Australia Stamp Duty Calculator (NSW, Victoria & Queensland Transfer Duty)

Stamp duty (officially "transfer duty" in most Australian states) is a one-off state tax owed when you purchase real estate, calculated on the property's purchase price or market value, whichever is higher. Unlike many US states' flat-percentage transfer taxes, Australian stamp duty is progressive -- a marginal bracket structure where successive slices of the property's value are taxed at increasing rates, broadly similar in shape to income tax brackets.

Each state and territory sets its own duty schedule entirely independently, and this calculator covers the three largest state property markets by transaction volume: New South Wales, Victoria, and Queensland. Each has its own base rate structure, its own first-home-buyer relief scheme, and its own quirks -- Victoria and Queensland offer lower rates for owner-occupiers versus investors, while NSW applies the same schedule regardless of occupancy but differentiates its first-home-buyer thresholds for vacant land versus completed homes. Queensland additionally offers a standout concession for first home buyers building or buying a genuinely new home: nil duty with no value cap at all, a materially better deal than its established-home first home concession.

1. Standard duty. The property's value is run through the selected state's progressive bracket schedule (NSW and QLD use a marginal bracket structure with rates from under 2% to nearly 6% at the top end; Victoria's structure includes both marginal brackets and, for higher-value general/investment property, a flat-rate band above certain thresholds).
2. Owner-occupier rate (VIC and QLD only). Victoria and Queensland apply a lower rate schedule to a genuine principal place of residence than to an investment purchase; NSW does not distinguish.
3. First-home-buyer concession, if eligible. Each state has its own full-exemption threshold (duty reduced entirely to zero below that value) and a higher concession ceiling above which duty phases back in linearly toward the standard amount.
4. Queensland's new-home exception. For contracts dated 1 May 2025 or later, a first home buyer purchasing or building a genuinely new home in Queensland pays nil duty with no value cap at all -- a distinct, more generous concession than the established-home first home concession.

Using the calculator's default inputs (A$750,000, NSW, standard buyer):

1. Running A$750,000 through NSW's progressive transfer duty brackets produces a standard duty of A$27,937.50.
2. As a standard (non-first-home) buyer, the full standard duty is payable: A$27,937.50.

### The Same Purchase as a First Home Buyer

1. NSW's First Home Buyers Assistance Scheme fully exempts purchases up to A$800,000 for a completed home. A$750,000 falls under that threshold.
2. Duty payable: A$0.00 -- a full A$27,937.50 saving compared to the standard-buyer calculation above.

### Queensland, First Home Buyer, Building a New Home

A first home buyer building a genuinely new A$750,000 home in Queensland pays A$0.00 in duty under the nil-duty new-home concession -- notably, with no value cap at all, unlike the established-home first home concession which does have an upper limit.

### Victoria, Owner-Occupier, Standard Buyer

The same A$750,000 purchase as a principal place of residence in Victoria, without first-home-buyer status, produces a standard duty of A$40,070.00 -- meaningfully higher than the equivalent NSW calculation, illustrating just how much state-to-state variation exists even for comparable properties.

• Only NSW, Victoria, and Queensland are covered. South Australia, Western Australia, Tasmania, the ACT, and the Northern Territory each have their own separate duty schedules and concession rules not modeled here.
• First-home-buyer eligibility itself is not verified. This calculator assumes you already qualify (never having owned property in Australia, intending to move in within the required period, etc.) when the toggle is enabled -- it does not check the underlying eligibility rules.
• Foreign-buyer surcharges, which several states apply as an additional percentage on top of standard duty for non-resident purchasers, are not modeled.
• Off-the-plan concessions, land tax, and other property-related state taxes beyond transfer duty itself are out of scope.
• The Queensland first-home-buyer concession mechanics for established homes use a linear phase-in approximation between the full-exemption and concession-ceiling thresholds, the commonly-published mechanic for NSW and VIC -- QLD's exact phase-in formula for the established-home concession specifically carries a modeling caveat noted in the primitive source file.
• Vacant-land purchases outside NSW's specific vacant-land threshold structure are not separately modeled for Victoria or Queensland.

• Assuming stamp duty rates are the same everywhere in Australia. This calculator's own Victoria-vs-NSW comparison on an identical purchase price shows a difference of over A$12,000 -- state selection matters enormously.
• Not checking first-home-buyer eligibility carefully before assuming the concession applies. Each state's scheme has its own detailed conditions (prior property ownership anywhere in Australia, intended occupancy timelines) that this calculator does not verify.
• Confusing Queensland's new-home concession with its established-home concession. The new-home version has no value cap and is more generous -- don't assume the same concession terms apply to an established (not newly built) home purchase.
• Forgetting Victoria and Queensland's owner-occupier rate distinction. An investment property purchase in either state faces a different (generally higher) rate schedule than a genuine principal-place-of-residence purchase, unlike NSW which doesn't distinguish.
• Ignoring foreign-buyer surcharges if applicable. Non-resident purchasers commonly face an additional percentage surcharge in several states, not included in this calculator's output.

• revenue.nsw.gov.au: NSW transfer duty rate brackets and First Home Buyers Assistance Scheme thresholds, fetched directly.
• sro.vic.gov.au: Victoria's PPR and general land transfer duty rates, and first home buyer exemption/concession thresholds, fetched directly.
• qro.qld.gov.au: Queensland's standard and home concession transfer duty brackets, first home concession for established homes, and the first home new-home nil-duty concession (no value cap, contracts from 1 May 2025), fetched directly.