The postcode lottery: why first home buyers pay $0 stamp duty in Canberra and a real bill everywhere else

On June 30, hundreds of Tasmanian first home buyers watched a deadline they could no longer outrun. On July 1 - one day later - the ACT switched on a stamp duty exemption with no expiry date at all. Two policies, one week apart, moving in completely opposite directions. And neither is the full story: buy the same first home in Canberra, Sydney, Melbourne, Adelaide, Perth or Darwin this month and you'll face a different stamp duty bill in every single one - sometimes zero, sometimes tens of thousands of dollars - purely because of where the property happens to sit. Here's what actually changed, what didn't, and why the postcode you buy in now matters almost as much as the price you agree to pay.

The Week Two Deadlines Collided

Tasmania's first home buyer duty exemption - a full waiver on established homes worth up to $750,000 - expired on 30 June 2026 after running since February 2024. Around 1,700 Tasmanian households used it, saving an average of $18,400 each. The catch that caught buyers out: eligibility is assessed on settlement date, not the date you sign the contract, and with finance and conveyancing timelines routinely running past 30 days, industry figures described it as "statistically impossible" for late movers to make the cut. Buyers who assumed a signed contract locked in the saving found out otherwise, with some suddenly needing tens of thousands of extra dollars to settle.

The very next day, the ACT went the other direction entirely. From 1 July 2026, every first home buyer in the ACT pays zero stamp duty - no price cap, no income test, no taper. On a $1 million home that's roughly $30,000 saved; on a $1.5 million home, closer to $70,000. Chief Minister Andrew Barr called it the completion of a "long-term tax reform program," describing stamp duty as "an inefficient and unfair tax." The Real Estate Institute ACT and Master Builders ACT both welcomed the change, with Master Builders ACT CEO Anna Neelagama calling stamp duty "a deeply inefficient tax."

Mapping the Postcode Lottery

Here's where every jurisdiction actually stands as of this month, verified against each state's own revenue office:

• ACT: Full exemption for all first home buyers, any price, any income, effective 1 July 2026 - the only uncapped, unconditional exemption in the country.
• NSW: Full exemption up to $800,000 (new or established), tapering to a concession up to $1,000,000 - unchanged since July 2023.
• Queensland: New homes get a full exemption with no price cap at all (since May 2025). Established homes get a full exemption up to $700,000, tapering to $800,000 (maximum saving around $24,525).
• South Australia: Full, uncapped duty relief - but only on new homes and vacant land. Buyers of an established home get nothing from this scheme.
• Victoria: Full exemption up to $600,000, tapering to $750,000. Above that, first home buyers pay standard duty like anyone else.
• Western Australia: Thresholds are rising again from 28 July 2026, lifting the full exemption to $600,000 and the concession ceiling to $800,000 - buyers settling just before that date are on the old, lower thresholds.
• Tasmania: The established-home exemption (up to $750,000) has now expired. Standard duty applies to established-home purchases from 1 July 2026 onward.
• Northern Territory: No stamp duty concession of any kind - the only jurisdiction with none - but the largest cash grant in the country, a $50,000 HomeGrown Territory Grant for new home contracts (up from $10,000).

Look closely and the pattern isn't "generous states versus stingy ones." It's that each state is pulling a completely different lever - price caps, property-type restrictions, cash grants instead of duty relief - and a buyer comparing two capital cities on Google is very unlikely to be comparing like with like.

Why the Rest of the Country Probably Won't Follow

Don't expect a rush of copycat announcements. Economists quoted on the ACT's move have warned other states are unlikely to follow, for a structural reason: stamp duty is a major, volatile revenue line for state budgets, and replacing it outright requires a replacement revenue base. The ACT is unusual in that it collects municipal rates itself rather than leaving that to local councils, giving it a lever the states don't have - it can lift rates to offset the lost duty revenue. NSW, Victoria and Queensland don't have that option sitting ready to pull.

There's also a timing risk baked into how stamp duty revenue behaves: when buyers think prices are falling, transaction volumes drop as vendors hold off selling, and duty revenue falls with it - which is exactly the environment several eastern-state markets are in right now. That makes now a particularly awkward moment for any state government to voluntarily give up a revenue stream, no matter how "inefficient" the tax is in theory.

The Strategist's View: What to Actually Do

• If you're buying in the ACT: the exemption is automatic and uncapped - the real work now is on borrowing power and loan structure, not duty minimisation.
• If you're near a threshold in NSW, Victoria or Queensland: a few thousand dollars either side of $600,000-$800,000 can be the difference between full exemption and a real duty bill. Get your finance pre-approved before you set a price ceiling, not after.
• If you missed Tasmania's cut-off: don't assume the exemption is retrospective or negotiable - it isn't. Budget standard duty into your numbers from here and revisit whether a new-build (which may attract different concessions) changes the maths.
• If you're buying in WA before 28 July 2026: check whether waiting a few weeks for the higher thresholds actually saves you more than the cost of delaying settlement - it's close for many purchases.
• If you're choosing between a new build and an established home in Queensland or South Australia: the gap between the two is now large enough to change which one makes sense, independent of which you'd otherwise prefer.

None of this changes the bigger question every first home buyer still has to answer - how much you can actually borrow, and what that borrowing costs month to month. Our first home buyer guide walks through the schemes available on top of state duty relief, and our borrowing power estimator is the right place to start before you fall in love with a number your state's rules won't actually let you keep.