First home buyer guide SA 2026: grants, stamp duty, every step

Buying your first home in SA in 2026 is genuinely cheaper than in any other state if you buy the right type of property. The catch: the concessions are stacked, conditional, and most lenders only tell you about the one they get paid to push.

This guide walks you through every grant, every threshold, and every fee, in the order you'll encounter them.

The four big SA first home buyer benefits

Benefit	Worth	Catch
First Home Owner Grant (FHOG)	$15,000	New homes only, value ≤ $650,000
Stamp duty concession — new home	Up to ~$29,000 saved	New build ≤ $650k (full), sliding up to $700k
Stamp duty concession — vacant land	Up to ~$15,000 saved	Vacant land ≤ $400,000
Home Guarantee Scheme (federal)	Skip ~$10–25k LMI	5% deposit, income caps, place-capped per year

Stacked together, a SA first home buyer purchasing a $600,000 new house can save $45,000–$55,000 compared to someone buying the equivalent established home with no concessions.

How much deposit do I actually need?

Three paths, three different deposit sizes:

Path 1 — 20% deposit (no LMI)

Standard lender preference. For a $600,000 home: $120,000 deposit + ~$3,000 in fees. You avoid LMI entirely and get the best interest rates.

Path 2 — 10% deposit (pay LMI)

$60,000 deposit. The lender adds Lenders Mortgage Insurance (~$15,000–$20,000) to your loan. Higher repayments forever but you're in the market sooner.

Path 3 — 5% deposit + Home Guarantee Scheme

$30,000 deposit. The federal government guarantees the difference so LMI is waived. You still need to qualify: income under $125,000 single / $200,000 couple, and grab one of the limited annual places.

Use the All-In SA Cost Calculator to model all three paths against any purchase price. It runs the real stamp duty brackets and shows you the monthly repayment difference.

Step-by-step: from "thinking about it" to keys in hand

Step 1 — Get pre-approval (1–2 weeks)

Talk to a broker, not a single bank. Brokers compare 20+ lenders for free (paid commission by the bank). You'll get a pre-approval letter showing your maximum borrowing capacity. This is not a guarantee — it's conditional on valuation and final checks — but agents take you more seriously with one in hand.

Step 2 — Set your real budget

Maximum borrowing ≠ what you should spend. Take your pre-approved amount and work backwards:

• Stamp duty: 0 for new builds ≤ $650k, otherwise check the bracket in our calculator
• LTO transfer fees: ~$5,000 for an average Adelaide purchase
• Conveyancer: $1,500–$2,500
• Building + pest inspection: $400–$600 (skip at your peril)
• Loan application fee: $0–$800
• LMI if <20% deposit, unless on Home Guarantee Scheme
• Moving + utility setup: $1,000–$3,000

Step 3 — Hunt within your concession sweet spot

If you can stretch to $650,000 on a new build, do it. The savings versus a $700,000 new build are roughly $20,000 once stamp duty kicks back in. Versus a $600,000 established home, you save the $15,000 grant + ~$26,000 stamp duty.

This is why SA first home buyers cluster in new estates: Munno Para, Mt Barker, Aldinga, Seaford Meadows, Andrews Farm. The maths is brutal once you cross out of concession territory.

Step 4 — Check the zoning before you fall in love

For house-and-land packages especially, run the address through our Zone Check. You're looking for:

• Bushfire High Risk overlay — adds $15,000–$50,000 to build cost
• Flooding overlay — may require raised slab, harder to insure
• Heritage — usually fine for new estates but check anyway
• Future road widening — affects resale

Step 5 — Spot underquoting before you bid

Adelaide agents typically advertise 10–30% below the actual sale price. Before any auction or offer, run the address through our Price Estimator and read our underquoting guide. Bidding $50,000 over the quote isn't winning — it's discovering the real price.

Step 6 — Read the Form 1 (vendor disclosure)

Every SA seller must give you a Form 1 before contract signing. It's 40+ pages and most buyers skim. Don't. The Form 1 Red-Flag Checker walks you through the 12 things that actually matter — easements, encumbrances, special conditions, statutory charges.

Step 7 — Cooling-off, settlement, keys

SA gives you a 2-business-day cooling-off period after signing (auction purchases are exempt — you're locked in immediately). Use it to do the building and pest inspection if you didn't pre-inspect. Then 30–60 days to settlement, depending on what you negotiated.

The First Home Owner Grant in detail

$15,000, paid via your conveyancer at settlement (or claimed back after if you build). Eligibility:

• You and your partner must be Australian citizens or permanent residents
• You must not have previously owned a home in Australia (either of you)
• You must live in the property as your principal place of residence for at least 6 months, starting within 12 months of settlement
• The property must be a new home — never lived in, or substantially renovated such that it qualifies as new under the Act
• Value cap: $650,000

Apply through your lender at the same time as your loan application. They submit to RevenueSA on your behalf. Direct applications via RevenueSA take 4–6 weeks.

The stamp duty concession in detail

SA's stamp duty concession is the most generous of any state for new-home first home buyers:

Property value	Stamp duty payable (FHB, new home)	Saving vs normal
$500,000	$0	~$21,330
$600,000	$0	~$26,830
$650,000	$0	~$29,580
$675,000	~$14,800 (sliding)	~$16,200
$700,000	~$30,000 (concession ends)	~$1,000

The cliff between $650k and $700k is brutal. If you're sitting at $660k, a builder negotiation that brings it under $650k is worth $20k+ in tax savings. Use the cost calculator for the exact number on your purchase price.

Common first-home mistakes in SA

• Assuming the FHOG applies to established homes. It doesn't. New only.
• Buying just over the $650k cap. A $660,000 new house costs you ~$15k more than the price difference would suggest.
• Skipping the Form 1. Easements, special conditions, and statutory charges can kill a deal post-settlement.
• Trusting the auction guide price. Adelaide underquoting is rampant. Always check our estimator first.
• Not checking bushfire overlays on Hills properties. A $400k block in Stirling can need $50k+ in compliant build costs. Run the Zone Check.
• Forgetting council rates and ESL. Budget $2,500–$4,500/year on top of mortgage repayments.
• Choosing the lender's recommended conveyancer. Get an independent one. Conflict of interest matters.

Frequently asked questions

The bottom line

SA in 2026 is genuinely the easiest state in Australia for first home buyers — if you buy a new home under $650,000. The concessions stack to $40k–$50k in savings. Above that threshold, you're paying full freight like everyone else.

Start with the budget. Then check zoning. Then check underquoting. Then read the Form 1. That's the order that protects you.