First Home Buyer Stamp Duty in South Australia
South Australia abolished stamp duty for eligible first home buyers on new homes and vacant land — with no price cap — from 6 June 2024. Established homes, however, receive no first-home concession and pay the full duty schedule. In SA, new versus established is the single biggest cost decision.
Estimated first-home duty at different prices
These are planning estimates for an eligible SA first home buyer, using the current thresholds. Treat them as a ballpark — the exact figure depends on your circumstances and the property type, so always confirm with RevenueSA.
| Purchase price | New build | Established | No concession |
|---|---|---|---|
| $500,000 | $0 | $25,000 | $25,000 |
| $600,000 | $0 | $30,000 | $30,000 |
| $700,000 | $0 | $35,000 | $35,000 |
| $800,000 | $0 | $40,000 | $40,000 |
| $900,000 | $0 | $45,000 | $45,000 |
| $1,000,000 | $0 | $50,000 | $50,000 |
“No concession” shows the approximate duty a non-first-home buyer would pay at the same price, so you can see what the first-home concession is worth to you.
New homes and vacant land: fully exempt
If you're an eligible first home buyer purchasing a new home or vacant land on which you'll build your first home, South Australia charges no stamp duty at all, at any price. This is one of the most generous settings in the country and directly rewards building or buying new.
To qualify you must be a natural person buying your first home as your principal place of residence, meet residency requirements, and the property must be new (not previously occupied or sold as a residence) or genuine vacant land for your build.
Established homes: full duty applies
There is no first-home stamp-duty concession for an established home in South Australia — you pay the ordinary residential rates. On a $600,000 established home that's a real, five-figure cost that simply doesn't exist if you buy new instead.
The planning implication is stark: in SA, an eligible first home buyer choosing a new build over an equivalent established home can save the entire duty bill. If you have any flexibility on property type, model both before you commit.
Grants stack on top of the duty concession
The SA First Home Owner Grant adds $15,000 on eligible new homes (uncapped in value since mid-2024) — cash on top of the new-home duty exemption.
In planning terms, a duty concession lowers what you need at settlement, while a grant adds cash back afterwards. Model both to see your true total cash position — the calculator handles the duty side and shows total cash needed for SA.
This is general information, not financial or tax advice. Stamp-duty rules change with each state budget — figures are current as of July 2026. Always confirm the exact concession, grant and eligibility with RevenueSA before you buy.
I'm a geologist-turned-builder who got frustrated with financial calculators that hand-wave how Australian tax actually works.
Every projection on MyNextDollar runs on current ATO mechanics for FY2026-27 — Stage-3 brackets, super contribution caps and HELP thresholds.
The calculation engine is covered by 88 unit tests and 10,000 fuzz scenarios, so what you see is exactly what the rules produce — not a rough estimate.