 23 August 2026 (sourced from RevenueSA stamp duty rates and the SA 2026–27 land-registration fee notice). General information only — not a RevenueSA assessment.

$550,000 established home

Stamp duty $24,080. Transfer registration $5,603. Mortgage registration $204. Estimated government charges payable $29,887.

$750,000 established home

Stamp duty $35,080. Transfer registration $7,703. Mortgage registration $204. Estimated government charges payable $42,987.

$950,000 established home

Stamp duty $46,080. Transfer registration $9,803. Mortgage registration $204. Estimated government charges payable $56,087.

Stamp duty questions

How is South Australian stamp duty calculated?

Conveyance duty uses RevenueSA’s published brackets on the dutiable value, with each marginal part of $100 charged as a whole $100. See the RevenueSA rate of stamp duty table. This calculator applies those brackets from its verified rule snapshot.

Is stamp duty the only government cost when buying property?

No. Transfer registration and, where relevant, mortgage registration are separate government charges. The calculator itemises them rather than combining everything into one unexplained figure.

When does stamp duty arise on a purchase?

Stamp duty is calculated on the dutiable conveyance. Registration fees are separate and relate to lodging dealings with Land Services SA. Final timing and payment treatment are set by RevenueSA and the registration authority — this site estimates amounts from the facts you enter, not lodgement deadlines.

Do first-home buyers always pay less stamp duty?

No. RevenueSA first-home stamp duty relief applies only to supported property types such as a new home, off-the-plan apartment, or vacant land to build on — not an established home. See RevenueSA eligible properties. The calculator only includes relief after the required facts are confirmed.

What about off-the-plan or new homes?

New homes and off-the-plan apartments can qualify for first-home duty relief when RevenueSA’s applicant and residence rules are also met. Established homes do not. Check RevenueSA first-home buyer relief and use the calculator’s first-home pathway rather than assuming a discount.

Does the calculator guarantee a final duty amount?

No. It provides an estimate from the supported facts and verified rule period. RevenueSA and the relevant registration authority determine final treatment and amounts.