Stamp duty (formally known as transfer duty in most Australian states) is a government tax payable when you purchase property. Because rates, thresholds and available concessions differ between every state and territory, calculating the correct amount requires using the rules that apply to the specific location of the property you are buying. This page explains what stamp duty is, why it varies across Australia, what factors affect the amount you pay, and where to find accurate, up-to-date figures for your situation.
Stamp duty is a state or territory tax on property transfers. The value basis, rates, exemptions and payment deadline depend on the jurisdiction and transaction. Ask the revenue authority or your conveyancer when duty is due for your contract; do not assume one national deadline.
Because stamp duty is administered independently by each state and territory government, there is no single national rate. The applicable rate, any available exemptions, and the eligibility criteria for concessions (such as first home buyer discounts) are all determined by the revenue authority in the jurisdiction where the property is located.
Each of Australia's six states and two self-governing territories sets its own legislation, rate scales and concession programs. As a result, the stamp duty payable on an identical purchase price can differ significantly depending on which side of a state border the property sits. Key variables include:
| Factor | Why It Matters |
|---|---|
| State or territory of the property | Determines which rate schedule and concessions apply |
| Purchase price or market value | Most scales are tiered; higher values attract higher marginal rates |
| First home buyer status | Many jurisdictions offer exemptions or discounts below certain price thresholds |
| Residential vs. investment use | Principal place of residence concessions may not apply to investment purchases |
| New vs. established property | Some states distinguish between new builds and existing homes for concession eligibility |
| Vacant land | Often taxed at a different rate or threshold to improved property |
| Foreign buyer surcharges | Additional duty may apply depending on the jurisdiction, purchaser status and transaction; check the relevant authority. |
Because these factors interact differently in each jurisdiction, a general estimate should always be verified against the official revenue authority for the state or territory concerned before making financial decisions.
Natloans provides an interactive stamp duty calculator on its website to help you form a working estimate for your purchase. You can access the tool directly at:
natloans.com.au — Stamp Duty Calculator
When using any online calculator, check the assumptions the tool applies before relying on the result. Rate schedules and concession thresholds change over time, and a calculator result is an estimate only — not a legally binding assessment of duty payable. For a confirmed figure, always refer to the official revenue authority in the relevant state or territory, or speak with a qualified professional.
The most reliable source for stamp duty amounts, concession eligibility and payment deadlines is the official revenue authority for the state or territory where the property is located. Each authority publishes its own rate schedules, concession criteria and online calculators.
A useful starting point for locating the relevant authority is the Australian Government's Moneysmart home-buying guide, which links to state and territory duty calculators:
moneysmart.gov.au — Buying a House
Moneysmart is operated by the Australian Securities and Investments Commission (ASIC) and provides independent, government-backed financial guidance.
Include stamp duty in the total funds needed for your purchase, alongside the deposit and other costs. Do not assume the approved loan covers it. Ask your lender or broker how your savings, approved borrowing, security value and any scheme conditions affect the funds required at settlement.
If you are unsure how stamp duty fits into your overall purchase budget or how it affects the deposit you need, speaking with a mortgage broker can help you map out the full cost picture before you commit to a purchase. Confirm the specifics of your situation with Natloans or a qualified finance professional.
Use the official revenue authority for the state or territory where the property is located to check the applicable duty and any available concessions. The Moneysmart home-buying guide provides links to state and territory duty calculators and is a reliable starting point: moneysmart.gov.au/home-loans/buying-a-house.
The interactive tool is available on the Natloans website at natloans.com.au/calculators-tools-loan-calculator/stamp-duty-calculator/. Check the assumptions the tool applies before relying on the estimate, as rate schedules and concession thresholds are subject to change.
No. Stamp duty rates, thresholds and concession programs are set independently by each state and territory government. The amount payable on the same purchase price can differ substantially depending on where the property is located.
Many Australian jurisdictions offer stamp duty exemptions or concessions to eligible first home buyers, often subject to price caps and other conditions. Eligibility criteria and thresholds vary by state and territory and are updated periodically. Confirm current eligibility with the relevant revenue authority or with Natloans.
Whether available borrowing can help meet purchase costs depends on lender approval, security, serviceability and any scheme restrictions. This page cannot establish that it is always excluded or always financeable. Confirm the required cash contribution and payment deadline with your lender and conveyancer.
Yes, stamp duty applies to investment property purchases. However, concessions available to owner-occupiers or first home buyers may not apply to investment purchases. Check the rules in the relevant state or territory for your specific circumstances.
Some jurisdictions offer concessions or duty reductions for new homes or off-the-plan purchases. The availability and terms of these concessions vary by state and territory and are subject to change. Refer to the relevant revenue authority for current details.
Online calculators provide estimates based on the rate schedules and assumptions programmed into them at a point in time. Because state and territory governments update their rules, any calculator result should be treated as a guide only and verified against the official revenue authority before making financial decisions.
Stamp duty rates, thresholds and concession eligibility are set by state and territory governments and are subject to change. Information on this page is general in nature and does not constitute legal, tax or financial advice. Confirm all figures and eligibility with the relevant revenue authority or a qualified professional before making decisions. Calculator results are estimates only.
The source links to these pages and advertises access to over 50 lenders. This is a source-date panel claim, not a verified eligibility or approval result.
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